Fluid Power Journal January/February 2018

JANUARY/FEBRUARY 2018 fluidpowerjournal.com

SHOT BLASTING ROBOT ENHANCED WITH SHORTER AIR LINES P.16

ISSUE FEATURES

AUTOMATION,

Appropriate Solution to

Control Air Cylinder Speed Innovative Designs & Publishing • 3245 Freemansburg Avenue • Palmer, PA 18045-7118

ROBOTICS, CYLINDERS

Nonprofit Organization US Postage PAID Bolingbrook, IL Permit #323

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IN THIS ISSUE J A N U A R Y/ F E B R U A R Y 2 0 18 VOLUME 25 • ISSUE 1

Features 6

IS YOUR AIR DRYER Eating Your Profits?

30

16 SHOT BLASTING for Hard Surfaces 24 NEXT GENERATION HYDRAULIC FLUIDS: High-Performance and

Environmental Safety

43

30 QUICK-CHANGING ROBOTS

Departments

34 DETERMINE THE

APPROPRIATE SOLUTION

to Control Air Cylinder Speed 40

HOLD IT RIGHT THERE: Methods for Stopping a Linear Pneumatic Actuator’s Movement in Mid-stroke

43

TAKE YOUR BEST SHOT Enter the 2018 Fluid Power Photo Contest for a Chance to Win Money and Get Published!

44

ICUEE 2017: The Show Delivers Innovative Industry Trends, Hands-On Experiences, and Enthusiastic Crowds

4

NOTABLE WORDS

8

IFPS UPDATES

17 INDUSTRY NEWS 18 PRODUCT SPOTLIGHT 23 INDUSTRY NEWS 26 NFPA UPDATES

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32 FIGURE IT OUT 33 PRODUCT REVIEW 36 RESEARCH TO WATCH 37 LITERATURE REVIEW 46 CLASSIFIEDS

PUBLISHER’S NOTE: The information provided in this publication is for informational purposes only. While all efforts have been taken to ensure the technical accuracy of the material enclosed, Fluid Power Journal is not responsible for the availability, accuracy, currency, or reliability of any information, statement, opinion, or advice contained in a third party’s material. Fluid Power Journal will not be liable for any loss or damage caused by reliance on information obtained in this publication.

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NOTABLE WORDS

PUBLISHER

The Value of Fluid Power Training and Certification

INNOVATIVE DESIGNS & PUBLISHING, INC. 3245 Freemansburg Avenue, Palmer, PA 18045-7118 Tel: 800-730-5904 or 610-923-0380 Fax: 610-923-0390 • Email: AskUs@ifps.org www.FluidPowerJournal.com Founders: Paul and Lisa Prass Associate Publisher: Bob McKinney Editor: Gerald Irving Technical Editor: Dan Helgerson, CFPAI/AJPP, CFPS, CFPECS, CFPSD, CFPMT, CFPCC - CFPSOS LLC Art Director: Quynh Vo Eastern Region Account Executive: Norma Abrunzo Western Region Account Executive: Maggie Wu Director of Creative Services: Erica Montes Accounting: Donna Bachman, Debbie Clune Circulation Manager: Andrea Karges

BY D. DEAN HOUDESHELL, PE, CFPAI, CFPE, 2018-2019 PRESIDENT, IFPS

INTERNATIONAL FLUID POWER SOCIETY

If your experience is at all like mine, you entered your first fluid power job with little experience and understanding of hydraulics or pneumatics.

Scarcer yet was an understanding of fluid power system design. Fortunately for me, I landed a job early in my career with a company that provided IFPS training and encouraged employees to get certified. Looking back now, I see clearly the value of those early training classes and fluid power certification.

At my first job, I was eager to learn but most of my training was on the job. This training consisted of troubleshooting hydraulic issues on the manufacturing floor and hoping I could turn the right knob or move the right hoses to get the desired outcome. Frustration would often set in, but I did get a lot of handson experience with hydraulics.

At my next job, certification training gave me an opportunity to gain an understanding of hydraulics and hydraulic systems. I learned how to read hydraulic schematics, troubleshoot systems, and perform preventative maintenance. This gave me the confidence to work with employees on the plant floor as well as customers needing help in the field. The other thing it gave me was a path to develop my skills. I got my first certification as a mobile hydraulic mechanic. Next, I successfully completed mobile hydraulic technician and specialist certifications.

Now, years later as I take the reins as 2018 President of the IFPS, I believe we have a stronger message than ever to get out into the industry. I have long thought that fluid power training and certification offer a competitive advantage for individuals as well as companies. For individuals seeking a new job opportunity or promotion at their current company, fluid power certification shows a commitment to professional development, as well as demonstrating knowledge of the industry. Companies providing IFPS training and certification for employees can expect better quality, safer work environments and improved job satisfaction.

As we enter this new year, please join me in promoting the IFPS by sharing your story about the value of fluid power training and certification. Engage in conversations with colleagues and share on social media. If you haven’t already, add your certification(s) to your LinkedIn account, your business card and your e-mail salutation. Finally, I invite you to get involved by joining a committee or joining us for one of our meetings this year. Together we can make a difference.

2018 BOARD OF DIRECTORS President & Chairperson Dean Houdeshell, PE, CFPAI/AJPP, CFPE, CFPS, CFPIHT, CFPMHT, CFPMHM - Cemen Tech Inc. Immediate Past President Richard Bullers, CFPPS - SMC Corporation of America First Vice President Timothy White, CFPAI/AJPP, CFPS, CFPECS, CFPMIH, CFPMMH, CFPMIP, CFPMT, CFPMM - The Boeing Company Treasurer Jeff Kenney, CFPIHM, CFPMHM, CFPMHT - Coastal Hydraulics, Inc. Vice President Certification Denis Poirier, Jr., CFPAI/AJPP, CFPCC, CFPHS,CFPIHM - Eaton Corporation - Hydraulics Group Vice President Marketing & Public Relations Scott Nagro, CFPS - HydraForce, Inc. Vice President Education Kenneth Dulinski, CFPAI/AJPP, CFPECS, CFPHS CFPMIH, CFPMMH Macomb Community College Vice President Membership & Chapter Support Rocky Phoenix, CFPMHT, CFPMHM - Open Loop Energy

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JANUARY/FEBRUARY 2018

1930 East Marlton Pike, Suite A-2, Cherry Hill, NJ 08003-2141 Tel: 856-489-8983 • Fax: 856-424-9248 Email: AskUs@ifps.org • Web: www.ifps.org

DIRECTORS-AT-LARGE Chauntelle Baughman, CFPHS - OneHydrauics, Inc John A. Bibaeff, Jr., PE, CFPS - Lamb Services, Inc. Randy Bobbitt, CFPHS - Danfoss Power Solutions Elisabeth DeBenedetto, CFPS - Argo-Hytos Brandon Gustafson, PE, CFPE, CFPS, CFPIHT, CFPMHM - Graco, Inc. Jeffrey Hodges, CFPAI/AJPP, CFPMHM - Altec Industries, Inc. Sam Kaye, CFPS, CFPMT, CFPMM, CFPMIH CFPMMH, CFPMIP - Ensign Energy Services Lynn Nordquist, CFPS - Skarda Equipment Company Robert Post, CFPHS - Bailey Hydraulics Edwin Rybarczyk, CFPAI/AJPP, CFPS - NTT Training Scott Sardina, PE CFPS - Waterclock Engineering Mohaned Shahin, CFPS - Parker Hannifin HONORARY DIRECTORS John Groot Robert Sheaf, CFPAI/AJPP, CFPE, CFPS, CFPECS, CFPMT, CFPMIP, CFPMMH, CFPMIH, CFPMM IFPS STAFF Executive Director: Donna Pollander, ACA Communications Manager: Adele Kayser Client Data Manager: Sue Dyson Business Development Manager: Pat Maluso, CFPAI Assistant Director: Jeana Hoffman Certification Logistics Manager: Susan Apostle Bookkeeper: Diane McMahon Administrative Assistant: Beth Borodziuk Fluid Power Journal (ISSN# 1073-7898) is the official publication of the International Fluid Power Society published bi-monthly with four supplemental issues, including a Systems Integrator Directory, OffHighway Suppliers Directory, Tech Directory, and Manufacturers Directory,

by Innovative Designs & Publishing, Inc., 3245 Freemansburg Avenue, Palmer, PA 18045-7118. All Rights Reserved. Reproduction in whole or in part of any material in this publication is acceptable with credit. Publishers assume no liability for any information published. We reserve the right to accept or reject all advertising material and will not guarantee the return or safety of unsolicited art, photographs or manuscripts.

WWW.FLUIDPOWERJOURNAL.COM • WWW.IFPS.ORG

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Much time is often spent looking for leaks and finding inappropriate end uses in an industrial plant in an effort to save money.

But often overlooked is a key compressed air consumption right inside the compressor room itself.

Desiccant air dryers can consume a surprisingly large percentage of the total air compressor output.

IS YOUR AIR DRYER EATING YOUR PROFITS?

By Ron Marshall

This malfunctioning air dryer eats 75% of the compressor output.

NEED FOR DRY AIR

The compressed air coming out of an air compressor is normally 100 percent saturated with water vapor and is typically produced at significantly higher temperature than ambient conditions. If this air is allowed to cool in the plant piping, the water will condense out of the air, forming free water, which mixes with rust, scale, oil and dust in the pipes to form a sticky sludge that will ruin compressed-air tools and clog the pneumatic circuitry of compressed-air-operated production machines. Some sort of air dryer is needed to remove the moisture and reduce the dew point of the air well below ambient conditions. The most common style of dryer used for this purpose is the refrigerated type, which cools the air, separates its moisture and produces dew points of about 35 degrees F. But sometimes there is a need for instrument-quality air, or air that can be used outside in freezing conditions. If this is the case, the refrigerated dried air is unacceptable. A desiccant style dryer must be used.

DESICCANT DRYER OPERATION

Desiccant dryers use a material, most commonly activated alumina, to strip the moisture from the compressed air through an adsorption process, most commonly producing compressed air that is in the minus 40 degree range. When activated alumina is pressurized, it removes the water from the flow of compressed air until the material becomes totally saturated. The most common way to regenerate the desiccant material, removing this moisture, is to depressurize it to near atmospheric pressure and pass very dry compressed air through it. Once this is done the desiccant returns to a ready state for more drying. Obviously this cannot be done without disturbing the flow of compressed air through the dryer, so heatless desiccant dryers are designed to dry with one vessel filled with desiccant while regenerating another twin vessel. The dryer switches from one tower to the other every 10 minutes, alternately using each tower to dry and then regenerate. This regeneration takes between 15 and 20 percent of the dryer rated flow on a dryer operating with a fixed timer cycle. The purge is released through a muffler and is lost to atmosphere.

CHECK THE WORDING: RATED FLOW

The last sentence is important: The regeneration purge takes 15 to 20 percent of the rated flow of the dryer. This means if the dryer is partially loaded, or much larger than the running compressor, the percentage of the purge flow compared to the actual compressed air flow produced by the compressor can be much higher than this nominal 15 to 20 percent. For example, if the dryer is only

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JANUARY/FEBRUARY 2018

WWW.FLUIDPOWERJOURNAL.COM • WWW.IFPS.ORG

50% loaded, the real percentage of the actual flow becomes 30 to 40 percent of the total. If only 25 percent loaded, then 60 to 80 percent of the total flow can be consumed.

CONTROLS SAVE

This percentage can be reduced by using energy efficient dryer controls that turn off the dryer purge when not required, if the desiccant is not saturated after a normal timer cycle. A dew point sensor samples the air and only activates the purge flow whenever the dew point reaches a certain trigger level. This can greatly reduce the purge rate percentages and save energy. But these controls are sensitive to oil and water contamination and therefore need maintenance. Often calibration of these controls is not done, basically disabling an important energy savings feature. The dryer in the photograph is an oversized 250 cfm dryer that has a failed control. The 40 cfm purge flow it consumes makes up 75% of all the air the plant compressor produces.

HOW MUCH CAN BE SAVED

In this case the air dryer has been oversized and is quite a bit larger than the 160 cfm air compressor it is matched with. The dryer was purchased at auction for a very low price, a real sweet deal. The compressor produces compressed air at 25 kW per 100 cfm so the dryer purge is costing about $8,400 per year at 10 cents per kWh, more than the purchase price of the dryer. The actual plant flow is only about 13 cfm, about 5 percent of the capacity of the dryer; therefore, with a working dewpoint control, the purge could be turned down about 90 percent after accounting for the required 15 percent purge flow. The savings for repairing the control (or replacing the dryer with a new one) would be about $7,560 per year. In this case the control repair was estimated to cost $3,000, something the plant maintenance personnel think is quite costly, but if implemented it would make the simple payback on the work about 5 months.

Ron Marshall is owner of Marshall Compressed Air Consulting, a company that specializes in compressed air efficiency assessments.

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Gear Pumps & Gear Motors from CRS Service

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We can assist you with crossing your current unit or custom designing a unit to perfectly fit your application needs.

Call us today to talk to one of our knowledgeable customer service representatives.

CRS is proudly celebrating 50 years of service and dedication to the hydraulic industry!

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Join the LinkedIn discussion group: Compressed Air Efficiency

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HONORARY LIFETIME MEMBERSHIP GRANTED Congratulations to James (Jimmy) Simpson, CFPAI, for his newly appointed Honorary Lifetime Membership status.

A motion was made during the IFPS Annual Meeting nominating Jimmy for this honor for his contributions to the IFPS over many, many years. The motion was unanimously approved.

IFPS Honorary Lifetime Membership is designed for a nominated professional member who has significantly contributed to the IFPS and its mission. In addition, IFPS presidents are granted this status after their terms. Honorary Lifetime Membership status must be approved by the Board of Directors.

IMPORTANT ANNOUNCEMENT

Update Your Profile!

IFPS WILL LAUNCH A NEW, CLOUD-BASED WEBSITE IN MARCH 2018.

It is essential your current contact information, especially your email address, is accurate. Your new IFPS account will be accessed through your email address on the new website when it is launched. Visit www.ifps.org and click on “My IFPS Profile” to update your contact information.

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12.01.2016 07:04:01 WWW.FLUIDPOWERJOURNAL.COM • WWW.IFPS.ORG

Custom Industrial Control Handles, Pendants, Joysticks and Switches

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FEBRUARY 27 - MARCH 1, 2018 • EMBASSY SUITES • ALBUQUERQUE, NEW MEXICO

TECHNICAL WORKSHOP

Monday, February 26 8:00 AM – 4:00 PM Fee: $150 (lunch included)

“A System Approach to Hydraulic Design for Identifying and Mitigating Hazards” Presented by: Gregory George, CFPAI, Applied Industrial Technologies This workshop will focus on building blocks for designing safe systems. Topics will include: • Common methods for preliminary hazard identification.

• Qualifying identified hazards.

• Mitigating hazards in hydraulic systems.

• Failure modes and effects analysis and how to use it.

• Fault tree analysis.

SCHEDULE OF EVENTS Monday, February 26, 2018 8:00 AM–4:00 PM Technical Workshop 1:00 PM–4:00 PM Job Performance Testing

JANUARY/FEBRUARY 2018

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WWW.IFPS.ORG • WWW.FLUIDPOWERJOURNAL.COM

Thursday, March 1, 2018 8:00 AM–11:00 AM Marketing

Committee Meeting 11:00 AM–12:00 PM Finance

Committee Meeting 12:00 PM–1:00 PM Hosted Lunch 1:00 PM–2:00 PM Board of Director’s Meeting 2:00 PM–3:00 PM Strategic Planning Follow-Up

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Tuesday, February 27, 2018 8:00 AM–9:00 AM Strategic Planning Meeting 9:00 AM–11:30 AM Education Committee Meeting 11:30 AM–12:30 PM Hosted Lunch 12:30 PM–2:30 PM Membership

Committee Meeting 3:00 PM–5:00 PM Tour 6:00 PM–7:30 PM Welcome Reception 8:00 PM–9:30 PM Night out

Wednesday, February 28, 2018 8:00 AM–12:00 N Certification

Committee Meeting 1:00 PM–4:00 PM Tour 6:30 PM–9:00 PM Annual Dinner

8901-D Flex-Core

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Network with industry professionals during the IFPS Spring Meeting being held February 27 - March 1, 2018, at the Embassy Suites, Albuquerque, New Mexico.

Get involved - there’s bound to be a committee that meets your interest, and we welcome your expertise!

In addition to committee and board meetings, optional activities are planned throughout the week, as well as a technical workshop and job performance test, which will be held on Monday, February 26, 2018. Participation in this workshop contributes towards re-accreditation and recertification requirements.

You may register for the meeting and/or workshop by visiting www.ifps.org or by calling IFPS Headquarters at 800-308-6005.

HOTEL RESERVATIONS Hotel reservations can be made online by visiting www.ifps.org or by calling the Embassy Suites at 505-245-7100. A discount hotel rate of $121.00+tax /night has been secured. Be sure to mention you are with the International Fluid Power Society to secure the group rate.

Reservations must be made by January 27, 2018 to receive the discounted rate.

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Updated IFPS Accredited Instructor Certification The IFPS Certification Committee recently updated the requirements for becoming an Accredited Instructor (AI) as well as the AI Instructor Training Workshop framework.

The AI workshop is a two-day workshop to acquaint you with the IFPS certification program and to assess your instructional abilities.

It is not a program to teach instructor skills, but rather to measure your instructor skills.

UPDATED REQUIREMENTS • Individual must hold at least one IFPS certification before attending the Instructor Training Workshop (ITW.) (See below.)

• Maintain IFPS membership and certification(s).

• Register for and attend an ITW. • Select a topic from a topics list and prepare to present the selected topic for 40 minutes, with a 5 minute Q&A session.

• An AI applicant must sign an AI agreement upon completion of the ITW.

• Submit a presentation outline on the selected topic. The outline should be submitted by e-mail as a .DOC, .PPT, etc. In lieu of an outline, full presentations may be e-mailed.

UPDATED WORKSHOP FRAMEWORK Deep dive into IFPS programs will be covered in a ½ day session.

The applicant will conduct a 40 minute presentation with a five minute Q&A session. Note: Speaking for less than 40 minutes will result in an incomplete evaluation.

Evaluations • In addition to the facilitators’ evaluations, all applicants will evaluate each other’s presentations.

Evaluations will be based on: • Knowledge of topic, • Public speaking aptitude, • Appropriate use of training materials and aids, • Ability to follow submitted outline, and • Question and answer session.

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In order to be approved as an IFPS Accredited Instructor a minimum evaluation score of 4.0 out of 5.0 is required.

IFPS Accredited Instructors have extensive backgrounds and instructional experience in the fluid power industry. In addition to their instructor accreditation, they are committed IFPS members and hold various levels of IFPS certifications.

To register for the upcoming AI Training Workshop to be held March 19-21, 2018 in Detroit, Mich., please visit www.ifps.org or call 800-308-6005.

Have a Knack for Training?

GET CERTIFIED AS AN IFPS ACCREDITED INSTRUCTOR IFPS will hold Accredited Instructor and Job Proctor workshops in Detroit, Michigan on the following dates: March 19-20, 2018 Accredited Instructor Training Workshop March 21, 2018 Mechanic and Technician Job Performance Proctor Workshop March 21, 2018 Connector and Conductor Job Performance Proctor Workshop IFPS Accredited Instructors (AI) are certified professionals who educate, train and prepare candidates for IFPS Certification Programs. AIs have extensive backgrounds and instructional experience in the fluid power industry. In addition to their instructor accreditation, they are committed IFPS members and hold various IFPS certifications.

IFPS Authorized Job Performance Proctors (AJPP) are individuals who hold various IFPS certifications and proctor the job performance portion of Mechanic, Technician, and Connector and Conductor hands-on tests.

Registration deadline is February 15, 2018.

Visit www.ifps.org or call 800-308-6005 to learn more and register.

WWW.FLUIDPOWERJOURNAL.COM • WWW.IFPS.ORG

EVENING ONLINE TRAINING DATES Hydraulic Specialist Mondays and Wednesdays March 5, 7, 12, 14, 19, 21, 2018 6 PM–9 PM EST

ONLINE LIVE HS AND PS CERTIFICATION REVIEW TRAINING Need a Review for the new Hydraulic Specialist or Pneumatic Specialist Certification Tests? Use our Distance Learning collaboration. An Accredited Instructor will engage you in a live online experience with all the energy and expertise of traditional classroom training conducted from the comfort of your own location. There is no travel or lost work time.

IFPS Live Distance Learning takes place in a state-of-the-art training facility for three (3) weeks, equating to twenty (20) hours. Online delivery is offered during the evening hours and is accessed from your own computer with Internet access.

Registration information can be found by visiting www.ifps.org or by calling IFPS headquarters at 800-308-6005.

Registration Deadline is April 5, 2018.

Upcoming Web Seminars

Pneumatic Specialist Tuesdays and Thursdays March 6, 8, 13, 15, 20, 22, 2018 6:00 PM–9:00 PM

OUR NEW LIVE CHAT SYSTEM IS UP & GOING

REGISTER AT WWW.IFPS.ORG FREE TO IFPS MEMBERS NON-MEMBERS PAY A FEE TO REGISTER

Three Part Series TRANSFORMING FLUID POWER: RETHINKING THE WAY WE APPLY FLUID POWER Presented by Dan Helgerson, CFPAI, Fluid Power Journal Technical Editor One of the most common misunderstandings about fluid power is the relationship between flow and pressure. It is hard to convince someone that increasing the pressure in a system will not increase the speed when the technician just finished increasing the pressure and things are going faster. Learn how thinking differently about flow, pressure, and energy can transform the way we apply fluid power.

February 15, 2018 Transforming Fluid Power - Hydraulics March 15, 2018 Transforming Fluid Power - Pneumatics April 19, 2018 Transforming Fluid Power - Applications

WWW.IFPS.ORG • WWW.FLUIDPOWERJOURNAL.COM

Ask a Question, Check Availability or Get a Quote Fast Through Our Live Chat System We now have Live Chat up and going on our company/location websites.

Those being Metaris Hydraulics (www.metaris.com), Attica Hydraulic Exchange (www.ahx1.com), Flint Hydrostatics (www.flinthydrostatics.com), and Hydraulic Repair and Design (www.hydraulicrepair.net). Through our Live Chat system you can easily and quickly ask a question, check availability, check pricing, request a quote and more. This is just one of the new ways we’re making it easier and faster for you to get the info or items you need.

Be sure to go online and give it a try for yourself.

1-800-422-4279 sales@hydraulex.com

www.hydraulex.com CIRCLE 383

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Newly Certified Professionals OCTOBER 2017 ELECTRONICS CONTROL SPECIALIST (ECS) Zach Mcvey, NMC - Nebraska Machinery Co. HYDRAULIC SPECIALIST (HS) Austin Borduin, Sun Hydraulics Corporation Matt Eberhardt, Pioneer Natural Resouces Brett Englert, Erie Press Systems Andrew Gittens, Sun Hydraulics Corporation Frank Kitta, Appalachian Fluid Power, Inc. Nicholas Lee, Sun Hydraulics Corporation Giovanni Martinez, Sun Hydraulics Corporation Daniel Morgan, Sun Hydraulics Corporation Oscar Pena, Sun Hydraulics Corporation Ashwin Shridhar, Applied Industrial Technologies Jesse Thomas, Sun Hydraulics Corporation Brian Urquhart, Parker - Canada

MOBILE HYDRAULIC MECHANIC (MHM) Thomas Browne, Altec Industries, Inc. Joey Caputo, Alabama Power Company Connor Clements, Altec Industries, Inc. Liam Cordray, Verizon Fleet Jaime Del Rio, Altec Industries, Inc. Robert Fliller, Verizon Fleet Christopher Foulkes, Verizon Fleet James Gissendaner, Alabama Power Company Brett Harold, American Electric Power Co. Joshua Hills, Verizon Fleet Dennis Keesling, Altec Industries, Inc. Kyle Knittle, Altec NUECO David Labencki, Alabama Power Company Jeremy McClellan, Alabama Power Company Patrick Mcelhinney Roberto Negrete, El Paso Electric Co. Norman Ng, Verizon Fleet Timothy Pallokat, Verizon Fleet Carey Pate, Alabama Power Company Jesus Paz, El Paso Electric Co. Robert Radwich, Verizon Jesse Shaw, Altec Industries, Inc. George Sicknick, Verizon Fleet

Jason Ward, Altec NUECO Chase Yager, Alabama Power Company PNEUMATIC MECHANIC (PM) Steven Black, The Boeing Company Keith Brown, The Boeing Company James Johnson, The Boeing Company Jeffrey Sanders, The Boeing Company Jeffrey Virgin, The Boeing Company SPECIALIST(S) – Must hold HS and PS Jake Doyle, NMC - Nebraska Machinery Co. Mark Keller, Marmon Highway Technologies SYSTEM DESIGNER (SD) Darin McConechy, Kinetics Drive Solutions ACCREDITED INSTRUCTOR (AI) Thomas Blansett AUTHORIZED JOB PERFORMANCE PROCTOR (AJPP) Thomas Blansett

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WWW.FLUIDPOWERJOURNAL.COM • WWW.IFPS.ORG

NOVEMBER 2017 ELECTRONIC CONTROLS SPECIALIST (ECS) Corey Rasmussen, Altec Industries, Inc. Ben Southern, Altec Industries, Inc. HYDRAULIC SPECIALIST (HS) Myron Barnes, Pace Industries Harrison Division Josh Benoit, Loram Inc. Craig Block, Loram Inc. Jeff Brown, Loram Inc. Mike Bruneau, Alberta News Print Company Matt Canton, Loram Inc. Nathaniel Even, Danfoss Power Solutions (US) Co. Timothy Falcon, Gulf Controls Co., Inc. Luke Gossen, Loram Inc. Terry Jackson II, Pace Industries Harrison Division Vance Johnston, Pace Industries Harrison Division Scott Keith, Sherman & Reilly Kevin Marley, Open Loop Energy, Inc. David Miyamoto, Sun Hydraulics Corporation Nathan Moyer, Loram Inc. Amanda Ridley, Gulf Controls Co., Inc.

Alex Steinbrueck, Loram Inc. Derek Swartz, Loram Inc. Diego Vicentin Keith Wagner, Loram Inc. Nathan Zeroth, Loram Inc. MOBILE HYDRAULIC MECHANIC (MHM) Michael Anderson, Frankfort Plant Board Jeff Asselin, Altec Industries, Inc. Sharif Behrooz, Altec Industries, Inc. Kurtis Bleasdell, Altec Industries, Inc. Shawn Caldwell, Wilson Construction Ryan Clark, American Electric Power Co. John Cooper, Altec Industries, Inc. Dven Daley, Clarksville Department of Electricity Wayne Faulkner, Tacoma Public Utilities Darin Garrison, American Electric Power Co. William Haggard, Altec NUECO Benjamin Haney, Altec Industries, Inc. Darin Harrell, American Electric Power Co. Richard Hassler, Altec Industries, Inc. Tony Holscher, Terex Corporation Anthony Hughes, Altec Industries, Inc. Cameron Humphrey, Terex Corporation Larrico Jamison, Altec Industries, Inc. Keith Jones, Terex Corporation Corey Latimer, Altec Industries, Inc. Joseph Loudon, Altec Industries, Inc. Cody Lyons, American Electric Power Co. Creig Maifield, Terex Utilities, Inc.

Paul Mcdermott, Verizon Michael McMahon, Alabama Power Company Benjamin Nelson, Altec Industries, Inc. Brice Nethers, American Electric Power Co. Brian Noel, American Electric Power Co. Charles Pearman, Altec Industries, Inc. William Peasley, Altec Industries, Inc. Kyle Prince, Altec Industries, Inc. Jeremy Raines, J.H. Fletcher Company Lorenzo Resendiz, Altec Industries, Inc. John Riff, Altec Industries, Inc. Sean Simpson Andrew Smallwood, American Electric Power Co. Shane Smith, American Electric Power Co. Randy Staves, Eau Claire Energy Corporation Carl Stickney, Terex Corporation Sheldon Strand, Wilson Construction Manuel Tapia, Altec Industries, Inc. Todd Wilson, J.H. Fletcher Company PNEUMATIC SPECIALIST (PS) John Martin, TSI Solutions Inc. Christian Schatteman, Progressive Hydraulics, Inc. SPECIALIST(S) – Must hold HS and PS Timothy Fleming, Hyspeco SYSTEM DESIGNER (SD) Walter Fetzer, Hydrodiagnostics, LLC Ravneet Singh, HyPower Systems, Inc.

ELECTRIC Cylinders, Linear Slides, & Now Grippers

!

NEW

P.O. Box 9070 • Fort Wayne, IN 46899 USA

With Your Motor, Your Way! Series EGRR Electric High Capacity Grippers Series ESG Electric Gantry Slides

Series ECVA/ECVR Rail Screw Electric Cylinders

• Electrically-powered units built on the foundation of PHD’s proven pneumatic product technology • Electromechanical actuators offer flexibility to use the motor of your choice • High thrust and speed capacities

Series ESFX Modular Electric Slides

USDA Certified for CIP YOUR MOTOR

Series ESK/ESL Electric Thruster Slides

With PHD Plus, you can use the motor of your choice.

Series ECP IP69K Cylinders

Your Motor, Your Way!

Call 800-624-8511 or visit phdplus.phdinc.com/plusad

CIRCLE 386

WWW.IFPS.ORG • WWW.FLUIDPOWERJOURNAL.COM

JANUARY/FEBRUARY 2018

13

Certification Testing Locations Individuals wishing to take any IFPS written certification tests are able to select from convenient locations across the United States and Canada. The IFPS is able to offer these locations through its affiliation with The Consortium of College Testing Centers (CCTC) provided by National College Testing Association (NCTA).

To register for a written certification test: 1. Fill out an IFPS certification test application including your desired location by visiting www.ifps.org.

2. Submit your application with payment to IFPS headquarters.

3. Upon receipt of your application, you will be e-mailed instructions.

TESTING DATES FOR ALL LOCATIONS: January 2018 Tuesday, 1/2 • Thursday, 1/18 February 2018 Tuesday, 2/6 • Thursday, 2/22 March 2018 Tuesday, 3/6 • Thursday, 3/22 April 2018 Tuesday, 4/3 • Thursday, 4/19 May 2018 Tuesday, 5/1 • Thursday, 5/17 June 2018 Tuesday, 6/5 • Thursday, 6/21 July 2018 Tuesday, 7/3 • Thursday, 7/19 August 2018 Tuesday, 8/7 • Thursday, 8/23

14

JANUARY/FEBRUARY 2018

ALASKA Anchorage, AK Fairbanks, AK ALABAMA Auburn, AL Birmingham, AL Huntsville, AL Jacksonville, AL Mobile, AL Montgomery, AL Normal, AL Tuscaloosa, AL ARIZONA Flagstaff, AZ Glendale, AZ Mesa, AZ Phoenix, AZ Prescott, AZ Safford, AZ Scottsdale, AZ Sierra Vista, AZ Tempe, AZ Thatcher, AZ Tucson, AZ Yuma, AZ ARKANSAS Bentonville, AR Hot Springs, AR Little Rock, AR CALIFORNIA Aptos, CA Arcata, CA Bakersfield, CA Encinitas, CA Fresno, CA Irvine, CA Marysville, CA Riverside, CA Salinas, CA San Diego, CA San Jose, CA San Luis Obispo, CA Santa Ana, CA Santa Maria, CA Santa Rosa, CA Yucaipa, CA COLORAD0 Aurora, CO Boulder, CO Colorado Springs, CO Denver, CO Durango, CO Ft. Collins, CO Greeley, CO Lakewood, CO Littleton, CO Pueblo, CO DELAWARE Dover, DE Georgetown, DE FLORIDA Avon Park, FL Boca Raton, FL Cocoa, FL Davie, FL Daytona Beach, FL Fort Pierce, FL Ft. Myers, FL Gainesville, FL Miami Gardens, FL New Port Richey, FL

Orlando, FL Panama City, FL Pembroke Pines, FL Pensacola, FL Plant City, FL Sanford, FL Tampa, FL Winter Haven, FL GEORGIA Albany, GA Athens, GA Atlanta, GA Carrollton, GA Dahlonega, GA Dublin, GA Dunwoody, GA Lawrenceville, GA Morrow, GA Oakwood, GA Statesboro, GA Tifton, GA Valdosta, GA HAWAII Laie, HI IDAHO Boise, ID Coeur d ‘Alene, ID Idaho Falls, ID Lewiston, ID Moscow, ID Nampa, ID Rexburg, ID Twin Falls, ID ILLINOIS Carbondale, IL Carterville, IL Champaign, IL Decatur, IL DeKalb, IL Edwardsville, IL Elk Grove, IL Glen Ellyn, IL Joliet, IL Malta, IL Peoria, IL Springfield, IL INDIANA Bloomington, IN Evansville, IN Fort Wayne, IN Gary, IN Indianapolis, IN Kokomo, IN Lafayette, IN Lawrenceburg, IN Madison, IN Muncie, IN New Albany, IN Sellersburg, IN South Bend, IN Terre Haute, IN IOWA Ames, IA Cedar Rapids, IA Iowa City, IA Ottumwa, IA Sioux City, IA Waterloo, IA KANSAS Lawrence, KS Manhattan, KS Wichita, KS

KENTUCKY Bowling Green, KY Covington, KY Highland Heights, KY Louisville, KY Morehead, KY LOUISIANA Bossier City, LA Monroe, LA Natchitoches, LA New Orleans, LA Thibodaux, LA MARYLAND Arnold, MD Bel Air, MD Frederick, MD Hagerstown, MD La Plata, MD Westminster, MD Wye Mills, MD MASSACHUSETTS Boston, MA Bridgewater, MA Danvers, MA Haverhill, MA Holyoke, MA MICHIGAN Ann Arbor, MI Big Rapids, MI Dearborn, MI Dowagiac, MI East Lansing, MI Flint, MI Grand Rapids, MI Kalamazoo, MI Lansing, MI Livonia, MI Mount Pleasant, MI Sault Ste. Marie, MI Troy, MI University Center, MI Warren, MI MINNESOTA Brooklyn Park, MN Eden Prairie, MN Granite Falls, MN Mankato, MN Morris, MN MISSISSIPPI Goodman, MS Mississippi State, MS Raymond, MS University, MS MISSOURI Cape Girardeau, MO Cottleville, MO Joplin, MO Kirksville, MO Park Hills, MO Poplar Bluff, MO Rolla, MO Sedalia, MO St. Joseph, MO St. Louis, MO Warrensburg, MO MONTANA Bozeman, MT Missoula, MT

NEBRASKA Bellevue, NE Lincoln, NE North Platte, NE Omaha, NE

Gresham, OR Medford, OR Oregon City, OR Portland, OR White City, OR

NEVADA Henderson, NV North Las Vegas, NV Winnemucca, NV

PENNSYLVANIA Bethlehem, PA Bloomsburg, PA Blue Bell, PA Gettysburg, PA Harrisburg, PA Lancaster, PA Newtown, PA Philadelphia, PA Pittsburgh, PA York, PA

NEW JERSEY Branchburg, NJ Lincroft, NJ Sewell, NJ Toms River, NJ West Windsor, NJ NEW MEXICO Albuquerque, NM Clovis, NM Farmington, NM Portales, NM Santa Fe, NM NEW YORK Brooklyn, NY Buffalo, NY Garden City, NY Middletown, NY New York, NY Syracuse, NY NORTH CAROLINA Apex, NC Asheville, NC Boone, NC Charlotte, NC Durham, NC Fayetteville, NC Greenville, NC Jamestown, NC Misenheimer, NC Pembroke, NC Raleigh, NC Wilmington, NC NORTH DAKOTA Bismarck, ND Fargo, ND OHIO Akron, OH Cincinnati, OH Columbus, OH Fairfield, OH Findlay, OH Kirtland, OH Lima, OH Maumee, OH Newark, OH Rio Grande, OH Toledo, OH Youngstown, OH OKLAHOMA Altus, OK Bethany, OK Edmond, OK Norman, OK Oklahoma City, OK Stillwater, OK Tonkawa, OK Tulsa, OK OREGON Bend, OR Coos Bay, OR Eugene, OR

SOUTH CAROLINA Beaufort, SC Charleston, SC Columbia, SC Conway, SC Greenwood, SC Orangeburg, SC Rock Hill, SC Spartanburg, SC TENNESSE Blountville, TN Clarksville, TN Collegedale, TN Gallatin, TN Johnson City, TN Memphis, TN Morristown, TN Murfreesboro, TN Nashville, TN TEXAS Abilene, TX Arlington, TX Austin, TX Beaumont, TX Brownsville, TX Commerce, TX Corpus Christi, TX Dallas, TX Denison, TX El Paso, TX Houston, TX Laredo, TX Lubbock, TX Lufkin, TX Mesquite, TX Weatherford, TX Wichita Falls, TX UTAH Cedar City, UT Kaysville, UT Logan, UT Ogden, UT Orem, UT Salt Lake City, UT VIRGINIA Daleville, VA Lynchburg, VA Norfolk, VA Roanoke, VA Virginia Beach, VA WASHINGTON Bellingham, WA Bremerton, WA Ellensburg, WA Olympia, WA

Seattle, WA Shoreline, WA Spokane, WA WISCONSIN Fond du Lac, WI La Crosse, WI Milwaukee, WI WYOMING Casper, WY Laramie, WY Torrington, WY ASIA Kindom of Bahrain AUSTRALIA Rockingham, WA CANADA Calgary, AB Edmonton, AB Fort McMurray, AB Lethbridge, AB Lloydminster, AB Olds, AB Red Deer, AB Abbotsford, BC Burnaby, BC Castlegar, BC Delta, BC Kamloops, BC Nanaimo, BC Prince George, BC Richmond, BC Surrey, BC Vancouver, BC Victoria, BC Brandon, MB Winnipeg, MB Bathurst, NB Moncton, NB St. John’s, NL Halifax, NS Brockville, ON Hamilton, ON Mississauga, ON Niagara-on-theLake, ON North Bay, ON North York, ON Ottawa, ON Toronto, ON Welland, ON Windsor, ON Côte Saint-Luc, QB Montrea, QB Montreal, QB Melfort, SK Moose Jaw, SK Nipawin, SK Prince Albert, SK Saskatoon, SK Whitehorse, YT ENGLAND London, ENG NEW ZEALAND Taradale, NZ UNITED KINGDOM Elgin, UK

WWW.FLUIDPOWERJOURNAL.COM • WWW.IFPS.ORG

Certification Review Training Dates ELECTRONIC CONTROLS SPECIALIST (ECS) CERTIFICATION REVIEW

Location

Review Dates

Written Test

Contact

Fairfield, OH

October 22-25, 2018

October 25, 2018

register@cfc-solar.com

HYDRAULIC SPECIALIST (HS) CERTIFICATION REVIEW

CFPAI Certified Fluid Power Accredited Instructor CFPAJPP Certified Fluid Power Authorized Job Performance Proctor

Location

Review Dates

Written Test

Contact

Milwaukee, WI

March 26-28, 2018

March 29, 2018

khalil@msoe.edu

CFPAJPPCC Certified Fluid Power Authorized Job Performance Proctor Connector & Conductor

Fairfield, OH

April 9-12, 2018

April 12, 2018

register@cfc-solar.com

Bethlehem, PA

April 11-13, 2018

April 13, 2018

smbogush@amthydraulics.com

CFPE Certified Fluid Power Engineer

Maumee, OH

April 23-26, 2018

April 27, 2018

hydraulicstraining@eaton.com

Eden Prairie, MN

August 6-9, 2018

August 10, 2018

hydraulicstraining@eaton.com

Fairfield, OH

September 4-7, 2018

September 7, 2018

register@cfc-solar.com

Bethlehem, PA

November14-16, 2018

November 16, 2018

smbogush@amthydraulics.com

PNEUMATIC SPECIALIST (PS) CERTIFICATION REVIEW

Location

Review Dates

Written Test

Contact

Fairfield, OH

June 25-27, 2018

June 27, 2018

register@cfc-solar.com

Fairfield, OH

December 12-14, 2018

December 14, 2018

register@cfc-solar.com

CONNECTOR & CONDUCTOR (CC) REVIEW W/ JOB PERFORMANCE TEST

Location

Review Dates

Test Date (Written & JP)

Contact

Fairfield, OH

February 12-14, 2018

February 14, 2018

register@cfc-solar.com

Fairfield, OH

June 18-20, 2018

June 20, 2018

register@cfc-solar.com

Maumee, OH

August 8-9, 2018

August 10, 2018

hydraulicstraining@eaton.com

Fairfield, OH

November 26-28, 2018

November 28, 2018

register@cfc-solar.com

INDUSTRIAL HYDRAULIC MECHANIC (IHM) CERTIFICATION REVIEW

Location

Review Dates

Test Date (Written & JP)

Contact

Bethlehem, PA

June 12-15, 2018

June 15, 2018

smbogush@amthydraulics.com

MOBILE HYDRAULIC MECHANIC (MHM) REVIEW W/JOB PERFORMANCE TEST

AVAILABLE IFPS CERTIFICATIONS

CFPS Certified Fluid Power Specialist (Must Obtain CFPHS, CFPPS) CFPHS Certified Fluid Power Hydraulic Specialist CFPPS Certified Fluid Power Pneumatic Specialist CFPECS Certified Fluid Power Electronic Controls Specialist CFPMT Certified Fluid Power Master Technician (Must Obtain CFPIHT, CFPMHT, & CFPPT) CFPIHT Certified Fluid Power Industrial Hydraulic Technician CFPMHT Certified Fluid Power Mobile Hydraulic Technician CFPPT Certified Fluid Power Pneumatic Technician CFPMM Certified Fluid Power Master Mechanic (Must Obtain CFPIHM, CFPMHM, & CFPPM) CFPIHM Certified Fluid Power Industrial Hydraulic Mechanic CFPMHM Certified Fluid Power Mobile Hydraulic Mechanic

Location

Review Dates

Test Date (Written & JP)

Contact

Fairfield, OH

March 26-29, 2018

March 28 & 29, 2018

register@cfc-solar.com

Fairfield, OH

September 10-13, 2018

September 12 & 13, 2018

register@cfc-solar.com

CFPPM Certified Fluid Power Pneumatic Mechanic

register@cfc-solar.com

CFPMIH Certified Fluid Power Master of Industrial Hydraulics (Must Obtain CFPIHM, CFPIHT, & CFPCC)

PNEUMATIC MECHANIC (PM) REVIEW TRAINING W/JOB PERFORMANCE TEST

Fairfield, OH

Call for dates

Phone: 513-874-3225

INDUSTRIAL HYDRAULIC TECHNICIAN (IHT) REVIEW TRAINING W/JOB PERFORMANCE TEST

Fairfield, OH

Call for dates

Phone: 513-874-3225

register@cfc-solar.com

MOBILE HYDRAULIC TECHNICIAN (MHT) REVIEW TRAINING W/JOB PERFORMANCE TEST

Fairfield, OH

Call for dates

Phone: 513-874-3225

register@cfc-solar.com

PNEUMATIC TECHNICIAN (PT) REVIEW TRAINING W/JOB PERFORMANCE TEST

Fairfield, OH

Call for dates

Phone: 513-874-3225

register@cfc-solar.com

JOB PERFORMANCE ONLINE REVIEW

CFC Industrial Training offers online JP Reviews which include stations 1-6 of the IFPS mechanic and technician job performance tests. Members may e-mail askus@ifps.org for a 20% coupon code off the list price or get the code in our Members’ Only area for the entire IFPS Job Performance Review; test not included. Register and purchase through CFC Industrial Training.

WWW.IFPS.ORG • WWW.FLUIDPOWERJOURNAL.COM

CFPMMH Certified Fluid Power Master of Mobile Hydraulics (Must Obtain CFPMHM, CFPMHT, & CFPCC) CFPMIP Certified Fluid Power Master of Industrial Pneumatics (Must Obtain CFPPM, CFPPT, & CFPCC) CFPCC Certified Fluid Power Connector & Conductor CFPSD Fluid Power System Designer CFPMEC (In Development) Mobile Electronic Controls CFPIEC (In Development) Industrial Electronic Controls

JANUARY/FEBRUARY 2018

15

CONTACT AVENTICS Corporation www.aventics.com/us

SHOT

BLASTING FOR HARD SURFACES

SHORT LINES SAVE ENERGY

S

hot blasting better protects powertrain components from damage, while increasing their cyclic loading capacity. Automobile manufacturers use shot blasting for metallic components, such as engine, chassis, and transmission parts that are subjected to high levels of stress in later use. For example, during the shot blasting process of shafts and pinions in the automotive industry, small abrasive blasting objects are projected against the surface to be treated at high speeds, using compressed air. This process generates a residual compressive stress, increasing the permanent strength of the material by up to 60 percent.

16

At the same time, the treatment enhances the material’s bending strength and corrosion resistance and expands its surface (such expansion is important primarily for bonding components).

JANUARY/FEBRUARY 2018

Pneumatics plays a major role in the process, and, according to Martin Stolte, CTO at V+M Systems GmbH, a company specializing in shot-blasting systems, shorter air lines can provide improved system performance that saves energy. One method of shortening air lines in the industrial robots used for shot blasting is to have the valve positioned near the load.

When an automotive manufacturer customer added the AVENTICS AV05 series to its list of approved components, the engineers at V+M Systems were able to integrate pneumatic control of the robot arm directly at the load due to the compact design and the light weight of the valve system from AVENTICS.

Unlike standard valves with a rectangular base plate and mounted valve, in the AVENTICS Advanced Valve (AV) family, the spool is arranged diagonally in the valve housing, reducing the volume of the valve on the base plate by approximately 45 percent. The valves in the AV series are also nearly 40 percent lighter because of high-performance polymers and a specially developed injection molding method.

AUTOMOTIVE INDUSTRY RELIES ON EFFICIENT SYSTEMS

Mounting the valve directly on the moving robot arm valve had no effect on the robot dimensioning, and, according to Stolte, this positioning resulted in reduced assembly time and costs when piping, lower compressed air consumption for users (thanks to a reduction in dead volumes), and an overall increase in the energy efficiency of the shot-blasting system.

The integrated fieldbus connection and the input and output modules from the AVENTICS Advanced Electronic System (AES) can process analog and digital signals. As a result, V+M Systems can incorporate machine diagnostics via the valve system by reading in pressure switches via the integrated digital input module and transferring the machine status to the controller via the fieldbus.

WWW.FLUIDPOWERJOURNAL.COM • WWW.IFPS.ORG

Stops Leaking

FlangeLock™

INDUSTRY NEWS

Anchor Fluid Power Acquires Maxbar, Inc.

HYDRAULIC LINES

Anchor Fluid Power, a supplier of flange and inline valve components for the fluid power industry, announced today it has acquired Maxbar, Inc., located in Houston, Texas. Maxbar is the largest US distributor of Walther-Präzision products and specializes in quick connect couplings for a variety of industries including aerospace, subsea, oil & gas and automotive.

Maxbar will continue operations at their 11319 Tanner Road facility. The location is on the northwest side of Houston, minutes from U.S. 290 and the Sam Houston Tollway.

For more information, visit www.anchorfluidpower.com or www.maxbar.com

SAVE TIME SAVE MONEY SAVE LABOR SAVE OIL For more information contact Mike Pearl at 914.980.8890 or email: mike@flangelock.com

• • • • • • • • • •

No tools required No expensive hardware needed No more rags stuffed into hoses No more messy plastic caps The ultimate contamination control tool One hand installation Eliminate hydraulic oil spills & clean up Quick installation & ease of usage Safe for personnel & environment Industry acclaimed

www.flangelock.com

100% This product is Patented, other Patents pending.

CIRCLE 387

PIRTEK EXPANDS SOUTHEAST PRESENCE

The new PIRTEK location is its first hydraulic hose service location in South Carolina. Jason Barrs opened his franchise, PIRTEK Columbia, under the company’s Tier 2 model, which allows a franchisee to keep inventory in a small warehouse or storage facility and to lease two vehicles at a lower point of entry. Tier 2 franchisees are expected to grow into a fully staffed and outfitted Service & Supply Center within three years.

Each new Mobile Service Vehicle in the fleet widens the franchisee’s exclusive territory. www.pirtekusa.com

JANUARY/FEBRUARY 2018

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CIRCLE 388

PRODUCT SPOTLIGHT

CYLINDERS, SLIDES, & VACUUM CUPS Special Ad Section

Go ahead. Push me.

Vac Cubes Multi Venturi Vacuum Pumps With over 30 years of proven results Vac Cubes and our multi stage venturi vacuum pumps are a great fit for your vacuum application. They are designed to provide higher vacuum flows with less air consumption. Multiple models available with maximum vacuum up to 27”hg and vacuum flows up to 25CFM and the ability to manifold together.

Ordinary heavy duty not heavy enough? Choose Yates Heavy-Duty Mill Cylinders for: • Induction-Hardened, Chrome-Plated Rods • Heavy Wall Tubing • Replaceable Glands & Retainer Rings • High-Load Piston Design Think indestructible and call Yates. www.yatesind.com

Corporate

586.778.7680

Alabama

256.351.8081

Georgia

info@vac-cube.com 727.944.3337 www.vac-cube.com

678.355.2240 CIRCLE 419

CIRCLE 418

More Stroke In Less Space Superior Load Bearing Low Profile Grippers The industry’s premier family of low profile actuators just got bigger!

Introducing a line of 18 newly patented AGLP Grippers, AGI’s unique internal design allows for the most compact actuator-to-stroke ratio in its field, [twice that of any competition].

YOULI Hydraulic Directional Control Valves Direct Acting Electric Solenoids...now available: Youli directional control valves, rated to 4600psi, monoblock or sectional styles, are now available from stock in Corpus Christi, with electric direct acting solenoids on the MB-4 series, rated to 10GPM. Pneumatic operators are also available on all Youli valves, and also kept in stock.

Youli quality is based on 25 years of industrial hydraulic valve manufacturing for the machine tool business in Taiwan. A quality product line with a major commitment to inventory in Corpus Christi, Texas, and offered at competitive prices is making our reputation grow.

Youli-America, a Division of RanFam, LLC

Models available for automotive, food, medical and packaging industries.

Manufacturers of Sophisticated Pneumatic Automation Products

Proudly sold through distribution. Please call to be referred.

Contact the company at 1.888.330.8041 or email to service@youli-america.com View basic specifications at www.youli-america.com CIRCLE 421

To place an order, email info@agi-automation.com For detailed product specifications and CAD drawings, visit www.agi-automation.com CIRCLE 420

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JANUARY/FEBRUARY 2018

WWW.FLUIDPOWERJOURNAL.COM • WWW.IFPS.ORG

SC Hydraulics Newest Addition L6-40 High Volume Pump • • • • •

Pressures up to 5,000 psi with 125 psi air drive Flows over 4 GPM at no pressure and 3 GPM at 1,000 psi. with 140 scfm air drive All wetted parts stainless steel Compatible with most fluids Air operated No electricity needed • Dimensionally interchangeable with most competitive model pumps

SC Hydraulic Engineering Corporation

Protection for All Things Hydraulic, Pneumatic, and Fluid Power

714.257.4800 • info@schydraulic.com • www.SCHydraulic.com CIRCLE 423

MOCAP manufactures a full line of protective closures including a variety of sizes and styles of plastic Caps and Plugs for Metric, NPT, BSP, JIC and SAE Threaded Connections, Ports and Fittings. These are in addition to MOCAP’s already extensive lines of low-cost Caps, Plugs, Grips, Netting, Tubing and Tapes for Product Protection, Finishing and Masking. All of our stocked items are ready for immediate shipment and available in Box, Mini-Pack and Micro-Pack quantities.

Having trouble sourcing ISO cylinders? Call Aignep USA! In our state of the art manufacturing facility in Fairview, TN, Aignep USA manufactures a comprehensive range of ISO cylinder styles, bores, strokes, materials and mounting accessories. We ship standard stroke cylinders within 24 hours and have the capability of producing non-standard units in a matter of days, not weeks.

www.mocap.com • sales@mocap.com 800.633.6775 • 314.543.4000

Call today to get a quote and enjoy same day shipping!

www.aignepusa.com

CIRCLE 422

615.771.6650

CIRCLE 424

Compact Pressure Transmitters Keller compact pressure transmitters incorporate a modular design that allows a variety of pressure and electrical connections for maximum versatility for integration into new and existing hydraulic systems.

Each instrument is thermally compensated to provide excellent Total Error Band accuracy over a wide compensated temperature range, can be scaled to pressure ranges from 0 - 30 PSI up to 0 - 15,000 PSI, and are available in industry-standard analog or digital outputs.

Now Available!

Full MTRs and Lot Traceability MAIN Manufacturing Products, Inc. now offers full MTRs and lot traceability on all common flanges. Carbon, stainless, and copper-nickel alloy are available. If not part of our 7000+ in-stock products, MAIN can manufacture and ship quickly. 4-5 days is common from our US facility.

Newport News, VA 23606 877.253.5537 www.kelleramerica.com sales@kelleramerica.com CIRCLE 426

MAIN Manufacturing Products, Inc. Phone: 800.521.7918 E-mail: info@mainmfg.com CIRCLE 425

WWW.IFPS.ORG • WWW.FLUIDPOWERJOURNAL.COM

JANUARY/FEBRUARY 2018

19

PRODUCT SPOTLIGHT

CYLINDERS, SLIDES, & VACUUM CUPS Special Ad Section

Stops Leaking Hydraulic Lines New HJS24 Dual Axis Controller We are proud to introduce the new HJS24 dual axis controller used as a friction or hold in position for throttle type applications. The construction is similar to our other products with heavy duty cast metal housing, but what makes it very special is the extremely rugged friction hold assembly. The shaft is a large 12mm diameter capable of running multiple wires down and utilizing virtually all of our multi-function grip handles. As always, our electronics are designed for IP67 and protected from the elements as well as debris. Examples of applications include, but not limited to, rollers, aggregation, combines, and sprayers.

Save Time • Save Money • Save Labor • Save Oil • No tools required, one hand installation • No expensive hardware needed • No more rags stuffed into hoses • No more messy plastic caps • The ultimate contamination control tool • Eliminate hydraulic oil spills & clean up • Quick installation & ease of usage • Safe for personnel & environment • Industry acclaimed

FlangeLock™ 203.929.8431 www.oemcontrols.com CIRCLE 427

Contact Mike Pearl at 914.980.8890 or email mike@flangelock.com • www.flangelock.com CIRCLE 428

Levelux™ Illuminated Liquid Level Gages Stainless Steel Flange Type Ball Valves Inserta® Products Flange Type, 2-Port Ball Valves, Stainless Steel, will be available to ship from stock beginning in early 2018.

Internal and external metallic components are stainless steel for use in corrosive environments, or with fluid media that would typically be incompatible with the standard materials of the standard Inserta® IBF Flange 2-Port Ball Valves.

These valves are designed for high pressure service with a 4:1 safety factor to burst. Fastener clearance holes are compatible with either UN or metric fasteners.

Liquid level gages (left image) allow viewing of the contents of a hydraulic oil tank. These tanks are often located in partially obscured or dark areas.Levelux heightens visibility and draws attention to the liquid level with a motion activated LED light. This patent-pending design is available exclusively from Oil-Rite and is made in the USA.

Levelux™ Illuminated Reservoirs and Oilers Reservoirs and oilers (right image) require monitoring to avoid depleting the contents. They are often located out of the direct line of sight or in dark areas. Levelux heightens visibility and draws attention to the liquid level with a motion activated LED light. This patent-pending design is available exclusively from Oil-Rite and is made in the USA.

Inserta® Products

Blue Bell, PA • www.inserta.com • 215.643.0192 CIRCLE 429

20

JANUARY/FEBRUARY 2018

920.682.6173 • sales@oilrite.com • www.oilrite.com CIRCLE 430

WWW.FLUIDPOWERJOURNAL.COM • WWW.IFPS.ORG

NEW! From Flow Ezy Filters….

The Oil Mist Separator!

Do you have an application that produces an oil mist as the reservoir breathes? Are you tired of paying BIG money for something so simple that can take care of the problem? This is brand new from Flow Ezy and it simply mounts on top of the tank between the tank breather and the tank (as shown with one of Flow Ezy’s tank breathers).

Tried and tested. The Oil Mist Separator will keep the oil mist in the pipe and allow it go back into the tank and not into the environment.

Simple, low cost, better for the environment, effective!

Flow Ezy Filters, Inc.

Phone: 800.237.1165 • Fax: 800.252.1730 Email: flowezy@flowezyfilters.com Website: www.flowezyfilters.com CIRCLE 433

OEM Linear Slides & Air Cylinders

Introducing—9S Series Investment Cast Swivels The "9S" Series swivels represent one of the most complete range of sizes and configurations available to industry. This series has been redesigned to incorporate a one-piece barrel arrangement, thus eliminating the need for braze joints. These swivels are pressure balanced with operating pressures up to 5,000 psi. All configurations are designed with a 4:1 Safety Factor and include RoHS compliant zinc plating.

When built-to-order actuators are beyond the scope of your automation needs, PHD Optimax® provides prefabricated solutions that are economical and efficient, allowing you to integrate reliable components that get the job done. Built on the foundation of quality you’ve come to expect from PHD, these actuators meet machine builders' stringent performance requirements at a more competitive price.

PHD, Inc.

800.624.8511 • phdinfo@phdinc.com www.phdinc.com/optimax

P.O. Box 6479 • Fort Worth, TX 76115 V. 817/923-1965 • www.hydraulicsinc.com

CIRCLE 431

Double Pumps • “AA” Flange, 1DG Series • “A” Flange, 2DG Series • “B” Flange, 3DG Series New from Honor Gear Pumps. Now available from Corpus Christi inventory. "B" flange group 3, and "A" flange group 2, and "AA" flange group 1 double pumps are now available from the factory warehouse.

Standard group 3 models come with 7/8-13 tooth spline shaft and are available from 52cc on the front pump down to as small as 5cc on the rear.

Standard group 2 models come with either the 5/8-9 tooth spline or 5/8" keyed shaft, in displacements from 22cc on the front to 5cc on the rear.

Standard group 1 models come with a 1/2" keyed shaft, in displacements from 9cc on the front to 1cc on the rear.

Subject to center section displacements being 5cc, or 7cc, or 9cc, or 11cc, triple pumps are also available in the group 2 size pump frame.

Aluminum bodies with cast iron covers are standard heavy duty construction for all Honor single and double gear pumps.

CIRCLE 434

CTI-TW Thumbwheel The CTI-TW Hall Effect Thumbwheel utilizes sealed Non-contacting Hall effect sensors in a polyamide nylon housing. This small and ruggedized thumbwheel is ideally suited for tight clearances in compact control grips and panels. Resistant to vibration, shock, and extremes of temperatures typically found in mobile machine environments. The CTI-TW Hall Effect Thumbwheel offers maintenancefree, reliable long-term use. This thumbwheel is available in three mechanical configurations: Spring Return to Center, Spring Return to Side and Friction Hold. These configurations are available in three electrical output styles: 0.5 to 4.5Vdc, 1.0 to 5.0 Vdc and 0.0-5.0 Vdc signal outputs.

Cyber-Tech, Inc.

1.800.621.8754 www.cyber-tech.net CIRCLE 435

Honor Gear Pumps Corp.

Proudly sold through distribution. Please call to be referred.

222 S. Navigation Blvd. • Corpus Christi, TX 78405 Toll free: 800.984.9727 • Local: 713.984.8144 • Fax: 713.461.9631 Email: service@honorpumps.com • Web: www.honorpumps.com CIRCLE 432

WWW.IFPS.ORG • WWW.FLUIDPOWERJOURNAL.COM

JANUARY/FEBRUARY 2018

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PRODUCT SPOTLIGHT

Special Ad Section

Efficient Slip-In Check Valves Support Axial and 90 Degree Flow Paths

Replace that BIG Reservoir 50-Gallon Strength in a 5-Gallon Bucket!

The QUBE is an All-In-One Hydraulic Supply and Cooling System, utilizing the Harrison Exclusive Velocity Nozzle Design.

HYDRA-QUBE

It takes an enormous expense to support an inefficient check valve.

A larger than necessary prime mover, heat exchanger capacity, and the ongoing expense (over the life of a machine) of pressurizing hydraulic fluid well beyond what is necessary to do useful work are a few of the realities of high pressure drop.

Inserta® IGS (steel) Check Valves, Guided Disc, Slip-In Type, have pressure drop profiles lower than typical thread-in cartridge check valves, and may be considered in both axial and ninety degree flow path applications. Ninety degree flow path cavity examples are documented in the product literature, and may be found on the company website.

No specialized cavity form tooling is required.

The guided disc design (patent pending) affords improved longevity in applications prone to turbulence, as well as in higher cycling and higher flow applications.

Your Turn Key Solution for Hydraulic Oil Management.

• 10x less hydraulic fluid • 90% lighter • Pop-Up Filter Dirt Alarm • Top access Oil Fill & Oil Filter • 100% rated duty cycle • 12 VDC fan instead of hydraulic fan www.harrisonhydragen.com sales@harrisonhydragen.org 800.723.3334

Inserta® Products

Quality, Service & Dependability…Guaranteed since 1969

Blue Bell, PA • www.inserta.com • 215.643.0192

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CIRCLE 437

D03, D05, D07, D08, D10 Valves and Circuit Stack Modulars

FM Approved Thermal Shut Down Device In the event of a fire the FireChek® blocks the air flow and exhausts the downstream air line. FireChek® can be used on actuators, pilot valves or any pneumatic device that needs to exhaust in the event of a fire. FireChek is field testable and resettable; available in 135, 150 and 165° actuation temperatures.

assuredautomation.com/firechek/index.php CIRCLE 438

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Power Valve U.S.A. represents, as factory warehouse and sales office, a Taiwan manufacturer of D03, D05, D07, D08, and D10 valves, and modular circuit stack valves. With inventory in the Corpus Christi warehouse, all products are competitively priced, and machine tool quality. In fact the parent company, Tai Huei Oil Industry Co., Ltd. has been selling valves for over 25 years to the machine tool industry in Taiwan. All standard AC and DC voltages are available, and all standard spool configurations are in stock. Special spools are available.

Pressures to 5000psi and flows from 16GPM (D03) to 211GPM (D10) are standard. With inventory on the shelf and very competitive pricing, we invite your inquiry.

Power Valve U.S.A.

CONTACT US

to showcase your products and services in the Product Spotlight.

This special section is featured in the six bimonthly issues and is a high-profile area offering product-specific advertising. Visit our website, www. fluidpowerjournal. com for more information or to view our media guide.

Proudly sold through distribution.

Please call to be referred.

222 S. Navigation Blvd. • Corpus Christi, TX 78405 Contact the company at 713.869.1064 or e-mail to service@powervalveusa.com.

View basic specifications at www.powervalveusa.com CIRCLE 439

WWW.FLUIDPOWERJOURNAL.COM • WWW.IFPS.ORG

INDUSTRY NEWS

SFC KOENIG® Increases Plug Production In North America SFC KOENIG®, a global supplier of sealing and flow control components, has added manufacturing equipment for KOENIG EXPANDER® pull-style plugs in its North Haven, Connecticut facility. The new equipment was custom built for SFC KOENIG and utilizes designs already in operation in the company’s Swiss production facility. North American-based production will include SK and LK series KOENIG EXPANDERS, as well as custom expander plugs developed for customer-specific requirements. www.sfckoenig.com

DISTRIBUTION PARTNERSHIP: RG GROUP WITH DYNEX HIGH PRESSURE HYDRAULICS RG Group, headquartered in York, PA, announced the agreement with manufacturer Dynex to distribute pumps, valves, motors and power units to the Mid-Atlantic market.

Dynex products include high-pressure piston pumps, high-pressure directional and pressure control valves, heavy-duty piston motors and electrohydraulic actuators for remote control.

They also build standard hydraulic power units or specialized systems. www.rg-group.com

Echo Engineering Acquires Ammex Plastics Echo Engineering and Production Supplies, Inc. has announced the acquisition of Ammex Plastics, a full-service plastic components manufacturer, based in Monroe, Mich., near Detroit, and primarily serving the automotive industry. Echo Engineering, headquartered in Indianapolis, provides diverse industries with both custom and catalog parts.

Moving forward, Ammex Plastics will operate under Echo’s umbrella, as Echo Engineering and Production Supplies, Inc. DBA Ammex Plastics. www.echosupply.com

WWW.IFPS.ORG • WWW.FLUIDPOWERJOURNAL.COM

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CIRCLE 389

NEXT GENERATION HYDRAULIC FLUIDS: High-Performance & Environmental Safety

NEXT GENERATION OF HYDRAULIC FLUIDS

By Josh Green, EnBio Industries

Selecting the right hydraulic fluid for an application is not always an easy task for a hydraulic system operator. When the application is ecologically sensitive, the selection becomes even more difficult, especially since there is no uniform set of tests that clearly indicate the fluid’s performance or the ecological effects if the fluid spills or leaks. In addition, there is much misinformation from companies and organizations pushing their own agendas. This often leaves hydraulic system operators to choose between sacrificing the environment for performance, or sacrificing performance for the environment.1

REGULATIONS

US Environmental Protection Agency (EPA) regulations dictate rules for fluid release, but the language in the regulations is still vague about what separates a real environmentally acceptable lubricant (EAL) and fluids that are just “good enough.” Testing is not always required for a product to be labeled as an EAL, which means there is not necessarily any proof that a fluid (base oil and additives) is any better than the mineral oil product it is trying to replace.2

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BIO-BASED PRODUCTS

Since traditional hydraulic fluids have been deemed a hazardous material, any reduction in their environmental footprint is seen as a major step forward. An example of this is the push for bio-based products. Although the base fluid in these products is fully biodegradable and offers several benefits, the base fluid alone will not last long enough to be cost-effective. As a result, the blending done or the additive pack included to increase performance decreases the environmental benefits.3

PERFORMANCE TESTING

Fluid performance testing is conducted under ideal conditions, but does not look at how the fluid performs at the end of its usable life. Some products that state they are environmentally acceptable begin to breakdown quickly and performance degrades rapidly thereafter.4 These fluids can also have a large increase in toxicity as they degrade and become contaminated.5 These are just some factors that make users skeptical about the EAL options available on the market.

The next generation of hydraulic fluids must solve the problem of providing high-performance while meeting environmental safety requirements. EnBio Industries has produced a patented polyalkylene glycol (PAG) blend that is a next generation of hydraulic fluid. EnBio lasts twice as long as mineral oil products and three- to four-times longer than bio-based products. It also increases the efficiency of the pumps, thereby improving performance and lowering fuel/energy consumption.

EnBio’s high performance is possible due to the following: a high viscosity index (VI) (ensures fluid stability throughout the operational temperature range of the equipment); no shearing (the viscosity will not change throughout the life of the fluid); minimal wear on equipment (over 80% less wear (Vane pump test) compared to leading fluids); no varnishing or creation of sludge within a hydraulic system; and a coefficient of friction roughly half of other fluid options.

University testing of EnBio (Texas A&M; Penn State; University of Nevada, Reno: and Edison College) looking at all three environmental factors (toxicity, biodegradation, and bioaccumulation) concluded that EnBio’s formula has near zero impact on the

WWW.FLUIDPOWERJOURNAL.COM • WWW.IFPS.ORG

RESOURCES “The Advantages and Disadvantages of Biodegradable Lubricants.”

Machinery Lubrication.

Noria, February 2012.

2 Environmental Protection Agency (2011). Environmentally Acceptable Lubricants.

(EPA 800-R-11-002).

3 Biresaw, Girma and Mittal, K.L. Surfacants in Tribology Vol. 5, Section 14.7. Boca Raton: CRC Press, 2017.

4 Ing, Adam. Biobased Lubricants: A Viability Study.

University of Toronto. 2009.

5 Tamada, I.S.; Lopes, P.R.M.; Montagnolli, R.N.; Bidoia, E.D. Biodegradation and toxicological evaluation of lubricant oils. Brazilian Archives of Biology and Technology Vol. 55 No. 6.

Brazil, 2012.

6 OECD (1992), Test No. 203: Fish, Acute Toxicity Test, OECD Publishing, Paris.

7 Willing, Andreas. Lubricants based on renewable resources – an environmentally compatible alternative to mineral oil products.

Dusseldorf: Peramon, 2001.

Chemosphere 43.

1

natural environment when a spill occurs under realistic conditions.

Independent testing is needed as not all fluids can be tested in the same manner. For example, tests developed to review chemicals that solubilize in water, such as OECD 203, are meant to understand the effects of the solution on biological material (like fish).6 However, most fluids – like mineral oils – are not water soluble, and with a lower specific gravity actually float to the surface. The test results are false positives because the hydraulic fluid never actually entered the fish’s gills.7 Even among PAGs, EnBio is the only one that passes the biodegradation test OECD 301B across the entire product line.

COST

The hydraulic system operator’s choice of a fluid must not only meet performance requirements and comply with regulations, but must also be cost-effective. Synthetics and environmentally acceptable fluids generally have a higher price than other types of fluids.

However, the long-term savings, when key areas are considered, such as the costs of maintenance, wear and tear, equipment lifespan, and equipment replacement, can be highly significant; especially if the potential costs of a spill or leak are factored into the overall cost calculations. EnBio’s performance benefits allow for significant cost saving when compared against other options.

BEFORE CONVERSION

Fluid compatibility – especially with EALs – should always be checked. A small number of materials, such as Buna-S and pure urethane, do not perform well with EnBio. For non-virgin systems, the conversion is also important as PAGs are not miscible with other fluids, except other anhydrous PAGs. EnBio Industries assists customers throughout the conversion process.

The EnBio Industries product line allows operators to use a fluid that will promote cost reduction, prevent environmental issues with near zero ecological impact, and increase performance, making EnBio the next generation of hydraulic fluid.

A CHALLENGE IN THE ELECTRIFICATION OF YOUR HYDRAULIC SYSTEM? LET US SOLVE IT FOR YOU. Sonceboz is a leader in providing mechatronic solutions for positioning and flow control applications in challenging environments. Enable functional safety, predictive maintenance and decentralized intelligence with our solutions: • electromechanical actuators for valves • electric motors for speed controlled pumps • mechatronic drive solutions up to 5 kW Contact us and we will develop a compact, efficient and reliable solution customized for your challenge. Trust our experience: more than a billion Sonceboz solutions are at work in the world right now.

www.sonceboz.com

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NFPA Members Inspire the Next Generation

Throughout the month of October, NFPA members opened their doors to expand knowledge about and improve general public perception of careers in the industry. Each experience was unique.

Companies found it beneficial to establish relationships with educational institutions, and some took it a step further and connected with the local chamber of commerce and elected officials.

Here is the variety of ways NFPA members worked to inspire the next generation this October: • Aggressive Hydraulics: Hosted an open house for students and parents to explore fluid power manufacturing and career options.

Afterwards, the schools extended an invitation to speak with incoming students each trimester about manufacturing. Congressman Tom Emmer even stopped by for a tour.

• Airline Hydraulics: Encouraged the community to come witness the fabrication of complex, engineered systems during their facility tour and greeted about 100 students and teachers.

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• Balluff: Welcomed 120 visitors and showed them how sensors and automation work.

College admissions reps came to speak to students and parents about various manufacturing degree programs.

• Daman: Rotated three tour groups of 30 students and organized a check-in-to-win contest, which added to the day’s activities.

• FORCE: Gave area high school students a tour of the facility and an overview of fluid power and its applications. Afterwards, students were challenged to notice where fluid power might be applied on their trip back to school.

• Lanxess: Applied a two-pronged approach that included manufacturing site events and a video competition. Participating schools had a chance to win $5,000, $3,000, or $1,500 to buy equipment and supplies for their chemistry or science lab.

• Moseys: Hosted 86 local area high school students in California. The company offers tours all year long, as well, for those that couldn’t make it on MFG Day. • Paragon Technologies: Collaborated with the Macomb County Economic Development

committee and educators and administrators, contributing to the county-wide mission of reaching 2,000 students on October 6th.

• Woodward: Launched a new tour process where guides use a combination of iPads and video monitors as students make their stops across the manufacturing floor.

Have you been interested in engaging with your local community? MFGDay.com has plenty of resources that help companies to figure out what type of event to host. Contact Stephanie Scaccianoce at sscaccianoce@nfpa. com for help connecting with local schools.

If you hosted an MFG Day event, tell us your story! Contact Stephanie at sscaccianoce@ nfpa.com.

WWW.FLUIDPOWERJOURNAL.COM • WWW.IFPS.ORG

NFPA Joins ARM

BY ERIC LANKE, NFPA PRESIDENT/CEO

Three major government funding initiatives for fluid power research have so far come out of the fluid power industry’s successful partnership with the Center for Compact and Efficient Fluid Power (CCEFP). One is the hydraulic research program for off-highway vehicles at the Department of Energy. The second is the inclusion of soft robotics as a topic of interest in the Emerging Frontiers in Research and Innovation (EFRI) program of the National Science Foundation. And the third is the selection of the Advanced Robotics for Manufacturing (ARM) Institute by the Department of Defense as our nation’s newest Manufacturing USA Institute.

With so much going on it’s easy for NFPA members to get lost in the alphabet and federal agency soup. That’s part of why NFPA recently joined ARM as a non-profit, supporting member, and why I recently attended its first member meeting in Pittsburgh. I wanted to learn more about the opportunities for fluid power research in ARM, knowing that something in the neighborhood of $80 million has been allocated for industry-led, university-supported research projects that will help commercialize technologies that support the growth of advanced robotics and automation in U.S. manufacturing.

Prof. Eric Barth of Vanderbilt University, a deputy director of the CCEFP with a focus on human-scale fluid power technologies, has been a vocal presence inside of ARM since its initial formation. He has helped ARM realize that fluid power is an essential, and frankly not well-understood, actuation technology for collaborative robots in the manufacturing workplace. In its mission and strategy documents, ARM seems committed to the growth of collaborative robot technology, especially for the small- to medium-sized manufacturing industry; environments that have had a difficult time reaping the advantages of automation because of their relatively low lot sizes. Fluid power, especially with adaptive control systems, could better facilitate the rise of that technology in these spaces, and therefore fluid power represents an area that could receive research funding through ARM. But frankly, that won’t be easy. ARM has just released its first call for project proposals, and their focus will be on projects that help them achieve one of the following key strategic priorities: • Identification and packing of objects • Unloading and unpacking of objects • Transport and delivery through a complex, crowded floor WWW.IFPS.ORG • WWW.FLUIDPOWERJOURNAL.COM

• Inspection of non-standard materials • Tracking and traceability of components • Manipulation of compliant materials: food, textiles, wire harness, composite • Surface treatment: sanding, painting, polishing The good news is that these priorities are application, not technology, based. They are the challenges that ARM’s industry members told them, through a roadmapping process, that they needed the most help with. ARM is now open to technology development proposals that will help them achieve these priorities. That at least doesn’t exclude fluid power from participating.

The bad news is that although fluid power hasn’t been excluded, no specific preference for fluid power has been given. What will drive the selection of research projects is the quality of the proposals submitted, and the organizations doing the submitting must be the members of ARM – among which there are currently very few fluid power companies or fluid power-focused universities.

At the ARM member meeting, I participated in a number of matchmaking sessions. These were meetings designed to bring potential research partners together for the purpose of formulating initial proposals to ARM. And these discussions were very encouraging. The ARM membership currently consists of a nice mix of manufacturing end-users, automation and robotic technology providers, and academics with relevant skills and lab facilities for the projects. The winning proposals will likely come from exactly such teams – a manufacturer with an automation or robotic challenge, a technology provider willing to take their systems to the next level, and a university partner to help house and advance the project. I was present when one such collaboration came together that included fluid power as one of its essential components. If fluid power is to receive research funding from ARM, the construction of more such collaborations is going to be necessary.

Concept papers for ARM’s first project call were due in November, but they expect to be issuing new calls every six months or so. If there are any NFPA members (or University Education Partners) who are interested in helping out, or at least learning more, please contact me at elanke@nfpa.com or 414-7783351. Knowing that government support of fluid power research projects is currently our best way of ensuring the sustainability and growth of our industry’s academic infrastructure, I’m happy to play the matchmaker if I possibly can.

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CIRCLE 391

ISO Standards Development Continues in Switzerland The Swiss Association for Standardization (SNV) in Winterthur, Switzerland was the host of the fall TC 131 fluid power systems ISO standards development meetings. Two subcommittees (Connectors and Contamination Control) and 11 working groups met to further the developmental progress on new work item proposals, systematic reviews of published standards, interlaboratory testing to validate current standards, and to discuss possible new areas of work within the fluid power industry.

•Quality •Price •Now! Directional Control Solenoid Valves & Modulars D03, D05, D07, D08, D10

NOW STOCKING MANIFOLDS & SUBPLATES & BOLT KITS D03, D05, D08

POWER VALVE U.S.A. Corpus Christi, TX • 713-869-1064 www.powervalveusa.com • service@powervalveusa.com

More than fifty committee members from all over the world attended.

Ten U.S. experts from NFPA member companies that participate on various U.S. Technical Advisory Groups (TAGs), attended on behalf of the U.S. fluid power industry. The remaining delegates traveled from China, Japan, Belgium, Italy, France, Germany, and the United Kingdom.

MEETING HIGHLIGHTS The Subcommittee (SC) on connectors is led by chairman Lou Moreiras (U.S.), a consultant for Parker Hannifin. The SC heard updates from each of the Working Group (WG) convenors and approved via resolution to revise the standard on fluid power systems for connectors and associated components having to do with nominal pressures. The committee also approved moving forward on a revision of a standard on the test methods for metallic tube connections in hydraulic fluid power connections.

Ted Amling (U.S.) of Parker Hannifin is the convenor of the Working Group for methods of connecting hose fitting and tubes to connectors. The working group revised and published several ISO standards this past year, including standards on hydraulic hose assembly test methods and hose fittings with face seal ends. Work continues on projects revolving around test methods for tube connectors and 24-degree cone connectors.

The SC on contamination control is chaired by Barry Verdegan (U.S.) of Cummins Filtration. This SC is focusing on a number of standards that will need revision as a result of a change in a test fluid for the calibration of automatic particle counters for liquids.

Two interlaboratory tests are slated to begin in January. The committee also heard a presentation from one of the Chinese experts on regression techniques of automatic particle counters. The group encouraged the expert to begin a new work item proposal to begin the standardization process.

In the Working Group on filter and separator evaluation, convenor Bruce Shane (U.S.) of Parker Hannifin led discussions about the protocol for an interlaboratory test on filter multi-pass test under cyclic flow conditions that will be conducted beginning in early 2018.

CONTINUING THE DEVELOPMENT PROCESS NFPA members are encouraged to participate in fluid power industry standards development. Whether at the national and/or international level, your engineering expertise is needed • to help influence global technology; • give expert input; • be a part of the U.S. voice in an international arena.

Contact Denise Rockhill at drockhill@nfpa.com to learn how you can get involved. NFPA is the secretariat to ISO technical committee (TC 131) on fluid power systems and administrator for 11 fluid power ANSI U.S. TAGs.

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WWW.FLUIDPOWERJOURNAL.COM • WWW.IFPS.ORG

Switch Your Swivel!

Registration Open for 2018 NFPA Annual Conference Join us in Orlando for the NFPA 2018 Annual Conference. Scheduled for February 20-22 at the Four Seasons Resort–Orlando at Disney World, this is an event you don’t want to miss! We’ve expanded the General Session programming with more speakers on more diverse topics to provide solid takeaways for companies throughout the fluid power supply chain. Plus, if you register before January 5 you will qualify for Early Bird pricing!

Combine expert presenters in expanded sessions, unique networking opportunities with the most influential leaders of our industry, and an easy-to access, beautiful location, and you’ll experience a new kind of ‘magic’ in Orlando this February.

Visit nfpahub.com/events to register and book your hotel.

Questions? Contact Leslie Miller at (414) 7783369 or lmiller@nfpa.com.

®

THOUSANDS OF SWIVEL OPTIONS

Inline & 90° Hydraulic Live Swivels • Rated To 10,000 P.S.I. • Heat Treated • Available in BSPP • Superior Quality Alloy Steel • Rebuildable Ball Bearing Design • Withstands Heavy Side Loads • 304 & 440 Stainless Steel • Full Flow — Low Pressure Drop Custom Design & Sizes Available Quality U.S.A. Made Products, Patent No. 5547233 Email: sales@superswivels.com • Fax: 763-784-7423

www.SuperSwivels.com 763-784-5531 CIRCLE 393

This is how you say it’s going to be okay.

Every 8 minutes the American Red Cross responds to a disaster and makes this promise. You can help us keep it.

Donate today at redcross.org 149625-22 9/17

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QUICKCHANGING

R B TS

Enabling a single robot to exchange end effectors during a manufacturing or assembly process, much as a human is capable of operating different tools, increases robot flexibility. When there are a multitude of applications that require tool-changing, automating this process translates into a significant reduction in expensive, non-productive tool-changing time.

A case that illustrates the importance of Robotic Tool Changers involves the new, automated design-testing application at Schmalz, a company specializing in vacuum automation and ergonomic handling solutions globally.

The first step in automating Schmalz’s proof-of-concept process included installing a large FANUC robot for material handling. Although the robot provided some initial benefits, tools on the robot still had to be changed by hand, and this manual process created downtime.

New!

FLAT FACE DESIGN “TVF” SERIES QUICK DISCONNECT • • • • •

Up to 6,000 PSI Operating Pressure—Coupled or Uncoupled Full 4:1 Safety Factor Superior Flow Characteristics—Minimal Pressure Drop RoHS Compliant Plating Multiple Port Options—Female NPTF, Female SAE O-Ring, Female BSPP, Code 61 & 62 Flange Port/Head P.O. Box 6479, Fort Worth, TX 76115 V. 817/923-1965 www.hydraulicsinc.com

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WWW.FLUIDPOWERJOURNAL.COM • WWW.IFPS.ORG

Schmalz needed a tool changer suited both to the size of its 600 kg FANUC robot and the unpredictable loads of its customers’ test material, which could range from featherweight plastic sheets to extremely heavy automotive components. To meet this need, Schmalz added ATI Industrial Automation’s Quick-Change tool changers.

Robotic tool changers are designed to function for millions of cycles at rated loads, while helping to maintain extremely high repeatability. An automatic robotic tool changer must possess physical characteristics that are at least equivalent to the robot arm itself. It must hold the tool securely - even if electrical power or the air supply fails. The ATI changer has a master plate mounted on the robot arm and a tool plate attached to the tool. The heart of the locking mechanism is an air-actuated piston on the master plate.

The new Robot Test Cell at Schmalz includes one Master and three Tools mounted to different Schmalz Grippers–which can weigh up to 130 lbs. each before product is handled. With this new Robot Test Cell Schmalz can now design and test more custom solutions for its large variety of customers with a very broad variety of different requirements and can evaluate each customer sample more thoroughly in a shorter amount of time. The new test system is in line with the company’s sustainability goals as well since it is contained in a single work cell, and additional tools can be added quite easily to further increase productivity.

Integrating the Tool Changer products gave Schmalz the ability to handle the variable payloads of customer material and seamlessly transition between each of the different Grippers in a single test run. If needed, multiple trials can be performed to narrow down and select the best equipment for the job. The Tool Changers have also provided an additional measure of safety by keeping employees out of the robot cell.

For more information about Schmalz, Inc., visit www.schmalz.com/en For more information about ATI Industrial Automation’s Tool Changers, visit www.ati-ia.com/Products/toolchanger/robot_tool_changer.aspx

STAINLESS STEEL FITTINGS AVAILABLE IN INCH AND METRIC

www.polyconn.com 763-559-0388

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FIGURE IT OUT

NEW PROBLEM

Solution to Previous Problem

CYLINDER SPEEDS UP ON ITS OWN

Meter-out speed controls on single-rod cylinders cause the rod-side cylinder pressures to intensify higher than the cap end, which is normally the maximum pump pressure setting. If the cylinder develops a piston leak, it acts like a regenerative circuit, forcing rod-side oil to the cap end, speeding up the cylinder. We told them to close off the isolation ball valve on the cap end and shift the control valve to retract the cylinder. If it extends, the cylinder is leaking past the piston seals, causing this speed problem.

VISIT FLUIDPOWERJOURNAL.COM TO VIEW PREVIOUS PROBLEMS.

Directional Valve Seals Failing I was asked to help inspect a 4" bore, 2" rod cylinder that had a 40" stroke and an 8" stop tube. It had a D05 size mounting pad machined into the blind-end cap of the cylinder with a steel tube connection from the rod cap to the blind-end cap. The cylinder shop had repaired this cylinder about 2 months earlier, and, at that time, the cylinder did not have a valve mounted on the D05 pad, and the customer could not tell them where it was leaking. So, they did a light hone, installed new seals, tested and returned it to the customer only to have it come back again for warranty repair. This time, however, it had a 3-position proportional directional valve mounted on it. The cylinder shop was told, “It leaks,” but again, the customer could not say where.

The cylinder shop needed help to understand how to electronically stroke the proportional valve.

They connected a pressure and tank line to the cap-end plate, and we connected our portable power supply and command generator, so they could stroke the cylinder electronically with the proportional valve mounted on it. Oil started leaking up through one of the mounting bolt holes when they reached about 200 PSI. They removed the valve and found that one of the O-rings on the valve had extruded and failed. All the mounting bolts were tight, and it looked like an easy fix.

However, the cylinder came back again with the same problem 6 weeks later.

What do you think is the problem?

BY ROBERT SHEAF, CFPAI/AJPP, CFPE, CFPS, CFPECS, CFPMT, CFPMIP, CFPMMH, CFPMIH, CFPMM, CFC INDUSTRIAL TRAINING

2525 Sea Harbor Rd.

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WWW.FLUIDPOWERJOURNAL.COM • WWW.IFPS.ORG

PRODUCT REVIEW

Series 390 Flush Bottom Tank Ball Valve VALTORC INTERNATIONAL • WWW.VALTORC.COM

This valve series features a number of port configurations, including standard, full port pipe and full port tube dimensions. Several end connection options are available, including Tri clamp, socket weld (SW), threaded (NPT), butt weld, 150# and 300# flanged and grooved. Additionally, there are a wide range of seats available, including EPDM, BUNA, PEEK, Derlin, TFE, RTFE, Viton and several others, such as the optional cavity fillers. The valves are machined from 316L stainless steel.

INDUSTRIAL DUTY LED LIGHTS FOR PC13 MODEL COXREELS • WWW.COXREELS.COM

A new line of three industrial duty LED lights is now available on the PC13 (Power Cord) cord reels. The new LED lights feature a variety of industrial-grade features and options, including: a 50,000 hour rating, internal light diffusers, and shatter-resistant polycarbonate lenses. Coxreels’ new LED lights also feature adjustable steel hooks or magnetic mounts for hands-free placement.

EXPLOSION-PROOF PVE-EX ELECTROHYDRAULIC ACTUATOR DANFOSS POWER SOLUTIONS WWW.DANFOSS.COM

PVE-EX series actuators are certified according to ATEX and IECEx standards for use in explosive atmospheres and incorporate closed-loop, spool position control and event monitoring technology.

Designed with a cast iron enclosure, the PVE-EX protects the interior connectors and embedded electronics, while a protective coating on the exterior provides corrosion protection.

The PVE-EX ex db protection variant uses a flame-proof protection method.

The Extractor/ Dryer® Series LA-MAN® CORPORATION • WWW.LAMAN.COM

DIN 24342 Proportional Flow Control (5000 psi) ALMO MANIFOLD AND TOOL COMPANY WWW.ALMOMANIFOLD.COM

This proportional control valve comes in sizes from 16 to 50mm and fits standard ISO 7368 and DIN 24342-cavity porting. Control areas provide 4 millisecond response time and can close the poppet under a high-pressure load. The valve has On Board Electronics. All you need to provide is a 0-10-volt command, which is proportionate to the position of the valve. No additional Amplifier Card is needed. The valve requires a 24-volt supply with a minimal electrical current of 3 amps per valve. It also requires a minimum pilot pressure of 40 psi. If voltage or pressure drops below the minimum requirement, the valve shifts closed to safe mode.

WWW.IFPS.ORG • WWW.FLUIDPOWERJOURNAL.COM

This series is designed as a point of use, two-stage filter that removes moisture and contaminates from tools and equipment. Each model offers a standard 5-Micron rating with lower Micron ratings available. Flow ranges of 15 SCFM to 2000 SCFM and pressure ratings of up to 250 PSI are available. Additional standard features include a built-in differential pressure gauge, which provides a visual indication of required maintenance, and a weep drain that allows for a continual discharge of moisture.

JANUARY/FEBRUARY 2018

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B

ecause air is a compressible fluid, controlling the speed of actuators is a unique problem. A pressurized air cylinder that is not under load will extend and/or return suddenly if the exhaust air is not controlled.

This is often the case and is not likely to cause damage since most air cylinders are engineered with shock pads, or incorporate external stops on the cylinder rod to prevent the piston from bottoming internally against the head and cap ends. Unlike hydraulics, most pneumatic applications require full extension or full retraction without an intermediate position.

It is necessary to understand the load dynamics that are present and to calculate the Load Ratio (LR) to achieve accurate speed control. This extra force, beyond the load force requirements, determines how fast the load can accelerate.

Determine the Appropriate Solution to

Control Air Cylinder Speed EQUATION

LR =

Factual • 100 Ftheoretical

LR = Load ratio% Factual = Actual force required to balance load lb.

Ftheoretical = Theoretical force produced based on pressure and bore size at cylinder lb.

The load ratio should never exceed approximately 85%. The lower the load ratio, the better the speed control, especially when the load is subject to variations. To get a constant speed, the load ratio should be approximately 75% or less. If accurate speed control is required or load forces vary widely, 60-70% should not be exceeded, perhaps no more than 50% in vertical applications.

A positive speed control is obtained by throttling the inlet or exhaust air of the cylinder by means of a speed sontroller, which is a combination of a check valve, to allow free flow towards the cylinder, and an adjustable throttle (needle valve).

Metering out is a common method for controlling double acting cylinders. This is not to say that air cannot be metered into a cylinder to control velocity. However, unless a constant restrictive load is being moved, the cylinder will lurch as air pressure builds to the requirement of the load and then the air expands suddenly in the cylinder, dropping the pressure, only to repeat the process and lurch again.

In some instances, the cylinder speed can be adversely impacted by the resistance created by the tubing and valving connected to the cylinder.

To prevent the restriction of flow from delaying

34

JANUARY/FEBRUARY 2018

ENERGY TIP:

While increasing the supply pressure may cause the acceleration rate to increase, it is done at a higher energy cost.

Acceleration requirements need to be evaluated, and when slower acceleration will work, then slowing the acceleration will save energy costs.

LR = Load ratio% Factual = Actual force required to balance load N Ftheoretical = Theoretical force produced based on pressure and bore size at cylinder N

the response time of the cylinder, a quick exhaust valve may be employed. The quick exhaust valve connects directly to the cylinder port and allows for a large volume of air to exit the cylinder quickly to prevent dampened response times.

The rpm of air motors, on the other hand, is commonly controlled by the pressure at the inlet. Many air motors power constant loads, so it is as effective to regulate the inlet pressure as it is to provide a restriction at the inlet or outlet that wastes power needlessly.

Fig. A illustrates a double-acting cylinder mounted vertically with a load hanging on the cylinder rod. If the flow controls (1.1 & 1.2) were to be reversed for “meter-in” control, the load would drop suddenly when the solenoid valve is signalled to lower the load. “Meter-in” flow control would cause uncontrollable lowering and a hazardous condition.

Notice there are flow control valves in each cylinder line of the circuit to control the velocity.

Each flow control valve allows air to pass freely in one direction and to be restricted in the other. As the valves are configured in the circuit, shifting the power valve to raise the load allows free flow of air through the check valve to the rod end of the cylinder to lift the load. The flow from the cap end is restricted back through the control

Calculating Load Ratio

SAFETY TIP:

Because oil mist is a potential hazard to personnel and OSHA mandates allowable exposure limits, the use of a coalescing muffler after the quick exhaust valve may be necessary.

WWW.FLUIDPOWERJOURNAL.COM • WWW.IFPS.ORG

valve to prevent the cylinder from retracting suddenly shouldhanging the load be removed.

Shifting er mounted vertically with a load on the cylinder rod. If SAFETY TIP: the directional control valve to extend the cylinsystem control, versed forInstalled “meter-in” the load would drop suddenly when der and lower the load directs air to the cap end valves should of the cylinder through the check valve. Return load. “Meter-in” flow control would cause uncontrollable lowering never be the air from the rod end of the cylinder must pass sole means through the restriction, preventing the load from of supporting dropping suddenly. This is a meter-out circuit.

a load or

h cylinder preventing Each flow inadvertent actuator e direction movement. valves are Use approved wer valve mechanical locking devices rough the when required. der to lift restricted event the the load ol valve to ects air to 1.4 eck valve. der must the load ut circuit.

s should a load or ment. Use es when

TEST YOUR SKILLS

1.1

1.0

1.2

LOAD 1.3 14

4

2

Fig. A: Velocity Control for an Air Cylinder

12

5 1 3

Referring to Fig. A, which valve configuration would require the lowest pressure while the load is being lifted? a. Remove the flow control at valve 1.2. b. Reverse flow control check at valve 1.1. c. Reverse flow control check at valve 1.2. d. Reverse flow control checks at valves 1.1 and 1.2. e. Leave flow control valves 1.1 and 1.2 as they are.

Go to page 46 for the solution.

Fig. A - Velocity Control For An Air Cylinder Caps • Plugs • Grips Protection • Finishing • Masking

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JANUARY/FEBRUARY 2018

35

RESEARCH TO WATCH

This column will bring you the progress of the pre-competitive research being conducted at member universities that are part of the CCEFP network. This research will help give insight into the future direction of fluid power.

The Center for Compact and Efficient Fluid Power (CCEFP) holds a monthly forum, highlighting research, workforce, and special topic presentations.

CCEFP is a network of fluid-power-research laboratories, academic faculty, graduate and undergraduate students at nine universities. It is also a National Science Foundation Research Center. For more information on CCEFP, visit www.ccefp.org.

Since 2014, the National Fluid Power Association (NFPA) Foundation has supported and is helping to expand the pre-competitive fluid-power-research activities of the CCEFP, dramatically increasing the number of institutions and students impacted by its research program. For more on NFPA, visit www. nfpa.com/aboutnfpa/ missionfocus.aspx.

36

JANUARY/FEBRUARY 2018

Investigation of Noise Transmission through Pump Casing

PRESENTED BY: PAUL KALBFLEISCH, A PHD STUDENT AT PURDUE UNIVERSITY RESEARCH ASSISTANT: DAN DING, A MASTER’S STUDENT AT PURDUE UNIVERSITY PROJECT LEADER: DR. MONIKA IVANTYSYNOVA, PROFESSOR AGRICULTURAL & BIOLOGICAL ENGINEERING/MECHANICAL ENG INSTITUTION: PURDUE UNIVERSITY

PURPOSE The goal of this research is to model the transmission of vibrations from a swash plate type axial piston pump through the pump’s casing to the generation of acoustic noise in the surrounding environment. The desired result of this research is to gain a better understanding of noise generation and transmission in axial piston pumps and to create a comprehensive model of an axial piston pump’s noise emission. This computer- based model can be used for the predictive design of pumps, including pump housing and valve-plate design to reduce airborne noise generation.

PROGRESS Using a generic structural acoustic process, a pump’s oscillatory energy was organized into three domains—hydraulic, vibration, and acoustic—and a task was formulated for each domain.

Task 1 (hydraulic) was to measure pressures to validate the current hydraulic model, task 2 (vibration) was to preliminarily perform experimental modal

analysis, and task 3 (acoustic) was to experimentally characterize the sound field using a custom made robot. So far, the experimental results have supported that pump harmonic frequencies below 5,000 Hz are the dominant frequencies of audible noise. To better interpret the spatial distribution of noise, it was decided to minimize the reflection of pressure waves by covering the expose concrete floor in the semi-anechoic chamber. Additionally, a new hemispherical measurement grid was created in order to take advantage of its geometric symmetry that required new robot speed and a taller robot stand. Major improvements were also made to the sound chamber in order to raise the shaft height and improve the acoustic qualities. The modelling method is being revisited, and custom-vibration modelling software is being developed.

NEXT STEPS The remodeling of the sound chamber will be completed, and the experimental modal analysis will continue.

WWW.FLUIDPOWERJOURNAL.COM • WWW.IFPS.ORG

Product Catalog

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An updated product catalog is available as an interactive pdf on the Adaconn® + Inserta® website. The catalog includes new products introduced in 2017 such as the thread-in guided disc check valves in steel and stainless steel, slip-in guided disc check valves, slip-in check valve retaining adapters, and stainless steel flange type ball valves. New products are planned for 2018 including a retaining adapter for use with guided disc slip-in check valves deployed in a side ported flow configuration. This will allow for lower pressure drops than for similar flow paths through traditional thread-in cartridge valves. Check back often as the catalog will be continually updated with new products.

Miniature Pneumatic Products Catalog

CLIPPARD INSTRUMENT LABORATORY, INC. • CIRCLE 406

Clippard, a manufacturer of the most complete line of miniature pneumatic products, offers a 356-page full product line catalog with technical information, product applications, and more. It includes features, specifications, photographs, and technical drawings for over 5,000 standard products. It’s your complete source for miniature fluid power products. Request your free copy today!

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Free Design Guide for Fluid Power Motion Control DELTA COMPUTER SYSTEMS • CIRCLE 408

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Delta Computer Systems For your free copy, visit deltamotion.com or call 360.254.8688.

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Benchmark B Series Cut Sheet HYDRAULEX • CIRCLE 409

Benchmark B Series vane pumps come in four basic frame sizes: single, double, triple and drive train configurations, with pressures up to 4350 psi and maximum rpms up to 3000 in a single pump. Our line of B Series vane motors are available with reversible shaft rotation and a variety of torque ratings and port locations. View or download the latest Benchmark B Series Cut Sheet by visiting our website at www.ahx1.com.

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Brochure offers a comprehensive overview of the company’s complete line of compressed air filtration products. Highlighted is the patented family of Extractor/ Dryers. These two-stage, point of use filters remove contaminates to a 5-micron rating with flow ranges of 15 to 2,000 scfm. Additional products available include the SuperStar Membrane Dryer, .01 Micron Filter, Refrigerated Extractor/Dryer, and much more.

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304 & 316 Stainless Steel Liquid Level Gages OIL-RITE CORPORATION • CIRCLE 412

Catalog includes the popular styles of MAIN Manufacturing’s extensive offering of Hydraulic Flanges and Components – ready for immediate shipment. Dimensional drawings, part numbers, metric and weld specifications included.

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Increased Productivity Starts Here PHD INC. • CIRCLE 413

The new PHD main catalog features PHD’s complete standard product line plus 21 new products, the Optimax® line of global drop-in actuators, and the PHD Plus® line of electromechanical actuators.

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Polypropylene and Nylon Pipe Fittings POLYCONN • CIRCLE 414

Polyconn specializes in developing and supplying high quality pneumatic hose, pneumatic hose fittings, and pneumatic components.

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Hydraulic Live Swivels Catalog SUPER SWIVELS • CIRCLE 415

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SC Hydraulic Engineering Corporation 1130 Columbia Street • Brea, California 92821 • USA Phone (714) 257-4800 • Fax (714) 257-4810 Email info@schydraulic.com www.SCHydraulic.com 39

CIRCLE 403

Methods for Stopping a Linear Pneumatic Actuator’s Movement in Mid-stroke

By Richard Bullers, SMC, CFPPS

A

machine operator defeats a guard and reaches his hand into a machine to reset a part in a nest, but misjudges the speed of the press. Does the pneumatic actuator driving the tooling cause a serious injury or were other steps taken to stop the actuator in time?

As you can imagine, stopping and holding a pneumatic actuator in mid-stroke can be an important design feature. Application examples include positioning a part in more than one location, preventing a machine crash in the event of a fault, or including a redundant safety function in a machine.

If you are unfamiliar with the methods, functional considerations, performance, or safety aspects of stopping and holding a linear pneumatic actuator in mid stroke, this article can serve as a starting point for making the right decisions based upon realistic performance expectations.

PREREQUISITES

“Single acting” cylinders incorporate an internal spring for automatically returning or extending them to a home position and are not used for positioning, but may provide an ancillary function such as driving a shot pin into a lock. Avoid them for positioning, but consider them for complementary functions.

A type of double acting actuator that is ideal for stopping in mid-stroke is known as a “locking cylinder”. This type of actuator incorporates an internal mechanical lock to hold the rod in place once cylinder motion has stopped.

Double acting cylinder Fig 1. Closed Center Valve with Residual Pressure Release

Double check valve

Consider the following questions and answers when selecting a linear pneumatic actuator that must be capable of stopping anywhere along the stroke.

1. WHAT TYPE OF LINEAR ACTUATOR SHOULD I USE OR AVOID? Selection of the correct actuator is a critical part of the process. The term actuator encompasses many types of pneumatic drives, including single acting cylinders, double acting cylinders, rotary actuators, air chucks or grippers, and air bellows. The focus of this article is on double acting cylinders where air is supplied and controlled to both sides of an internal piston.

Actuators that have inherent leakage due their construction are avoided.

Leakage makes it virtually impossible for an actuator to hold a specific position after it has been stopped. Examples include “band cylinders” and vane type rotary actuators.

40

JANUARY/FEBRUARY 2018

Needle valve

Speed control

5 port, 3 position, closed center valve

2 port, 2 position valve

WWW.FLUIDPOWERJOURNAL.COM • WWW.IFPS.ORG

2. HOW MUCH LOAD IS APPROPRIATE? An overloaded actuator will be more difficult to control or stop and will also be subject to accelerated wear or failure. Manufacturers use different ways to answer this question, but one method used to quantify load is with a “load ratio”.* Load ratio for purposes of this article is: LR = (actual force/theoretical force) X 100% The actual force is the weight of the load, friction, and any other external force the actuator has to overcome. The theoretical force is the force produced by the actuator as pressure pushes against the cross sectional area of the piston and is commonly represented by the formula: F = P X A where F = force, P = pressure, and A = cross sectional area of the cylinder For linear actuators use a load ratio of 50% or less. Lower load ratios generally improve stopping performance. For example, a cylinder exerting 500 lb. of force would use a load of 250 lb. for a 50% load ratio. A 150 lb. load on the same cylinder would represent a 30% load ratio.

3. WHAT TYPE OF STOPPING PERFORMANCE CAN I EXPECT? Realistic expectations of what can be accomplished with the methods described take into account the following facts: • The compressibility of air prevents stopping an actuator with precision.

Expect the cylinder to overrun a stop point and do not expect to be able to repeat a stopping at a specific point each time.

• All elastomer seals used in pneumatic components have some level of leakage that will increase with wear. Expect the actuator to “drift” away from the point it stops over time unless a mechanical lock is also used to hold it in place. Do not expect a pneumatic actuator to hold position for extended periods of time by only using the method of trapping pressure with elastomer seals.

• Not every factor affecting performance can be anticipated. Sizing of the actuator and components in the pneumatic circuit is theoretical.

Actual performance requires validation through testing of the circuit under actual working conditions. Expect the results to vary.

• Lower actuator speeds and load ratios will improve stopping performance.

METHODS USE OF A CLOSED CENTER DIRECTIONAL CONTROL VALVE Directional control valves send pressure to the port on one side of a double acting cylinder while allowing the opposite side to exhaust to atmosphere.

They will have a minimum of two positions for the internal valve spool that will shift from one position to the other to either extend or retract a pneumatic actuator. A 5 port, 2 position valve is abbreviated as a “5/2” valve.

A number of directional control valves will have three positions with the center position providing a specialized function. Springs on each side of the valve spool force it into the center position when no energy is being applied to shift the valve spool.

A “closed center” valve blocks pressure at all ports in the center position and will trap it between the valve and actuator. This stops the actuator’s movement. “Rubber seal” valves that have a lower leakage rate are used.

Avoid any valve described as “metal seal”.

When a closed center valve is used, a method of safely relieving pressure from between the cylinder and directional control valve is prudent. A method of residual pressure release, such as use of a double check valve, needle valve, and 2 port, 2 position valve (abbr. “2/2”) is used in Fig 1.

PILOT OPERATED CHECK VALVES A check valve only allows flow in one direction. A pilot operated check valve (abbr. “P.O. check”) stops the flow of air in one direction, but if a pilot signal is present, the valve will allow flow in both directions. A P.O. check is sometimes combined with a speed control and designed to connect directly to an actuator port or may be offered as a pair in a stand-alone assembly.

When two P.O. checks are connected directly to an actuator’s ports and use a circuit that exhausts both pilot signals, they will stop an actuator in *Depending upon the manufacturer and type of actuator this relationship may be expressed as a “load factor” and use different values.

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either direction. For this purpose the lines providing the pilot signals to the P.O. check valves are integrated into a circuit using an “open center” (also called “exhaust center”) valve. An open center valve allows both cylinder ports to exhaust to atmosphere when no energy is being applied to shift the valve spool (Fig 2).

A single P.O. check can be used for “drop prevention” when an actuator is oriented vertically. If air pressure is lost the load will be stopped when the signal to the P.O. check is exhausted (Fig3).

Fig. 2 Pilot Operated Check Valves for Actuator Stop

Double acting cylinder

Double check valve

Needle valve

P.O. Check w/ speed control

2 port, 2 position valve 5 port, 3 position open center valve

Double acting cylinder Speed control 5 port, 2 position valve

P.O. Check w/ speed control Needle valve

Fig. 3 Pilot Operated Check Valve for Dropping Prevention

2 port, 2 position valve

JANUARY/FEBRUARY 2018

41

Fig 4 Force Balance with Pressure Center Valve and Locking Cylinder

Load

Lock

Check type regulator Locking cylinder

HARD STOPS The most accurate way to stop a pneumatic actuator in precisely the same location each time is with a hard stop. This can take a number of mechanical forms, including stops that can be moved into and out of position as needed.

A critical factor in using hard stops is determining the amount of kinetic energy generated by the actuator’s terminal velocity and mass being moved and the ability of all components to safely absorb this energy.

Use of slower speeds or deceleration technology such as a shock absorber may be required to prevent machine damage or a hazardous situation.

Speed control

5/3 pressure center valve

Force balance by lowering pressure with a check type regulator to balance the equation F=PXA. Used when the load is constant.

F = Force P = Pressure A = Area

STOP VALVES A 2/2 valve that allows air flow in both directions is also called a “bi-directional” valve. By using air pilot signals to operate a pair of 2/2 valves connected to the actuator ports the actuator can be stopped when the pilot air is exhausted. This is similar to the type of logic illustrated in Fig. 2, but with the advantage of being able to use other types of directional control valve function than “open center”.

FORCE BALANCE A “pressure center” 5/3 valve is used for a force balance circuit. This type of valve sends pressure to the A and B output ports simultaneously.

The flow path in a pressure center valve forms a circuit loop from one side of the piston through the valve and back to the other side of the piston.

For this reason an external force can move the piston rod unless an equal force is created on the opposite side of the piston as a counter balance.

A “check type regulator” is used between a 5/3 pressure center valve and the side of the actuator piston that is exerting too much force for

42

counter balance. A check type regulator allows air to flow back through and around the regulator when pressure to the regulator is exhausted.

As pressure is reduced, the force is reduced. When the force on each side of the actuator piston is equalized, the actuator will stop.

This type of circuit logic is often used with locking actuators which require the actuator to be fully stopped before a brake is applied to prevent scoring of the piston rod and accelerated wear. A force balance can also be used with standard actuators; however, any change in the load also requires a compensating change in pressure to hold the actuator’s position.

A force balance circuit also ensures that “back pressure” is present when the directional control valve is shifted to continue the extension or retraction of the cylinder. “Back pressure” is the pressure in an exhaust flow path that ensures a smooth and controlled restart of cylinder movement.

If pressure is introduced to one side of the piston while no “back pressure” is on the other side of the piston the cylinder rod and load may “shoot out” with little or no control resulting in a high speed impact at end of stroke. Damage or injury can result from high speed cylinder impacts.

In a “locking cylinder” circuit a 5/3 pressure center valve and check type regulator are used to achieve a force balance while a separate valve is used to operate the lock mechanism. These valves are operated sequentially so the lock mechanism is not being applied during piston movement.

JANUARY/FEBRUARY 2018

PERFORMANCE For better stopping accuracy reduce the volume in the pneumatic circuit by locating the directional control valve as close to the actuator as possible. The use of precision regulators may help with repeatability if trying to stop the actuator in the same location each time.

Consider leakage in the circuit as inevitable and do not rely upon elastomer seals alone to hold an actuator’s position for prolonged periods of time.

Ensure the cylinder is correctly sized for the load and there is sufficient flow capacity for the directional control valves, tubing, and other components. Contact the manufacturer of the components or a certified fluid power pneumatic specialist if you do not have sizing information When a higher level of stopping accuracy is required, but use of a hard stop is functionally prohibited, consider an alternate technology such as air/hydro systems, hydraulic circuits, or electric actuators SAFETY Never employ a cylinder stopping method without redundancy, (in particular a mechanical lock) when a hazardous situation may result from a component failure in the circuit. It’s no different than crawling under your car. You don’t depend upon the elastomer seal alone in the hydraulic bottle jack (cylinder) but place a jack stand (mechanical lock) to prevent a crushing hazard.

Pressure trapped within the pneumatic circuit is considered a potential safety hazard. The circuit design must account for the controlled release of trapped energy to avoid unintended consequences.

The startup of an actuator after stoppage should account for the safe introduction of pneumatic energy back into the machine to prevent any unplanned motion, shoot out of piston rods, or sequence mistiming that could result in machine damage or a hazard.

Always perform a safety analysis. Use a recognized safe machine design methodology such as ISO standard 13849-1. If unfamiliar with these practices, seek assistance from qualified professionals.

WWW.FLUIDPOWERJOURNAL.COM • WWW.IFPS.ORG

Take Your Best Shot

Submit your fluid power photo by visiting www.ifps.org or www.fluidpowerjournal.com to take your shot at prize money and recognition.

Each year, the International Fluid Power Society and the Fluid Power Journal hold a photo contest in honor of Fluid Power Professionals' Day. This year’s contest runs from January 1 through March 31, 2018.

THE 2018 CATEGORIES ARE:

PHOTOS ARE JUDGED BY THE FOLLOWING CRITERIA:

NEW PERSPECTIVE: Photos that show fluid power used in novel ways and from views not everyone gets to see.

TEAMWORK: Photos of people working together using fluid power to get the job done.

FUN WITH FLUID POWER: Photos that capture the joy of using, learning, or teaching about hydraulics and pneumatics.

THE MUSCLE OF FLUID POWER: Photos that capture the might of fluid power in action.

SUBJECT: Does the photo clearly depict fluid power?

ORIGINALITY: Is the photo fresh and unique?

VISUAL IMPACT: Is the photo dramatic and visually impressive?

QUALITY: Is the photo in focus with good contrast, lighting, and capture the subject? (Hint: use a resolution of 300 ppi at 100% size for the best results.)

A PEOPLE’S CHOICE prize will be awarded based on votes during a one-week voting period – stay tuned for details.

THE FOLLOWING CASH PRIZES WILL BE AWARDED: 1st - $250, 2nd - $100, 3rd - $50, People’s Choice - $100

www.nfpa.com

www.fluidpowerjournal.com

WWW.IFPS.ORG • WWW.FLUIDPOWERJOURNAL.COM

A panel of judges will announce three winners for each category on June 19, 2018 in celebration of Fluid Power Professional’s Day.

www.ifps.org

www.fpda.org

www.cfpa.ca

JANUARY/FEBRUARY 2018

43

FACT SHEET OFFICIAL SHOW NAME

The International Construction and Utility Equipment Exposition

ICUEE 2017

The International Construction and Utility Equipment Exposition (ICUEE) 2017 Delivers Innovative Industry Trends, Hands-On Experiences, and Enthusiastic Crowds Running from Oct. 3-5, the 2017 installment of the Exposition, also known as the Demo Expo, was the largest in the show’s history with 28-plus acres of exhibits (nearly 1.24 million net square feet) of the latest utility and construction equipment, products and technologies, and more than 1,000 exhibitors, of which 25 percent were new to the show.

Nearly 18,000 registered attendees (close to the 2015 record-breaking attendance) from all 50 states and more than 50 other countries saw the exhibits, raised money for the Red Cross Disaster Relief and the Call of Duty Endowment, and took advantage of all the show had to offer. Attendee demographics in the utilities category was up 6 percent over 2015 and the utility construction category was up 3 percent over 2015 totals.

Exhibits and Equipment “Test Runs” ICUEE 2017 featured specialized exhibit pavilions for fleet management, safety and green utilities, China and Korean exhibit pavilions, and the Lift Safety Zone from the National Commission for the Certification of Crane Operators (NCCCO).

Hands-on equipment test drives and interactive product demonstrations included a 2-mile Test Drive Zone for on-road equipment and technologies.

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JANUARY/FEBRUARY 2018

PURPOSE

The premiere event for utility industry professionals to gain comprehensive insight into the latest technologies, innovations, and trends affecting their industry.

ICUEE FEATURES:

• Hands-on demonstrations of a broad range of construction and utility equipment.

• An education program inspired by the industry’s hottest topics and led by industry professionals.

• Opportunities to explore the newest industry products and innovations.

• A chance for attendees to network with thousands of industry peers.

DATES AND LOCATION

The next ICUEE is set for Tuesday, October 1 - Thursday, October 3, 2019 at the Kentucky Exposition Center in Louisville, Kentucky, USA.

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ATTENDEES

ICUEE targets utilities providing electric, telecommunications/cable, natural gas, water, and wastewater services as well as the contractors who provide utilities with infrastructure engineering and construction services.

EXHIBITS AND DEMONSTRATIONS

ICUEE covers more than 25 acres of indoor and outdoor exhibits and product demonstrations. Equipment at ICUEE includes (but is not limited to) all-terrain carriers, attachments, components, earthmoving, environmental, light, overhead & maintenance, material handling, recycling, safety, testing, transportation, trenching, trenchless, and trucks & utility materials/ supplies. Machinery is exhibited in job-like conditions and attendees can experience first-hand equipment in action, working at ground level, underground, and overhead.

EDUCATION

Education on Industry Best Practices ICUEE 2017 education focused on utility and construction “hot topics” presented by industry experts to help attendees enhance their safety knowledge, increase efficiencies and reduce downtime on the job.

New Field Classroom sessions highlighted industry best practices first-hand with equipment on the show floor, and the indoor ICUEE Demo Stage expanded the show’s outdoor equipment demo component with more product innovations in action.

Another new feature, ‘Tomorrow’s Topics Today’ sessions from show owner and producer Association of Equipment Manufacturers (AEM), explored industry trends and emerging technologies.

Rounding out ICUEE 2017 education were popular returning programs: the iP Utility Safety Conference and Utility Fleet Conference plus industry certifications.

Special Events and Networking In response to the unusual number of natural disasters, a new ‘Disasters Taskforce: Preparing for What’s Next’ program tackled disaster preparedness in the aftermath of the current hurricane season, with a former FEMA advisor.

Gretchen Bakke, author of ‘The Grid: The Fraying Wires Between Americans and Our Energy Future’ was the featured speaker in the new ‘Diversity in the Grid’ luncheon brought to you in partnership with Terex Utilities and AEM. The ICUEE Industry ‘Give-Back’ Auction returned with the goal of connecting military veterans with quality jobs. All proceeds again went to the Call of Duty™ Endowment, the nonprofit organization founded by Bobby Kotick, CEO of Activision Blizzard. The auction, plus onsite donations, to benefit the organization raised over $37,000. The Endowment helps military veterans secure high-quality employment and works to raise awareness of the value vets bring to the workplace.

A new “Discover ICUEE” walking tour before show opening offered a behind-thescenes look at the exhibition, and ICUEE 2017 closed with an enhanced ‘Bourbon, Beer & Bites’ networking reception.

The biennial ICUEE is the leading event for utility professionals and construction contractors seeking comprehensive insights into the latest industry technologies, innovations and trends, owned and produced by the Association of Equipment Manufacturers (AEM).

AEM is the North American-based international trade group representing off-road equipment manufacturers and suppliers, with more than 950 companies and more than 200 product lines in the agriculture and construction-related sectors worldwide.

Visit www.icuee.com and www.aem.org.

WWW.IFPS.ORG • WWW.FLUIDPOWERJOURNAL.COM

The Demo Expo’s education program features extensive learning opportunities with leading industry experts on the latest safety, regulatory, operational and technological issues affecting the utility and construction industry.

SHOW OWNER AND PRODUCER

Association of Equipment Manufacturers (AEM)

BACKGROUND

The field demonstration concept was developed in 1964 to help solve an equipment evaluation and communications problem. Illinois Bell invited 12 trencher manufacturers to demonstrate equipment in the same field, on the same day in the summer of 1966. The show was recreated on a more formal basis and continued to grow in 1969 and 1972. Manufacturers of many kinds of equipment from across the country were invited to turn the farmland near Elburn, Illinois, into a productive 3-day utility equipment show. The event moved to DuPage County Fairgrounds for 1975 and 1977, and eventually grew to such a level that Illinois Bell could no longer manage it.

The show was turned over to a professional management firm in 1978 and moved to Kansas City for the 1979 show, and Louisville, Kentucky, starting in 1987. AEM provided industry direction, and in the late 1980s became the show’s owner and producer.

JANUARY/FEBRUARY 2018

45

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Solution to the Test Your Skills on page 35 is b.

ADVERTISER INDEX Company................................................ Page....... Circle Adaconn + Inserta...................................................37.............404 Aggressive Hydraulics.............................................5.............377 Aggressive Hydraulics...........................................37.............405 AGI - American Grippers Inc..................................30.............395 AGI - American Grippers Inc..................................18.............420 Aignep USA.............................................................12.............384 Aignep USA.............................................................19.............424 Alloys and Components.........................................32.............398 Assured Automation.................................................7.............378 Assured Automation...............................................22.............438 CFC Industrial Training............................................27.............391 Clippard Instrument Lab Inc................... Back Cover.............373 Clippard Instrument Lab Inc..................................37.............406 CRS Service Inc.........................................................7.............379 CRS Service Inc.......................................................37.............407 Cyber-Tech Inc...........................................................9.............381 Cyber-Tech Inc.........................................................21.............435 DELTA Computer Systems Inc...............................23.............389 DELTA Computer Systems Inc...............................37.............408 Flange Lock..............................................................17.............387 Flange Lock..............................................................20.............428 Flow Ezy Filters Inc.................................................21.............433 Harrison Hydraulic Solutions.................................22.............436 Honor Pumps U.S.A...............................................39.............402 Honor Pumps U.S.A...............................................21.............432 Hydraulex................................................................ 11.............383 Hydraulex................................................................38.............409 Hydraulics Inc..........................................................30.............396 Hydraulics Inc..........................................................21.............434 Inserta Products......................................................10.............382 Inserta Products......................................................20.............429 Inserta Products......................................................22.............437 Keller America...........................................................3............. 376 Keller America.........................................................19.............426 La-Man Corp............................................................38............. 410 Main Manufacturing Products Inc.........................17.............388 Main Manufacturing Products Inc.........................19.............425 Main Manufacturing Products Inc.........................38............. 411 MOCAP INC.............................................................35.............400 MOCAP INC.............................................................19.............422 OEM Controls Inc....................................................32.............399 OEM Controls Inc....................................................20.............427 Oil-Rite Corp............................................................20.............430 Oil-Rite Corp............................................................38............. 412 PHD Inc....................................................................13.............386 PHD Inc....................................................................21.............431 PHD Inc....................................................................38............. 413 Polyconn..................................................................31.............397 Polyconn..................................................................38............. 414 Power Valve U.S.A..................................................28.............392 Power Valve U.S.A..................................................22.............439 SC Hydraulic Engineering Corp.............................39.............403 SC Hydraulic Engineering Corp.............................19.............423 Sonceboz SA...........................................................25.............390 Super Swivels.........................................................29.............393 Super Swivels.........................................................39............. 415 Vac Cubes................................................................35............. 401 Vac Cubes................................................................18............. 418 VEST Inc...................................................Inside Back............. 374 WEH Technologies Inc...............................................8.............380 WEH Technologies Inc.............................................39............. 416 Yates Industries Inc............................. Inside Front-1.............375 Yates Industries Inc.................................................18............. 419 Yates Industries Inc.................................................39............. 417 Youli-America..........................................................12.............385 Youli-America..........................................................18.............421 Ad • Product Spotlight • Literature Review

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1. Do you specify, select, or influence the purchase of components & systems on new or existing machinery? 03  Yes 04  No If yes, in which technologies? (check all that apply) 05  Hydraulic 06  Pneumatic 07  Vacuum 08  Electronic Controls 09  None of these 2. What is your primary job title? (check all that apply)

10  Administration 13  Technical

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3. Which of the following best describes your market focus?

I  Forestry A  Aerospace J  Furnaces B  Agricultural Machinery K  Gas & Oilfield Machinery C  Automotive L  Heavy Construction D  Civil Engineering & Equipment E  Cranes M  Military Vehicles F  Drills & Drilling Equipment N  Construction & Utility Equipment G  Flame Cutting/Welding O  Machine Tools

Equipment P  Government Related H  Food Machinery 4. Number of employees at this location?

A  1-19

B  20-49

12  Engineering 15  Purchasing

A  Marine & Offshore Equipment B  Material Handling Equipment C  Mining Machinery D  Packaging Machinery E  Plastic Machinery F  Presses & Foundry G  Railroad Machinery H  Road Construction/ Maintenance Equipment

C  50-99

D  100-249

E  250-499

16  Other

I  Simulators & Test Equipment J  Snow Vehicles, Ski Lifts K  Steel Plants & Rolling Mills L  Truck & Bus Industry M  Textile Machinery N  Woodworking Machines O  Other (specify) P  Fluid Power Industry

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7. My Company should be advertising in or submit an article to the Fluid Power Journal. Please contact this person: Name: ___________________________________ Title: _________________________________ Phone: _________________________________ 8. I wish to receive a free subscription to Fluid Power Journal:

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_________________________________________________________________________________________________________________________ Signature Date 9. I would like more information on the following products: (Please check all that apply) 808  Hose & Tubing 805  Filters 800  Accumulators 809  Hydraulic Fluids 806  Gauges & Sensors 801  Accessories 810  Motors 807  Heat Exchangers, 802  Electronic Controls 811  Pumps

Heaters, Aftercoolers, 803  Couplings & Fittings 812  Seals & Packing

Dryers 804  Cylinders 10. I plan on purchasing the above products in the next: 68  0-3 months 69  3-6 months 70  6-9 months

813  Vacuum 814  Valves 815  Software

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5. What is the primary business activity at this location?

In the Fluid Power Industry: 56  Manufacturer 57  Distributor 58  Education Outside the Fluid Power Industry: 59  Original Equipment Manufacturer (OEM) 60  End User of Fluid Power Products

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1. Do you specify, select or influence the purchase of components & systems, on new or existing machinery? 03  Yes 04  No. If yes, which technologies? (check all that apply) 05  Hydraulic 06  Pneumatic 09  None of These 07  Vacuum 08  Electronic Controls 2. What is your primary job title? (check only one) 10  Administration: Chairman, Pres., V.P., Sec., Tres., G.M., Owner,

Bus. Mgr., Dir., etc.

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In the Fluid Power Industry Outside the Fluid Power Industry 56  Manufacturer 57  Distributor 58  Education 59  Original Equipment Manufacturer (OEM) 60  End User of Fluid Power Products 61  Other: (please specify)__________________________________________ 5. Which of the following best describes your market focus?

A  Aerospace A  Marine & Offshore Equipment B  Agricultural Machinery B  Material Handling Equipment C  Automotive C  Mining Machinery D  Civil Engineering D  Packaging Machinery E  Cranes E  Plastic Machinery F  Drills & Drilling Equip.

F  Presses & Foundry G  Flame Cutting/Welding Equip. G  Railroad Machinery H  Food Machinery H  Road Construct/Maint. Equip.

I  Forestry I  Simulators & Test Equipment J  Furnaces J  Snow Vehicles, Ski Lifts K  Gas & Oilfield Machinery K  Steel Plants & Rolling Mills L  Heavy Construction & Equip. L  Truck & Bus Industry M  Military Vehicles M  Textile Machinery N  Construction & Utility Equip.

N  Woodworking Machines O  Machine Tools O  Other (specify)_____________ P  Government Related P  Fluid Power Industry

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SCAN HERE

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