Fluid Power Journal Tech Directory 2012

2012 Tech Directory plug into our company Listing & product Matrix Cutting-Edge Conveying Technology Central Control of Compressors Reduces Energy waste Innovative Designs & Publishing

3245 Freemansburg Avenue , Palmer , PA 18045-7118

Nonprofit Organization US Postage Paid Bolingbrook, IL Permit #323

NEW!

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Keeping American Industries Moving One Cylinder at a time...

Yates supplies high-quality cylinders for virtually all hydraulic and pneumatic applications. If you can put cylinders and manufacturing in the same sentence, chances are Yates has a cylinder. We have experience in a variety of different industries, including: Primary Metal, Machine Manufacturing, Automotive, Plastics, Military/Defense, Aerospace, Wind Power, Solar Power, Battery Power, Aviation, Transportation, Amusement Park, Offshore/Marine (ABS), Food and Drug, Mining, Waste Water Treatment, Shipping (ABS), Paper/Printing.

New Cylinder Manufacturing From a simple display in the heart of the Detroit Auto Show to massive steel mill operations to precision tolerance machine tooling, Yates’ standard and custom designed hydraulic and pneumatic cylinders have powered some of the world’s most prominent processes. The World’s largest companies have relied on Yates for hydraulic and pneumatic cylinders which meet the most demanding specifications.

Cylinder Repair & Remanufacturing Every cylinder that is sent in for repair goes through a comprehensive inspection process to determine the root cause of why the cylinder failed. This value-added inspection process allows us to work closely with our customers to identify a variety of problems.

Small Business Customer Care with Big Business Capabilities Yates Industries offers the perfect balance between big business manufacturing capabilities and small business service values.

Expanded Michigan Facility With the addition of 50,000 square feet of warehouse and manufacturing space, Yates Industries has streamlined its operations to provide faster order fulfillment.

Online Cylinder Configuration Configure hydraulic and pneumatic cylinder specifications in minutes.

To configure your own cylinder visit www.YatesInd.com today.

MEMBER:

Your Cylinder Source ISO 9001:2008 CERTIFIED

Yates Industries South, LLC 3401-J Highway 20 Decatur, AL 35601 ph 256.351.8081 fax 256.351.8571

Yates Industries, Inc. 23050 Industrial Dr. E. St. Clair Shores, MI 48080 586.778.7680 ph 586.778.6565 fax

7 Days - 800.340.6024 After Business Hours Circle 458

contents T e c h d i r e c t o ry 2 0 1 2

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Volume 19

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Issue 9

Departments 04 Notable Words 08 Association News 23 IFPS Certification Spotlight 29 Air Teaser 30

Web Marketplace

31 Tech Directory Listing

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features

07 17 18 20 24 26 44

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38 Tech Directory Matrix 46

Classifieds

Energy-Efficient Hydraulics and Pneumatics Conference Schedule of Events Fluid Power Product Focus: Hydraulically Powered Ride

By G. K. Fling, P.E., CFPS

Which Hydraulic Fluid?

By Brendan Casey, www.HydraulicSupermarket.com

LVIT Sensors and the Future of Proportional Position Sensing in Hydraulic Cylinders

Get Social With Us!

By Les Schaevitz, CEO, Everight Sensors Corp.

Turn It Off!

By Daniel Pascoe, General Manager, Vacuforce, Inc.

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.

Central Control of Compressors Reduces Energy waste

By Eric Bessey, Pneu-Logic Corp.

Implementing Cutting-_Edge Conveying Technology: A How-to Guide

By Pam Ohlemiller, Product Manager, SMC Corp. of America

tech directory 2012

www.fluidpowerjournal.com | www.ifps.org

Fluid Power Journal is the official publication of the International Fluid Power Society

Since 1946, MICO, Incorporated has been redefining braking expertise… consistently innovating to solve OEM equipment challenges.

Our engineers design custom solutions that specifically cater to your equipment, not the other way around. With MICO, you get the highest quality hydraulic components and the confidence of working with an ISO certified company that strives to develop new technology — like the first full-power hydraulic brake system with ABS.

Go ahead and build your equipment. We’ll figure out how to brake it.

Visit mico.com to see how MICO can fulfill your braking needs.

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Innovative Braking and Controls Worldwide mico.com • +1 507 625 6426

Visit us at INTERMAT Hall 5A Stand G011.

Notable Words Publisher 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

What Makes a Superior Educator?

W

hen my son was in elementary school, I always participated in a “walk through” two weeks after each school year began. The purpose, of course, was for me to meet and get to know the people who were in charge of my son’s education. Prior to the visit, I would receive a list of my son’s teachers and a time to visit. Being a precocious child, my son wanted to help me out, so he would put a star next to some of the teachers. When I asked him what the stars meant, he told me the starred teachers were the “good ones.”

After I spent about ten minutes with each of his teachers, I found myself pretty much agreeing with my young son’s assessment. The teachers he starred were interesting to talk to, able to talk about new things they were teaching, and most important, they seemed to be interested in my son and excited about their teaching careers.

I believe that regardless of a student’s age in school or on the job, superb educators possess traits like the ones I observed

By David E. Thun, Power Systems so many years ago in my son’s elementary school. Among the many important traits of educators, here’s a list of what I believe makes a superb educator: • A superb educator has a passion for his or her subject.

That passion often rubs off on students and stimulates them to discover more about a subject.

• A superb educator is committed to the profession and to the development of the whole person, not just the subject matter being taught.

• A superb educator creates an environment in the classroom that encourages skill development. In our professional world, we might call it learning commercial skills. These early-developed traits can help prepare students to face today’s competitive interview environment.

• A superb educator knows how to help students translate book knowledge into outside-world knowledge. If you have an employee who can take a subject or knowledge and practically apply it in a business/customerdriven environment, your employee has probably been exposed to a superb educator.

• A superb educator encourages students to take reasonable risks and make educated decisions based on available information. Many of us have had experience with employees who hesitate to make a decision and are risk-adverse. This comes from not being held accountable in project work—either in the educational setting or on the job. A superb educator provides support to students in a safe environment so that they learn to trust themselves and make accountable decisions.

• A superb educator is not afraid to bring in guest speakers. I believe many of us in our industry have some gems of knowledge to offer a classroom, but seldom are we asked to speak to classes.

Unfortunately, superb educators are often not rewarded for their efforts—either monetarily or through recognition. We should support a structure that monetarily rewards the superb educators as opposed to supporting the status quo. And as employers, I encourage all of us to call and thank the superb educators who have taught and been role models to our best employees. It’s a way to give them a star!

Associate Publisher: Marc Mitchell Editor: Kristine Coblitz Technical Editor: Dan Helgerson, CFPS, CFPAI, CFPJPP, CFPMT, CFPC&C Art Director: Quynh Vo Account Executive: Bob McKinney VP Operations: Lisa Prass Accounting: Donna Bachman, Debbie Clune Publishing Assistant: Sharron Sandmaier Operations Assistant: Tammy DeLong Circulation Manager: Andrea Karges International Fluid Power Society 1930 East Marlton Pike, Suite A-2, Cherry Hill, NJ 08003-2141 Tel: 856-489-8983 | Fax: 856-424-9248 Email: AskUs@ifps.org www.ifps.org 2012 Board of Directors President & Chairperson Patrick J. Maluso, CFPAI, CFPS, CFPMHM Western Hydrostatics, Inc. Immediate Past President Jon Jensen, CFPAI, CFPPS, CFPECS SMC Corporation of America First Vice President Mark Perry, CFPHS - Fitzsimmons Hydraulics Vice President Education Jimmy Simpson, CFPAI, CFPS, CFPMM Nusim Associates Fluid Power Consultant Treasurer Tom Blansett, CFPAI, CFPS, CFPIHT - Eaton Corporation Vice President Membership & Chapter Support Richard Bullers, CFPPS, SMC - Corporation of America Vice President Certification Wayne Farley, CFPAI, CFPMMH - Verizon Vice President Marketing & Public Relations Justin Sergeant, CFPS, CFPMHM - Hydraulic Repair and Design Vice President Educational Foundation Liz Rehfus, CFPE, CFPS - Crafting Solutions, Inc. Directors-at-Large Jean Knowles, CFPE, CFPS - Spencer Fluid Power, Inc. Marti Wendel, CFPE, CFPS - The Paquin Company, Inc. L. David Ruffus, CFPAI, CFPMHT, CFPMHM Georgia Power Company Timothy White, CFPAI, CFPS, CFPECS, CFPMIH, CFPMMH, CFPMIP, CFPMT, CFPMM - The Boeing Company Mike Anderson, CFPS - Motion Industries Bill Jordan, CFPAI, CFPMHM - Altec Industries Rance Herren, CFPSD, CFPECS - National Oilwell Varco Dan Helgerson, CFPS, CFPAI, CFPJPP, CFPMT, CFPC&C Cascade Steel Rolling Mills, Inc. Sam Skelton, CFPAI, CFPPS - SMC Corporation of America D. Dean Houdeshell, PE, CFPAI, CFPE, CFPS, CFPIHT, CFPMHT, CFPMHM - Sauer Danfoss Kenneth Dulinski, CFPAI, CFPECS, CFPHS, CFPMIH, CFPMMH - Eaton Corporation Honorary Directors Robert Firth Raymond Hanley, CFPE/AI-Emeritus John Groot, CFPPS Robert Sheaf, CFPAI, CFPE, CFPS, CFPECS, CFPMT, CFPMIP, CFPMMH, CFPMIH, CFPMM IFPS Staff Executive Director: Donna Pollander Certification Manager: Sue Tesauro Communications Manager: Adele Kayser Membership Coordinator: Sue Dyson Certification Coordinator: Connie Graham Certification Coordinator: Diane McMahon Administrative Assistant: Beth Borodziuk Bookkeeper: Diane McMahon 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, Off-Highway Suppliers Directory, Tech Directory, and Manufacturers Directory, by Innovative Designs & Publishing, Inc., 3245 Freemansburg Avenue, Palmer, PA 180457118. 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

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tech directory 2012

www.fluidpowerjournal.com | www.ifps.org

advertising material and will not guarantee the return or safety of unsolicited art, photographs or manuscripts.

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Energy Efficient Hydraulics and Pneumatics Conference November 27-29, 2012 Chicago Marriott O’Hare, Rosemont, IL

Hosted by the International Fluid Power Society (IFPS), the FPDA Motion and Control Network (FPDA), and the National Fluid Power Association (NFPA)

Saving energy and money with fluid power Fluid power (hydraulics and pneumatics) is used in dozens of industries and hundreds of applications to precisely control the movement of machinery and material. Yet many engineers and technicians working in those industries do not fully understand the design concepts critical to developing efficient fluid power systems and the diagnostic and maintenance techniques essential to keeping those systems operating at peak efficiency. These concepts and techniques can result in significant energy and cost savings for companies that use hydraulics or pneumatics, as well as for the customers they serve, making fluid power a more competitive technology choice.

The conference will offer: ● Facilitated roundtable discussions, where peers can share specific challenges associated with their industry and applications, and get expert advice from the facilitators. ●

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To help companies take advantage of these opportunities, three leading fluid power organizations— the International Fluid Power Society, the FPDA Motion and Control Network, and the National Fluid Power Association—will be hosting an educational conference at the Chicago Marriott O’Hare in Rosemont, IL on November 27-29, 2012. Professionals responsible for designing and/or maintaining hydraulic and pneumatic systems in industrial settings or mobile applications should plan to attend.

●

Breakthrough presentations from fluid power component manufacturers, distributors, and system integrators, showcasing innovative approaches and emerging technologies in energy efficient fluid power design and maintenance.

Workshops designed to communicate the current best practices for maximizing energy efficiency and balancing cost issues for hydraulic and pneumatic systems.

A full-day seminar on November 27, the Fundamentals of Compressed Air Systems. This hands-on training session, conducted by the Compressed Air Challenge, will show participants how to calculate and reduce the costs of compressed air in their industrial facilities and how to gain better control of compressed air for optimum reliability and productivity.

Networking events to help participating engineers and technicians engage with technology providers from fluid power manufacturing and distribution companies.

For all the details and how to register, go to www.nfpa.com/Events/EEHPC.htm.

Energy-Efficient Hydraulics and Pneumatics Conference Schedule of Events Tuesday, November 27, 2012

2:40 pm to 2:50 pm

Break

8:00 am to 5:00 pm

2:50 pm to 4:00 pm

Workshops (cont.)

4:00 pm to 5:00 pm

Round-Table Discussion “Round-Up”

6:30 pm to 9:00 pm

Reception and Dinner

Thursday, November 29, 2012 7:30 am to 8:30 am

Breakfast Served

Wednesday, November 28, 2012

8:30 am to 12:30 pm

7:30 am to 8:30 am

Breakfast Served

8:15 am to 9:00 am

Opening Remarks Pat Maluso, IFPS President Estimating the Impact (Energy, Emissions, and Economics) of the U.S. Fluid Power Industry Lonnie Love, Oak Ridge National Laboratory

Interactive Workshops: Applying Practical Techniques for Energy-Efficient Fluid Power Systems Room A - Pneumatic • Tricks to Using the Least Amount of Air Jon Jensen and John Martin, SMC Corp. of America • Idol Mode Savings - TBD Room B - Hydraulic • Applying Present Technologies and Practical Techniques for Developing Energy-Efficient Hydraulic Systems Ernie Parker, Hennepin Technical College Room C - Hydraulic • How to Demonstrate the Return on Investment Energy-Efficient Design Dan Helgerson, Cascade Steel Rolling Mills; Steven Zumbusch, Eaton Corp.

6:00 pm to 8:00 pm

The Fundamentals of Compressed Air Systems Separate registration fee applies. This hands-on training session, conducted by the Compressed Air Challenge, will show participants how to calculate and reduce the costs of compressed air in their industrial facilities and how to gain better control of compressed air for optimum reliability and productivity.

Welcome Reception and Networking

9:00 am to 10:15 am

Round-Table Discussions: Sharing Information to Solve Real-World Problems

10:15 am to 10:30 am

Break

10:30 am to 12:30 pm

Breakthrough Presentations: Products and Practices for Increasing Energy Efficiency Room A - Pneumatic • Measuring Energy Usage at System and Component Level Panelists: John Berninger, Parker Hannifin Corp.; Rod Smith, Compressed Air Best Practices; Bill Scales, Scales Industrial Technologies; Aleksandr Shmushkin, SMC Corp. of America Room B - Hydraulic • Cartridge Valve and Manifold Technologies Kevin Cochran, Sun Hydraulics Corp.

• Secondary Control of Hydrostatic Transmissions Michael Teuteberg, Bosch Rexroth Room C - Hydraulic • New Energy-Saving Technologies for the Mobile Equipment Industry” Panelists: Bryan Nelson, Caterpillar, Inc.; Jeff Herrin, Sauer Danfoss; Steven Zumbusch, Eaton Corp.; Paul Michael, Milwaukee School of Engineering

12:30 pm to 1:30 pm

Networking Lunch

1:30 pm to 4:00 pm

Workshops: Designing, Building, and Maintaining Energy-Efficient Machines with Fluid Power Room A - Pneumatic • Designing and Building a Machine for Energy Efficiency (and Convincing the Customer That It’s Worth It!) Terry Zarnowsky, Schneider Packaging Equipment Co. • When Is It More Efficient to Use Electric Actuators and When Are Pneumatics Better?

Gil Guajardo, Bimba Manufacturing Co. Room B - Industrial Hydraulic • Methods and Tools to Identify, Analyze, Compare, and Reduce Energy Losses in Industrial Hydraulic Systems Paul Smith, Eaton Corp.

• Variable Frequency Drives as Pump Prime Movers Dr. Gerd Scheffel, Parker Hannifin Corp.

Room C - Mobile Hydraulic • Fan Drives in Mobile Hydraulic Systems Matt Kronlage, Turolla OpenCircuitGear™ (Member of the Sauer-Danfoss Group) • Saving Energy with Hydro-Mechanical Transmissions Michael Cronin, Caterpillar, Inc.

12:30 pm to 1:30 pm

Lunch Served

THE FUTURE OF ENERGY-EFFICIENT FLUID POWER An afternoon program designed to inform and engage conference participants in a discussion about the future direction of energy-efficient fluid power.

12:50 pm to 1:00 pm

Opening Remarks Eric Lanke, NFPA CEO

1:00 pm to 1:20 pm

Research Directions and Projects from the Center for Compact and Efficient Fluid Power (CCEFP) Kim Stelson, Director, CCEFP

1:20 pm to 1:40 pm

Additive and Emerging Manufacturing Technologies and Their Impact of Fluid Power Components and Systems Lonnie Love, Oak Ridge National Laboratory

1:40 pm to 2:20 pm

Future Technology Focus – Displacement Control Actuation Monika Ivantysynova, Purdue University Panel: TBD

2:20 pm to 2:30 pm

Introduction of Breakout Discussions Eric Lanke, NFPA CEO

2:30 pm to 2:40 pm

Break

2:40 pm to 3:40 pm

Breakout Discussions: Market Needs and New Technologies Room A - Pneumatic • Discussion Leaders: Jon Jensen, SMC Corp. of America Room B - Industrial Hydraulic • Discussion Leaders: Kim Stelston, CCEFP; TBD Room C - Mobile Hydraulic • Discussion Leaders: Monika Ivantysynova, Purdue University; Chris Beaudin, Caterpillar

3:40 pm to 3:50 pm

Break

3:50 pm to 4:20 pm

Reports from Discussion Groups

4:20 pm to 4:30 pm

Closing Remarks Eric Lanke, NFPA CEO

www.ifps.org | www.fluidpowerjournal.com

tech directory 2012

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association news

IFPS – International Fluid Power Society

IFPS Newly Certified Professionals David Adair, MHM Altec Industries, Inc.

Timothy Greggerson, MHM El Paso Electric Co

Justin Pollock, HS Power Hydraulics

Mike Barnett, MHM El Paso Electric Co

Randy Hamilton, MHM North American Hydraulics, Inc.

Omar Reyes, MHM El Paso Electric Co

Jeff Beck, MHM Dawson Public Power District

Kevin Johnson, S, PS Oldenburg Group, Inc.

Sean Ritter, CC Pirtek Plymouth

Kevin Berg, MHM Altec Industries, Inc.

Jeff Jones, MHM American Electric Power Co.

Edwin Rybarczyk, Jr., CC E. R. Consultants, Inc.

Jorge Castro, MHT El Paso Electric Co

Matthew Kemper, CC Pirtek USA

Scott Spence, PS Allied Automation, Inc.

Jason Coolick, MHM Parker Hannifin Corporation

Scott LaClair, CC Pirtek Midway

Stephen Spradling, MHM Altec Industries, Inc.

Jason Cushion, MHM El Paso Electric Co

Michael LeBlanc, MHM Altec Industries, Inc.

Nathan Staples, PS Skarda Equipment Co.

Jorge Garay, MHM El Paso Electric Co

Joseph McIsaac, HS HYDAC Canada

Jeremy Taulman, MHM Altec Industries, Inc.

Kevin Gehringer, MHM TC Hydraulic Solutions

Harry Millan, Jr., HS

Mark Giorgio, CC Pirtek USA Jose Goas, HS

Certification Levels Available

Phillip Greenwood, MHM

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Joe Miller, MHM Kanamak Hydraulics Inc.

Updated Study Manuals In a continuing effort to keep IFPS certification offerings on the cutting edge with changing fluid power and motion control technologies, panels of certified subject matter experts have been hard at work updating many of the IFPS certification study manuals. IFPS members can download study manuals free of charge; non-members may purchase.

The following study manuals and tests have been reviewed and released: • Released August 2012 - Mobile Hydraulic Mechanic and Technician • Industrial Hydraulic Mechanic • Industrial Hydraulic Technician • Pneumatic Mechanic • Pneumatic Technician

t

Online Pretests Available for all IFPS Certification Tests IFPS wants you to succeed in your efforts to achieve certification, so it has revamped its online pretests to include all IFPS certification levels. If you would like to test your skill level, visit the “Certification” tab of www.ifps.org and click on “Prepare for a Test.” Online pretests are available 24/7 and available to IFPS members and non-members alike.

Matt Miller, HS Spokane Community College Jacob Paulsen, MHM El Paso Electric Co

CFPAI Certified Fluid Power Accredited Instructor

CFPPS Certified Fluid Power Pneumatic Specialist

CFPMHT Certified Fluid Power Mobile Hydraulic Technician

CFPAJPP Certified Fluid Power Authorized Job Performance Proctor

CFPECS Electronic Controls Specialist

CFPPT Certified Fluid Power Pneumatic Technician

CFPAJPPCC Certified Fluid Power Authorized Job Performance Proctor Connector & Conductor CFPE Certified Fluid Power Engineer CFPS Certified Fluid Power Specialist (Must Obtain CFPHS, CFPPS) CFPHS Certified Fluid Power Hydraulic Specialist

tech directory 2012

CFPMEC – in development Mobile Electronic Controls CFPIEC – in development Industrial Electronic Controls CFPMT Certified Fluid Power Master Technician (Must Obtain CFPIHT, CFPMHT, & CFPPT) CFPIHT Certified Fluid Power Industrial Hydraulic Technician

Download

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 CFPPM Certified Fluid Power Pneumatic Mechanic

www.fluidpowerjournal.com | www.ifps.org

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

NEW!

association news

IFPS – International Fluid Power Society

2012 / 2013 Dates Visit www.ifps.org for registration information.

Meetings and Conferences Energy-Efficient Hydraulics and Pneumatics Conference

November 27-29, 2012 Chicago Marriott O’Hare Airport Hotel Rosemont, IL

2013 IFPS 2013 Spring Meeting

February 27 - March 2, 2013, San Antonio, TX

IFPS 2013 Annual Meeting

September 25 - 28, 2013, Location TBD

HS and PS certification review and testing offered through CFC-Solar, Inc. Live Distance LearningOctober 2012 HS Review and testing offered through Eaton Corp. – December 11-13, 2012 / Eden Prairie, MN Industrial Hydraulic Mechanic (IHM) certification Review and Test

IHM certification review and testing offered through CFC-Solar, Inc. Review October 27, 2012 Written and Job Performance test: October 28, 2012

Certification Review Training

Electronic Controls Specialist (ECS) Review and Test

Connector & Conductor (CC) Review w/ Job Performance Test

ECS certification review and testing offered through CFC-Solar, Inc. Review and Written Test: October 5, 2012

CC certification review and testing offered through Pirtek USA – October 24, 2012 Job Performance and written test: October 25, 2012 Hydraulic Specialist (HS) certification Review and Test

Job Performance Review With Test (Mechanic & Technician)

Job Performance review (hands-on only) offered through IFPS Chapter 49, Orlando, FL

Review: October 18-19, 2012 Job Performance Test: October 20, 2012 Job Performance review (hands-on only) offered through CFC-Solar, Inc. – Fairfield, OH Review: October 4-5, 2012 Job Performance Test: October 5, 2012

New - Live Distance Learning Job Performance Station Reviews. E-mail CFC-Solar, Inc. (info@cfc-solar.com) for information.

Web Seminars “Pumps, Controls & Where To Set The Relief”

1-hour web seminar October 11, 2012, 12:00 noon – 1:00 p.m. EST Presented by: Bill Hotchkiss, CFPAI, SunSource “Accumulator In Hydraulic System”

1-hour web seminar December 5, 2012, 12:00 noon – 1:00 p.m. EST Presented by: Jim Lane, CFPAI, Motion Industries, Inc.

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tech directory 2012

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association news

IFPS – International Fluid Power Society

IFPS Certification Testing Locations Individuals wishing to take any IFPS written certification tests are able to select from approximately 325 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 an IFPS 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 any locations listed below are as follows: October 2012 Tuesday, 10/2 Thursday, 10/18

November 2012 Tuesday, 11/6 Thursday, 11/15

December 2012 Tuesday, 12/4 Thursday, 12/20

January 2013 Tuesday, 1/2 Thursday, 1/17

February 2013 Tuesday, 2/5 Thursday, 2/21

March 2013 Tuesday, 3/5 Thursday, 3/21

April 2013 Tuesday, 4/2 Thursday, 4/18

If you have any questions, please call IFPS headquarters at 800-308-6005 or e-mail Connie Graham at cgraham@ifps.org.

ALASKA University of Alaska Anchorage Anchorage, AK ALABAMA Alabama A&M University Normal, AL Jacksonville State University Jacksonville, AL University of AL in Huntsville Huntsville, AL ARKANSAS Northwest Arkansas Community College | Bentonville, AR ARIZONA Arizona State University Tempe, AZ Arizona Western College Yuma, AZ Coconino Community College Flagstaff, AZ

Daytona State College Daytona Beach, FL

National Test Center San Diego, CA

Florida Atlantic University Boca Raton, FL

National University San Diego, CA

Florida Gulf Coast University Ft. Myers, FL

Santa Rosa Junior College Santa Rosa, CA

Florida Memorial University Miami Gardens, FL

Skyline College San Bruno, CA

Florida Southern College Lakeland, FL

The Taft University System Santa Ana, CA

Hillsborough Community College Plant City, FL

UC San Diego Extension San Diego, CA

Indian River State College Fort Pierce, FL

University of California Irvine, CA

Open Campus Florida Community College at Jacksonville, FL

Yuba Community College Marysville, CA

Polk State College Winter Haven, FL

Eastern Arizona College Thatcher, AZ

Santa Fe Community College Gainesville, FL

Glendale Community College Glendale, AZ

Community College of Denver Denver, CO

University of Florida Gainesville, FL

Mesa Community College Mesa, AZ

Fort Lewis College Durango, CO

University of South Florida Tampa, FL

Northern Arizona University Flagstaff, AZ

Front Range Community College Larimer Campus | Ft. Collins, CO

Valencia Community College Orlando, FL

Paradise Valley Community College Phoenix, AZ

Pikes Peak Community College Colorado Springs, CO

GEORGIA Albany State University Albany, GA

Pima Community College Tucson, AZ

Pueblo Community College Pueblo, CO

Rio Salado College Tempe, AZ

University of Colorado at Boulder Boulder, CO

CALIFORNIA Allan Hancock College Santa Maria, CA

University of Northern Colorado Greeley, CO

California Polytechnic State University San Luis Obispo, CA

Yale University New Haven, CT

Darton College Albany, GA

DELAWARE Delaware State University Dover, DE

Georgia Gwinnett College Lawrenceville, GA

Chapman University Orange, CA Foothill College Los Altos Hills, CA Fullerton Community College Fullerton, CA Irvine Valley College Irvine, CA

tech directory 2012

Valdosta State University Valdosta, GA

Indiana University Indianapolis, IN

INDIANA

LOUISIANA Bossier Parish Community College Bossier City, LA

BYU-Hawaii Laie, HI

Ivy Tech Community College Bloomington | Bloomington, IN

University of Louisiana at Monroe Monroe, LA

IOWA Hawkeye Community College Waterloo, IA

Ivy Tech Community College Columbus | Columbus, IN

Nicholls State University, Thibodaux, LA

Ivy Tech Community College Evansville | Evansville, IN

University of New Orleans New Orleans, LA

Ivy Tech Community College Gary | Gary, IN

MARYLAND Anne Arundel Community College Arnold, MD

HAWAII

University of Iowa Iowa City, IA Wartburg College Waverly, IA Western Iowa Community College Sioux City, IA IDAHO

COLORADO Community College of Aurora Aurora, CO

California State University, Fresno Fresno, CA

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La Sierra University Riverside, CA

Boise State University Boise, ID Brigham Young University Rexburg, ID College of Southern Idaho Twin Falls, ID Eastern Idaho Technical College Idaho Falls, ID Lewis-Clark State College Lewiston, ID University of Idaho Moscow, ID ILLINOIS

Clayton State University Morrow, GA Columbus State University Columbus, GA Columbus Technical College Columbus, GA

CONNECTICUT

Delaware Technical and Community College Georgetown, DE University of Delaware Newark, DE FLORIDA Brevard Community College Cocoa, FL

Georgia Southern University Statesboro, GA Georgia State University Atlanta, GA University of Georgia Athens, GA University of West Georgia Carrollton, GA

College of DuPage Glen Ellyn, IL College of Lake County Grayslake, IL Illinois State University Normal, IL John A. Logan Community College Carterville, IL Lincoln Land Community College Springfield, IL Northern Illinois University De Kalb, IL

Ivy Tech Community College Indianapolis | Indianapolis, IN Ivy Tech Community College Kokomo | Kokomo, IN Ivy Tech Community College Lafayette | Lafayette, IN

Ivy Tech Community College Madison | Madison, IN

Harford Community College Bel Air, MD

Ivy Tech Community College Muncie | Muncie, IN

Hagerstown Community College Hagerstown, MD

Ivy Tech Community College Richmond | Richmond, IN

Howard Community College Columbia, MD

Ivy Tech Community College Sellersburg | Sellersburg, IN

University of Maryland College Park, MD

Ivy Tech Community College South Bend | South Bend, IN

MASSACHUSETTS North Shore Community College Danvers, MA

Ivy Tech Community College Terre Haute, IN

University of Massachusetts Boston, MA

Purdue University West Lafayette, IN KANSAS Johnson County Community College | Overland Park, KS Kansas State University Manhattan, KS

Richland Community College Decatur, IL

Wichita State University Wichita, KS

Rock Valley College Rockford, IL

KENTUCKY University of Louisville Louisville, KY

www.fluidpowerjournal.com | www.ifps.org

College of Southern Maryland La Plata, MD Frederick Community College Frederick, MD

University of Kansas Lawrence, KS

Waubonsee Community College Sugar Grove, IL

Chesapeake College Wye Mills, MD

Ivy Tech Community College Lawrenceburg Lawrenceburg, IN

Parkland College | Champaign, IL

University of Illinois at Urbana Champaign, IL

Carroll Community College Westminster, MD

Western Kentucky University Bowling Green, KY

MICHIGAN Baker College Online Flint, MI Delta College University Center, MI Ferris State University Big Rapids, MI Henry Ford Community College Dearborn, MI Kalamazoo Valley Community College Kalamazoo, MI Lake Superior State University Sault Ste. Marie, MI Lansing Community College Lansing, MI

Macomb Community College Warren, MI

Southeast Community College Lincoln, NE

RCC-SOU Higher Education Center Medford, OR

Southern Methodist University Dallas, TX

Michigan State University East Lansing, MI

NEW JERSEY Brookdale Community College Lincroft, NJ

Southwestern Oregon Community College | Coos Bay, OR

Texas A&M International University Laredo, TX

Schoolcraft College Livonia, MI

University of Oregon Eugene, OR

Gloucester County College Sewell, NJ

Southwestern Michigan College Dowagiac, MI Washtenaw Community College Ann Arbor, MI MINNESOTA Minnesota State University, Mankato | Mankato, MN University of Minnesota Twin Cities | Minneapolis, MN University of Minnesota Morris, MN MISSOURI Avila University Kansas City, MO Metropolitan Community College-Penn Valley Kansas City, MO

Texas A&M University College Station, TX

Mercer County Community College West Windsor, NJ

PENNSYLVANIA Bucks County Community College Newtown, PA

Texas A&M University-Commerce Commerce, TX

Raritan Valley Community College Somerville, NJ

HACC Gettysburg Campus Gettysburg, PA

Texas Tech University Lubbock, TX

NEW MEXICO Eastern New Mexico University Portales, NM

Harrisburg Area Community College Harrisburg, PA

Tyler Jr. College Tyler, TX

Harrisburg Area Community College York Campus | York, PA

University of Houston Houston, TX

Harrisburg Area Community College-Lancaster Campus Lancaster, PA

University of Texas Brownsville Brownsville, TX

SOUTH CAROLINA Coastal Carolina University Conway, SC

University of Texas at Arlington Arlington, TX

San Juan College Farmington, NM NEVADA College of Southern Nevada Charleston Campus Las Vegas, NV College of Southern Nevada Cheyenne Campus North Las Vegas, NV

Horry-Georgetown Technical College | Conway, SC

University of Texas El Paso El Paso, TX Victoria College Victoria, TX

Missouri Western State University St.Joseph, MO

College of Southern Nevada Green Valley Campus Henderson, NV

Midlands Technical College Columbia, SC

Southeast Missouri State University Cape Girardeau, MO

College of Southern Nevada Henderson Campus, NV

Orangeburg Calhoun Technical College | Orangeburg, SC

St. Charles Community College Cottleville, MO

NEW YORK Brooklyn College - CUNY Brooklyn, NY

Piedmont Technical College Greenwood, SC

Brigham Young University Provo, UT

Spartanburg Community College Spartanburg, SC

Davis Applied Technology College Kaysville, UT

Technical College of the Lowcountry | Beaufort, SC

Salt Lake Community College Salt Lake City, UT

Trident Technical College Charleston, SC

Utah Valley State College Orem, UT

Weatherford College Weatherford, TX UTAH

State Fair Community College Sedalia, MO

Rochester Institute of Technology Rochester, NY

Three Rivers Community College Poplar Bluff, MO University of Central Missouri Warrensburg, MO Webster University | St. Louis, MO MISSISSIPPI Holmes Community College Goodman Campus | Goodman, MS Mississippi State University Mississippi State, MS University of Mississippi University, MS MONTANA Montana State University Bozeman, MT The University of Montana Missoula, MT NORTH CAROLINA East Carolina University Greenville, NC Fayetteville State University Fayetteville, NC Guilford Technical Community College | Jamestown, NC Mount Olive College Mount Olive, NC

OHIO Central Ohio Tech College OSU-Newark | Newark, OH Columbus State Community College Columbus, OH Franklin University Columbus, OH Rhodes State College Lima, OH The Ohio State University Columbus, OH The University of Toledo Toledo, OH University of Akron Akron, OH OKLAHOMA Northern Oklahoma College Tonkawa, OK Oklahoma State University Stillwater, OK Oklahoma State University-Tulsa Tulsa, OK University of Central Oklahoma Edmond, OK University of Oklahoma Norman, OK

North Carolina Central University Durham, NC The University of North Carolina Wilmington, NC NORTH DAKOTA Bismarck State College Bismarck, ND North Dakota State University Fargo, ND

OREGON Central Oregon Community College Bend, OR Clackamas Community College Oregon City, OR Mt. Hood Community College Gresham, OR Portland Community College Rock Creek | Portland, OR

NEBRASKA Bellevue University Bellevue, NE

York Technical College Rock Hill, SC TENNESSEE East Tennessee State University Johnson City, TN Middle Tennessee State University Murfreesboro, TN Southern Adventist University Collegedale, TN Tennessee State University Nashville, TN The University of Memphis Memphis, TN Walters State Community College Morristown, TN TEXAS Abilene Christian University Abilene, TX Austin Community College Austin, TX Eastfield College Mesquite, TX El Paso Community College El Paso, TX Grayson County College Denison, TX Lamar Institute of Technology Beaumont, TX Midwestern State University Wichita Falls, TX

VIRGINIA Old Dominion University Norfolk, VA WASHINGTON Central Washington University Ellensburg, WA Olympic College Bremerton, WA Western Washington University Bellingham, WA WISCONSIN Lakeshore Technical College Cleveland, WI Marian University of Fond du Lac Fond du Lac, WI University of Wisconsin Oshkosh Oshkosh, WI University of Wisconsin-Milwaukee Milwaukee, WI WYOMING University of Wyoming Laramie, WY CANADA Lethbridge College Lethbridge, AB Canada Saskatchewan Institute of Applied Science and Technology Saskatchewan, Canada Thompson Rivers University Kamloops, BC Canada

Sam Houston State University Huntsville, TX

Portland State University Portland, OR

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association news

FPEF – Fluid power educational foundation

“∆P—Nothing Happens Without It!”

W

hen asked for the most important aspect of working with and training summer interns, John Carr, president of Perfection Servo Hydraulics in Batavia, Ill., made the statement: “Make sure that they already know: ‘∆P—Nothing happens without it.’ If the students understand that principle coming in, then their internships will be a success!”

By all accounts, the initial summer internship partnership between Perfection Servo Hydraulics and Northwest State Community College of Archbold, Ohio, has been a complete and unanimous success! When asked about his internship experience this summer, John Weaver enthused: “Absolutely great! It was an eye-opener to be actually in industry and to see the bookwork come to life. After some experience, I feel a lot more comfortable.”

When asked to tell the FPEF the best part of the internship this summer, Brad Wagner responded: “the experience you get from learning how to put together all the pumps; it helps a lot! All the bookwork helps us to recognize what we are doing as we do the hands-on part.”

Started in a small industrial building in Addison, Ill., in 1979, Perfection Servo now has over 30 years’ experience in the remanufacturing and repairing of both hydraulic and electronic components for the many OEMs who use fluid power products in their businesses. Perfection has developed an in-depth series of procedures to catalog, evaluate, estimate, repair, test, and return-ship the customer’s equipment with the highest quality craftsmanship. Perfection is concerned about every customer they service as well as every employee. It is their belief that the culture their founders created is the principal reason for Perfection Servo’s success.

Perfection decided to initiate this pilot internship program when they found that locating and attracting students with a solid background in fluid power led them directly to FPEF Key Schools. Interns this summer have served Liz Rehfus, FPEF chair, poses with John Carr (left), at the company for nine Perfection Servo’s president, and Brian Carr (right), general manager. weeks, which included four different work rotations. Each intern spent four days per week for three weeks each in preparation, teardown, and test areas. In addition, each intern spent one day per week paired with an experienced hydraulic repair technician.

Perfection Servo generously provided a rooming stipend for each student as well as paid them for their 40-50 hours of work each week. In this way, unlike many other internship programs, a thrifty intern could come away from the summer experience with some money saved—money to pay for the next semester’s tuition fees, for example.

Perfection Servo’s customers, while nationwide, are primarily hydraulic and electro-hydraulic users. According to Brian Carr, general manager, “our customers are approximately 90% users,” but Perfection is seeing a rapid increase in the numbers of electronic controls and human-machine interfaces being sent in for repair.

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tech directory 2012

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www.fluidpowerjournal.com | www.ifps.org SUNFAB 2-09 ad.indd 1

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FPEF – Fluid power educational foundation

association news

(Top) Perfection Servo hydraulics staff and the two summer interns from Northwest State Community College in 2012. From left to right: Mark Robie, vice president/owner; Dean McCullough; Brad Wagner (intern); Karen Hossfeld, human resources manager; John Weaver (intern); John Carr, president/owner; Jose Hernandez; and Brian Carr, general manager (Right) From left: Brad Wagner (intern); Daniel Burklo, dean of engineering technology; Thomas Bowes, coordinator of industrial technology; Steven Dick, lead fluid power instructor; and John Weaver (intern).

in obtaining their education, and Perfection Servo hopes to expand the program in In a recent fact-finding visit to Perfection Servo to gauge the progress and success the future. Karen Hossfeld, human resources manager for Perfection, noted that of the inaugural internship program, Liz Rehfus, FPEF chair, was joined by Jimmy the two students fit in so well and so quickly with the other employees that “they Simpson, FPEF vice chair; Dan Burklo, dean of engineering technologies for Northwere recruited for the intramural softball team” at the company picnic this summer. west State; and Steven Dick, instructor of engineering technology at Northwest State.

The interns were able to “get a feel for how the industry really works,” according Burklo asked what Northwest State could do to improve the quality of the stuto John Carr, president. Their program was designed to make certain that each intern dents coming from their institution. Jose Hernandez, Perfection’s hydraulic shop worked with several different people at Perfection and in many different departments. manager who took the lead role in coordinating the students’ internship experience, Jose Hernandez explained that no “special” work was created for the interns. They noted that a bit more exposure to hands-on work such as teardown and rebuild were included in regular rebuild and teardown projects as part of the standard workprior to their internships would be helpful. flow at Perfection, working under the direction of hydraulic technicians.

Professor Steven Dick mentioned that many of Northwest State’s students parThe internship program at Perfection Servo has been an outstanding success, and ticipate in a co-op educational program, where they attend school every other all parties hope to develop it further in the coming months. semester so that they are able to work and earn the money to attend during the For more visit FPEF's website at www.fpef.org or call 856-424-8998. alternate semesters. This internship program is yet another way to assist students AMETEKAPT10017-R_eBrick-7.625x4.875_FPJ_APT10017 09/11/12 10:30 AM Pageinformation, 1

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13

association news

CCEFP – The Center For Compact And Efficient Fluid Power

Members Visit Renewable Energy Research Site CCEFP research members took a tour of the University of Minnesota’s West Central Research and Outreach Center’s (WCROC) renewable energy facilities located on the UM-Morris campus. Featured on the tour were the combined heat and power biomass gasification systems, biomass combustion system, anaerobic methane digestor, renewable hydrogen and anhydrous ammonia systems, as well as the WCROC’s 1.65-MW wind turbine.

The WCROC is part of the University of Minnesota College of Food, Agricultural, and Natural Resource Sciences and celebrated its 100-year anniversary in 2010. In 2004, the University of Minnesota commissioned the Renewable Energy Research and Demonstration Center (RERDC) at the WCROC. The RERDC hosts a variety of renewable energy projects with the dual purpose of generating greater knowledge about renewable energy production and educating the public about energy alternatives to fossil fuel sources.

CCEFP Welcomes Visitors from Idemitsu Kosan Earlier this year, representatives of Idemitsu Kosan visited the University of Minnesota campus to meet the CCEFP leadership team. Attending the visit on behalf of Idemitsu were Toshiyuki Tsubouchi (Advanced Research Laboratories), Jitsuo Shinoda (Lubricants Research Laboratory), Hideo Kamimura and Laura DeNe(Top) CCEFP faculty, staff, and students at the West Coast ve (both of Idemitsu Lubricants America).

Research and Outreach Center The Idemitsu delegation gave a presentation (Left) Idemitsu Kosan visitors and CCEFP leadership team on the company’s history and products.

CCEFP leadership provided an overview of the Center and information about the extensive research program. Following lunch at the University Campus Club overlooking the East Bank campus, the visitors were given a tour of the research facilities, met with various faculty members, and ended the day by enjoying dinner at the Origami Restaurant in downtown Minneapolis.

EDUCATION AND OUTREACH NEWS 2012 Fluid Power Scholars and REU Program Wrap Up |

(Top) 2012 Fluid Power Scholars (Bottom) 2012 Research Experiences for Undergraduates

14

tech directory 2012

by Alyssa Burger, Outreach Director, University of Minnesota

The CCEFP’s Education and Outreach Program concluded another summer of exciting activities including the 2012 Fluid Power Scholars Program and the 2012 Research Experiences for Undergraduates (REU) program.

The Fluid Power Scholars (FPS) Program is a collaborative effort between the CCEFP and corporate members of the Center. This program identifies and connects outstanding undergraduate engineering students with the fluid power industry for the purpose of training the next generation of fluid power leaders by offering a three-day fluid power boot camp followed by a summer internship within the company. 2012 is the program’s third year. This summer, the Center named nine scholars.

The Center thanks the internship host companies for their support: Case New Holland, Parker Hannifin Corp., Sun Hydraulics, HUSCO International, Caterpillar, John Deere, Deltrol Fluid Products, Eaton Corp., and Sauer-Danfoss.

The Scholars Program has been quite a success: 67% of all scholars found full-time work in the fluid power industry and 50% remain within their host companies.

The Research Experiences for Undergraduates (REU) Program’s goal is to provide undergraduate science and engineering students with a summer experience in a university research lab. An objective of the program is to increase the number of top students applying to graduate school in science and engineering areas.

The Center hosted 23 REU students to the 2012 program. For the second time, the program kicked off with a fluid power boot camp at Purdue University, lead

by CCEFP graduate students, all REU students in attendance. The boot camp provided an opportunity for the Center to fully prepare REUs in fluid power technology for their summer research experience. * Reprinted from the CCEFP Spring/Summer 2012 newsletter (Issue 18)

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association news

CCEFP – The Center For Compact And Efficient Fluid Power

RESEARCH NEWS Multifunctional Fluid Power Components Using Engineered Structures and Materials (Project 2D)

By Douglas Cook, Research Engineer, Milwaukee School of Engineering

Conventional engineered systems involve many components, each serving a single purpose: bearing stress, dissipating heat, attenuating noise, shielding, etc. Integration of multifunctional components into the system can reduce the complexity by reducing the number of parts.

If a new component is able to bear mechanical load and serve as a heat sink, then that one component replaces two conventional designs, thereby improving compactness.

Component integration also translates into a reduction in the number of energy transfers, hence an increase in system efficiency.

Waste heat is the product of inefficiency, which all power systems have, and as Dr. Kim Stelson (CCEFP director) has previously noted, the average efficiency of today’s fluid power systems is 21%. On average, then, more than 75% of the energy into the conventional system is converted to heat! Power systems are sensitive to their operating conditions, so if the system gets too hot or cold, its efficiency drops—20% over 55ºC as measured

by Evonik RohMax. Maintaining the optimal operating temperature through thermal management is a crucial aspect of component integration for achieving maximum efficiency. Add-on active cooling (or heating) reduces system compactness and still detracts from the optimal.

Project 2D, “Multifunctional Fluid Power Components Using Engineered Structures and Materials,” has collaborated with Test Bed 6 on the development of the portable, active, ankle-foot orthosis. As with all test beds in the Center, the human-assistive orthosis will use fluid power as the driving force. One of the unique design constraints, however, is that the device will be in direct contact with a person. Not only must this system be structurally optimized for minimal weight, it must also employ efficient thermal management that maintains an optimal operating temperature while limiting contact surface temperatures for personal safety (< 41ºC as mandated by the FDA)—making it safe to wear and touch throughout the intended one-hour operating period. To this end, Project 2D has designed and fabricated an integrative, lightweight, multifunctional structure that will enclose the power, i.e. heat, source to protect the wearer and employ passive cooling to maintain an optimal operating temperature without detracting from the system efficiency.

To achieve this, Project 2D is leveraging its past work that defined lattices as lightweight structural materials for components. In Year 5 of the Center, the thermal characteristics of these lattices were derived and tested, where it was found that the surface temperature of the engineered structure was 252% lower than an equal-mass finned heat sink of the same material, at 23 watts! Fluid power components can now be designed with desired load-bearing and thermal-management properties.

To further improve system efficiency and effectiveness, Project 2D has investigated the practicality of thermal energy storage, recovery, and conversion to electrical power. The MEMS pneumatic valve being developed at UMN is one example of a device that could be powered by converted waste heat.

While Project 2D has started at the lower end of the power spectrum, these technologies can be scaled for

projected to consume less than five grams (5g) of fuel over one hour of orthosis actuation. The system could also be scaled for applications such as John Deere’s Timberjack, Boston Dynamics’ Big Dog, and other walking fluid power machines.

application to all fluid power systems. Indeed, it has already drawn the interest of a major aerospace manufacturer.

Future research is being proposed to further employ these technologies in the development of a new, compact, high-pressure, high-efficiency pneumatic system that is

*Reprinted from the CCEFP 2012 newsletter (Issue 18) 12 Oct Fluid Pwr Jrnl 011-5197A_Layout 1 8/20/12 11:41 AM PageSpring/Summer 1

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15

Fluid Power Drives Great Machines.

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Use the Product Locator to find the right supplier to meet your motion control needs and help your company succeed. Get started today at http://www.nfpa.com/ProductLocator 16

tech directory 2012

www.fluidpowerjournal.com | www.ifps.org

Fluid Power Product Focus || By G. K. Fling, P.E., CFPS

Hydraulically Powered Ride

T

he hydraulically powered ride, created as a teaching aid for a class of fluid power students at Richland College in Dallas, Tex., is used to describe the steps in the design process and to develop an interest in hydraulics. Many students enter the class with little knowledge of hydraulic applications or the forces that can be provided by a hydraulic cylinder.

The ride operator requires almost no instruction before the first ride. Instruction is limited to the following commands: “Pull the valve handle back to go up, and push the valve handle forward to go down.”

An electric motor-driven gear pump behind the ride structure creates hydraulic power. The pump is mounted inside the reservoir. Pump flow rate is 2.2 gpm, and fluid is filtered before it is returned to the reservoir. The hydraulic power supply is connected to the ride via quick disconnects in the pressure and return lines. A channel beneath the filter catches any spillage that might occur when the filter element is changed. The power supply is powder-coated a silver color.

Since the power supply is too heavy for one person to lift, casters improve mobility.

This simple system has only one low-cost, double-acting, surplus cylinder. The operator’s travel is almost four times the stroke of the cylinder.

The ride has a parallelogram mechanism that maintains a seat angle of 11 degrees with respect to the horizontal throughout the operator’s travel or height. Thus, he or she is not tilted back as the ride rises or tilted forward as the ride descends. The control valve allows the operator to control both the rate of movement and the direction of movement. (The heaviest student to try the ride weighed 252 pounds.)

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Which Hydraulic Fluid?

By Brendan Casey, HydraulicSupermarket.com

M

ost hydraulic systems will operate satisfactorily using a variety of fluids. These include multigrade engine oil, automatic transmission fluid, and more conventional anti-wear hydraulic oil. But which type of fluid is best for a particular application? While it is not possible to make one definitive recommendation that covers all types of hydraulic equipment in all applications, the following are some of the factors that need to be considered when selecting (or changing) a hydraulic fluid.

Multigrade or Monograde

Viscosity is THE single most important factor when selecting a hydraulic fluid. It doesn’t matter how good the other properties of the oil are; if the viscosity grade is not correctly matched to the operating temperature range of the hydraulic system, maximum component life will not be achieved. Defining the

Component Type

Minimum Permissible Viscosity (cSt)

Minimum Optimum Viscosity (cSt)

Vane

25

25

External gear

10

25

Internal gear

20

25

Radial piston

18

30

Axial piston

10

16

Table 1: Typical minimum viscosity values for hydraulic components

If fluid viscosity can be maintained in the optimum range, typically 25 to 36 centistokes, the overall efficiency of the hydraulic system is maximized (less input power is given up to heat). This means that

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correct fluid viscosity grade for a particular hydraulic system involves consideration of several interdependent variables: • Starting viscosity at minimum ambient temperature • Maximum expected operating temperature, which is influenced by maximum ambient temperature • Permissible and optimum viscosity range for the system’s components Typical minimum permissible and optimum viscosity values for different types of hydraulic components are shown in Table 1.

If the hydraulic system is required to operate in freezing temperatures in winter and tropical conditions in summer, then it’s likely that multigrade oil will be required to maintain viscosity within permissible limits across a wide operating temperature range.

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tech directory 2012

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www.fluidpowerjournal.com | www.ifps.org

under certain conditions, the use of a multigrade can reduce the power consumption of the hydraulic system. For mobile hydraulic equipment users, this translates to reduced fuel consumption.

There are some cautions when using multigrade fluids in hydraulic systems. The viscosity index (VI) improvers used to make multigrade oils can have a negative effect on the air separation properties of the oil.

This is not ideal, particularly in mobile hydraulic systems that typically have a relatively small reservoir with corresponding reduction in de-aeration characteristics.

And if a multigrade not specifically formulated for use in hydraulic systems, such as engine oil, is used, the high shear rates and turbulent flow conditions often present in hydraulic systems destroy the molecular bonds of the VI improvers over time, resulting in loss of viscosity.

For this reason, if a multigrade engine oil is used in a hydraulic system, it is recommended that the hydraulic component manufacturers’ minimum permissible viscosity values (Table 1) be increased by 30% to compensate for VI improver sheardown.

Either way, if the hydraulic system has a narrow operating temperature range and it is possible to maintain optimum fluid viscosity with a monograde, it’s wise to “keep it simple” and not use a more complex multigrade oil.

Detergent or No Detergent

DIN 51524; HLP-D fluids are a class of anti-wear hydraulic fluids that contain detersive and dispersive additives. The use of these fluids is approved by most major hydraulic component manufacturers. Detergent oils have the ability to emulsify water, and disperse and suspend other contaminants such as varnish and sludge. This keeps components free from deposits, but means that contaminants are not precipitated out; they must be filtered out. These can be desirable properties in mobile hydraulic systems, which, unlike industrial systems, generally have reduced opportunity for the settling and precipitation of contaminants in the reservoir due to its relatively small volume.

The main caution with these fluids is that they have excellent water emulsifying ability, which means that if present, water is not separated out of the fluid. Water accelerates aging of the oil, reduces lubricity and filterability, reduces seal life, and leads to corrosion and cavitation. Emulsified water can be turned into steam at highly loaded parts of the system. These problems can be avoided by maintaining water content below the oil’s saturation point at operating temperature.

Anti-Wear or No Anti-Wear

The purpose of anti-wear additives is to maintain lubrication under boundary conditions. The most common anti-wear additive used in engine and hydraulic oil is Zinc dialkyl dithiophosphate (ZnDTP), although this is slowly changing due to environmental considerations given that zinc is a “heavy” metal. The presence of ZnDTP in the oil is not always seen as a positive, due to the fact that it can chemically break down and attack some metals, and reduce filterability. Stabilized ZnDTP chemistry has largely overcome these shortcomings, making it an essential additive to the fluid used in any high-pressure, high-performance hydraulic system, such as those fitted with piston pumps and motors.

A ZnDTP concentration of at least 900 ppm can be beneficial in mobile applications and is recommended by some OEMs.

oil supplier and the equipment manufacturer before switching to a different type of fluid.

Conclusion

Brendan Casey is the founder of HydraulicSupermarket.com and the author of Insider Secrets to Hydraulics, Preventing Hydraulic Failures, Hydraulics Made Easy, Advanced Hydraulic Control, and The Definitive Guide to Hydraulic Troubleshooting. A fluid power specialist with an MBA, he has more than 20 years experience in the design, maintenance, and repair of mobile and industrial hydraulic equipment.

Visit www.HydraulicSupermarket.com.

About the Author

As far as hydraulic oil recommendations go, for commercial reasons relating to warranty, it is wise to follow the equipment manufacturer’s recommendations. In some applications, however, the use of a different type of fluid to that originally specified by the equipment manufacturer may increase hydraulic system performance and reliability. But always discuss the application with a technical specialist from your

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Actuatio

by hydraulic fluid power is simply the best way to efficiently move things with force.

Around the world, wherever motion by machine has to accomplish the hard jobs, hydraulic fluid power makes it happen. Given all of this, however, there still is radical change afoot in hydraulic actuation, and it has nothing to do with how actuators move things but rather the way that movement is controlled and, in non-passive damping applications, the speed of movement.

A hydraulic actuator, or more commonly a hydraulic cylinder, is a motor—a device that, in this case, converts the energy of hydraulic pressure into mechanical energy, causing or damping motion. Traditionally, control of the hydraulic cylinder motion has been embodied in the human at the controls. Over the past several years, however,

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times how fast they are going with great accuracy and reliability.

As the demand for more and better linear position feedback from hydraulic cylinders has increased, one technology for providing that feedback has emerged: magnetostrictive sensing.

Magnetostrictive sensing has earned its place of prominence for good reason: despite its complexity, up until now it has met most users’ requirements for resolution, measurement tolerance, measurement range, temperature coefficient, susceptibility to environmental conditions, ability to physically integrate into the cylinder, and overall economy. Also, it is contactless, which means it relies on a magnetic field to actuate its function and thus cannot wear out like a potentiometer or resistive position sensor. Contactless sensors like magnetostrictives are often referred to as “infinite-life sensors.” (Not to say other things can’t go wrong in the meantime).

Magnetostrictive sensing uses “time-of-flight” measurement to indicate distance just as radar or ultrasonic sensing does, but the time of flight measured is of a current pulse going down a very special wire called a “waveguide.” A torque or twist in the waveguide occurs when the pulse encounters a magnetic field at the measured point. This twist at the target point produces a sonic wave that propagates back to a pickup that ultimately translates it into a voltage pulse. The whole process is timed so the amount of time it takes for the current pulse to go out and the sonic pulse to come back and generate a voltage pulse is directly proportional to the linear position

sing

Sen n o i t i s o P onal

oporti r P f o e r utu and the F ylinders ulic C in Hydra

computers have begun to replace human operators, or in situations where a human is still involved, the control is being expressed to the actuator via electronic signal (action-by-wire, such as “fly-by-wire”).

In either case, there is a new requirement for the cylinder to accurately relay back to the controller the extension or position of the cylinder rod along its stroke in real time.

For years, cylinders have had limit switches to indicate if the cylinder has reached the maximum and minimum points of stroke. To do “real” motion control with a cylinder, as in action-by-wire or with servo-type closed-loop systems, the cylinder must be equipped with some sort of proportional output linear position sensor to indicate to the control system the cylinder’s extension and sometimes its velocity as a derivative of position over time. The radical change in hydraulic actuation is represented in the demand for so-called “smart cylinders”—cylinders that can tell you where they are in their strokes and some-

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of the object being sensed. To allow all of this to happen in a hydraulic cylinder, a gun-drilled hole is run down the center of the cylinder rod to accommodate the length of the wave guide, which is encased in a stainless steel tube that extends from the sensor’s electronics housing. A ring magnet is placed into the piston end of the cylinder rod at the head of the gun-drill hole to actuate the sensor as the cylinder rod extends and retracts.

There are several other ways that position sensing can be done within the physical context of a hydraulic cylinder, including magnetoresistive sensing, resistive (potentiometric) sensing, Hall effect sensing, and sensing using linear variable differential transformers (LVDTs), but none come close to the volume of application of magnetostrictive sensing.

Despite its popularity, in recent years it has become evident that there are certain drawbacks to magnetostrictive linear position sensing in certain broad and not-so-broad swaths of hydraulic cylinder applications. This has engendered a new look at a late 20th-century position sensing technology first commercialized at Schaevitz Engineering in conjunction with David Fiori, Jr. (whose patents were crucial to its development): the linear variable inductance transducer (LVIT).

The LVIT is the simplest of magnetic field-based position sensors. Mechanically, the sensor is nothing

.

sors Corp

right Sen

CEO, Eve haevitz,

By Les Sc

Fig. 1

more than a single coil of wire wrapped on a fiberglass rod with the two electrical connections to the coil used to simultaneously excite and then measure the magnetic field variation that corresponds to the position of a moving conductive target. It is an eddy current device based on high frequency alternating magnetic field physics that depends only on the effect of the conductivity of the moving target. Since only the conductivity of the moving target is important, it is capable of working over an extremely broad range of temperatures without the use of magnets or exotic and expensive materials. Electronically, the eddy current effect results in a change in self-inductance of the sensor element. This inductance determines the resonant frequency of an oscillator circuit, and it is this frequency that provides the position information interpreted and conveyed to the device’s output by the built-in microcomputer interface. The target does not contact the coil, thus making it a contactless, socalled “infinite-life” sensor.

When one compares the simplicity and robustness of construction of the LVIT with the complexity and delicacy of construction of the magnetostrictive sensor, a primary advantage of the LVIT comes quickly to light. Linear sensor-equipped hydraulic cylinders are increasingly being employed in heavy-duty industrial and mobile applications where significant shock and vibration conditions are the norm. The inherently fragile nature of the magnetostrictive sensor is a major cause of concern in such applications, whereas the LVIT can be considered virtually indestructible over time. The internal physical robustness of the LVIT is particularly important to the emerging active and semi-active hydraulic shock damping systems that are in development primarily for defense-wheeled, track-tactical, and logistical vehicles. Here the linear sensor provides the vital shock deflection feedback that allows the damping system to react to road and vehicle conditions in real time (you can imagine the punishment they take).

Another LVIT attribute that takes up where the magnetostrictive sensor leaves off is in maximum operating temperature. There are increasing numbers of smart cylinder applications (particularly in mobile hydraulics) where operating temperatures are at least 125°C and as much as 150°C due to the operating environment of the cylinder and/or the rapid movement of fluid into and out of the cylinder via small orifices that causes heating. The waveguide material of a magnetostrictive sensor begins to lose

its requisite operating properties above about 100°C, thus causing a marked deterioration in the output quality of the magnetostrictive sensor above 100°C, making it useless for high-temperature applications. Given the right electronics, an LVIT has no problem operating up to 150°C, again making it suitable for the advanced vehicle shock damping systems mentioned above that routinely operate in that temperature range.

LVITs generally have an approximate total measurement tolerance of < +/-0.15% of full-scale output, which is certainly not as good as magnetostrictive linear sensors but

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tech directory 2012

21

By Les

t Sensors

, Everigh

, CEO Schaevitz

Corp.

• • • Fig. 2

ounted

ort-m for use p eLiVIT™ 3 L t h g veri der FIG. 3: E ulic cylin in a hydra d e d d e b or em

more than adequate for most industrial and mobile applications. Magnetostrictives can also go to much longer measuring ranges (20 feet or more) than LVITs. Other notable attributes of the LVIT include the following: • LVITs require no magnet for actuation. The most advanced LVITs merely sense the gun drill

Circle 472

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•

hole in the cylinder rod and do not require a special material target tube insertion.

LVITs do not suffer from output “jitter”—a phenomenon of uneven or stepped output that can be endemic to time-of-flight sensors.

LVITs require no indexing of the target as do magnetoresistive, resistive, and Hall sensors.

LVITs can be much more economical to acquire and install than most other contactless sensors.

LVITs have no “dead zones” at the beginning or end of the measurement range, minimizing the stroke-to-length ratio of the sensor.

As the need for proportional linear position feedback from hydraulic cylinders grows with the increasing prevalence of remote or “by-wire” motion control functionality in industry, more is demanded of the linear sensor integrated into the cylinder. While dominated by the magnetostrictive sensor, the market for linear position sensors is now demanding a more robust solution that can also operate at higher temperatures in many industrial and mobile applications.

The LVIT appears to be that solution.

For more information: Les Schaevitz is CEO of Everight Sensors Corp., a developer and manufacturer of LVIT linear position sensors for, among other things, fluid power applications. David Fiori Jr., Everight’s chief technologist, contributed to this article. Visit www.everightsensors.com.

ifps certification spotlight

Pneumatic Specialist The International Fluid Power Society is the only organization that provides comprehensive technical certification offerings for all professionals in the fluid power and motion control industry.

IFPS

certification tests provide an objective, third-party assessment of an individual’s skill level and are recognized industrywide. Individuals who successfully master a level of competency are issued a credential signifying an elevated status in the workforce. In order to keep pace with changing fluid power and motion control technologies, the IFPS certifications must be renewed every five years.

IFPS defines a Fluid Power Specialist as one who analyzes and designs systems, selects components, and instructs others in operations and maintenance.

The Pnematic Specialist certification is for individuals designing systems and writing specifications, including sizing and selecting pneumatic components for mobile and industrial operating machinery. They provide pneumatic systems with schematics using standard fluid power symbols. Systems are designed to fluid power essential practices supported by national and international standards. The Pneumatic Specialist certification requires a three (3)-hour written test.

Summary Outline for the Pneumatic Specialist certification: • Load and motion analysis: solves formulas for torque, speed, and horsepower for cylinder and air motor-driven systems • Solves for the reaction forces on a cylinder rod bearing • Computes cylinder bore and pressure to move loads with a friction factor • Solves for the pressure and suction area to provide the required lifting force using vacuum cups Allvacuum ERP software • Understands generators has the • Provides ISO cleanliness level for system(s) basics to get the job done, • Specifies filtration products to maintain ISO cleanliness but only Epicor offers

• Specifies flushing and commissioning procedures • Calculates air cylinder velocity • Selects and sizes conductors based on pressure and flow requirements • Computes the necessary CFM airflow and pressure to power a cylinder • Computes the necessary CFM airflow and pressure to power an air motor • Calculates and selects the proper air over oil intensifier • Calculates the kinetic energy required to stop a load with a shock absorber • Calculates the Cv flow factor for an air valve • Understands critical (sonic) velocity and how to calculate it • Calculates the required compressor delivery capacity for system demand • Understands ladder logic • Uses Ohm’s law and Kirchhoff’s law to solve series-parallel circuits for voltage, current, and resistance • Matches appropriate wiring arrangements between PLCs and directional control valves • Performs system troubleshooting • Performs compressed air audits • Promotes safe working conditions with pressurized systems

Is your software the complete solution for your distribution Recommended Reference Materials: • Fluid Power Lightning Reference Handbook business?

• Fluid Power Math for Certification

1. What torque could be expected from an air motor that is rated at 4 kw at 2400 rpm?

A. 6.62 n-m B. 8.85 n-m

C. 11.73 n-m D. 11.87 n-m

E. 15.92 n-m

2. A barometer will support a 760-mm column of mercury at standard atmospheric conditions.

How many feet of water would this be? (Round the answer to three places.)

A. 6.042 ft B. 10.183 ft

C. 23.950 ft D. 27.558 ft

E. 33.899 ft

3. The average air consumption rate of a system is 25 cfm at 100 psig. Assume that the system includes an air receiver that adequately supplies air during times of peak air consumption. What size compressor, in SCFM, is needed if the compressor is to operate at a 60% duty cycle?

A. 69 scfm B. 117 scfm

C. 325 scfm D. 195 scfm

E. 42 scfm

For more information about IFPS certifications and to access additional practice questions, visit www.ifps.org or call 800-308-6005.

IFPS Study Manual Fluid Power Data Books Beginning Pneumatics Pneumatic Technology Textbook Fluid Power Design Handbook

Answers 1 = E, 2 = E, 3 = C

• • • • •

Test Your Skills

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All ERP software has the basics to get the job done,

epicor.com/distribution but only Epicor offers the complete set of tools in one distribution software solution.

epicor.com/distribution Business Inspired™ Copyright © 2012 Epicor Software Corporation or a subsidiary or affiliate thereof. Epicor and the Epicor logo are registered trademarks of Epicor Software Corporation. All rights reserved.

Copyright © 2012 Epicor Software Corporation or a subsidiary or affiliate thereof. Epicor and the Epicor logo are registered trademarks of Epicor Software Corporation. All rights reserved.

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23

Turn

By Daniel Pascoe, General Manager, Vacuforce, Inc.

It Off! If

it’s not needed, then don’t use it, right? An obvious statement, but so rarely is this philosophy employed when using compressed air-powered venturi systems. This article explains the benefits of using a single venturi with compressed air control valves instead of multiple venturi units in a vacuum pick-and-place application that employs numerous vacuum cups.

Fig. 1 shows a very typical multiple-cup vacuum lift system. Each vacuum cup is connected directly to its own dedicated single-stage venturi. This system, although effective in its fundamental task, uses considerable compressed air to operate. Assume that the cup diameter is 50 mm (2") and the lifting rig is handling non-porous plastic sheets. A suitable venturi for this application would use about 1 cfm of compressed air. There are a total of 40 vacuum cups and associated venturi employed. Therefore, the system would have a total air consumption of about 40 cfm. This equates to about 10 hp or 7.5 kW of compressed energy to operate. I’m sure you’ll agree this is significant.

Fig. 2 shows the same vacuum cup array but utilizes a single larger compressed air-driven venturi or vacuum generator. However, this venturi is a multistage unit, which offers a better operating efficiency in regards to compressed air vs. vacuum air intake. A

FIG. 1

suitable venturi for this system uses about 4 cfm of compressed air. That’s certainly a lot less than in Fig. 1 and equates to an energy consumption of about 1 hp or 0.75 kW. However, the venturi in Fig. 2 would not have the same vacuum flow as all of the single units employed in Fig. 1. Therefore, a vacuum “reservoir” is utilized between the vacuum venturi and vacuum cups. Also installed is a suitable vacuum control valve. Vacuum “energy” is stored between the venturi inlet and the vacuum valve, indicated by the blue lines on the sche-

matic. This also removes the concern of some users where single-stage units are used due to the faster cycle time to reach a safe vacuum level. The “ramp-up” speed of a multistage unit is often slower than a single-stage model. By utilizing the reservoir and vacuum control valve system, this “ramp-up” time is virtually eliminated. As soon as the vacuum valve is opened, vacuum is applied to the cups virtually instantaneously.

The venturi also utilizes an energy-saving circuit comprised of the circuitry as shown in Fig. 3. When the reservoir volume reaches a preset point of 24"Hg FIG. 3

FIG. 2

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cup sealed valve remains open

cup NOT sealed valve closes

FIG. 4

(80% vacuum), for example, the venturi will automatically shut off. During this period, compressed air is not being used. When vacuum is required at the cups, the vacuum valve will open and the energy stored in the reservoir will offer vacuum force to the cup. If the reservoir is large enough, the decrease in the vacuum level within the circuit could be within the hysteresis of the vacuum switch on the energy-saving circuit. If this is the case, the venturi will remain off.

Only when the vacuum level within the circuit falls below the hysteresis point will the vacuum venturi restart and recharge the circuit. Therefore, unlike the venturi used in Fig. 1, the single multistage venturi will ONLY be on when it is required to recharge the circuit.

Applications using the circuit shown in Fig. 2 can use as much as 90% less compressed air if the ancillary components are selected and installed correctly.

A disadvantage of this circuit, as is commonly discussed during presentation to the vacuum user, is that if one of the vacuum cups fails to seal, the complete circuit could fail. This is true. Accessories, such as selfclosing valves shown in Fig. 4, could be installed at each vacuum cup. Once the cup is placed against the load to be lifted, if the valve “senses” air flow because the cup is not correctly sealed or is damaged or the load varies in size each time, the valve will CLOSE, isolating that particular cup from the rest of the vacuum circuit, which will maintain a full system vacuum.

Alternatively, if the load being handled changes in size in only one direction, such as different lengths of steel sheet, then individual control on “zones” could be implemented by installing extra vacuum control valves.

By utilizing the latest vacuum technology and consulting with vacuum application engineers rather than just the salesperson, different methods of vacuum generation can be reviewed, and the best, most efficient system can be employed based on the application. This article offers a simple yet rarely used method of multiple vacuum cup handling with minimal compressed air consumption. As with most applications, there are many methods of achieving success. With some thought and dialogue with the vacuum user, a near-perfect solution is never far away.

This article is intended as a general guide and as with any industrial application involving machinery choice, independent professional advice should be sought to ensure correct selection and installation.

Daniel Pascoe is General Manager of Vacuforce Inc, manufacturer and distributor of vacuum components and systems for industry in North America. Daniel can be reached via the Vacuforce website at www.vacuforce.com or directly at dpascoe@vacuforce.com. Find Vacuforce on Facebook and keep up to date on Twitter.

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Kit includes: • OPTIMAX™ 3000 super-high intensity cordless, rechargeable blue light LED leak detection flashlight • 16 oz twin-neck bottle of patented OIL-GLO™ 44 concentrated fluorescent dye for synthetic and petroleum-based oils and hydraulic fluids • 8 oz spray bottle of GLO-AWAY™ dye cleaner • Smart AC and DC chargers, fluorescenceenhancing glasses and a rugged carrying case.

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25

By Eric Bessey, Pneu-Logic Corp.

Central Control of Compressors Reduces Energy

According to the U.S. Department of Energy,

some 10% of all the energy consumed by industrial plants is used to power air compressors. A startling fact is that much of this energy is wasted due to inefficient compressor controls. The problem is that many compressors are controlled locally, either by mechanical valves and pressure switches or by electrical controls at the compressor.

When controlled in this manner, it is not unusual to have multiple compressors running at partial load. In addition to using energy inefficiently, this situation results in unnecessary component wear and compressors fighting each other in an attempt to maintain pressure and airflow at different levels. The waste and extra cost as a result of operating compressors in this way can be greatly reduced or eliminated by installing a central control unit to manage the compressors.

Fig. 1 shows a typical scenario that was uncovered during an energy audit of Ball Corp.â&#x20AC;&#x2122;s aluminum container plant in Springdale, Ark. As the plot shows, each of the plantâ&#x20AC;&#x2122;s five air compressors was in continuous operation with the load fluctuating significantly from time to time on several of the compressors. In order to compensate for inefficient controls, pressure set points were set higher than needed so that the minimum air requirements of the plant were met at all times.

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All of these factors combined to waste a significant amount of electrical energy. Across the industry, with proper central control systems in place, as much as 40% of the energy previously used to power a plant's compressors could be saved.

SEQUENCERS PROVIDE BASIC CENTRAL CONTROL One of the first types of central controllers to be developed some 20 years ago was the sequencer. A sequencer activates compressors according to a pre-determined order as the controller works to achieve a pressure range or target pressure. At most, one compressor is allowed to run at partial output, while others are configured to run at full load or they are turned off completely. The result is a marked reduction in energy usage. For example, when a PL1000 target sequencing controller manufactured by Pneu-Logic Corp. (Portland, Ore.) was installed at the Ball manufacturing plant mentioned above, rather than all five compressors running virtually all the time, the compressed air needs of the plant were met by at most just three compressors: one or two compressors at full load and a third compressor (a new variable-speed trim compressor) running at partial load as required. Fig. 2 shows the result of an energy audit made after the plant upgrade.

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Fig. 1: Inefficient compressor control results in multiple compressors running at partial load, as shown in this audit of Ball’s Springdale plant.

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With the new controls, the pressure at the plant is more stable (+/- approximately 3 psi) compared to the old scheme whereby the pressure was being maintained +/-12 psi, allowing Ball to reduce the average discharge pressure by 10 psi, thereby further reducing energy use. The average savings in horsepower achieved by the upgrade was more than 20% of the total horsepower used by the compressor network. The post-upgrade audit revealed that the system pressure could be reduced by an additional 6 psi due to the precise control implemented by the sequencer. With this level of savings, payback on the control system investment was achieved very quickly.

GO WITH THE FLOW AND IMPROVE RESULTS Most compressed air control methodologies rely on pressure. This is the basic concept behind sequencers, which control solely on pressure. While this methodology can effectively and efficiently control compressors, it is not intelligent in selecting exactly which compressors to run at a given load to maximize efficiency. In order to pick the best compressor configuration, the solution is to monitor the flow of air, not just the pressure. With this additional data, the control system can select which compressors best meet the demand.

Flow can be calculated based on a number of parameters or measured directly. Transducers can be placed at critical locations throughout the plant (Fig. 3). A central controller can then work directly with data collected from the transducers.

KNOWING THE SCORE OPTIMIZES COMPRESSOR CHOICE Though effective in implementing basic control functions, a limitation of some sequencers is the lack of flexibility in implementing different control strategies, whereas some applications can benefit from more sophisticated control systems. An improvement over a controller that employs a fixed set of rules for selecting which compressor to run next is a unit that uses scoring. With scoring, the central controller makes decisions on which compressor to run based on the availability of compressors and

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Fig. 3: The controller uses pressure and flow information to meet the compressed air needs of each work area as efficiently as possible.

Fig. 4: (Right) The Pneu-Logic PL4000 manages the entire system based on demand, pressure needs, and compressor scoring.

Fig 5: (Bottom) This staging table for a particular PL4000 installation shows the combination of compressors that would be run to achieve a specific flow level shown on the diagonal line. (Note that for the purpose of selecting compressors, the controller groups them according to similar capabilities and then selects the actual compressor to run based on its run-time score.)

a score that is assigned to each compressor (which serves as a measure of a compressor’s “readiness”). When environmental factors change or preventive maintenance milestones are reached for a particular compressor, the controller can automatically respond with a new set of decision rules.

An example of a controller that uses scoring is the Pneu-Logic PL4000 (Fig. 4).

This unit gives users continuous real-time control of all compressors, regardless of manufacturer, compressor type, age, size, or efficiency. It assigns each compressor a runtime score that changes with time as the compressor runs and as air demand changes.

Run-time scoring enables the controller to predict when operating compressors should be turned off and replaced with compressors in reserve. When a compressor hits a threshold, the control system can give it a break and turns on another from the same group, with a similar capability, to replace it. The up-to-date decision space is reflected in the controller’s staging table (Fig. 5), which is displayed on the system’s operator screen, and which can be monitored and further interrogated to verify that the system is operating correctly.

To take into account other external control factors that should be worked into the mix, the control system should accept user-defined inputs. For example, by incorporating production forecasts or production rates, the control system can accommodate compressor maintenance during slack periods, or it can flag when the system will be called upon to operate in a specific way to best serve production. The ability to incorporate user-defined inputs into the mix can also be used by plant engineers to test out different control strategies or allow for additional factors to be rolled into the control equation. Or, the strategies for selecting specific compressors to run can be changed over time as a factory’s production mix changes, proactively selecting a “recipe” that describes the compressed air resource that is required to serve a particular production run. Alternately, the mix of compressors needed to serve a particular work shift can be set up to support a specific maintenance strategy that decreases maintenance costs.

BUILDING NETWORKS OF COMPRESSORS With the ability to monitor and respond to multiple air pressure and flow sensors comes the ability to also manage different pressure levels throughout a plant. As Fig. 3 shows, a factory’s compressors and compressed air delivery systems can be organized into networks that may be optimized to use energy most efficiently and to provide backup air sources when needed. The control system can take inputs from certain zones of the plant, certain pieces of equipment, and production lines or machine centers, and then provide just the right amount of air at just the right time to meet those needs.

Zones supporting inactive production lines can be closed off as well, thereby reducing the overall leak load.

With active controls at their fingertips, plant managers should no longer regard the cost of compressed air to be an issue that affects facilities managers only. In fact, plant air supply has a variable cost like any resource used in the manufacturing process, and it can be controlled to maximize productivity and minimize waste. In recognition of this, we refer to all of the functions that a controller performs to actively manage compressor resources to meet air demand while minimizing costs by the name Airgonomics™.

By using a flexible controller, such as one of the Pneu-Logic units described above, plant operators can be assured another industry “best practice” is in place and is contributing to overall air system efficiency. Along with effective controls come the monitoring, trending, and reporting tools necessary to fully understand and effectively manage/optimize plant-wide compressed air systems.

For more information, visit www.pneulogic.com.

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Previous PROBLEM

(From Manufacturers Directory)

Air Teaser

By Ernie Parker, AI, AJPP, AJPPCC, S, MT, MM, MIH, MIP, MMH, Fluid Power Instructor, Hennepin Technical College, EParker@Hennepintech.edu

The teaser is posted on the IFPS website (www.ifps.org) and also printed in the Fluid Power Journal. Submit your information via the website, or fax it to 856-424-9248 attn: Donna Pollander. Those who submit the correct answer before the deadline will have their names printed in the Society Page newsletter and in Fluid Power Journal. The winners will also be entered into a drawing for a special gift.

Winner of Previous Problem: David Motley, CFPS

Parker Hannifin Corp.

Kings Mountain, NC

Fig. 1 is a door to open with an air cylinder pushing at a 45-degree angle. The door is 48 inches high and weighs 100 pounds. It needs to open 90 degrees with a 12-inch stroke cylinder using 100 psi of air pressure. The door is uniformly balanced. What standard size cylinder is needed to open the door?

48.00

Door (open position)

45° 8.49

Door (closed position)

Arc of Door

Solution:

There are several ways to solve the force needed to lift the door.

The formula is force x force distance = effort x effort distance. This is a moment equation, and the forces must be calculated perpendicular to the distance. The center of gravity for the door is 24" from the hinge. Therefore, 100# x 24" = 8.49 x the effort. Effort pushing straight up at the cylinder rod is then 282.69 lbs. Now divide that answer by the sine of 45 degrees, and you will get an effort of 400 lbs.

A second way is to determine the minimum perpendicular distance that the cylinder will see from the hinge.

Take the 8.49"and multiply by the sine of 45 degrees, and you will get 6 inches. That distance is also equal to 1/2 the distance of the stroke that was listed as 12". Now the moment equation is 100 lbs. x 24" = 6" x effort.

Effort again equals 400 lbs.

Given is the pressure at 100 psi. Use F = PA. Force / Pressure = Area. 400 / 100 = 4 square inches. Use A = D x D x 0.7854 and work backwards. Four / 0.7854 = square root = 2.26" diameter. The next standard size cylinder is 2-1/2” bore. That will allow the pressure to be reduced to 82 psi, allowing for any lost for friction, etc.

Final answer is 2-1/2".

George Fling, CFPS

NEW PROBLEM

Two cylinders 2 x 12 x 5/8" 100 psi

Southwestern Controls, Dallas, TX

Sheet Metal Shear

Ronald Arreola, CFPS Hydraforce, Inc., Lincolnshire, IL

Paul Connop, Sunsource

Hinge

Arc of Cylinder

Answered Correctly:

Joseph Entwistle, CFPE Hydro Air Dees, Point Pleasant Beach, NJ

12.00

100-pound door

To shear blade to pull down

Main Pivot

Two cylinders 2 x 12 x 5/8" 100 psi

Foot bar

Linkage to pull down on the shearing blade Cylinder forces Free Body Diagram

Main Pivot

This month’s problem is to convert a manually operated sheet metal shear to operate on pneumatics. Looking at the diagram, you will see the placement of the two pneumatic cylinders mounted at a 75-degree angle, each with a two-inch bore operating at 100 psi. The cylinders are 20" from the pivot, and the manual bar that one would stand on is 24" from the pivot. How much would a person have to weigh, standing on the bar, to develop the same force as is produced by the two cylinders?

Assume 100% efficiency.

www.ifps.org | www.fluidpowerjournal.com

tech directory 2012

29

Web marketplace // Special Advertising Section www.alloysandcomponents.com

www.argo-hytos.com

www.hydraulicsliteraturestore.com/info.html

Alloys & Components, Southwest

Argo-Hytos, Inc.

Eaton

ARGO-HYTOS manufactures sophisticated filter solutions, mainly applied in hydraulic and lubrication systems as well as in transmissions. The range of solutions that have been implemented extend from stationary industrial plants to mobile applications.

Eaton’s Hydraulics Training Services offers a variety of industry leading hydraulics training products.

From training DVD's to our popular Industrial Hydraulics manual, we have developed materials to fit all skill sets. Our training manuals are utilized by instructors and their students around the world.

Our multimedia and cutaway products offer a more visual and hands-on approach to teaching and learning hydraulics concepts. And if you're involved with teaching your own hydraulic training program we have state-of-the-art training simulators for teaching industrial and mobile applications. Call 1-800-413-8809 for more details.

Browse our Web site for information on the products we offer!

• Hard Chrome Plated Rod • Honed ID Cylinder Tubes • Continuous Cast Bronze Bars • Continuous Cast Aluminum Bronze Bars • Aluminum Bars & Ductile Cast Iron • Ductile Cast Iron • Alloy Bars • Heavy Wall Mechanical Tube All the Hydraulic Hardware You'll Ever Need! Contact us at sales@alloysandcomponents.com or call toll free 800-441-1994.

Contact us at: ARGO-Hytos, Inc. P.O. Box 28 • Bowling Green OH, 43402 Phone 419.353.6070 • Fax 419.354.3496 info.us@argo-hytos.com www.argo-hytos.com

483

484

www.gemssensors.com

www.womackmachine.com

www.yatesind.com

Gems Sensors & Controls

Womack Machine Supply Co.

Yates Industries

Gems Sensors & Controls is a leading manufacturer of level switch products, pressure switches, pressure transducers, flow switches, miniature solenoid valves, proximity switches and liquid level control units for use in a broad range of fluids across industry.

Gems products feature an ever-expanding selection of fluidic and pressure sensing technologies.

Gems Sensors & Controls One Cowles Road • Plainville, CT 06062-1198 1-800-378-1600

Womack Companies is an Industrial Distributor of Hydraulic, Pneumatic and Automation Equipment with corporate offices located in Farmers Branch, Texas.

Womack represents some of the world's leading manufacturers of fluid power and industrial control products, and maintains one of the largest inventories in the South and West in conveniently located Regional Service Centers. Womack Companies supply individual components and complete systems to Customers in every industry from Energy, Agriculture, and Construction, to Defense. Contact us by calling 800-569-9800

486

30

485

tech directory 2012

487

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Yates Cylinders Offer: • H6 Series - Heavy Duty Hydraulic (3000 PSI) • H4 Series - Medium Hydraulic (up to 1500 PSI) • A4 Series - Heavy Duty Steel Air (250 PSI) • A2 Series - Aluminum Air (250 PSI) • Air/Oil Intensifiers • All Stainless Steel Cylinders • Air/Hydraulic Welded & Mill Type Cylinders • Special Cylinders per Customer Supplied Prints and Specifications Yates Industries, Inc. Yates Industries South, LLC 23050 Industrial Dr. E. 3401-J Highway 20 St. Clair Shores, MI 48080 Decatur, AL 35601 586.778.7680 ph 256.351.8571 ph 586.778.6565 fax 256.351.8571 fax 488

tech directory Listing 2012

11 Aug Fluid Pwr Jrnl 011-5198_Layout 1 7/12/11 8:46 AM Page 1

Pressure Gauges, Transducers, Switches and more…

From the Experts in Pressure Measurement!

PRESSURE INSTRUMENTS

www.ifps.org | www.fluidpowerjournal.com

ASHCROFT INC. • 250 EAST MAIN STREET STRATFORD, CT 06614-5145 • USA 800-328-8258 • www.ashcroft.com EMAIL: info@ashcroft.com

tech directory 2012

31

Tech directory Listing 2012

New motor model bme

• Interchanges with White Model RE-500 • 11 Displacement Sizes from 7.63 to 45.78 cu. In/rev.

• Magneto and Wheel Drive Flanges Available • Needle Shaft Bearings

• Competitive Pricing

www.dynamicfc.com 32

tech directory 2012

• 864-638-5544 www.fluidpowerjournal.com | www.ifps.org

tech directory Listing 2012

AdApters And ConneCtors www.adaconn.com (215) 643-1900

ModulAr vAlves And fittings www.inserta.com (215) 643-0192 FAX (215) 643-4017 538 Township Line Road • Blue Bell, PA 19422-2798

  ©2012 ADACONN® + INSERTA®

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tech directory 2012

33

Tech directory Listing 2012

“Control Reliable” Machine Guarding Safety Devices & Controls for Pneumatic and Hydraulic Control Systems for OSHA & ANSI Compliance

www.pinnaclesystems.com (800) 569-7697

34

tech directory 2012

www.fluidpowerjournal.com | www.ifps.org

tech directory Listing 2012

Let PCI Put HIgH Pressure LeT PCI PuT hIgh Pressure bALL vALves TO wOrk fOr YOu. baLL vaLves to work for you.

PCI’S complete line of High Pressure Ball Valves are designed to reliably handle pressure up to 11,760 PSI.

PCI’S complete line of High Pressure Ball Valves are designed to reliably handle pressure up to 11,760 PSI. StyleS: 2 way, 3 Way, Multi-Way, Split/Full Flange Wafer Style, Panel Mount, Direct Mount.

MaterialS: Carbon Steel or Stainless Steel.

SealS: Delrin Ball Seats and Vita “O” Rings standard with various others available.

OptiOnS: Lockable Handles, Actuators.

StyleS: 2 way, 3 Way, Multi-Way, Split/ Full Flanged, Wafer Style, Panel Mount, Direct Mount.

MaterialS: Carbon Steel or Stainless Steel.

SealS: Delrin Ball Seats and Viton “O” Rings standard with various others available.

OptiOnS: Lockable Handles, Actuators.

CALL TODAY: 440.349.4020 Or 800.322.9527

PRESSURE COMPONENTS INC.

5101 NaimaN Parkway • SoloN, oH 44139 USa www.PreSSUrecomPoNeNtS.com

preSSure COMpOnentS inC.

Call today: 440.349.4020 or 800.322.9527 www.pressurecomponents.com

www.ifps.org | www.fluidpowerjournal.com

tech directory 2012

35

Tech directory Listing 2012

SDSI

Systems Development/ Systems Integration

Made

in

USa

ModEl d20

ModEl d30

ModEl d40

ModEl d50

Hydraulic directional control ValVes

Rota-Cyl CoRpoRation p.o. Box 269 • 136 Stauffer Road • Bechtelsville, pa 19505 phone: 610-845-8001 • E-mail: sales@rotacyl.com

www.rotacyl.com *PDF Catalogs Available*

36

tech directory 2012

www.fluidpowerjournal.com | www.ifps.org

tech directory Listing 2012

FPM_tobul_final_ctp083011vX1A.indd 1

8/30/11 12:27 PM

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JOIN OUR TEAM

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As Womack Machine Supply continues to grow, we are looking for additional talent in Sales & Sales Management.

To learn more about joining the Womack Family, visit careers.womackmachine.com

tech directory 2012

37

1A Total Safety A & A Manufacturing Company Inc. ABZ, Inc. Activant Adsens Technology, Inc. Airline Hydraulics Air Logic Airmo, Inc. ALA Industries, Ltd. All Sensors Corp.

Allen Orton LLC Almo Manifold & Tool Company American Aerospace Controls, Inc. American Cylinder Co., Inc. American Sensor Technologies, Inc. AMETEK Automation & Process Technologies Anderson Metals Corp., Inc. Applied Industrial Technologies ARGO-HYTOS, Inc. ASCO Numatics Ashcroft Inc. ASI Inc. Assured Automation ATOS S.P.A. Attica Hydraulic Exchange Corp.

Automation Products, Inc. - Dynatrol Div. Automation Systems Interconnect, Inc. Axiomatic Technologies Corporation Balluff, Inc. Behringer Corp.

Beswick Engineering Co., Inc. Bimba Manufacuring Company Birmingham Hydraulics Inc. Bosch Rexroth Corporation Bosch Rexroth Pneumatics Brand Hydraulics Bray Controls, Div of BRAY Int’l Inc. Brennan Industries Inc. Burkert Fluid Control Systems CADSYM Canfield Connector Canimex inc.

Central Illinois Mfg. Co. (Cim-Tek) Filtration) CIM-TEK Filtration Clippard Instrument Laboratory, Inc. Coilhose Pneumatics Command Controls Corp.

Component Sourcing International LLC Concentric Rockford Inc. Continental Hydraulics ControlAir, Inc. Control Enterprises, Inc. Controlled Motion Solutions, Inc. Cox Instruments CPV Manufacturing, Inc. Cross Mfg. Inc. CS Unitec, Inc. Custom Sensors & Technologies (CST) Cyber-Tech, Inc. Dakota Fluid Power DEL Hydraulics DELTA Computer Systems, Inc. Differential Pressure Plus, Inc. Donaldson Company Inc. Duplomatic Hydraulics Dwyer Instruments, Inc. Dylix Corporation Dynamic Fluid Components, Inc. DynaQuip Controls EAO Corporation Eaton Hydraulics Electro-Sensors Inc. Electroswitch Elma Electronic Emmegi Heat Exchangers, Inc. Energy Manufacturing Co., Inc. Enfield Technologies Engineered Sales, Inc. Engineering Technology Services, LLC Exair Corporation Fabco-Air, Inc. Falcon Surplus FAMIC Technologies Inc. Faster Inc. FCI Automation Feroy Company, Inc. Flint Hydraulics, Inc. Flodraulic Group Flodyne Controls, Inc. Flow Technology Flow-Tek, A Subsidiary of BRAY Int’l Inc. Fluid Line Products, Inc. Fluid Power Connections Fluid Power, Inc. Fluid Power Products, Inc. Fluidtechnik USA,Inc. FluiDyne Fluid Power Force America Futek Advanced Sensor Technology Inc. FW Murphy Galtech Canada Inc. Gefran Gems Sensors & Controls Gemu Valves Global Servo Hydraulics

38

tech directory 2012

x

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tech directory 2012

39

lS eF yst req em uen s rs c ctr y -A Dri ic M C ves o Ele tor ctr sica DC lA En ctu clo ato sur rs es Fie ldb us Tec Fie hn ldb olo us gie Tec sFie hn AS olo ldb I gie us Tec sFie De hn vic olo ldb eN gie us et sTec Fie Eth hn ldb o ern log Pro us T e ies t IP fiD ech - In riv ter e nolog link Fie i e sldb BT Pro us fib Tec us Hu hn D ma olo P, ngie Ma sJo Se chi yst r n c eI os ick nte -A rfa Jo nal ces yst og ick (HM Sig - In nal I’s) Jo teg yst ral ick A mp -N Jo lifi on yst er - co ick nta -P cti Lig ote ng ht (Ha n tio Cu ll) me rta ter ins Lig hts , Il lum Po ina ten tio tio n m ete Po ten rs -L tio ine me ar ter sPu shb utt on

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Circle 477

tech directory 2012

x

x

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IN

40

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CE

Granzow GS Hydraulics, Inc. Hach Flow Meter Products & Services HAWE Hydraulics Haydon Kerk Motion Solutions, Inc. HED Inc. (Hydro Electronic Devices) Hedland Flow Meters Helium Leak Testing, Inc. Hercules Sealing Products High Country Tek, Inc. Himmelstein, S. & Co. HKX, Inc. HL Hydraulic, Inc. HMI Systems Hoffer Flow Controls Humphrey Automation Inc. Humphrey Products Company HUSCO International Inc. Hydac Inc. Hydradyne Hydraulics LLC Hydramation, Inc. Hydraulic Resources, Inc. Hydraulic Supply Co. Hydrauliques Continental IEEE, Inc. IFM Efector Inc. Industrial Hydraulic Services Industrial Nut Corp.

Industrial Servo Hydraulics, Inc. Industrial Specialties Mfg., Inc. Innotek Corporation Integrated Hydraulics, Inc. IQ Valves (Formerly Teknocraft) ITT JH Technology, Inc. J.R. Merritt Controls Inc. Kanamak Hydraulics Inc. Kavlico Keller America, Inc. Kraft Fluid Systems, Inc. Kurz Instruments, Inc. La-Man Corporation LCR Electronics Lynch Fluid Controls, Inc.

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Circle 478

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Sensing your needs - PVS SENSORS & DYNAMIC has it all

Circle 479

tech directory 2012

41

M & M Rogness Equipment Company Macro Sensors Madison Company Magnetek Maradyne Corp./Marion Fluid Power Div. Mark Hydraulic Company Inc. Marsh Bellofram Marvel Consultants Inc. Max Machinery Measurement Specialties Mid-West Instrument Mobile Hose & Hydraulic Supply Moog Motion Industries MP Filtri USA, Inc. MROStop LLC MTS Sensors MTS Systems Corporation Murrelektronik, Inc. Nachi America NBB Controls, Inc. NC Servo Technology Net Motion Inc. Norgren Norstat Inc. NOSHOK, Inc. Novotechnik U.S. Inc. Nycoil Company OEM Controls, Inc. Oil-Rite Corporation O’Keefe Controls Co. Omega Engineering Optex-FA Panasonic Electric Works Corp. of America PCB Piezotronics Inc. P.E.P. Peter Paul Electronics PHD, Inc. Pinnacle Systems, Inc. Pneumatic Cylinders & Couplers Inc. (PNEU C&C) Poclain Hydraulics Inc. Pressroom Electronics Pressure Components Inc. Pressure Controls Inc. Pressure Systems, Inc. Progressive Hydraulics, Inc. Proportion-Air, Inc. Pulsafeeder, Inc. PWM Controls Inc. Rego Cryo-Flow Products Rite pro, Inc., A Subsidiary of BRAY Int’l Inc. Sang-A Pneumatic Corp.

Sauer-Danfoss Schmalz Inc. Schroeder Industries Schunk Inc. Scorpion Technologies Ltd. Semiconductor Circuits Inc. Servo-Tek Products Company Inc. S.G. Morris Co. SICK, Inc. Sierra Instruments, Inc. Smalley Steel Ring Co. Source Fluid Power Spartan Scientific SPC Sang-A Pneumatic Corp.

Spectronics Corporation Spencer Fluid Power Spirax Sarco Suco Technologies, Inc. Sun Hydraulics Corporation SVF Flow Controls, Inc. Swift-Cor Precision, Inc. Switches Unlimited Switching Solutions Inc. SymCom, Inc. The Knotts Company The Oilgear Company Thomas Products LTD TopWorx UFI Filters UHI, LTD Ultraflo Corporation United Electric Controls Universal Grinding Corp.

Universal Hydraulics International, LTD Validyne Engineering Corp.

VEST, Inc. Vindum Engineering, Inc. Voith Turbo Inc. VOSS Fluid GmbH Wandfluh of America, Inc. Webster Instruments Weiss Instruments, Inc. West Coast Fluid Power Western Hydrostatics, Inc. Western Integrated Technologies, Inc. WIKA Instrument Corporation Wilson Company Winters Instruments Wojanis Supply Co. Womack Machine Supply Company Young Powertech Inc. Yuken/ALA Industries

42

tech directory 2012

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tech directory 2012

43

g n i t n e m e l Imp _ e g d E g n i Cutt g n i y e v n o C y g o l o n h Tec A How

In

e d i u -To G

todayâ&#x20AC;&#x2122;s business climate, food processing and packaging companies are responding to the growth in raw material and labor costs by looking for new ways to use faster and more efficient processes. Even a brief delay in design, production, or distribution can severely limit sales and profitability. Implementing

cutting-edge solutions allows companies to use a hands-off approach where humans had previously been required.

They can then reallocate personnel to other areas of their businesses. One area where this type of implementation has the largest return on investment is in the conveying process. The conveying process has emerged as a particular area of focus because labor costs, speed, and efficiency are drastically affected with the implementation of one specific automation process: the multiposition cylinder. The pneumatic multiposition cylinder (MPC) is an actuator whose function reduces labor costs while increasing speed and efficiency.

Infinite Number of Adjustable Stroke Positions The heart of the MPC is the ability to provide unlimited actuator positions while requiring only an analog input, 24-Vdc power, and pressure. In the past, electric and hydraulic actuators were the only options for applications demanding an infinite number of stroke positions. These actuators are not always the best solution due to the expense and the likelihood of shock-type loading, which electric actuators are not always able to withstand. This cutting-edge technology now provides a cost-effective and highly efficient alternative.

Using a 4-20 mA or 0-10 Vdc input signal, the actuator stroke adjusts automatically. For example, for a 100-mm stroke, sending a 5-Vdc input signal on the 0-10 Vdc type will extend the MPC by 50 mm. Once the MPC reaches the desired position, it is pneumatically locked until the input signal is changed. By opening and closing the integrated valves, it

will keep the target position. If the position changes due to an external force, it will automatically return to the desired position.

In order to accomplish this, the MPC utilizes an integrated cylinder, solenoid valve, linear sensor, and controller (Fig. 1). The controller receives position information from the linear displacement sensor.

The controller takes the analog input signal and controls the actuator position with a series of valve shifts to either supply air or exhaust air to the actuator. When the piston reaches the desired position, the controller shifts the valves to capture pressure on both sides of the piston. This pneumatically locks the actuator in the desired position effectively.

There is also a 1-5 Vdc output signal that confirms the desired set point is reached and held.

r, uct Manage miller, Prod a

By Pam Ohle ic er Am of .

SMC Corp

How It Saves Money

• Decreased labor costs – The MPC performs automatically what has historically been completed by a manual method. In conveyor systems of any size, this can be a labor-intensive job. The manual method increases change over time and downtime. The labor savings experienced are due to a simple, automatic system offered by the MPC (Fig. 2).

• Lower machine costs – With an integrated valve and linear displacement sensor, additional valves and position sensors are not required.

• Simple set up – All that is needed is supply pressure, an analog input signal, and a power supply. The MPC takes care of the rest.

• Decreased change management – When updates and changes are easy to make, they take less time. MPC enables on-the-fly updates. Further, because you supply the input signal, position is repeatable within 1 mm.

fig. 1

Decreased Complexity

The ease of installation and the ability to make changes quickly and easily increase line efficiency. When compared to alternative solutions, such as electric actuators, the simplicity of the MPC is clear: limited upfront requirements and ease of installation (Fig. 3).

1. To initiate action, input pressure, a 24-Vdc power supply, and an analog input signal are the only requirements. A 1-5 Vdc output signal confirms when the position is reached.

2. To mount, four mounting holes on the bottom of the unit and four on the front plate are available. Electrical connection is accomplished with an M12 – 4 pin quick connect.

3. Three ports, fitted with 0.25" quick-connect fittings, are the final connection point: one for supply pressure, one for air exhaust, and one for system venting.

4. Simple inputs allow for changes to be made with a push of a button.

The ability to make changes results in a more efficient system. In an air conveying system, an air conveyor blows air under aluminum cans. In order for the air conveyor to function, the height of ceiling must change when different size cans advance into the conveyor. In a traditional system, a three-position cylinder is used. This cylinder allows for the adjustment of only three types of cans. With an infinite number of can heights available, the flexibility of the conveyor line is greatly increased (Fig. 4).

fig. 2

fig. 3

fig. 4

Lowered Upfront and Ongoing Component Costs

With applications requiring multipositioning of the cylinder, there are limited alternatives to electric actuators. With an entry cost of under $500, MPC is highly economical and easier to set up and maintain.

For example, in Fig. 5, a typical pneumatic method is shown in a conveyor lane diverter, consisting of a pneumatic brake cylinder with multiple position sensors mounted to the actuator. When the piston is in the proper position, the position sensor is triggered to send a signal to a valve. The valve shifts to engage the brake, which holds the cylinder in position. Manual labor is needed to ensure constant and consistent accuracy with this solution.

Next Steps

A single update in machinery can dramatically affect output and costs. With the ability to provide multipositions pneumatically, the MPC now offers an inexpensive alternative to electric actuation. fig

.5

For more n, informatio visit .com. www.smcusa

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tech directory 2012

45

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(View a sample of our paperless digital edition at www.fluidpowerjournal.com) 4. What is the primary business activity at this location?

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

My company should be advertising in or submit an article to the Fluid Power Journal. Please contact this person: Name:_________________________________________Title:___________________________________ Phone:______________________________________________

Circle 482

Providing custom products and value-added assemblies based on the most successful miniature pneumatic line in the world!

Wire leads to be 7” + 1/8” with crimped terminal 10258333-2

“Cleaned for Oxygen Service” internal components Stainless Steel coil housing

5-volt coil less than 0.5 watt

Brass base (no plating needed)

FKM seals

Mounting holes

1/2” max

Toggle-operated manual by-pass valve in base

Integrated needle valve for precise flow control

CUSTOM er

s n o i t u l so Circle 480

Clippard Instrument Laboratory, Inc. Cincinnati, OH

1-877-245-6247 www.clippard.com/customsolutions