Page 1

MODEL 128 & 128L POWER STRAP ROCKER CLAMP QUICK DIE CHANGE (QDC)

N118 W18251 Bunsen Drive Germantown,WI 53022 (262) 250-4410 • Fax (262) 250-4409

pfa-inc.com Copyright ©2018 PFA, Inc. All rights reserved. Reproduction or use in any manner of editorial or graphic content herein without the express written permission of PFA, Inc. is strictly prohibited. Every effort has been made to ensure the information within this publication is complete and accurate at the time of printing.

S3015 RC-425+425L REV A - 8/18


TABLE OF CONTENTS 1. Description. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 2. Installation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 3. Operation – Die Exchange Sequence . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 4. Maintenance. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 5. Seal Replacement Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 6. Recommended Spare Parts. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 7. Drawing 128. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 8. Drawing 128PD. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 9. Drawing 128L. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 10. Drawing 128LPD. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 11. DWG CLAMPSAFE-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 12. DWG CLAMPSAFE-3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

pfa-inc.com MODEL 128 & 128L | ROCKER CLAMP | PAGE 3


DESCRIPTION 1. Please refer to drawings 128/128PD and 128L/128LPD. 2. The Model 128 and 128L are adjustable rocker clamps with the piston, Item 4 or 5, located at the rear of the clamp and pushing upward on clamp lid, Item 2 or 3. 3. The mechanical lock screw, Item 6 (128L only), is threaded into the lid. When screwed tightly against the base plate, Item 1 or 2, it retains clamping force when hydraulic pressure is shut off. Model 128 are non-locking and require hydraulic pressure to be maintained at all times. 4. Clamping height is provided as part of the part number when the clamp is ordered and achieved by various combinations of nose spacer bars, Item 3 or 4, attached to the clamp lid, Item 2 or 3, and clamp body spacers, Item 22, attached to the bottom of the clamp base plate, Item 1 or 2. 5. A compression spring, Item 6 or 8, located at the front of the clamp pushes against the lid and keeps the lid, Item 2 or 3, elevated when in the depressurized position. 6. Clamps are also available in a Dual Port configuration, where half the pistons are supplied with the front port and the other half by the rear port. This allows for separate hydraulics zone to power half of the clamp, which supports hydraulic redundancy for loss of hydraulics when only two clamps are used in a non-locking configuration. These clamps are specified as 128D.

INSTALLATION 1. Verify clamp opening is slightly greater than clamping height, but less than approximately .180”. See notes #3 and #6 on drawings 128 and 128L, as appropriate. 2. Verify that T-nuts are sized properly for T-slots and that Socket Head Cap Screws (SHCS) ¾”-10 are of the proper length. a. T-nut neck width should be approximately the width of the narrow part of the T-slot. b. The socket head cap screws (SHCS), when fully tightened, should be flush with or protrude below the bottom of the T-nut. If the screws are too long, they will drag on the bottom of the T-slot; if they are too short, strength will be compromised. 3. After ensuring proper T-nut engagement, set sliding gap by removing SHCS and applying removable thread locking compound (Locktite) to SHCS and reinserting into T-nut with clamp in T-slot. Tighten until the clamp is no longer moveable along T-slot, then back away slightly until the clamp slides snugly in the T-slot. The goal is to keep the gap minimal, yet have good movement of the clamp. See note #3 on Drawings 128 and 128L, as appropriate. 4. Attach hydraulic hoses. Do not overtighten fittings.

pfa-inc.com MODEL 128 & 128L | ROCKER CLAMP | PAGE 4


OPERATION – DIE EXCHANGE SEQUENCE Read the following procedure keeping in mind your company’s specific die exchange procedures. Then integrate the following steps to meet your specific requirements.

Note: For Locking (128L) clamps, hydraulics will need to be reconnected to reclamp, unlock, and release the clamps. PLEASE REFER TO 128 AND 128L DRAWINGS WHEN FOLLOWING THE SEQUENCE BELOW: 1. Jog ram to bottom of stroke and prepare for die removal. 2. For locked hydra-mechanical clamps (128L), connect hydraulics and apply 5000 psi hydraulic pressure to clamps. Press booster button (HM) to boost pressure.

Note: For locked clamps, the pressure used to release the clamps must be equal to or greater than the pressure used to actuate the clamps. 3. For locked clamps (128L), turn the lock screws, Item 20, counter-clockwise away from clamp base plates. 4. Release hydraulic pressure to unclamp die. 5. Move clamps away from die. 6. Jog ram to full up stroke. 7. Remove die. 8. Place next die on bolster. 9. Make required shut height adjustment and jog ram to bottom of stroke. 10. Move clamps to die ensuring a small gap is present (confirms correct clamp height to clamp plate thickness match).

CAUTIONS: • CLAMPING POINT MUST TOUCH DIE AND BE ENGAGED FULLY - AT LEAST 1/2” • LIMIT CLAMPING RANGE AS EXPLAINED ON DWG 128 AND 128L • THE CLAMP MUST BE PERPENDICULAR TO THE DIE – FULL NOSE SPACER BAR ENGAGEMENT. 11. Apply 5,000 psi hydraulic pressure to bolster mounted clamps then to ram mounted clamps. 12. For Locking Clamps (128L), set lock screws, Item 20, by manually turning clockwise – inward, until the lock screw is firmly in contact with clamp base plate. 13. For Locking Clamps (128L) only, release hydraulic pressure. 14. Examine all clamps for proper position and confirm that all clamps are engaged by attempting to move them manually. 15. Commence stamping when ready.

pfa-inc.com MODEL 128 & 128L | ROCKER CLAMP | PAGE 5


MAINTENANCE 1. Periodically check hoses for signs of wear. 2. Replace hoses if necessary. 3. Examine clamps for damage. 4. Check mechanical Lock Screws to make sure they turn easily. 5. Chase any damaged threads if necessary. 6. Check for hydraulic leaks. Tighten fittings or replace hoses as necessary. 7. Change seals as needed. See enclosed for seal replacement procedure. 6. If a pipe thread fitting is removed, apply new thread tape before reassembling fitting.

pfa-inc.com MODEL 128 & 128L | ROCKER CLAMP | PAGE 6


SEAL REPLACEMENT PROCEDURE CAUTION: WEAR SAFETY GLASSES PLEASE REFER TO DRAWINGS 128PD AND 128LPD AND DO THE FOLLOWING: 1. Unscrew Item 18 or 23, SHC Screw from Item 19 or 24,25,26, T-nut. This is easy to do while clamp is in a T-slot. 2. Move clamp to a suitable work area. 3. Turn clamp upside down and extend Item 5 or 7, Spring, with a small tool with a hook at the end and remove Item 11 or 14, Roll Pin. There are five Extension Springs. 4. Remove the four Rocker Screws, Item 14 or 17, Washer Alignment, Item 15 or 19, and Disc Spring, Item 16 or 20. 5. Separate the two clamp halves. Remove the five Compression Springs, Item 6 or 8, if necessary. 6. Extract the six Pistons, Item 4 or 5, if possible. If they are too recessed, apply slight hydraulic pressure to push the pistons out. Use extreme caution and cover the pistons with shop rags or other material. Dispose of oily rags in a proper manner. 7. Examine pistons and cylinders. Carefully remove metal shavings or other debris which may have caused the leak. Polish cylinder if necessary. 8. Apply Magnalube-G lubricant and replace O’ Rings, Item 7 or 9 and Backup Ring, Item 8 or 11. Make sure O’ Rings is nearest the bottom of piston. 9. Reassemble clamp in reverse sequence and be careful to observe the following: a. Be careful when inserting pistons. Avoid any sharp edges. b. Position Alignment Washer, Item 15 or 19 and Disc Spring, Item 16 or 20 as shown on drawing. c. It is critical that the upper clamp body is installed properly. Observe Note 13 instructions on drawing 128PD and 128LPD. d. Place a 1.5” steel spacer block under nose area (nose spacer bar and bottom spacer plate shim removed) when installing rocker screws. e. Apply removable thread locking compound (Locktite) to the Rocker Screws, Item 4. f.

Torque screws to specified torque (See note 13).

g. When re-installing clamp on press, refer to Installation Section B. h. If a pipe thread is removed, clean and reapply Teflon thread tape before reinstalling.

CAUTION: MAKE SURE BOTH ROCKER SCREWS ARE TIGHTENED EXACTLY THE SAME. IF NOT, ONLY ONE SCREW WILL CARRY THE LOAD AND CLAMP FAILURE MAY OCCUR. Note: Item 21, Rest Button, is present in 128L clamp bodies. It is used when the clamp is used in the Hydra-Mechanical configuration.

pfa-inc.com MODEL 128 & 128L | ROCKER CLAMP | PAGE 7


RECOMMENDED SPARE PARTS For Non-Locking Clamps (128) Please refer to parts contained in Seal Replacement Kit 128PD-SEAL and Refurbish Kit Part# 128PD-RFB as shown on drawing 128PD. For Locking Clamps (128L) Please refer to parts contained in Seal Replacement Kit 128LPD-SEAL and Refurbish Kit Part# 128LPD-RFB as shown on drawing 128LPD.

pfa-inc.com MODEL 128 & 128L | ROCKER CLAMP | PAGE 8


CONFIDENTIAL: The information shown on this sheet is confidential. Permission to use, reproduce or transmit in any way not specifically authorized is expressly withheld.

DISCLAIMER: Illustrative drawings, CAD models, and information described herein is proprietary intellectual property of PFA, Inc., accurate to the company’s knowledge at time of printing, and intended for reference only. Specifications are subject to change without notice. If the information obtained from this document is critical to a specific application, it should be confirmed by contacting PFA, Inc. PFA Terms of Sale apply.

4.50 1.16

1.75 12.00

6

2.75 CLH + APPROX. .18 GAP 7

0.65 1.15

8

OPTIONAL HANDLE

8. THE CLAMP IS AVAILABLE WITH A HANDLE (MODEL RC-128H) 7. FOR VARIED CLAMP HEIGHTS, NOSE SPACRES (SHOWN) AND BASE SPACERS (NOT SHOWN) ARE ADDED TO ACHIEVE DESIRED NOMINAL CLAMP HEIGHT SPECIFIED IN PART NUMBER. NOMINAL CLAMP HEIGHT INCLUDES A NOMINAL .18" GAP FOR EASE OF CLAMP MOVEMENT.

4.47 1.50

6. MAXIMUM CLAMPING HEIGHT IS 1.75 WITHOUT A NOSEPIECE. A SPACER PLATE MAY BE ADDED UNDER THE CLAMP TO INCREASE THIS MAXIMUM CLAMPING HEIGHT, IF NECESSARY. 5. KEEP THE GAP BETWEEN THE CLAMP ROCKER AND THE DIE TO A MINIMUM. THE CLAMP STROKE, WHICH IS .36 MUST BE SUFFICIENT TO CLOSE THE GAP AT 3 AND 5 AND STILL APPLY FULL CLAMPING FORCE TO THE DIE. THEREFORE, THE GAP AT 5 SHOULD NOT EXCEED .18 WHICH IS 50% OF STROKE.

7/16-20 UNF 37° FLARE

4 7

5

DIE

TOP OF BOLSTER

4. A NOSEPIECE OF REQUIRED THICKNESS IS ATTACHED TO THE NOSE OF THE CLAMP ROCKER, IF NECESSARY, TO MATCH REQUIRED DIE CLAMPING RANGE. 3. THE STUD/T-BOLT IS ADJUSTED AT THE TIME OF INSTALLATION, SO THAT THE GAP BETWEEN THE T-NUT AND T-SLOT IS MINIMIZED, YET ALLOWING THE CLAMP TO BE EASILY MOVED. 2. CLAMPING FORCE IS 26,000 LBS. AT MAXIMUM HYDRAULIC PRESSURE OF 5000 PSI. 1. THE MODEL-128 IS A ROCKER CLAMP WHICH MAY BE FIXED MOUNTED, OR ATTACHED USING TWO T-NUTS. USE WITH DIES HAVING UNDERPLATES OR OTHER SUITABLE SURFACE ON WHICH THE CLAMP CAN GRIP.

3 GAP

ALTERNATIVE LOCATION FOR HYDRAULIC FITTING

0.62 3.25

T-NUT/SLOT SHOWN ROTATED 90Ā FOR CLARITY

MODEL 128 ROCKER CLAMP RC-128

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CONFIDENTIAL: The information shown on this sheet is confidential. Permission to use, reproduce or transmit in any way not specifically authorized is expressly withheld.

5 APPLY MAGNA-LUBE 'G' TO SEALS AND MOVING PARTS WHEN ASSEMBLING. 4 NOTE SEAL ORIENTATION (CRITICAL) SEE SHEET 2

DISCLAIMER: Illustrative drawings, CAD models, and information described herein is proprietary intellectual property of PFA, Inc., accurate to the company’s knowledge at time of printing, and intended for reference only. Specifications are subject to change without notice. If the information obtained from this document is critical to a specific application, it should be confirmed by contacting PFA, Inc. PFA Terms of Sale apply.

1 1 6 5 5 5 5 -

1 1 5 5 5 -

1 6 2 4 1 2 2 5 5 5 5 2

128UG ZZ36120 1604-12 3617-TAB 1687-8 3689-1 14406 3840 3582 3581 3700 3580 2816-1

USER GUIDE ACCROLUBE, 4cc TUBE ROLL PIN, 1/8 x .75 TEE NUT/STUD ASSY SCREW, SHC, 10-24 x .50 LONG HANDLE WELDMENT LOCK NUT BUSHING, SLEEVE .75 ID RETAINING RING, SPIRAL GUIDE BUSHING, PISTON PISTON SEAL PISTON, 1.186Ø REST BUTTON

6 -

-

1 2 2 6 6 2 2 2 2 1 1

1804-1 1785 1657-4 1658-16 1700-4 1620-6 L4255 3426 3436 3579 3584

CONNECTOR, 1/8 NPT - 37° FLARE PIPE PLUG, 1/8-27 NPT SET SCREW, 8-32 x .25 (SOFT TIP) SCREW, SET, 8-32 x 1.00 SPRING, EXTENSION SCREW, SHC 10-32 UNC x .375 LG LOCK PLATE, HEX NUT WASHER, BELLEVILLE, .762 ID ROCKER BAR BODY LID

QTY

3 THIS COLUMN SHOWS PARTS INCLUDED IN THE REFURBISH KIT (PART# 128PD-RFB) 2 THIS COLUMN SHOWS PARTS INCLUDED IN THE SEAL KIT (PART# 128PD-SEAL) 1 THIS COLUMN SHOWS PARTS INCLUDED IN THE BASIC MODEL-128 CLAMP. (REFERENCE ONLY)

RFB

3

QTY SEAL

2

QTY REF

PART NUMBER

DESCRIPTION

25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 ITEM

1

MODEL 128 ROCKER CLAMP RC-128PD

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CONFIDENTIAL: The information shown on this sheet is confidential. Permission to use, reproduce or transmit in any way not specifically authorized is expressly withheld.

DISCLAIMER: Illustrative drawings, CAD models, and information described herein is proprietary intellectual property of PFA, Inc., accurate to the company’s knowledge at time of printing, and intended for reference only. Specifications are subject to change without notice. If the information obtained from this document is critical to a specific application, it should be confirmed by contacting PFA, Inc. PFA Terms of Sale apply.

6 4 3 1

5 19 4

8

SEALS MUST BE INSTALLED AS SHOWN GAP DOWN

9

17 16

7

15 14

10 23

2 18 22

A

VIEW SCALE 3:1

13 10

MODEL 128 ROCKER CLAMP RC-128PD

PAGE 2 OF 2

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N118 W18251 Bunsen Drive, Germantown, WI 53022 | 262.250.4410 | pfa-inc.com


CONFIDENTIAL: The information shown on this sheet is confidential. Permission to use, reproduce or transmit in any way not specifically authorized is expressly withheld.

DISCLAIMER: Illustrative drawings, CAD models, and information described herein is proprietary intellectual property of PFA, Inc., accurate to the company’s knowledge at time of printing, and intended for reference only. Specifications are subject to change without notice. If the information obtained from this document is critical to a specific application, it should be confirmed by contacting PFA, Inc. PFA Terms of Sale apply.

7.5 5.5

12.00

6.31

1.75

4.5

6

2.75 CLH + APPROX. .18 GAP 7

0.62

7 FOR VARIOUS CLAMP HEIGHTS, NOSE SPACERS (SHOWN) AND BASE SPACERS (NOT SHOWN) ARE ADDED TO ACHIEVE DESIRED NOMINAL CLAMP HEIGHT SPECIFIED IN PART NUMBER. NOMINAL CLAMP HEIGHT INCLUDES A NOMINAL .18" GAP FOR EASE OF CLAMP MOVEMENT.

4.67 1.50

6 MAXIMUM CLAMPING HEIGHT IS 1.75 WITHOUT A NOSEPIECE. A SPACER PLATE MAY BE ADDED UNDER THE CLAMP TO INCREASE THIS MAXIMUM CLAMPING HEIGHT, IF NECESSARY.

1.16

3 THE STUD/T-BOLT IS ADJUSTED AT THE TIME OF INSTALLATION, SO THAT THE GAP BETWEEN THE T-NUT AND THE T-SLOT IS MINIMIZED, YET ALLOWING THE CLAMP TO BE EASILY MOVED.

MECHANICAL LOCK 4.37

5 KEEP THE GAP BETWEEN THE CLAMP ROCKER AND THE DIE TO A MINIMUM. THE CLAMP STROKE, WHICH IS .36 MUST BE SUFFICIENT TO CLOSE THE GAP AT 3 AND 5 AND STILL APPLY FULL CLAMPING FORCE TO THE DIE. THEREFORE, THE GAP AT 5 SHOULD NOT EXCEED .18 WHICH IS 50% OF STROKE. 4 A NOSEPIECE OF REQUIRED THICKNESS IS ATTACHED TO THE NOSE OF THE CLAMP ROCKER, IF NECESSARY, TO MATCH REQUIRED DIE CLAMPING RANGE.

8 OPTIONAL HANDLE

1.12

8 THE CLAMP IS AVAILABLE WITH A HANDLE (MODEL RC-128LH)

7/16-20 UNF 37° FLARE

4 5 7 DIE

TOP OF BOLSTER 3

ALTERNATE LOCATION FOR HYDRAULIC FITTING

0.62

GAP

3.25

T-NUT/SLOT SHOWN ROTATED 90° FOR CLARITY

2. CLAMPING FORCE IS 26,000 LBS. AT MAXIMUM HYDRAULIC PRESSURE OF 5000 PSI. 1. THE MODEL-128L IS A ROCKER CLAMP WHICH MAY BE FIXED MOUNTED OR SECURED USING TWO T-NUTS. USE WITH DIES HAVING UNDERPLATES OR OTHER SUITABLE SURFACE ON WHICH THE CLAMP CAN GRIP. AFTER ACTUATING HYDRAULIC PRESSURE THE MECHANICAL LOCK IS SET AND THE HYDRAULIC PUMP IS DISCONNECTED. THE MECHANICAL LOCK THEN RETAINS CLAMPING PRESSURE. HYDRAULIC PRESSURE MUST BE REAPPLIED IN ORDER TO OPEN THE MECHANICAL LOCK.

MODEL 128 ROCKER CLAMP RC-128L

PAGE 1 OF 1

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CONFIDENTIAL: The information shown on this sheet is confidential. Permission to use, reproduce or transmit in any way not specifically authorized is expressly withheld.

DISCLAIMER: Illustrative drawings, CAD models, and information described herein is proprietary intellectual property of PFA, Inc., accurate to the company’s knowledge at time of printing, and intended for reference only. Specifications are subject to change without notice. If the information obtained from this document is critical to a specific application, it should be confirmed by contacting PFA, Inc. PFA Terms of Sale apply.

7 6 5

4

7 APPLY ACCROLUBE TO SEALS AND MOVING PARTS WHEN ASSEMBLING. 6 THIS SPACER PLATE (NOT SHOWN) FOR ACHIEVING HIGHER CLAMP GRIP IS AVAILABLE AS A SEPARATE LINE ITEM. 5 THIS PART IS STANDARD AND SHIPPED WITH ALL CLAMPS. OTHER SIZES PER APPLICATION ARE SHIPPED IN ADDITION. 4 NOTE SEAL ORIENTATION (CRITICAL) SEE SHEET 2 3 THIS COLUMN SHOWS PARTS INCLUDED IN THE REFURBISH KIT (PART# 128LPD-RFB)

1 1 6 5 5 5 5 6 QTY RFB

3

1 1 5 5 5 QTY SEAL

2

1 REF 1 6 2 4 1 2 2 5 5 5 5 2 2 1 2 2 6 6 2 2 2 2 1 1

ZZ36120 128LUG 3781-XX 1028-5 1604-12 3617-TAB 1687-8 3689-1 14406 3840 3582 3581 3700 3580 2816-1 2814-100 1804-1 1785 1657-4 1658-16 1700-4 1620-6 L4255 3426 3436 3579 3584

ACCROLUBE, 4cc TUBE USER GUIDE SPACER PLATE-GUIDE (NOT SHOWN) SPACER BAR (NOT SHOWN) ROLL PIN .125Ø x .75 TEE NUT/STUD ASSY SCREW, SHC, 10-24 x .50 LG HANDLE WELBMENT LOCK NUT BUSHING, SLEEVE .75 ID RETAINING RING, SPIRAL GUIDE BUSHING, PISTON PISTON SEAL PISTON, 1.186Ø REST BUTTON LOCK SCREW ASSY, 5/8-18 UNC CONNECTOR, 1/8 NPT - 37° FLARE PIPE PLUG, 1/8-27 NPT SET SCREW, 8-32 x .25 (SOFT TIP) SCREW, SET, 8-32 x 1.00 SPRING, EXTENSION SCREW, SHC 10-32 UNC x .375 LNG LOCK PLATE, HEX NUT WASHER, BELLEVILLE, .762 ID ROCKER BAR BODY LID

27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1

QTY

PART NUMBER

DESCRIPTION

ITEM

REF

1

2 THIS COLUMN SHOWS PARTS INCLUDED IN THE SEAL KIT (PART# 128LPD-SEAL) 1 THIS COLUMN SHOWS PARTS INCLUDED IN THE BASIC MODEL-128L CLAMP. (REFERENCE ONLY)

MODEL 128 ROCKER CLAMP RC-128LPD

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CONFIDENTIAL: The information shown on this sheet is confidential. Permission to use, reproduce or transmit in any way not specifically authorized is expressly withheld.

DISCLAIMER: Illustrative drawings, CAD models, and information described herein is proprietary intellectual property of PFA, Inc., accurate to the company’s knowledge at time of printing, and intended for reference only. Specifications are subject to change without notice. If the information obtained from this document is critical to a specific application, it should be confirmed by contacting PFA, Inc. PFA Terms of Sale apply.

19 12 4 3 2

9

5

18

17

4

6

SEALS MUST BE INSTALLED AS SHOWN GAP DOWN

8 11 7

16 15

23 13

14

20 1

21

A

VIEW SCALE 3:1

22 10

VIEW

A MODEL 128 ROCKER CLAMP RC-128LPD

PAGE 2 OF 2

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CONFIDENTIAL: The information shown on this sheet is confidential. Permission to use, reproduce or transmit in any way not specifically authorized is expressly withheld.

DISCLAIMER: Illustrative drawings, CAD models, and information described herein is proprietary intellectual property of PFA, Inc., accurate to the company’s knowledge at time of printing, and intended for reference only. Specifications are subject to change without notice. If the information obtained from this document is critical to a specific application, it should be confirmed by contacting PFA, Inc. PFA Terms of Sale apply.

FLEXIBLE HOSE TO CLAMPS 4 PLACES

HOSE OR RIGID TUBE

BOLSTER OR RAM

4. ALL PFA QDC APPLICATION AND USE RECOMMENDATIONS ARE ADVISORY ONLY. PRODUCT SELECTION AND USE SHOULD BE IN ACCORDANCE WITH CUSTOMER SAFETY STANDARDS. PROPER FORM, FIT AND FUNCTION ARE THE RESPONSIBILITY OF THE CUSTOMER. 3. USE WITH PRESSURE SENSOR TO STOP PRESS IF HYDRAULIC PRESSURE DROPS BELOW PRESET LEVEL.

TO HYDRAULIC PUMP CONTROL (HC) WITH TWO CIRCUITS (2 ZONE), CHECKED SUPPLY AND LOW PRESSURE CUTOFF SENSOR/SWITCH EXAMPLE: PFA MODEL HC-120S-PS

2. HYDRAULIC CHECK VALVE LOCATED AT CONTROL VALVE FOR EACH CIRCUIT. 1. CLAMPS POWERED BY INDEPENDENT DIAGONALLY OPPOSITE HYDRAULIC CIRCUITS (ZONES). LOSS OF PRESSURE IN ONE CIRCUIT DOES NOT AFFECT THE OTHERS. NOTES: UNLESS OTHERWISE SPECIFIED

CLAMPSAFE 1 HYDRO CIRCUITS DIAGONAL

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CONFIDENTIAL: The information shown on this sheet is confidential. Permission to use, reproduce or transmit in any way not specifically authorized is expressly withheld.

DISCLAIMER: Illustrative drawings, CAD models, and information described herein is proprietary intellectual property of PFA, Inc., accurate to the company’s knowledge at time of printing, and intended for reference only. Specifications are subject to change without notice. If the information obtained from this document is critical to a specific application, it should be confirmed by contacting PFA, Inc. PFA Terms of Sale apply.

FLEXIBLE HOSE TO CLAMPS 6 PLACES

HOSE OR RIGID TUBE

BOLSTER OR RAM

4. ALL PFA QDC APPLICATION AND USE RECOMMENDATIONS ARE ADVISORY ONLY. PRODUCT SELECTION AND USE SHOULD BE IN ACCORDANCE WITH CUSTOMER SAFETY STANDARDS. PROPER FORM, FIT AND FUNCTION ARE THE RESPONSIBILITY OF THE CUSTOMER. 3. USE WITH PRESSURE SENSOR TO STOP PRESS IF HYDRAULIC PRESSURE DROPS BELOW PRESET LEVEL. 2. HYDRAULIC CHECK VALVE LOCATED AT CONTROL VALVE FOR EACH CIRCUIT.

TO HYDRAULIC PUMP CONTROL (HC) WITH TWO CIRCUITS (2 ZONE), CHECKED SUPPLY AND LOW PRESSURE CUTOFF SENSOR/SWITCH EXAMPLE: PFA MODEL HC-120S-PS

1. CLAMPS POWERED BY INDEPENDENT DIAGONALLY OPPOSITE HYDRAULIC CIRCUITS (ZONES). LOSS OF PRESSURE IN ONE CIRCUIT DOES NOT AFFECT THE OTHERS. NOTES: UNLESS OTHERWISE SPECIFIED

CLAMPSAFE 1 HYDRO CIRCUITS DIAGONAL

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N118 W18251 Bunsen Drive, Germantown, WI 53022 | 262.250.4410 | pfa-inc.com


CONFIDENTIAL: The information shown on this sheet is confidential. Permission to use, reproduce or transmit in any way not specifically authorized is expressly withheld.

DISCLAIMER: Illustrative drawings, CAD models, and information described herein is proprietary intellectual property of PFA, Inc., accurate to the company’s knowledge at time of printing, and intended for reference only. Specifications are subject to change without notice. If the information obtained from this document is critical to a specific application, it should be confirmed by contacting PFA, Inc. PFA Terms of Sale apply.

FLEXIBLE HOSE TO CLAMPS 8 PLACES

HOSE OR RIGID TUBE

BOLSTER OR RAM

4. ALL PFA QDC APPLICATION AND USE RECOMMENDATIONS ARE ADVISORY ONLY. PRODUCT SELECTION AND USE SHOULD BE IN ACCORDANCE WITH CUSTOMER SAFETY STANDARDS. PROPER FORM, FIT AND FUNCTION ARE THE RESPONSIBILITY OF THE CUSTOMER. 3. USE WITH PRESSURE SENSOR TO STOP PRESS IF HYDRAULIC PRESSURE DROPS BELOW PRESET LEVEL.

TO HYDRAULIC PUMP CONTROL (HC) WITH TWO CIRCUITS (2 ZONE), CHECKED SUPPLY AND LOW PRESSURE CUTOFF SENSOR/SWITCH EXAMPLE: PFA MODEL HC-120S-PS

2. HYDRAULIC CHECK VALVE LOCATED AT CONTROL VALVE FOR EACH CIRCUIT. 1. CLAMPS POWERED BY INDEPENDENT DIAGONALLY OPPOSITE HYDRAULIC CIRCUITS (ZONES). LOSS OF PRESSURE IN ONE CIRCUIT DOES NOT AFFECT THE OTHERS. NOTES: UNLESS OTHERWISE SPECIFIED

CLAMPSAFE 1 HYDRO CIRCUITS DIAGONAL

PAGE 3 OF 3

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CONFIDENTIAL: The information shown on this sheet is confidential. Permission to use, reproduce or transmit in any way not specifically authorized is expressly withheld.

DISCLAIMER: Illustrative drawings, CAD models, and information described herein is proprietary intellectual property of PFA, Inc., accurate to the company’s knowledge at time of printing, and intended for reference only. Specifications are subject to change without notice. If the information obtained from this document is critical to a specific application, it should be confirmed by contacting PFA, Inc. PFA Terms of Sale apply.

MODEL 392, MODEL-4197-3 C CHECK VALVE ASSEMBLY SCALE 2:1 1/4-20 SCREW

1

0.75 TOP VIEW 1.50 1.00

2

0.25

1

Model 201

Model 201

0.43

CLAMP

STUD

TO CLAMP

2.25

PFA, INC. Ph: 262-250-4410

DIE SUB-PLATE

P

P/T

PRESSURE CIRCUITS

1.39

CHECK VALVE P/N 4197-3 C

RELEASE

TO CLAMP

TO NEXT CLAMP

TO CLAMP

PFA, INC. Ph: 262-250-4410

PFA, INC. Ph: 262-250-4410

PRESSURE

PRESSURE

CIRCUITS

CIRCUITS

CHECK VALVE P/N 4197-3 C

CHECK VALVE P/N 4197-3 C

RELEASE

RELEASE

TO NEXT CLAMP FRONT VIEW

PILOT CIRCUIT (PC) 5,000 PSI HYDRAULIC PRESSURE TO CLAMP (STEEL TUBE OR HOSE) 5,000 PSI HYDRAULIC PILOT CIRCUIT TO OPEN CLAMP (STEEL TUBE OR HOSE)

2

FLEXIBLE HOSE TO CLAMP.

1 CLAMP SHOWN IN THESE SCHEMATICS IS A MODEL-201 HYDRAULICALLY ACTUATED SPRING RELEASE DESIGN. SCHEMATIC APPLIES TO ALL CLAMPS WITH EXTERNALLY MOUNTED PILOT OPERATED CHECK VALVES. NOTES: UNLESS OTHERWISE SPECIFIED

CLAMPSAFE 3 HYDRO CIRCUIT W/ CHECK VALVES

PAGE 1 OF 3

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N118 W18251 Bunsen Drive, Germantown, WI 53022 | 262.250.4410 | pfa-inc.com


CONFIDENTIAL: The information shown on this sheet is confidential. Permission to use, reproduce or transmit in any way not specifically authorized is expressly withheld.

RELEASE

RELEASE

CHECK VALVE P/N 4197-3 C

CHECK VALVE P/N 4197-3 C

CIRCUITS

CIRCUITS

PRESSURE

PRESSURE PFA, INC. Ph: 262-250-4410

PFA, INC. Ph: 262-250-4410

TO CLAMP

TO CLAMP

FLEXIBLE HOSES TO EACH CLAMP

DISCLAIMER: Illustrative drawings, CAD models, and information described herein is proprietary intellectual property of PFA, Inc., accurate to the company’s knowledge at time of printing, and intended for reference only. Specifications are subject to change without notice. If the information obtained from this document is critical to a specific application, it should be confirmed by contacting PFA, Inc. PFA Terms of Sale apply.

HOSE OR RIGID TUBE

6

PILOT CIRCUIT

CLAMP

8 CLAMPING CIRCUIT

T-SLOT

7 BOLSTER OR RAM

10 T-OFF TO CONNECT PRESSURE SENSOR, IF USED. (SEE MORE DATA ON PAGE 3)

TO CLAMP PFA, INC. Ph: 262-250-4410

PRESSURE CIRCUITS

TO CLAMP PFA, INC. Ph: 262-250-4410

PRESSURE CIRCUITS

CHECK VALVE P/N 4197-3 C

CHECK VALVE P/N 4197-3 C

RELEASE

RELEASE

HYDRAULIC POWER AND CONTROL MODULE

8. IF THIS LINE BREAKS (PILOT CIRCUIT) IT MUST BE REPAIRED BEFORE CLAMPS CAN BE OPENED. (IN AN EMERGENCY, HOSE FITTINGS AT CLAMPS COULD BE REMOVED TO ALLOW HYDRAULIC FLUID TO ESCAPE AND THE CLAMPS TO OPEN.) 7. IF THIS LINE BREAKS ALL CLAMPS WILL RETAIN CLAMPING PRESSURE. IF INSTALLED, PRESSURE SWITCH WILL STOP PRESS. 6. IF THIS HOSE BREAKS THIS CLAMP WILL OPEN BUT ALL OTHER CLAMPS RETAIN CLAMPING PRESSURE. IF INSTALLED, PRESSURE SWITCH WILL SENSE PRESSURE DROP AND STOP PRESS. 5. USE WITH PRESSURE SENSOR TO STOP PRESS IF HYDRAULIC PRESSURE DROPS BELOW PRESET LEVEL. PRESSURE SENSOR IS TYPICALLY PROVIDED ON MAIN PRESSURE LINE IN CONTROLLER (PS). PRESSURE SENSORS CAN BE CONNECTED TO INDIVIDUAL CIRCUITS AS DESIRED (SEE PAGE 3).

10. MANIFOLD P/N 1068 CAN BE INSTALLED ANYWHERE ALONG THE CLAMPING AND RELEASE CIRCUITS. 9. ALL PFA QDC APPLICATION AND USE RECOMMENDATIONS ARE ADVISORY ONLY. PRODUCT SELECTION AND USE SHOULD BE IN ACCORDANCE WITH CUSTOMER SAFETY STANDARDS. PROPER FORM, FIT AND FUNCTION ARE THE RESPONSIBILITY OF THE CUSTOMER.

4. NOTE THAT CHECK VALVE IS INSTALLED NEAR EACH CLAMP. 3. CLAMPS ARE POWERED BY THE CLAMPING CIRCUIT AND OPENED BY THE PILOT CIRCUIT. NOTES: UNLESS OTHERWISE SPECIFIED

CLAMPSAFE 3 HYDRO CIRCUIT W/ CHECK VALVES

PAGE 2 OF 3

REV -

N118 W18251 Bunsen Drive, Germantown, WI 53022 | 262.250.4410 | pfa-inc.com


CONFIDENTIAL: The information shown on this sheet is confidential. Permission to use, reproduce or transmit in any way not specifically authorized is expressly withheld.

DISCLAIMER: Illustrative drawings, CAD models, and information described herein is proprietary intellectual property of PFA, Inc., accurate to the company’s knowledge at time of printing, and intended for reference only. Specifications are subject to change without notice. If the information obtained from this document is critical to a specific application, it should be confirmed by contacting PFA, Inc. PFA Terms of Sale apply.

TO CLAMP POWER

HOSE SAME CIRCUITRY AS ILLUSTRATED BELOW 1/4-20 MOUNTING HOLES

TO CLAMP PFA, INC. Ph: 262-250-4410

TO OTHER CHECK VALVES POWER (CLAMP) CIRCUIT

PRESSURE CIRCUITS CHECK VALVE P/N 4197-3 C

TO CLAMP CIRCUIT #1 RETURN

PILOT

POWER

CIRCUIT #2 (CLAMP) FROM POWER & CONTROL MODULE (RAM CLAMPS) CIRCUIT #2 (UNCLAMP) FROM POWER & CONTROL MODULE

CIRCUIT #1 (CLAMP) FROM POWER & CONTROL MODULE (BOLSTER CLAMPS)

RELEASE

TO OTHER CHECK VALVES PILOT (UNCLAMP) CIRCUIT

CLAMP RELEASE

PILOT

CIRCUIT #1 (UNCLAMP) FROM POWER & CONTROL MODULE

MODEL 4197-3 C PILOT OPERATED CHECK VALVE

PRESSURE SWITCH MAY BE WIRED NORMALLY OPEN OR NORMALLY CLOSED. IF A PLC IS USED PLC LOGIC MUST BE PROGRAMMED ACCORDINGLY. THE PRESSURE SWITCH MAY BE SET TO TRIP AT VARIOUS PRESSURES. RECOMMENDED RANGE IS 2500 PSI TO 3500 PSI WHEN SYSTEM IS OPERATED AT 5000 PSI. 12. A PRESSURE SWITCH MODULE IS USED WHEN A PRESSURE SENSOR IS INSTALLED ON EACH CIRCUIT, AS DESIRED. 11. THIS PAGE SHOWS A MODEL 4197-3 C CHECK VALVE INSTALLED WITH A MODEL-201 HYDRAULIC NUT AND OPTIONAL MODEL-382 PRESSURE SWITCH MODULE. TWO SEPARATE CLAMPING AND PILOT CIRCUITS ARE SHOWN (MORE CAN BE ADDED).

CIRCUIT #2

CIRCUIT #1

CONDUIT HERE

12 MODEL-382 PRESSURE SWITCH MODULE

SENSOR SWITCH (TWO) MODULES WITH THREE, FOUR OR GREATER NUMBER OF SENSORS ARE AVAILABLE.

CLAMPSAFE 3 HYDRO CIRCUIT W/ CHECK VALVES

PAGE 3 OF 3

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N118 W18251 Bunsen Drive Germantown,WI 53022 (262) 250-4410 • Fax (262) 250-4409

pfa-inc.com

PFA Model 128 & 128L Power Strap Rocker Clamp Quick Die Change User Guide  

User Guide for the 128/128L Rocker Clamp from PFA Inc., Germantown, WI

PFA Model 128 & 128L Power Strap Rocker Clamp Quick Die Change User Guide  

User Guide for the 128/128L Rocker Clamp from PFA Inc., Germantown, WI