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Fast-Follow-Up Holders

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U. S. Pat. No. 3,632,958   Canada Pat. No. 902,189

TUFFALOY fast-follow-up (low inertia) holders solve the problem of maintaining adequate weld pressure on rapidly collapsing projection welds-with fewer set-up problems and reduced maintenance.

These holders can be set to deliver fast-follow-up forces of from 140 to 1300 pounds, a range covering 90% of all projection welding operations. They are compact, water cooled, and easy to maintain.

Plus features of the TUFFALOY fast-follow-up holder include: (1) wider range of pressures than any competitive make (2) no flexible shunt-a common cause of holder failure (3) use of standard, unmodified die springs, so if you need a spring of different strength, it’s easily available (4) spring forces available are clearly indicated, so it’s easy to set up for a specific force (5) three shank sizes, or it can be platenmounted- the only fast-follow-up holder that can (6) extremely low height permits use where larger units can’t be used.

TUFFALOY fast-follow-up holders can be used to limit the weld pressure of any spot welding machine regardless of cylinder size or air pressure. This is better than reducing air pressure, which slows the return stroke and retards production. 

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300 LBS MAX. (M SPRING)
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300 LBS MAX. (M SPRING)
Mounting StyleDescriptionPart No.
1" Shank 4620 350-4620
1-1/4" Shank 4623 350-4623
1-1/2" Shank 4626 350-4626
Platen-Mtd. 4629 350-4629
680 LBS. MAX. (MH SPRING)
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680 LBS. MAX. (MH SPRING)
Mounting StyleDescriptionPart No.
1" Shank 4621 350-4621
1-1/4" Shank 4624 350-4624
1-1/2" Shank 4627 350-4627
Platen-Mtd. 4630 350-4630
1300 LBS. MAX. (H SPRING)
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1300 LBS. MAX. (H SPRING)
Mounting StyleDescriptionPart No.
1" Shank 4622 350-4622
1-1/4" Shank 4625 350-4625
1-1/2" Shank 4628 350-4628
Platen-Mtd. 4631 350-4631

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