175-4261 datasheet(40/54 Pages) ETC2

40 / 54 page

Spring

1/8-in.

1/4-in.

3/8-in.

1/2-in.

Type

Compression Compression Compression Compression

M (300 lbs. max.)

140

200

250

300

MH (680 lbs. max.)

310

440

560

680

H (1300 lbs. max.)

600

840

1070

1300

300 LBS MAX.

680 LBS. MAX.

1300 LBS. MAX.

(M SPRING)

(MH SPRING)

(H SPRING)

Descrip-

Part

Descrip-

Part

Descrip-

Part

tion

No.

tion

No.

tion

No.

1” Shank

4620

350-4620

4621

350-4621

4622

350-4622

1-1/4” Shank

4623

350-4623

4624

350-4624

4625

350-4625

1-1/2” Shank

4626

350-4626

4627

350-4627

4628

350-4628

Platen-Mtd.

4629

350-4629

4630

350-4630

4631

350-4631

FAST-FOLLOW-UP FORCE CHART (LBS.)

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 platen-

mounted-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.

Current flow follows dashed arrow

through the outer body, two split

contact rings, tapered tip socket,

and to the electrode.

For every one-eighth of an inch that a fast-follow-up is compressed when

setting up, a known amount of force is provided, to quickly follow up any

reduction in work thickness. Example: at position B, a type MH spring would

delivery 310 lb, at C, 440 lb, etc.

Mounting

Style

No external

Compression

1 mark

Compression

2 marks

Compression

3 marks

TUFFALOY

fast-follow-up holders

175-4261 Datasheet(PDF) 40 Page - List of Unclassifed Manufacturers

175-4261 Datasheet(HTML) 40 Page - List of Unclassifed Manufacturers

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