175-4591 datasheet(37/54 Pages) ETC2

37 / 54 page

Standard Design

Short Design

Mounting Style Descrip-

Part

Descrip-

Part

tion

No.

tion

No.

1-in. shank

4010

350-4010

4015

350-4015

1-1 /4-in. shank

4011

350-4011

4016

350-4016

1-1 /2-1n. shank

4012

350-4012

4017

350-4017

Platen

4013

350-4013

4018

350-4018

The Equa-Press Holder makes two identical welds at once.

When it contacts the workpiece, the forging pressure is

automatically equalized between the two electrodes,

regardless of variations in work thickness, or electrode

wear (up to 3/16”). The two tip-holding barrels are sliding

pistons, whose movements are controlled by a mechanical

equalizing slide in the housing (see cutaway drawings).

The spring’s only function is to return the barrels to a fully

extended position when there is no work contact. Maximum

conductivity is maintained through sturdy copperalloy

working parts. Spacing can vary up to 4 inches, using

TUFFALOY bent offset tips in Equa-Press holders having

the standard barrel spacing of two inches (shown).

Barrel spacing up to six inches is available as semi-

standard (see price list). These are drilled to order from

stock components. To order you must give the barrel

spacing desired, along with the Item number (from table).

Equa-Press Holders are made in two mounting styles:

platen models to mount directly to the platen on press-

type welding machines, and shank models for rocker

arm machines. All are available in two designs: the

standard and the short (close-coupled) type. The short

design is internally flood-cooled and takes up less

space in the welder.

Equa-Press holders can be used with forces up to 1500 lbs.

EQUA-PRESSTM

DUAL TIP

HOLDERS

U.S. Pat. No. 2,979,599

Canada Pat. 637470

Note: For best results, position the holder so that a line drawn through the

electrode centers is at, or nearly at, right angles to the direction of the

welder arms. Otherwise, the magnetic field between the arms can cause an

excess of current to flow through the inboard electrode.

TUFFALOY

multiple welding

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