175-4591 datasheet(39/54 Pages) ETC2

39 / 54 page

Mounting Style

Descrip-

Part

tion

No.

1-in. shank

4040

350-4040

1-1/4-in. shank

4041

350-4041

1-1/2-in. shank

4042

350-4042

Platen

4043

350-4043

Shank

Descrip-

Part

Dia.

tion

No.

4025

350-4025

1-1/4

4026

350-4026

1-1/2

4027

350-4027

TRISPACER HOLDER

LOWER ELECTRODE

SYMBOLS

TRISPACERTM TRIPLE TIP HOLDER

U.S. Pat. No. 3,558,848

The Trispacer tip holder will make three spot welds at

one time, automatically splitting the current and the

pressure equally between the three tips. In doing so,

it compensates for variations in work thicknesses and

electrode wear-up to 3/16-in.

The three tip-holder barrels (#5 RW) are equidistant

from one another, all falling on a 1-5/8-in. diameter

circle (in the standard model shown). Using straight

tips the weld pattern would form an equilateral triangle.

However, the weld pattern can be widely varied by using

standard or special bent tips. In fact, the three welds

can be made in a straight line.

The Trispacer Holder works in the same simple,

mechanical way as the Equa-Press Holder: The tip-

holding barrels have a limited up-and-down movement,

to accommodate work conditions, and are adjusted to

deliver equal pressure by the cone-shaped equalizing

device in the housing. AlI current-carrying parts are

made of RWMA copper alloys. It is made in two styles:

to mount directly to the platen of press-type welders,

and with shanks to fit in welder arms.

LOWER ELECTRODE

A simple, water-cooled lower electrode is made for

use with the Trispacer holder. Its three-inch-diameter

face makes it usable with any weld pattern that may

be developed for the Trispacer. It comes in three shank

diameter models.

Diagram indicates the wide range of

weld patterns which can be made with

the Trispacer by using straight, standard

bent or special bent tips.

Maximum Triangle Size

Straight-Tip Triangle Size

Minimum Triangle Size

Maximum Straight-Line Spacing

1-7/8

1/2

5 RW TAPER

PLATEN

DIMENSIONS

1/2 x 3-1/2 x 7

3 DIA.

TUFFALOY

multiple welding

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