Spot Welding Supplies - Electrodes, Holders, and Accessories - Tuffaloy Products
EQUA-PRESS* Dual Tip Holders
U. S. Pat. No. 2,979,599 Canada pat. 637470
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 inch). 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 copper-alloy working parts. Absolute fidelity of weld spacing is maintained. 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)(EXAMPLE)
Barrel spacing up to six inches is available as semi-standard (see price list). These are drilled to order from stock comonents. To order you must give the barrel spacing desired, along with the Item number (from the table). Example: 350-4012-3.25 ".
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.
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.
Lower holders and electrodes for use with Equa-Press Holder