2,979,599 Canada pat. The Equa-Press Holder makes two identical welds at once. 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. These are drilled to order from stock comonents. The short design is internally flood-cooled and takes up less space in the welder. Otherwise, the magnetic field between the arms can cause an excess of current to flow through the inboard electrode. The standard transverse bar electrode shown is used when work geometry does not require tips on the side.