Portable welding carriage designed to weld both sides of stiffener ribs or I-beams

Koike Aronson's Wel-Twin is a heavy-duty, portable welding carriage designed to weld on both sides of a stiffener rib or I-beam up to 24 in. tall. Common uses are for shipbuilding, trailer building, and custom I-beam construction.

The unit is attached magnetically from both sides of the plate by a main carriage and subcarriage. The interface signals both wire feeders when the welding is to begin. The semiautomatic machine is driven and held on a vertical plate that is gripped by the main carriage and subcarriage to maintain consistent welds.