Overview Structural steel work is unforgiving. Beams arrive with mill scale, tac welds and fit-up gaps that shift along the length of the joint; the arc throws spatter into every exposed cable; and heat pulls the section as the pass count climbs. A welding robot only adds value if it can hold the torch steady at the end of a long, awkward reach while that happens. This arm was built for that geometry: a long working envelope lets it follow seams deep into a frame or across a