Weld Systems Integrators (WSI) released new rocker arm spot welders. The rocker arm welder shown is a 75-kVA unit built for steel door welding applications. It features a solid steel frame, Entron EN6001 weld control, 48-in. throat depth and solid copper arms. In addition, the Unitrol Soft Touch safety system is included, along with an adjustable/retractable air cylinder. WSI rocker welders may include many upgrades, including: kVA of 30, 50, 75, 100 and 150; voltage of 208, 230, 460 and 550; throat depths of 12 in., 18 in., 24 in., 30 in., 36 in., 42 in. or 48 in.; single-phase AC/60 Hz (optional MFDC); choice of welding controls; and water chillers and re-circulators.