... used to weld the ring seam between the power capacitor and the case cover. Using DC TIG, the welding seam is formed automa ... capacitors between casing and a box of welding seams, the dc tungsten an arc of argon soldering itself from molten form ... , high precision, adopt pneumatic clamping workpiece, compaction force is adjustable.power demand: 380V,13KWWeight:350KG Casing welder