... IGBT welding machine1.IGBT inverter tech,current-mode control,reliable quality,stable performance2.Closed loop feedback control,constant voltage output,workable ... ±15%3.Stable welding arc, little spatter,deep penetration,beautiful shaping,high welding efficiency4.Slow wire feeding during arc starting,remove the ... Dimensions(L*W*H)600*300*540600*350*580 Good quality IGBT welding machine(CCC&CE)