Single phase AC 220V Vertical Pneumatic Spot Projection Welding Machine DESCRIPTION Pneumatic AC pulse spot welder can be designed from 3KVA to 600KVA. The 75kva ,100 kva and 150 kva adopts the same body as the picture. 75 KVA machine is suitable for welding thickness of 2.5+2.5mm 100 kva machine is for 3+3 mm and 150 kva machine is for 3.5+3.5mm FEATURE We use the intelligent microcomputer type controller. It is designed by ourselves. Constant Current Control, Constant