Double-head spot welder (50-100-150) This equipment is double-head spot welding in orbit type pneumatic control and mainly used for spot welding of body and end covers of stainless steel water tower. It adopts advanced technology to keep uniform stress and firm welding. The power is 50-150KW, welding thickness of 0.2-1.2mm. The effective length is 1.5M and the dimension of machine is 2x1.1x1.7M.