spot welding machine/air-powered spot welding machine/ welding machine. Novel structure, special design, good rigidity. Adopt the high definition guidance institution, high staying quality, piston straight pole pressurizing, high speed welding, pressure steady. Microcomputer control system, twice section discharge, precise control of the welding time and welding current, easy to adjust. High conduction magnetism silicon , secondary whole structure, output current is high, energy-saving and protect environmental . Water-transformer, water-, and water-electrode what can improve the use life of equipment. It is used to high quality welding wide range of wire type, plate type, heteromorphosis type copperaluminumironstainless steel metal etc. Main technology parameter Model No.DN-16DN-25Power16KVA25KVAMains voltage380V380VDuty cycle20%20%Welding thickness1.5+1.5mm2.0+2.0mmArm body size350mm350mmCylinder diameterΦ80mmΦ80mmStroke of cylinder60mm60mmElectrode headΦ13mmΦ13mmElectrode holding poleΦ20mmΦ20mmCooling discharge of stream≥2.5L/min≥2.5L/minWeight165kg165kg