Working principle: According to the principle of plasma high-frequency discharge, metal welds are formed instantly in the molten pool; the solder joints are silky smooth and uniform in texture. Precise Spot Weld: According to the size of the workpiece, the size of the weld joint and the process requirements, the output pulse current can be changed to achieve the desired effect (this machine can weld 0.5-1.5MM). Portable Design: Mini size with easy-to-carry handle, light weight, compact design, easy to carry and store. Wide Application: Spot welding machine can be used for rapid welding of platinum,gold,K gold,silver,copper and iron,precision welding of ring mouth,melon buckle,thin wire,direct welding without solder powder. After-sales Service: We provide satisfactory after-sales service, if you have any questions, please contact us, we will reply you within 24 hours, thank you!, Weight: 12.12542441 Pounds, Manufacturer: YILIKISS