Product Description:   Spot welding machine can be used for platinum. Gold. K gold. Silver. Steel rapid welding, the ring mouth, melon seeds buckle. Fine wire precision welding, direct welding without welding powder.   The use of plasma high-frequency discharge principle, in the metal welding port instantly forming molten pool Adjust the output power according to the wire size The welding of the workpiece smooth, solid, fast, high efficiency Technical Parameters:   Power: 220V 50 / 60HZ   Maximum current up to: 80A   Dimensions: 310 * 165 * 140MM   Installation and commissioning:   1. Electrode clamping output negative electrode, the electrode seat output positive pole.   2. Tungsten needle can be sharpened in the grinding machine, the use of cutting-edge discharge principle.   3 tungsten needle diameter 1.5mm   Steps:   1. Turn on the power and turn on the power switch.   2. Adjust the power knob, divided into coarse and fine. According to the work requirements can be adjusted scale value   3. The workpiece is aligned with the tweezers. The workpiece interface is aligned with the tungsten needle (the optimum distance is 5mm).   4. With the foot pedal switch (remove the foot). Spot welding is completed.   Precautions:   1. feet can not be a long time stepping on the foot switch, step on immediately remove, such as a long time stepping on the switch, the machine is in a short circuit state, will burn the internal circuit   2. Please use this machine for precision.   3. Flash on the eyes of injury, please use the protective measures.   4 When you press the foot switch, do not touch the metal parts of the tungsten needle and tweezers at the same time, otherwise there will be a sense of acupuncture.   5 non-professionals please do not repair, there are high pressure.