Semi-Automatic Metal Inert Gas Welder is configured with current, voltage and speed unified adjusting as well as separated adjusting facility. The Metal Inert Gas Welder is suitable for solid core and flux - cored welding wires, suitable for welding mild steel, low alloy steel, high strength steel, stainless steel etc. The Metal Inert Gas Welder works on semi-automatic mode of operation and ensures optimum performance for longer period of time. Semi-Automatic Metal Inert Gas Welder is provided with over load production avoids machine damaged by accidents.