The SG series MIG semi-automatic gas shielded welding machines are suitable for all positions and for the highspeed welding of sheet metals and medium plates. These units are mainly used in the welding of ferrous metallic materials such as low carbon steel, low alloy steel, high strength low alloy steels, stainless steels, iron and nickel. With a one piece design, Pulse Width Modulation (PWM) electronic speed control provides an effective, smooth and steady wire feed during the welding process. Adjustable welding and interval times are specifically designed for easy and flexible spot welding of sheet metal. Extensively used in the welding and field operation of steel construction, oil pipelines, car production, shipyards and industrial installations. 1,With an advanced integrated circuit, functional modules and the new technology of high-performance switching for convenient adjustments, this unit is easy to learn how to use. 2,Independent development of mature technology, high reliability, easy operation and high efficiency. 3,The microprocessor control system optimizes the welding parameters. Using advanced digital control technology and humanized design, select the suitable welding current to achieve the best welding results. 4,Voltage auto detect function. 5,Equipped with feeder of frequency conversion and speed governing. 6,Practical, reliable and advanced technology.