PW manual IT welding gun includes two series: light type and heavy type. Light electrode holder uses aluminum bracket structure, the depth of the throat is below 500mm, welding pressure is about 4KN, in light weight. The structure is compact, and it is more closely related to ergonomics. It is smaller, lighter and has a better balance. The welding gun conforms to the standardization and modularization design, the PW series transformer in interchangeable, the disassembly and maintenance is simple and convenient. The compatibility is stronger, and can be compatible with various well-known brand welding controllers, which can be used to meet the requirements of different working conditions.