The device either built inside the welder or set beside the welder that feeds wire to the welding gun.

A wire feeder usually installs in or out a welding machine, helps the machine to do an automatic welding job, automatic feeding the welding wires. To make the welding, especially the arc welding more easily and efficiently, you need a Wire Feeder in your welding machine.

Different diameter of the wires needs different spec of Wire Feeder. Typically, there is 0.8/1.0, 1.0/1.2 for option. This is the regular specs, any special specs, all available in Huiyun S&T Co.