Main Features • Adopting single chip(MCU) control, step motor drive, torch swing angle is accurate • With four roller drive motor to get stable wire feed • Welding current, welding voltage and welding speed is easy to adjust • Swing speed, swing angle, stop time, crater time parameter separate adjust • Digital display • Parameter storage and selection function Work with the MIG welding power source for mid and thick plate and corner welding. Large used on steel structure, ship building, pressure vessel, pipe industries.