Description: 1.M-series DC arc welder adopts silicon retifying circuit. 2.It has the advantage of light weight, no noisy, high efficiency, energy conservation, reliable function,long lifetime and easy maintain. It is cooled by fan.It has wheels and easy to move. 3.The welder of this series has good structure, wide current adjusted range, stable electric arc,quite weld pool and lttler splash. Welding line shaped is good and it is good and it is good for alround welding. 4.It is widely used in machine making industry, boat making industry, chemical industry, bridge building industry, mining machinery, pressure vessel and other industries.