... output current(A)630Cueeent range(A)120-630Insulation classFApplied welding rod(mm)3.2-8.0Duty cycle(%)35Dimension(mm ... current adjustment, wide range of adjustment;Use general electrode, welding ferrous metal work pieces;Stable arc, little spatter, deep ... penetration, ensure good welding quality;High efficiency, simple structure, easy to operate and maintain. BX1 630 AC Arc Welding Machine