... 5No-load voltage(V)72Rated output current(A)315Cueeent range(A)60-315Insulation classFApplied welding rod(mm)2.5-5.0Duty ... 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 315-2 AC Arc Welding Machine