Performance features and purposes: With strong function and multi-purpose. It could be applied to both AC and DC welding, even being paralle connected to become a high capacity welding machine. With wide range of current adjustment, it is able to meet the demand of thickness change of workpiece for welding: Being equipped with tool box, it is suitable for operating on external field; using three or six independent cores, it will not happen the unbalance of power distribution. Working ConditionNo-load VoltageRegulating Range of CurrentRated Duty CycleAC78V80-550A60%DC70V70-400A60%