Professional customized non-standard automated welding machines, welcome to inquire accordingly. Heat exchanger welding machine DC-200KVA it is automatic rotation for parts with upper cylinder rotation welding ,it able welding to seam round sheet with linear seam weld common once machine ,will big to save the investment cost. Used Siemens Servo motor ,PLC ,HIM for system to be control while operation ,the good accessores can be weld got good processing . DC type is the good balance for power voltage .and ensure nice welding effects.