Double column elevating welding positioner is mainly used for solving problems of high position,also can weld seam provide low installation position.make the workpiece clamp and fix more easily . The revolving device may be one motor or double motors.

      The synchronous elevating type mainly use chain with 2 motors. The revolving device oftern use 1 motor drive . But if the workpiece eccentric , we usually use 2 motors drive the workpiece revolving.