This machine is manual operation for drill pipe excircle friction welding surface grinding. The high speed revolution of aluminum wheel and rubber wheel are driven by Siemens main motor

It consists of support body, support column,  Siemens main motor,  aluminum whee,  rubber wheel, abrasive belt pneumatic pre-tightening device, abrasive belt cover, pneumatic element. It has the advantage of simple structure, high efficiency, good surfacing etc.