Full unit CETL certified machine, semi-automatic lateral swing arm design, clamping system with stepping function, poly-covered rim protection head, plastic protective cover on jaws, air regulator and lubricator, motor: 2HP, 12.5AMP, 120V/60Hz, maximum tire diameter 41in, wheel width 3in-15in, operating pressure 115-145 PSI, Internal rim clamping capacity 12in-24in, external rim clamping capacity 10in-22in