Atlas TC220 Swing Arm Tyre Changer. 4 powerful pneumatic clamping jaws. 13-amp power supply and 8-10 Bar compressed air supply is needed to get this machine up & running. Rim clamping range external: 10″ – 22″ Rim clamping range from internal: 12″ – 24″ .Max. tyre diameter: 1000 mm (39”). Max. tyre width: (355mm) (13“)