Atlas TC220 Plus swing arm with bead press assist arm. 4 powerful pneumatic clamping jaws . 13-amp power supply and 8-10 Bar compressed air supply is all that 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“).