Standard design

  • Rotating drum
  • Direct cooling with fresh cooled air
  • Feed and discharge screw conveyors
  • Inclined installation
  • Closed system prevents AC losses
  • Chain drive


  • Even depolymerisation to the required DP
  • Effective cooling by direct contact
  • AC can be stored in the ageing drum during short plant stop (buffer)
  • No AC cooler required (done during pneumatic AC transport)
  • Easy cleaning of the equipment when necessary