EXTRAPLUS silo extractor


  • Rotating turret mounted in the middle of the silo bottom and connected to a fixed structure through a slewing bearings
  • Turret rotations by means of two hydraulic motors
  • Extraction screw embossed and connected to the turret structure by means of a slewing bearings
  • Extraction screw based on progressive pitch and fitted with peripheral milling-teeth
  • Extraction screw rotations by means of hydraulic motor
  • Hydraulic power unit located close to of the extractor screw
  • Cooling circuit of the extraction screw hydraulic motor lubrication
  • Automatic grease lubrication circuit of slewing bearings.


  • Suitable for:
    - large silos, up to 25 m diameter
    - materials difficult to extract, e.g. wet-fibrous-compact
  • Easy inspection and maintenance
  • Excellent mixing of the extracted material
  • High efficiency and reliability
  • Low maintenance.
Tel +39 0422 852300
Email info@pal.it
Download the data sheet for details on the technical features, advantages and scope.