Feeder Screw

To achieve an optimum result during the production of pellets it is necessary for the raw materials to be dosed adequately and evenly. For this reason, PTN has developed its own feed systems (feeder screw).

PTN developed two feeding systems that feed the raw materials (powders and granulates) with the right accuracy into the pellet production process.

For the correct feeding of product, a choice can be made between the standard dosing screw, with or without heating, or a TVA feeding device.

Details make the difference in this dosing screw made entirely of stainless steel. The geometry of the screw blades guarantees an uniform product flow. For use as dosing and conveyor screw for meal and granulates.


  • A guaranteed uniform product flow.
  • Robust construction of the housing.
  • Longer maintenance intervals.
  • Simple design

Features Feeder Screw

  • All the components that come into contact with the product are manufactured from stainless steel.
  • Solid screw shaft with flight with inclined pitch.
  • Closed shaft bearings outside the housing.
  • Gear motor with direct shaft coupling on the construction.
  • Suitable for frequency control. Frequency converter not included.
  • Product detector at outlet.
  • Overflow detector at outlet.

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Heated feeder screw

Additional technical specifications for the standard feeder screw:

  • Electrical heating system with adjustable thermostat 30°-110° C.
  • Insulated with rock wool (prevents condensation + cooling).
  • Finished with aluminum scaled sheet.
  • Compression packing on propeller shaft.
  • Propeller shaft bearings on spacers.


Range of Feeder screw

Typ Capacity (t/h) Motorpower (kW)
180 x 1000 Max. 8 1,5
250 x 1350 Max. 18 2,2
300 x 1500 Max. 30 3

Other dimensions available on request.