FEX Extruder Gearboxes – Single-screw Extruders

Custom-made Extruder Gearboxes

The flat extruder gearbox of the FEX Series has been specially developed for the extrusion process in the plastics industry and for recycling plants with a view to the axial loads that occur. The gearbox – available in Z or U shape – is characterized by its high power density and compact design.

The sizes range from a centre distance of 125 to 630 mm and have been dimensioned based on the respective screw diameters. The torques of these models lie in a range of up to 200,000 Nm with freely selectable gear ratios.

A Variety of Options for Every Application

A wide variety of options is available for the FEX extruder gearboxes. Whether motor flange, coupling, or oil/water cooler – the gearboxes are ideally adapted to your application. They come complete with a thrust bearing (self-aligning roller thrust bearing) specially designed for the purpose. Screw pull-out to the front or to the rear is also individually implementable.

Additional Options:

  • Reinforced thrust bearings
  • Lubricant and temperature monitoring
  • Drive motors
  • Shaft end: smooth, profile DIN 5480, keyway, complete with connecting flange

The right size for you

Precise, modular housings available in eleven sizes cover a complete range of models:

  • Centre distances from 125 to 630 mm
  • Models with up to 3 speeds
  • Ratios from 5:1 to 100:1
  • Maximum output torques up to 200,000 Nm
  • Z or U form
  • Eleven standard sizes, special sizes on request
  • Cooling, lubrication and lubricant monitoring according to the customer's wishes
  • Input and output to the customer's specifications
Power P kW 8 to 510
Ratio i   5 to 100 (1 to 3-speed models)
Speed n1 max rpm Up to 3,000
Torque T2 max Nm Up to 200,000
Centre distance   mm 125 to 630
Form     Z or U
Housing Cast iron
Lubrication Oil splash lubrication, oil circulation lubrication with pump or separate oil supply unit.
Cooling Oil/water cooler, internal and external, oil/air cooler

The inputs and outputs are implemented in accordance with the customer's specifications.