Extrusion Gears


"Henschel stands for high operational reliability, because we are autonomous and produce what is crucial for the realization of this ambition."
Stefan Knieling
Head of Extrusion Gears

Parallel Twin-Screw Co-rotation

Co-rotating power divider with two gear pairs (comparable with double helical gears) reaches a torque factor of up to 24 Nm/cm³ 

Based on the approved TPM 3-DOS-V series of counter rotating twin shaft extruder gearboxes Henschel developed the DURUMAX® TGE 3-DOS series for co-rotating extrusion in 1997. The range has been continuously extended. 


Outstanding Features:

  • High "power density" at all center distances

  • Modular and practical design

  • High efficiency due to a minimum of rotating parts

  • Exceptionally high operational safety

  • Torque ratings determined by the customers and markets requirments

  • Excellent price-performance ratio


The technical concept of the TGE series consists of a reduction gearbox and a distribution gearbox. Both gearbox modules are connected by the the thrust bearing housing.


Similar to the TPM 3 DOS-V series the distribution of the torque is done by two pairs of gears (like a double helical gears) with optimized design.


The gearbox is driven by a motor directly at the input shaft. In the one-stage helical gearbox the speed is going to be reduced while the required torque is created. This torque is transmitted in the distribution gearbox to the two co-rotating output shafts. The axial forces coming from the extrusion process will be absorbed by thrust bearings inside the thrust bearing housing.