The DURUMAX® TPM 3 DOS-V extruder gearbox of Henschel Antriebstechnik offers the extrusion manufacturer high technology on the newest state of the art technology. In the global market the TPM 3 DOS-V has asserted itself against the hardest competition and is meanwhile the most widely used counter-rotating extruder gearbox.

Outstanding Characteristics: 

• High "power density" with all used center distances
• Modular and suitable design 
• High efficiency by reduction of the rotary parts
• Exceptionally high operational safety
• Torque ratings determined by the customers and market requirements
• Excellent price-performance ratio

The technical concept of the TPM 3 DOS-V series consists of a reduction gearbox and a distribution gearbox. Both gearbox modules are connected by the thrust bearing housing.

In contrast to the TPM 3 series the distribution of the torque occurs with the DOS gears in the distribution step with two pairs of gears like a double helical gear.

The gearbox can be driven directly by a motor or with a belt at the Input shaft. In the multi-stage helical gearbox, the speed is reduced and the required torque is created. This torque is transmitted in the distribution gearbox to the two counter-rotating output shafts.

The axial forces resulting from the extrusion process are absorbed by thrust bearings inside the thrust  bearing housing.