ZF upgrades mixer transmission

  • 19-Jun-2008 08:00 EDT
Figure 4 - ZF Ecomix II .jpg
ZF says the compact, light design of its new Ecomix II mixer transmission offers OEMs more freedom in equipment design and facilitates quicker assembly.

Last year ZF debuted the Ecomix II transmission for concrete mixer trucks with up to a 10-m³ (13-yd³) drum capacity and an output torque of approximately 62,000 N•m (45,700 lb•ft). The Ecomix II is based on the first-generation Ecomix; however, it is smaller, lighter, quieter, more rigid, more flexible, and has improved serviceability, according to the company.

When compared to the previous-model mixer transmission, the PLM 9, the Ecomix II – CML 10 (concrete mixer low-speed) is about 20% lighter and 50% smaller. ZF says a new bearing design in the Ecomix II made it possible to significantly increase the output bearing strength, leading to enhanced rigidity during off-highway operation.

Patented elastomer components from ZF Boge Elastmetall contribute to an increase of the axial run-out at drum bottom and an increase of misalignment of the drum. With the new bearing concept, the installation angle is no longer dependent on drum size and drum filling. An installation angle up to 20° is also possible. Acoustically and mechanically decoupling the drum and vehicle frame leads to considerable noise reduction during operation and improved driving comfort, says ZF.

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