Low-Maintenance Operation for Concrete Mixers




For more than 40 years now, ZF has been the market leader in mixer drives by providing the long-proven performance and reliability of its ZF ECOMIX for numerous concrete applications. Vehicle manufacturers from the U.S. to China put their trust in the high quality of ZF mixer transmissions. ZF fulfills this demand through continuous product innovation.

With the CML (Concrete Mixer Lowspeed) series, ZF presents the 2nd generation of the ECOMIX range for concrete mixers up to 16 m3 mixing capacity and an output torque of up to 90,000 Nm. ECOMIX II mixer transmissions are based on the achievements of the first ECOMIX generation, however, they are smaller, lighter, tougher, more flexible, quieter, easier to service and more efficient.

In comparison to previous models, the ECOMIX II transmission series CML are approximately 25% lighter and 40% shorter. However, their special design also offers further advantages. Thanks to a tough bearing concept it was possible to significantly increase the output bearing strength, which leads to less sensibility at off-road operation. The use of patented elastomer units allows 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 always possible. Acoustic and mechanic decoupling of drum and vehicle frame leads to considerable noise reduction during operation and improved driving comfort.

Serviceability has been improved thanks to an adapted, weight-optimized, low-speed-hydro motor and separate oil for transmissions and hydrostatic as well as an improved accessibility. The new concept offers also a higher efficiency which leads to fuel and cost savings for the operator. The compact and light design offers the vehicle manufacturer more freedom in design and facilitates the assembly.

Source: ZF Friedrichshafen AG

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