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Central process component

Mixing is one of the central process steps during the production of concrete and asphalt. Various materials with very different physical properties and aggregate conditions need to be transformed into a finely metered, homogeneous and reproducible mixture within a very short time.






An ideal mixer transfers as much relative movement as possible to the mixture. Mixing paddles accelerate the particles in the mixture to systematically change the intensity and direction of the applied force. A twin-shaft compulsory mixer meets these requirements in full and has proved itself to be the best mixing machine for building materials. Its intertwining mixing levels combine material transport with mixing and shearing movements to guarantee a high degree of homogeneity with the shortest time. The costs of wear and tear are significantly lower in comparison to other techniques.

One-arm mixing pattern

A one-arm mixing pattern is used for many mixing tasks. The position of mixing arms on the shaft and the sequence of mixing paddles in the turbulent mixing zone result on the one hand in an even distribution of force into the mixture and, on the other hand, to a homogeneous mixing behaviour across the entire length of the mixer. This mixing arm pattern is adequate for most mixing tasks and is a good compromise between mixer performance, energy consumption and operational costs.


The double arm pattern is recommendable for mixing tasks where very short mixing times are required in addition to homogeneity. Its powerful and intensive mixing behaviour makes the mixing process nearly twice as fast.


The mixing arm patterns for continuous mixers and hybrid mixers in particular are optimised for each specific application. Mixers can provide any desired quality property by changing the weighting of conveyance, shear action and displacement. They are thus adjustable to cater for every possible mixing task.