BHS-Sonthofen – based in the German town of Sonthofen – has supplied a Type DKX twin-shaft batch mixer to Unibéton, a French subsidiary of the HeidelbergCement Group, which is producing specific ready-mix concrete for the Grand Paris Express project. For the first time in France, the mixer has been installed with frequency converters to enhance its performance.

Grand Paris Express is currently believed to be Europe’s largest public transport and infrastructure project, comprising four new transit lines and the extension of three further existing lines. At Issy-les-Moulineaux, a suburb of Paris, Unibéton is using new concrete recipes which require longer mixing times. In order to ensure reliable and homogeneous mixtures for each batch, the Unibéton management team decided to replace one planetary mixer with the more powerful DKXS 4.50 twin-shaft batch mixer from BHS-Sonthofen. The German company invented the twin-shaft mixer over 130 years ago and has continuously developed the technology. Unlike other mixing systems with circular motion, the twin-shaft batch mixer offers a three-dimensional mixing concept that results in an intensive interchange of materials. This happens in the turbulent overlap area of the two mixing circles. www.bhs-sonthofen.de

 

The DKX’s three-dimensional mixing concept results in an intensive interchange of materials, shorter mixing cycles and reduced energy consumption

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