NETZSCH Trockenmahltechnik, Hanau, Germany, has gained patented protection for the recently launched SECOMY® S Version of its range of SECOMY cutting mills which are designed to ensure a high rate of cuts for ultrafine grinding of cuttable materials. Application areas for this type of machine are materials which must be finely ground by cutting, i.e. temperature-sensitive materials, fibrous products, as well as materials for which good free-flowing properties, high bulk densities and a gentle grinding are required.

 

NETZSCH points out that problems which arose in the past when standard fine-grinding mills were used for the classifying of products to below 150µm, have been solved with the new S Version. Standard fine-grinding mills are usually operated with fine screen meshes. Previously, this has led to problems with excessive temperature and durability during operation. The screen insert has now been completely replaced by the installation of a rotating classifier wheel. After cutting, the ground product is transported to the classifier wheel by air currents and then classified in this area. Coarse product falls back into the grinding chamber. The fine product leaves the machine via the pipe outlet. The classifier wheel geometry, which has already been tried and tested in other NETZSCH machines, was further optimised for the applications involving separation of fibrous products. www.netzsch.com/gd

 

 

SECOMY S Version cutting mill from NETZSCH Trockenmahltechnik