Difficult classifying application problems can be solved efficiently and economically with the NETZSCH High-Performance-Fine Classifier CFS/HD-S. This machine is the ideal problem-solver, in particular for large product throughput capacities. This high-performance fine-classifier, which is often used as part of a complete grinding plant, was developed to obtain ultra-fine cuts in a range of up to a d97 of 2.6 µm.
The most important features of these air separators are their excellent exactness of cut and very direct product flow. With their possible separation results, these machines have proved to be highly efficient. This is achieved particularly by a very high dispersing effect (HD = High Dispersion) before the product is separated via a classifier wheel. Around the classifier wheel, guide vanes are installed, which disperse the feed product with clean gas and then guide it directly to the classifier wheel. Thanks to the high number of dispersing points and the short distance to the classifier wheel the product does not agglomerate again.
A further reason for the excellent separation results is the geometry of the classifier wheel itself. With the introduction of the classifier wheel “ConVor”, an execution, which has constant radial speeds in the inner part of the wheel, it was possible to reach a further range of finenesses, which had previously been unobtainable with the vane wheel air classifiers already existing on the market. And this on a production scale! This optimised classifier wheel design guarantees that very high finenesses can be obtained at high throughput capacities with only one classifier wheel. Complicated constructions with several classifier wheels in one machine unit are a thing of the past!
The screw-shaped design of the housing optimises the product flow within the unit. This allows large amounts of coarse product to be discharged unhindered! Accessibility and easy cleaning of the machine are guaranteed by the housing door, which can be opened on hinges and the removable guide vane basket.