Air classifying of dry powders

Due to their particle size distribution, some processed products still do not meet application requirements. Fine fractions or oversized particles interfere with further processing or make the final product unsuitable for the targeted application. 

Such products require additional "optimisation" to meet the desired particle size distribution necessary to improve the product's characteristics. Customarily products with a particle size range of >100 µm can be classified without difficulty using a screening machine, however, air classifiers are essential for finer particle size distributions that require a more controlled separation.

Typical applications for our fine classifiers are the separation of undesired coarse grains and the distinct reduction of fines (de-dusting).

Different machine designs are available, depending on the desired cut points or application. Machine sizes are available for nearly all ranges of capacity. We carry out the project planning, production and commissioning of individual machines as well as complete classifying plants.

NETZSCH Standard Classifier

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  CFS 5 & CFS 8 Fine Classifier

  Efficient separation of grain sizes and effective results for both coarse material and fine material separation.

  For separation limits from 3.5 to 200 µm (d₉₇)

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  CFS Fine Classifier

  With our standard Fine Classifier CFS, fine powders can be cleanly classified. High performance classification and efficient results are valid for both coarse material and the separation of fines.

  Available for finenesses from 10 to 250 µm (d₉₇)

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  Bora - Air Turbo Classifier

  Bora Air Turbo Classifiers have been developed specifically for ultra-fine products with high added value.

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  Scirocco - Air Classifier

  Scirocco Air Classifiers have been developed for the production of fines from 6 -150 µm.

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  Monsoon - Classifier

  The Monsoon Classifier has been developed especially for the separation of fine products between 45-300 µm. High yields are achieved at very low specific energy consumption.

NETZSCH Laboratory Plants

NETZSCH laboratory plants are setting new benchmarks as regards operating convenience, compactness and flexibility. Depending on the application, these plants are rounded off with fluidized bed jet mills, high density bed jet mills, classifier mills and impact mills, as well as fine-classifiers and high-performance fine classifier.

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  NETZSCH LabCompactPlus

  The LabCompactPlus was especially designed for use in laboratories - machine (mills or classifiers) are taken up by a swivel arm on the machine base and can be exchanged very easily.

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  NETZSCH LabPilot

  The LabPilot is particularly suitable for flexible use in a laboratory and/or for producing small quantities of sample material. It is possible to install two different machine modules.