NEA Cyclone Classifier CSF


The patented NEA cyclone classifier CSF enables extra precise separating cuts in the fineness range between 5 µm and 250 μm. The cyclone supplies narrow particle size distributions and separates fine fractions efficiently, e.g. for reducing the fine dust share for specific products.


Multifaceted and Efficient Classification


The cyclone classifier also provides the option of inline operation combined with different mill designs or in a separate classification system. It is also highly suitable for retrofitting existing systems. The areas of application for the cyclone classifier are varied, for example for dust removal, separation of impurities or to manufacture homogenous grain ranges.

Watch here the video

Cyclone classifier CSF - fast and reliable

The air flow which is loaded with grist enters the cyclone housing via an inlet spiral. The fine material follows air flow through the rotating classifier wheel. The coarse material drops down the housing walling. The separation limit for the classifier wheel regulates the separation limit between fine and coarse material is set simply, fast and reliably using the rotary frequency of the classifier wheel.

The CSF cyclone classifier is available as a pressure shock resistant PSR 11 version. The classifier is easy to retrofit to a cyclone separator. Its practical swiveling travel device enables fast product changes and easy cleaning.


  • Separation of fine parts via air classification and with adjustable efficiency.
  • Particle size topcut: 5 μm – 250 μm
  • Capacity: 10 kg/h – 35.000 kg/h
  • Classifier power: 1 kW – 160 kW
  • Air quantity: 100 m³/h – 60.000 m³/h
  • Diameter: up to 1.500 mm


  • Suitable for offline and inline combination with grinding systems
  • Upper grain fine material particle size restriction easy to set
  • Adjustable efficiency of fine grain separation
  • Optional: pressure shock resistant PSR 11 or ATEX design


  • Reduction of particulate matter, dry powder such as powder coatings, bauxite and gypsum, limestone as well as hydrated lime and several more.

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