InlineStar High-performance Fine Classifier

The true Inline Classifier

The combination of a fine grinding mill with a downstream air classifier is unavoidable for many product applications. The newly developed InlineStar however, can distinctly reduce the necessary expense! An InLine classifier combined with a fine grinding mill enables one to reduce the number plant components and energy! The intermediate separation of the product after the grinding stage is no longer required eliminating the need for cyclone, filter and exhaust blower.

The classification results are impressive. The sharpest separation, highest fineness and maximum possible yield is achieved!

The new InlineStar is available for testing in our laboratory in Hanau.



  • Finenesses up to d97 2.5 µm (based on limestone)
  • High performance classifier with horizontal shaft
  • Inline classifier for direct integration behind a fine grinding mill
  • Lower total air consumption
  • Welded classifier housing with hinged door for very good access for fast, easy cleaning and maintenance
  • Guide vane ring with adjustable vanes for efficient dispersion of the feed product prior to classification
  • Classifier wheel with exchangeable, simultaneously rotating immersion tube to achieve highest finenesses, unlimited adjustment
  • Gap between classifier wheel and fines outlet rinsed by gas for highest possible prevention of oversize particles in the fine fraction
  • Classifier shaft seal rinsed by compressed gas to protect the bearings
  • Bearing of the classifier shaft is permanently grease sealed or oil lubricated for hot gas applications
  • Extremely sharp separation and improved fines extraction
  • Highest finenesses and maximum throughput achievable with just one classifier wheel
  • Even load of the classifier wheel through the rotationally symetrical design of the machine
  • Reproducible results
  • Simpler system assembly with fewer plant components and reduced space requirement
  • Optional designs available: pressure shock resistant, gas tight, wear protected
High Performance Air Classifier for direct installation in a grinding plan


Ores / Minerals / Metals


Pigments / Dyes

Ceramics / Glass


Adhesives / Sealants


Cellulose / Pulp



fine grinding and fine classifying creates toner quality




The most difficult classifying jobs can be solved efficiently and economically with the NETZSCH InlineStar.


NETZSCH Trockenmahltechnik GmbH, one of the global leading companies in the area of dry product processing, is part of the Business Unit Grinding & Dispersing of the NETZSCH Group. Customers profit from our comprehensive experience potential and our diverse machine program, ranging from laboratory- and production machines to complete production lines. Fine impact mills, classifying- and jet mills as well as fine-cutting mills and high-efficiency fine classifiers made by NETZSCH are mainly used in the application areas chemistry, inorganic materials/minerals, ceramics and life science for pharma- and food applications.

CONDUX InlineStar High Performance Fine Classifier

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