Batch mill Type PRK

Reach Highest Product Qualities: Batch Mills for continuous Circulation Grinding of Hard Products


The new generation of PRK Agitator Mills is a further development of the proven NETZSCH Attritor machine.

For the first time these batch mills allow you continuous circulation grinding of hard and abrasive products. A compressed air diaphragm pump discharges the product and is used for circulation during operation.

You achieve highest product qualities with exact reproducibility.


  • Special agitator, vertically arranged, with tungsten carbide sleeves as wear-protection for the agitator pegs, activates the grinding media
  • High shear and bouncing forces are obtained by optimising the agitator shaft design according to the grinding media size used
  • Ideal flow conditions inside the grinding tank by adapted agitator peg arrangement in combination with a semi-spherical tank floor
  • Hard metal sieve plate for product grinding separation in the tank floor
  • Discharge valve with filter
  • Intensive cooling by double-wall grinding tank and coolable circulation pipeline
  • Condensation cleaning on the coolable tank lid
  • Circulation grinding guarantees exact reproducibility and high product homogeneity
  • Residue-free discharge and easy cleaning due to dish bottom chamber
  • Enclosed machine design to prevent emissions
  • Better servicing, due to integrated swivel-type grinding chamber mobile on rails and pneumatic lifting device for tank cover
  • Symmetrically arranged pegs allows reverse rotation to increase the machine’s lifetime
  • Coolable grinding chamber
  • Options
  • Adjustable agitator shaft speed
  • Automation of production and cleaning process by PLC control

For more information please contact us

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