ProductsMillsPerforated disc mill

FrymaKoruma ML

FrymaKoruma ML

Perforated disc mill
  Throughput (kg/h) Power (kW)
ML 150 200-2500 5,5
ML 180 1000-12000 15,0
ML 250 4000-20000 30,0
ML 330 8000-40000 60,0

FrymaKoruma Perforated Disc Mill, type ML

The ideal solution for macerating products containing bulky particulates with a high moisture content.

Key Advantages

  • High throughput, small footprint
  • Different perforated discs available for a variety of applications
  • Axially adjustable knife supports
  • Optimally adaptable to each particular product
  • Excellent reproducibility and scale-up guaranteed
  • Easy monitoring for safe operation
  • Vertical and horizontal version available
  • Safety elements prevent handling errors
  • Also available as an inline mill for system pressures of up to 6 bar, versions for higher pressures upon request
  • Prepared for CIP and sterile operation
  • Also available with accessories to replace the processing tools


  • Vertical mills with feed hopper
  • Vertical mills with hopper and feed screw
  • Horizontal mills with hopper and feed screw
  • Horizontal inline mills for integration into pipeline systems

Technical Data

  • Power supply standard 400 V / 3 phases, 50 Hz
  • All other voltages and frequencies available upon request

Material Specifications

  • Parts in contact with the product made of stainless chrome-nickel steel AISI 316L (1.4404, 1.4435)
  • Elastomers in EPDM as standard (optionally: FPM, MVQ, NBR etc.)
  • Perforated discs made of 1.4112 / AISI 440B, knife supports of 1.4034 / AISI 420

Operating Conditions

  • Temperature : from 0° – 80°C
  • Air humidity : from 0 – 80%
  • Ambient air : as dust-free as possible

Functional Description

The product to be processed is fed through a hopper. A four-bladed knife support rotates at high speed directly above a perforated disc. The combination of forces created by the cutting blades and the ejector device mounted below the disc propels the product through the disc, at which point size reduction is achieved. The product is then discharged through the outlet.

Specification of Standard Components


  • Single-acting mechanical seal (Cartridge), elastomers EPDM
  • Others upon request

Electrical & Electronic

  • Mill motor IP 55
  • Other protection types upon request


  • Conversion to a corundum stone mill (MK) or a toothed colloid mill (MZ) possible (combined mill)
  • Machine housing for tempering
  • Worm feed screw with controlling mechanism
  • Pre-cutter
  • Additional perforated discs
  • Solvent-resistant version
  • Different materials of construction
  • Frequency converter
  • EEx protection
  • Double-acting mechanical seal
  • Discharge and/or supply pump
  • Sealing liquid station