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ANDRITZ hammer mill type Optimill
ANDRITZ series 6 hammer millANDRITZ hammer mill

Hammer mills

ANDRITZ Feed & Biofuel technologies offers high-performance hammer mills for optimum size reduction of raw material. Decades of experience and highly qualified product specialists make us a strong partner in the supply of hammer mills for size reduction. The ANDRITZ range of hammer mills covers the need for extremely fine or coarse grinding at high capacity.

Optimill hammer mill series

The Optimill series consists of hammer mills that can be applied for grinding of raw materials for normal to coarse structured products.

Key features:

  • Coarse-grained particles – optimum particle size range
  • Patented closed rotor design – saving up to 20% in energy consumption
  • Large screen area
  • 1,500-1,800 rpm
  • Reduced noise level

Multimill hammer mill series

The Multimill series consists of fine-grinding hammer mills. The Multimill is designed with small hammer-to-screen clearance that secures minimum particle size.

Key features:

  • Optimum particle reduction
  • Small screen area
  • Low temperature operation for protection of nutritional value of feed ingredients
  • Energy-saving closed rotor design
  • 3,000-3,600 rpm

ANDRITZ hammer mill – series 6

The series 6 hammer mill is designed especially for today’s demanding application and safety guidelines. It is equipped with high-volume inlet for improved flow with light density materials.

Key features:

  • Externally reversible inlet baffle (with option to make automatic)
  • Slotted housing, permitting rotor removal with bearings
  • Large, sliding doors mounted on cam rollers, offering smooth operation
  • Inlet that accepts magnetic spout, a separator or rotary pocket feeder
  • Symmetrical (reversible), dynamically balanced rotor assembly
  • Four, quick-release, screen-cradle supports
  • Dual grinding chamber on 48" and 60" wide models
  • Heavy-duty motor base and motor supports
  • Replaceable wear plates
  • Door interlock switches ensuring closure until machine comes to complete stop
  • Optional vibration switch
  • Optional grinding chamber temperature sensor

Equipment for grinding units

The grinding process includes:

  • Feeder
  • Distributer screw
  • Separator
  • Collection bin
  • Air lock
  • Aspiration filter
  • Fan
  • Operating platform
  • Pre bin

The right combination of equipment will ensure the required grinding results and create optimum conditions for subsequent process, such as mixing, pelleting, and extrusion.



Phone: +45 (72) 160 300

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Related links

Ingredient cleaning and intake


Premix/micro and macro weighing




ECS (expansion control system)



Cooling and sifting

Air and dust filtration

Spare and wear parts


On-site service


Hammer mills

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