Knife Mill GRINDOMIX GM 300



The new knife mill GRINDOMIX GM 300 is the ideal instrument for the grinding and homogenization of foodstuffs. It allows to process sample volumes up to 4.5 liters quickly and reproducibly.

With four sharp, robust blades and a powerful motor which can reach temporary peaks of 3 kW, it is ideal for homogenizing substances with a high water, oil or fat content as well as for grinding dry, soft and medium-hard products. The GRINDOMIX GM 300 meets and exceeds all special laboratory and analytical requirements and is a professional device superior to any commercial household mixer.

Application Examples

candy, cereal bars, cereals, cheese, coated tablets, cocoa nibs, deep-frozen products, dietary supplements, dried and fresh fruit, feed pellets, fish, ham, lettuce, meat, nuts, oil seeds, pharmaceutical materials, plant materials, sausages, soap, spices, vegetables, ... continue to application database

Product Advantages

  • efficient size reduction of up to 4,500 ml feed quantity due to a powerful 1.1 kW motor (peak power input >3 kW)
  • pre- and fine-grinding in one mill: cutting action in regular mode, grinding by impact in reverse mode, pre-grinding in interval mode
  • all parts which come into contact with the sample material are autoclavable
  • perfect adaptation to application requirements by variable speed from 500 to 4000 min-1 with an increment of 100 min-1
  • optional gravitation lid for automatic reduction of the grinding chamber volume
  • 10 SOPs can be stored
  • grinding jar in plastic and stainless steel available


Applications size reduction, homogenization and mixing
Field of application agriculture, biology, food, medicine / pharmaceuticals
Feed material soft, medium-hard, elastic, containing water / fat / oil, dry, fibrous
Size reduction principle cutting
Material feed size* ~ 130 mm
Final fineness* < 300 µm
Batch size / feed quantity* with standard lid 4500 ml
with gravity lid 4000 ml
Grinding chamber volume 5000 ml, reduction with gravity lid
Speed setting digital, 500 - 4000 min-1
Dry grinding yes
Wet grinding yes
Material of grinding tools grinding container: autoclavable plastic PC, stainless steel 1.4435
blade: stainless steel 1.4034
holder for blade: PVDF
sealings: EPDM, FKM
Setting of grinding time digital, 5 s - 3 min
Interval operation yes
Interval time adjustable
Storable SOPs 10
Drive 3-phase asynchronous motor with frequency converter
Drive power continuously 1.1 kW, short term 3 kW
Electrical supply data different voltages
Power connection 1-phase
Protection code IP 20
W x H x D closed 440 mm x 340 mm x 440 mm
Net weight ~ 30 kg
Standards CE

Please note:
*depending on feed material and instrument configuration/settings

Function Principle

Four sharp, robust blades rotate in the center of the grinding container. Depending on the rotational direction, size reduction is effected with the blunt side (preliminary size reduction) or the sharp side (fine grinding). The knifes are protected with a counterblade from damages by hard sample materials.

The knife is indirectly driven by a powerful motor of 1,1 kW which can reach temporary peaks of 3 kW. A pre-selectable speed which is maintained electronically ensures reproducible grinding results.

Subject to technical modifications and errors