Knife Mill

Knife Mill

  • Material feed size: ~ 130 mm
  • Final fineness: < 300 µm
  • Up to 4,500 ml feed quantity due to a powerful 1.1 kW motor

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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, ... 

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

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.

Applicationssize reduction, homogenization and mixing
Field of applicationagriculture, biology, food, medicine / pharmaceuticals
Feed materialsoft, medium-hard, elastic, containing water / fat / oil, dry, fibrous
Size reduction principlecutting
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 volume5000 ml, reduction with gravity lid
Speed settingdigital, 500 - 4000 min-1
Dry grindingyes
Wet grindingyes
Material of grinding toolsgrinding container: autoclavable plastic PC, stainless steel 1.4435
blade: stainless steel 1.4034
holder for blade: PVDF
sealings: EPDM, FKM
Setting of grinding timedigital, 5 s - 3 min
Interval operationyes
Interval timeadjustable
Storable SOPs10
Drive3-phase asynchronous motor with frequency converter
Drive powercontinuously 1.1 kW, short term 3 kW
Electrical supply datadifferent voltages
Power connection1-phase
Protection codeIP 20
W x H x D closed440 mm x 340 mm x 440 mm
Net weight~ 30 kg

*depending on feed material and instrument configuration/settings