Knife Mill

Knife Mill

  • Material feed size: 40 mm
  • Final fineness: < 300 µm
  • Up to 700 ml feed quantity due to a powerful 1000 W motor

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The knife mill GRINDOMIX GM 200 is the ideal instrument for grinding and homogenizing foods and feeds.

It allows to process sample volumes up to 0.7 liters quickly and reproducibly. 

With two sharp, robust blades and a powerful 1000 W motor, 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. A wide selection of lids and containers allows for adaptation of the mill to individual application requirements. The GRINDOMIX GM 200 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 700 ml feed quantity due to a powerful 1000 W motor
  • pre- and fine-grinding in one mill: cutting action in regular mode, grinding by impact in reverse mode, pre-grinding in interval mode
  • perfect adaptation to application requirements by variable speed from 2.000 to 10.000 min-1 with an increment of 500 min-1
  • Boost function with speed of 14.000 min-1
  • 8 SOPs and 4 sequence can be stored
  • touch display with access to MyRETSCH web portal with product and application related information
  • optional gravity lids or volume reduction lids for automatic reduction of the grinding chamber volume
  • grinding jar in plastic, stainless steel and glass available
  • all parts which come into contact with the sample material are autoclavable

Function Principle

Two 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 knife is indirectly driven by a powerful motor of 1000 W. A pre-selectable speed which is maintained electronically ensures optimum adaptation to individual application requirements as well as 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*40 mm
Final fineness*< 300 µm
Batch size / feed quantity*with standard lid 700 ml
with reduction lid 150-300 ml
with gravity lid 300 - 600 ml
Grinding chamber volumewith standard lid 1000 ml
with reduction lid 300 ml/500 ml
with gravity lid 400 - 800 ml
Speed settingdigital, 2.000 - 10.000 min-1 (14.000 min-1 BOOST)
Material of grinding toolsblade: stainless steel / titanium
fixation of blade: PVDF
container: autoclavable plastic / plastic PP / stainless steel / glass
Setting of grinding timedigital, 1 s - 3 min
Interval operationyes
Storable SOPs8 programms / 4 sequences
Driveseries-characteristic motor
Drive power~ 1000 W
Electrical supply datadifferent voltages
Power connection1-phase
Protection codegrinding chamber and keypad IP 42
Power consumption~ 1000 W
W x H x D closed350 x 275 x 392 mm (opened: 350 x 410 x 553)
Net weight~ 10 kg

*depending on feed material and instrument configuration/settings