Grindomix GM 300 Knife Mill

The knife mill GRINDOMIX GM 300 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 four 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 300 meets and exceeds all special laboratory and analytical requirements and is a professional device superior to any commercial household mixer.

Application Examples

Candy, Cereals, Cereal bars, Cheese, Cocoa Nibs, Coated Tablets, Frozen Products, Dietary Supplements, Dried and Fresh Fruit, Feed Pellets, Fish, Ham, Lettuce, Nuts, Meat…

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 sequences 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.

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