Retsch CryoMill Ball Mill, 100–240 V, 50/60 Hz

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  • (please order Autofill with LN2 container and safety valve, grinding jars and balls separately) 


Applicationssize reduction, mixing, homogenization, cell disruption
Field of applicationagriculture, biology, chemistry / plastics, construction materials, engineering / electronics, environment / recycling, food, geology / metallurgy, glass / ceramics, medicine / pharmaceuticals
Feed materialhard, medium-hard, soft, brittle, elastic, fibrous
Size reduction principleimpact, friction
Material feed size*<= 8 mm
Final fineness*~ 5 µm
Batch size / feed quantity*max. 20 ml
No. of grinding stations1
Setting of vibrational frequencydigital, 5 - 30 Hz (300 - 1800 min-1)
Typical mean grinding time10 min / 4 min (cooling / grinding)
Dry grindingyes
Wet grindingyes
Cryogenic grindingyes
Cell disruption with reaction vialsyes
Self-centering clamping deviceyes
Type of grinding jarsscrew top design
Material of grinding toolshardened steel, stainless steel, zirconium oxide, PTFE
Grinding jar sizes5 ml / 10ml / 25 ml / 35 ml / 50 ml
Autofill50 l
Setting of grinding timedigital, 30 s - 99 min
Storable SOPs9
Electrical supply data100-240 V, 50/60 Hz
Power connection1-phase
Protection codeIP 30
Power consumption260 W
W x H x D closed395 x 373 x 577 mm (D: 710 mm with exhaust tube)
Net weight~ 45 kg

*depending on feed material and instrument configuration/settings 

  • £9705.00

Cryogenic grinding is a process where thermally sensitive and elastic substances are successfully processed by cooling with liquid nitrogen. The CryoMill is a laboratory ball mill specifically designed for this application. It features an integrated cooling system that continually cools the grinding jar with liquid nitrogen before and during the grinding process. Thus, the sample is embrittled and volatile components are preserved.

The liquid nitrogen is continually supplied from an autofill system in the exact amount required to keep the temperature at –196 °C. The user never comes into direct contact with LN2 which ensures a high degree of operational safety. The CryoMill's versatility (cryogenic, but also wet and dry grinding at room temperature) makes it the ideal grinder for sample quantities up to 20 ml. Powerful impact ball milling results in highest grinding efficiency.  


  • powerful cryogenic grinding by impact and friction with up to 30 Hz
  • 3 different grinding modes (cryogenic, dry/wet at ambient temperature)
  • closed LN2-system (Autofill) for enhanced user safety
  • screw-top jars ensure the convenient, leak-proof operation
  • wide range of accessories including various  jar and ball sizes, adapter racks and LN2 feeding system
  • optional zirconium oxide jars specifically designed for cryogenic grinding
  • 9 programmable cooling and grinding cycles (10 s to 99 min)


The CryoMill is a cryogenic grinder designed with user safety in mind. The liquid nitrogen flows through the closed system and the user never comes into direct contact with LN2 which ensures a high degree of operational safety. The automatic cooling system guarantees that the grinding process is not started before the sample is thoroughly cooled. This results in reduced consumption and guarantees reproducible cryogenic grinding results.

The CryoMill is very easy to operate. Parameters such as oscillation frequency, pre-cooling or grinding time can be digitally set via a clearly structured keypad. LEDs in the display indicate the current state of operation, e.g. cooling or grinding.

Usually, grinding only takes a few minutes so that the sample does not get warm during the process. If, however, longer grinding times are required, it is also possible to pre-select periods of intermediate cooling and the number of cryogenic cycles.

All instrument parameters are retained during standby operation for subsequent processes. The laboratory mill can also be operated without cooling which makes it suitable for a vast range of applications.


Due to the automatic embrittlement of the samples during cryogenic grinding the CryoMill is suitable for pulverizing, for example, waste, soil, chemical products, tissue, hair, wood, sewage sludge, bones, plastics, oil seed, paper, plants, pills, textiles, animal feed, wool etc.


The grinding jar of the CryoMill performs radial oscillations in a horizontal position. The inertia of the grinding balls causes them to impact with high energy on the sample material at the rounded ends of the jar and pulverize it.

The grinding jar is continually cooled with liquid nitrogen from the integrated cooling system before and during the cryogenic grinding process.

    • Weight
      60000 g
    • SKU
    • Commodity Codes
  • Manufacturer
    Retsch GmbH
  • Country of Origin