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Cryogenic Mill with Closed Liquid Nitrogen (LN2) Auto-fill: LPM-01E
  • Cryogenic Mill
  • Cryogenic Mill

The LPM-01E cryogenic mill with closed liquid nitrogen (LN2) auto-fill system is carefully developed by RUISHENBAO® analytical (shanghai) Co., Ltd, which pulverize and mix some soft, temperature-sensitive or high fat content of samples such as candy, chocolate, Soybeans, peanuts and other food samples for sample preparation in laboratory. The grinding jar is continually cooled with liquid nitrogen from the integrated LN2 cooling system before and during the grinding process. Thus the sample is embrittled and volatile components are preserved. The liquid nitrogen circulates through the system and is continually replenished from an auto-fill system in the exact amount which is required to keep the low temperature that evenly reaches -196 °C depending on the continuously filling time and amount of LN2. Powerful impact vibratory disc mill results in a perfect grinding efficiency. The auto-fill system avoids direct contact with LN2 and makes cryogenic grinding very safe. Its versatility (cryogenic, wet and dry grinding at room temperature) makes the LPM-01E the ideal mill for quantities up to 100mL (depend on feed material). Its typical area of application includes food analysis, plastic product analysis, mineral analysis, medical aid analysis, drug performance testing, and identification of textile components and so on.


 Powerful cryogenic grinding by impact and friction from vibratory disc mill, up to 700-1400rpm, continuously adjustable, short grinding time;

 3 different grinding modes (cryogenic, dry or wet at ambient temperature) with various grinding jars for selection;

 Closed LN2 auto-fill system for enhanced safety, avoids any contact of the user with LN2;

 Low LN2-consumption;

 Clearly structured user interface, one-touch operation, easy controlling,;

 Touch-screen programmable controls for cooling and grinding cycles;

 Pneumatic grinding-jar clamping (with air-pressure) for convenient and safe handling: mill only starts if the grinding-jar clamping is correct;

 Noise-insulated grinding chamber and especially safe hood locking;

Fields of application:

Agriculture, chemistry/plastics, construction materials, engineering/electronics, environment/recycling, food, geology/metallurgy, glass/ceramics, medicine/pharmaceuticals.

Typical samples include: animal feed, bones, chemical products, food, hair, oil seeds, paper, plant materials, plastics, sewage sludge, soils, tablets, and textiles, waste samples, wood, wool and so on.

For more information, please contact us by email:

Technical data:




Feed material

Hard, medium-hard, soft, brittle, elastic, fibrous

Size reduction principle

Impact, friction, freeze

Material feed size

≤20 mm

Final fineness

10-100µm(depend on feed material and instrument configuration/settings)

Feed quantity

100mL(depend on feed material)

No. of grinding stations



0-1500rpm, continuously adjustable

Typical mean grinding time

10 min/4min (Freezing/grinding)

Grinding mode

Cryogenic, Dry or wet at ambient temperature

Material of grinding tools

Stainless steel (Other materials can be customized)


AC 380V 3-phase 50Hz 2.2kW



Cover the areas(L×W)


Net weight


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+86 400-871-8622 +86 21-60516422
+86 13681889743

Room1006,No.280,ShangZhongXiLu,Xuhui district,ShangHai,200237,P.R.China

+86 400-871-8622 +86 21-60516422
+86 13681889743

Room1006,No.280,ShangZhongXiLu,Xuhui district,ShangHai,200237,P.R.China

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