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

Cryogenic Mill, LPM-01
The LPM-01 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 of user that evenly reach -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-01 the ideal mill for quantities up to 100-500 mL (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. Advantage

 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);

 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;

 High-capacity grinding up to 500mL of hard, medium-hard, soft, brittle, elastic or fibrous samples (max. equivalent of 500g, depend on feed material);

 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;


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■ Application area

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.



■ Technical parameter

Model

LPM-01

Feed material

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

Size reduction principle

Impact, friction, freeze

Material feed size

≤15 mm

Final fineness

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

Feed quantity

100-500mL(depend on feed material)

No. of grinding stations

1

Speed

900-1400rpm, continuously adjustable

Typical mean grinding time

10 min/4min (Freezing/grinding)

Grinding mode

Cryogenic, Dry or wet at ambient temperature

Grinding jar sizes

2100mL(Other sizes can be customized)

Material of grinding tools

Stainless steel (Other materials can be customized)

Power

AC 220V 2-phase three-wire 50Hz 3kW

DimensionsL×W×H

880×750×1100mm

Cover the areasL×W

1200×1000mm

Net weight

300kg


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