Liquid nitrogen system of grinding

The utility model belongs to the technical field of a liquid nitrogen grinder technique of use among physiology, biochemistry, the molecular biology and specifically relates to a liquid nitrogen system of grinding is related to. Its characteristics are including grinding the pestle, grinding pestle periphery be provided with and grind pestle dull polish plastics overcoat, the mortar with grind the pestle and correspond the setting and in the cryostat, be provided with mortar dull polish plastics overcoat on the mortar, the cryostat in still correspond and be provided with the centrifuging tube mounted frame and grind the pestle mounted frame. It can make things convenient for broken various specimen sample effectively fast, especially to the scientific research of big batch sample number, not only can save a large amount of manpowers and time, still has portably, swift, high -efficient and low -cost advantage, and can not lead to the fact the pollution between the specimen sample. This system can use under no