Ultrafine pulverizer can be pulverized at room temperature; obtaining a thinner powder than normal temperature; a good fluid powder; preventing material from deteriorating the material due to crushing heat, maintaining the color, fragrance, taste and nutrient ingredient of the crushing material ; Prevent dust explosion during crushing, reducing noise; high crushing ability. The ultrafine pulverizer is a super-small grinding ultra-fine pulverizer, suitable for university laboratories, factory laboratories, pharmacies, Chinese medicine hospitals, and families to do fine grinding. Hongxu series models can be widely used in the ultrafine pulverization needs of Chinese medicine, western medicine, pesticide, biological, cosmetics, food, feed, chemical, ceramics, metallurgical minerals. Especially for fiber (such as Chinese herbal medicine, ganoderma lucidum, etc.), high hardness (such as diamond, ceramics, etc.), the crushing effect of high hardness (such as diamond, ceramics, etc.) is more perfect. The complete equipment is mainly composed of JZC or JZL crusher, including liquid nitrogen storage systems, liquid nitrogen control systems, material crushing systems, operational control systems, and refrigerated systems. Applicable to pollining processing under various materials and working conditions, the crushing capacity is 1800 ~ 2000 t / a (food industry), and the crushing temperature is room temperature ~ -196 ° C. This process can be widely used in paprika, pepper, black pepper, white pepper, green pepper, cinnamon powder, cumin powder, grass powder, big red robe pepper, cinnamon powder, red rice flour, nutmeg powder, Red hyanpy pepper, garlic powder, octagonal powder, clove powder, fan powder, fragrance, nutmeg powder, grass fruit powder, yellow ginger powder, ginger powder, five fragrant powder, fresh ginger powder, curry powder, ginger powder. Onion powder, mustard powder, meat powder, when the powder, mountain powder, onion powder, cumin powder, fragrance powder, five fragrance powder, smashing powder and other food industrial materials.