Applications：
Cryogenic pulverizer system can be used for all kinds of materials which can not be crashed/grinded in normal temperature, widely apply for all kinds of oily food containing sugar, chemical, petrochemical, machinery, shipbuilding, and auto-industry, costume, coating, printing, resin, engineering plastic, rubber, shoe material, thermoplastic material，thermosol, nylon, polyester, PP, PE, thermoplastic-elastomer TPU/TPEE, Nylon material PA11、PA1010、PA12、PA6、PA66、PA610 copolymer nylon, PET, PTFE, PE, EVA, food industry (chilli powder), Chinese and Western Medicinal products’ super fineness grinding.

Description:
Cryogenic grinding—also known as freezer milling or cryomilling—chills materials to extremely low temperatures before reducing them to fine particles. This technique solves a critical challenge in thermoplastic processing: at ambient temperatures, these materials soften, adhere into lumps, and clog screens, but when chilled with dry ice, liquid CO₂, or liquid nitrogen, they can be finely ground for electrostatic spraying and other powder applications. Beyond plastics, cryogenic grinding enables nucleic acid extraction (requiring −80 °C or lower) and provides the only viable method for processing soft or flexible materials that cannot be handled at room temperature.

Configuration：
Liquid nitrogen tank: provides an ultra-low temperature environment of -196 ℃, which instantly embrittlement the cable sheath and reduces the difficulty of peeling, especially suitable for difficult to handle materials such as rubber/PVC.
Double blade peeling device: symmetrical blades synchronously cut the brittle sheath, matched with adjustable spacing design, suitable for 2-50mm ² cables, ensuring zero damage to the core wire.
Pneumatic separation system: After peeling, the sheath and core wire are automatically separated by high-pressure airflow, with a separation rate of 99.8%, avoiding copper wire deformation caused by manual tearing.
Mechanical grinding component: Grind the recovered sheath and adjust the particle size to 1-5mm for subsequent regeneration and granulation.
Dust recovery system: The induced draft fan and cyclone separator form a negative pressure dust removal network, which collects grinding dust in real time with an emission concentration of less than 5mg/m ³, in compliance with environmental standards.

Working Principle:
The PNCP series low-temperature crusher uses a liquid nitrogen cryogenic system to rapidly cool the material to extremely low temperatures, and utilizes precision temperature control technology to bring the material into an ideal brittle state; Subsequently, the high-speed rotating alloy steel impeller achieves efficient crushing through a multidimensional crushing mechanism, combined with blade impact, groove disc shearing, and material self grinding; The crushed material enters the air sieve cone classifier, and the particle size is precisely controlled through airflow regulation and variable frequency speed regulation of the cone classifier wheel. Unqualified materials are automatically returned through a closed-loop system; The equipment is equipped with a cold energy recovery device to achieve nitrogen closed-loop circulation and intelligent dehumidification, significantly reducing operating energy consumption; Ultimately, it can achieve ultrafine grinding effect, with efficient crushing, precise grading, and environmentally friendly operation characteristics, especially suitable for fine processing of heat sensitive and high toughness materials.

Features:
While grinding, the cooling source of the cryogenic pulverizer system is forming a closed-circuit circulation system, so the cooling source will be thoroughly used, save energy; and the particle fineness degree ranges from 10-700 mesh, even reach micron fineness degree. Apply liquid nitrogen as grinding medium, achieve cryogenic grinding, anti-explosion, anti-oxidation, etc effect.

In the pulverizing system, the cold source forms a closed cycle system, which makes full use of energy and saves energy. The temperature of the cold source for grinding can be reduced to 196 degrees below zero. According to the brittle point temperature of the material, the temperature can be controlled in the grinding process, and the best grinding temperature can be selected, so as to reduce the energy consumption. The grinding fineness can reach 10-700 meshes, and even reach micron fineness. In addition, liquid nitrogen is used as grinding medium to achieve ultra-low temperature comminution, which can achieve the comprehensive effect of explosion-proof and oxidation resistance of materials.

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