Cryogenic pulverization is a cutting-edge process used to grind materials that are difficult or impossible to pulverize at room temperature. Our Cryogenic Pulverizer system utilizes liquid nitrogen (LN₂) as a cooling medium to bring materials to a brittle, fracture-prone state, allowing for efficient grinding.

Working Principle:

The pulverization process begins with heat exchange between the liquid nitrogen and the material. Once the material becomes brittle due to ultra-low temperatures (typically below -40°C to -80°C), it enters the mechanical pulverizing chamber. Inside the chamber, the material is subjected to repeated impact, collision, shearing, and milling, ultimately reducing it to fine powder.

Application in Polymer Processing:

Polymers such as PE (Polyethylene), PP (Polypropylene), PVC, LDPE, LLDPE, HDPE, PS, EVA, PTFE, ABS, MBS, PA, PET, and others—commonly available in pellet or granule form—can be pulverized into 100–300 mesh powders using this technology. Pre-shredding may be necessary depending on the polymer type and size.

Cryogenic pulverization is particularly beneficial when fine-size polymers need to be uniformly blended with functional additives such as:

• Pigments

• Plasticizers

• Anti-oxidants

• Compatibilizers

• Anti-static agents

These additives are often used in very small quantities and have extremely fine particle sizes, making conventional mixing challenging. CryoGrinding ensures homogeneous blending and dispersion, leading to enhanced product performance.

Key Advantages:

• Enables pulverization of heat-sensitive and tough materials without degradation.

• Facilitates recycling of composite and non-biodegradable industrial waste plastics.

• Supports value-added processing by converting scrap materials into usable powder.

• Offers cost-efficiency in terms of raw material usage and energy savings while achieving required product quality.

Customization and Material Compatibility:

Our pulverizer systems are highly versatile and can be customized to suit a wide range of materials. In addition to polymers, we offer solutions for pulverizing adhesives, waxes, and other specialty materials upon request.