Grinding Mill

The special grinding machine for plastic extrusion production line is a core auxiliary machine at the front end of the production line for raw material processing and waste recycling. It is specifically designed for grinding and powdering plastic materials, suitable for various plastics such as PVC, PE, PP, and PS. It is widely used in powder extrusion, modification granulation, and waste recycling grinding processes. Based on the working principle of high-speed shearing by the blades and squeezing and grinding by the grinding discs, this machine grinds plastic particles and crushed materials into uniform plastic powder with adjustable fineness, meeting the particle size requirements of different extrusion processes. The equipment is mostly in vertical or horizontal structures, equipped with wear-resistant alloy grinding discs/blade and grading screening devices, which can effectively prevent over-grinding and agglomeration, ensuring the uniformity of the powder. The entire machine is adapted to the working conditions of the plastic workshop, with dust-proof sealing, negative pressure discharge, and cooling and temperature reduction structures. It avoids plastic melting due to high temperature during the grinding process and the discharge can directly connect to the mixing machine and feeding machine, seamlessly connecting with the extrusion production line, making it a key equipment for achieving plastic powder extrusion and high-value recycling of waste.

Specialized for specific materials and precise grinding: Specifically designed for PVC/PE/PP and other plastics, the grinding discs and blades are made of wear-resistant alloy materials, capable of processing plastic particles and crushing debris, meeting the requirements for raw material processing in extrusion lines.

Adjustable fineness, suitable for various processes: The grinding particle size can be precisely adjusted, meeting the requirements of different extrusion processes for powder mesh numbers, ensuring the mixing of powder and additives, and the extrusion molding effect.

High-efficiency grinding, matching production capacity: Dual grinding structure of shearing + compression, with high grinding efficiency, uniform output without over-grinding, and the production capacity can be matched to the raw material supply rhythm of the extrusion production line as needed.

Front-end raw material grinding: Grind plastic particles into powder with the specified fineness to meet the process requirements for direct extrusion molding, and be suitable for the extrusion production of special profiles and pipes.

Regrind of waste materials: Recrune the plastic scraps from the extrusion line for secondary grinding to produce recycled powder. This powder can be mixed with new materials in proportion to achieve high-value recycling of waste materials and reduce raw material costs.

Pre-treatment of modified raw materials: Grind the basic powder materials for the plastic modification extrusion process to facilitate the full mixture of the powder with modification aids, and improve the uniformity and molding performance of the modified materials.

Fine-graining of small-sized raw materials: Fine-grind plastic small materials with uneven particle sizes to unify the particle size of the raw materials, ensuring the precise raw material ratio in subsequent mixing and extrusion processes and improving the quality of the products.

Closed-loop raw material recycling: As a key equipment of the extrusion production line's material recycling system, it connects the crusher and the mixing machine to form a "crushing - grinding - mixing - extrusion" waste material recycling closed loop, achieving material recycling and utilization.