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Waste Plastics Crushing Processes

GEP Ecotech is a solid waste recycling solution provider. We provides a wide selection of industrial shredders and crushers to satisfy your material size reduction requirements, which feature stable performance, high production efficiency and easy maintenance. We pay attention to every detail of the machine to help you improve productivity, save energy and maximize economic benefits. In addition to standard industrial shredder and crushers, customized size reduction machines can also be offered according to your material shredding requirements. A variety of screens and rotors are selectable to achieve the best processing performance.

In waste plastics recycling process, waste plastics crushing is one of the most important processes, the volume of waste plastic is reduced, which is convenient for subsequent processing. The equipment mainly includes the cutting machine and the crushing machine, whose basic principle is to destroy the material’s integrity depend on the shear strength and the impact strength.

Different shredder equipment has their own advantages. Relatively speaking, waste plastic crushing machine is suitable for shredding soft small, broken materials, such as PE film, beverage bottles, EPS shredding machine is suitable for crushing large lump material, rolled into a tube, extruder head materials, such as bundles of woven bags, etc..

The commonly used crushing equipment has different kinds of compression type, impact type, shear type, knock type and grind type. The choice of crushing equipment mainly depends on the type, shape and the degree of the grinding material. Different materials should be used in different crushing equipment. Hard PVC, polystyrene, organic glass, phenol-formaldehyde resin, urea formaldehyde resin, polyester resin, etc. are brittle plastic. They are fragile brittle, once compressed, are very easy to broke into small pieces, this type of plastic is suitable for crushing.

And for the ductile plastic, such as polyethylene, polypropylene, polyacid amine, ABS plastic, etc., are suitable for shear-type polystyrene crushing equipment, because they are easy to be affected by outside compression, bending impact and other forces.

In addition, for elastic materials, soft materials, it is best to use low-temperature crushing. In addition, we should determine the extent of crushing equipment according to the need to crush the waste. If crushing the large pieces into small pieces, we should use compression, impact, or cutting equipment; if putting small pieces into fine powder, we should use abrasive grinding equipment.

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