What Is ​A PET Bottle Crushing Machine?

A PET bottle crushing machine, also known as a PET bottle scrap grinding machine, is a key piece of equipment in the plastic bottle recycling process. It is mainly used to crush PET bottles into small flakes for subsequent cleaning and recycling. Here is a detailed introduction:

Working Principle

The PET bottle crushing machine crushes PET bottles through the relative movement between the fixed knife and the moving knife in the crushing cavity. The two blades form a shear angle to cut the plastic bottle, gradually crushing it into small pieces.

Main Features

High - efficiency Crushing: Adopting advanced blade materials and cutting technologies, such as 9CrSi material blades, it can quickly and efficiently crush PET bottles into uniform small pieces.

Strong Applicability: It can crush not only PET bottles but also other plastics such as PVC, PP, and PE. Some models can handle flattened bottles and bottle bricks.

Durable and Wear - resistant: The blades are usually made of special alloy steel materials, which have high wear - resistance and long service life. The main body and spindle of some high - end models are processed by a four - axis CNC machining center, with high structural strength.

Easy to Operate: The operation is simple, and some machines are also equipped with an automatic discharge device, such as a spiral discharger, which can automatically push out the crushed plastic bottle pieces.

Technical Parameters

Production Capacity: Different models have different production capacities. Common models have a production capacity ranging from 200 kg/h to 5000 kg/h.

Motor Power: It is related to the production capacity and model of the machine. Generally, it ranges from 22 kW to 160 kW.

Models and Applications

Small - scale Models: Suitable for small - scale recycling plants or workshops with low production capacity requirements. They have the advantages of small size, low price, and easy operation.

Large - scale Models: Mainly used in large - scale PET recycling production lines, which can be matched with other equipment such as bottle washing lines and pelletizing machines to form an automated recycling production line.