How does a plastic shredder work

Plastic crusher is a mechanical equipment used for crushing plastic raw materials. Its working principle and main components are introduced as follows:

Working principle

The plastic crusher mainly utilizes the principles of mechanics. When plastic raw materials enter the crushing chamber from the feeding port, the electric motor drives the moving blade disc to rotate at high speed. During the high-speed rotation of the moving blade, it forms a relative motion trend with the fixed blade, and uses the gap formed between the moving blade and the fixed blade to create a cutting edge for plastic crushing and shearing, thereby impacting and cutting the plastic raw materials. Plastic raw materials are gradually broken into small pieces, which enter the screening chamber and are filtered through the sieve. Plastic particles that meet the particle size are discharged into the storage bin through the discharge port, or installed with a transmission device and directly enter the plastic injection molding machine or extruder for processing. Particles that cannot pass through the sieve will re-enter the crushing chamber for secondary crushing until they meet the particle size requirements.

Main components

• Feed inlet: used for feeding plastic raw materials to be crushed.
• Crushing chamber: It is the core part of a plastic crusher, usually welded from high-strength steel plates, capable of withstanding high pressure. There are cutting tools installed in the crushing room for crushing plastic raw materials.
• Rotating components: including the main shaft, motor, and reduction device, used to drive the tool to rotate at high speed.
• Cutting tool: generally a high-speed rotating saw blade or blade, installed inside the crushing chamber, used for impact and cutting of plastic raw materials.
• Sieve: located below the crushing chamber, used to filter out plastic particles that meet the particle size requirements.

Advantages and Characteristics

• Simple structure: easy to maintain, easy to clean and repair.
• High crushing efficiency: Strong production capacity, suitable for large-scale production.
• Low energy consumption: Low operating costs help reduce production costs.
• High safety performance: equipped with motor overload and electric interlock protection system to ensure safe use.

In general, plastic crushers use an electric motor to drive the cutting tools to rotate at high speed, impacting and cutting the plastic raw materials, and then filtering out plastic particles that meet the particle size through a sieve. It has a simple structure, easy maintenance, high crushing efficiency, low energy consumption, and high safety performance, making it an important equipment in the field of plastic recycling and reuse.