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How to Choose the Right Plastic Shredder​ /Crusher

How to Choose the Right Plastic Shredder​ /Crusher

July 07,2025
In the plastic recycling industry, the plastic shredder plays a pivotal role in breaking down plastic materials into smaller pieces for subsequent recycling processes. Making the right choice of a plastic shredder is crucial for ensuring efficient recycling operations. Here are some key aspects to consider when selecting a plastic shredder.
Types of Plastic Shredders
There are various types of plastic shredders designed for different plastics. For instance, the pet bottles shredder is specifically for processing PET bottles. The pp, pe, etc. plastic film crusher is suitable for plastic films made of polypropylene (PP) and polyethylene (PE). The hard plastic grinder is designed to handle hard plastic materials, and the styrofoam crushing machine is used for styrofoam.
Based on the number of blade shafts, plastic shredders can be classified into single - shaft shredders, double - shaft shredders, and multi - shaft shredders. The multi - shaft shredder offers high output, making it ideal for large - scale production scenarios. In contrast, the single - shaft shredder is more flexible and is a good fit for manufacturers with lower output requirements.
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    POWERFUL PLASTIC CRUSHER
    The powerful plastic shredder, with robust blades and high torque, efficiently crushes tough and thick plastic materials, ideal for heavy - duty recycling tasks.
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    LOW NOISE SIDE SHREDDER
    The in - line slow shredder operates at a low speed, minimizing dust and noise, making it perfect for integrating with production lines to handle scrap plastics on - site.
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    SHREDDER MACHINE
    The shredder, boasting strong cutting force, excels at breaking down thick plastics and metals into manageable pieces, serving as a reliable pre - processing tool.

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Crushing Capacity
The capacity of a plastic shredding machine is influenced by several factors. One of them is the inner chamber size. The size of the crusher is determined by the inner chamber. Generally, the width of the crusher's inner chamber ranges from 80 to 150 cm. A wider crusher usually means higher output.
The speed of the crusher pulley also affects the capacity. The speed of the pulley on the crusher is calculated by multiplying the motor speed by the diameter of the small pulley next to it and then dividing by the diameter of the pulley on the crusher. Within the reasonable range of 400 to 800 rpm, a higher speed generally leads to higher output. However, if the speed is too low, the machine may jam, and if it is too high, the machine may vibrate.
The design of screens and blades is another crucial factor. The size of the crushed material is controlled by the mesh size of the screen. For example, the mesh size of pet bottle flakes is usually adjusted to 16 - 18 mm, while that of pvc plastic steel is around 30 mm. Thicker blade thickness and a smaller gap between the blades are beneficial. For example, some efficient shredder blades are about 10 - 30 mm thick, and the gap is usually between 0.2 and 1 mm, which helps increase the output of the shredder and improve plastic recycling efficiency.
Operation and Maintenance
When it comes to operation, choosing a plastic shredder with a high degree of automation can significantly save labor costs.
Maintenance is also an important consideration. It is advisable to choose a crusher that is easy to maintain and has low maintenance costs. For example, some crushers use blades made of 60 si 2 mn, which are durable and resistant to corrosion, thus extending the service life of the machine. Additionally, some manufacturers provide a one - year warranty, which gives strong repair assurance.
In conclusion, choosing the right plastic shredder is of great significance to the entire plastic recycling process. It is necessary to comprehensively consider factors such as equipment type, crushing capacity, operation, and maintenance to make the most suitable choice.

 

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