4 Key Considerations When Choosing a Plastic Granulator

Plastic granulator is one of the most important auxiliary equipment in plastic product processing factories. It can reduce various kinds of plastic materials into small granules for reuse. Its working principle is quite simple. The machine works by shearing or tearing plastic materials into smaller particles. Different types of plastic have different physical characteristics which determine their reaction to shearing or tearing during the size reduction process. Therefore, the type and configuration of a granulator must be determined according to the specific needs of a factory or factory operation. There are four key considerations when choosing a plastic granulator: the size reduction requirement, the blades, the transmission system and the power supply.

The size reduction requirement is the most important factor in deciding the best plastic granulator to use. The size reduction requirement is the maximum size of a piece of plastic material that can be cut into granules by a granulator. For example, a bale of loose laundry detergent bottles is much harder to shear into granules than a dense bale of the same bottle. A granulator should be chosen that can handle the largest pieces of plastic that will be fed into it.

A plastic granulator is a large electric motor that turns a rotor with cutting blades inside a closed chamber. When used plastic is fed into the chamber, the rotating blades shear the plastic into granules. A screen is located in the chamber to serve as a sifter and ensure that all granules are of an acceptable size before they leave the machine.

To increase the efficiency of a granulator, the blades must be oiled regularly and the granulation chamber must be wiped clean after each large job the machine completes. In addition, the screen should be removed and cleaned after each use. This is especially important for contaminated or sticky plastics that may be difficult to remove from the machine after shredding.

The transmission system of a plastic granulator is the set of mechanisms that transfer the electrical energy from the motor to the rotary blades of the granulator. This system is mainly composed of a drive shaft, a rest shaft, the blades and the bearings. The transmission system of a plastic granulator also includes any mechanism that keeps the hopper from touching the blades and any mechanisms that guide the plastic into the rotary blades.

A granulator’s panel gaps provide leakage paths for sound, and they are often filled with open-celled foam to improve sound absorption. Tests have shown that these simple retrofits can reduce the noise levels of a granulator by 4dB or more, depending on the model of granulator and the modification. This is a significant reduction in sound levels, especially for community, library, maker space, or fab lab-based distributed recycling. Moreover, the modified granulator is more energy efficient, too. As a result, it can be operated for longer without overheating. This makes the granulator an appropriate technology for reducing waste in the workplace and at home. plastic granulator

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