Product Description
Plastic Granulator Product Details
1. Hopper
The hopper of a plastic granulator is an important component. It is usually made of high - quality metal or durable plastic materials. The size of the hopper varies depending on the model and production capacity of the granulator. A well - designed hopper has a wide opening to facilitate the easy feeding of raw plastic materials such as plastic scraps, pellets, or powder. Some hoppers are equipped with a cover to prevent dust and foreign objects from contaminating the materials during the feeding process.
2. Screw and Barrel
The screw and barrel play a crucial role in the plastic granulation process. The screw is typically made of high - strength alloy steel, which has excellent wear - resistance and corrosion - resistance properties. It rotates inside the barrel to convey, compress, and melt the plastic materials. The screw design often includes different zones, such as the feeding zone, compression zone, and metering zone. The feeding zone is designed to draw in the plastic materials, the compression zone increases the pressure to melt the plastics effectively, and the metering zone precisely controls the output of the molten plastic.
The barrel is usually made of high - quality steel with a smooth inner surface. It provides a sealed environment for the plastic to be processed. Some barrels are equipped with heating and cooling systems. The heating system, which can use electric heating elements or other heating methods, is used to raise the temperature of the plastic to its melting point. The cooling system, on the other hand, helps to control the temperature precisely to ensure the quality of the molten plastic and prevent over - heating.
3. Die - head
The die - head of a plastic granulator is the part through which the molten plastic is extruded to form granules. It is designed with precision - machined holes or nozzles. The size and shape of these holes determine the size and shape of the granules produced. Die - heads can be customized according to different requirements. For example, for the production of spherical granules, the holes are usually circular and of a specific diameter. The die - head is often made of high - quality alloy steel to withstand the high temperature and pressure of the molten plastic and ensure a smooth extrusion process.
4. Cutting System
The cutting system is responsible for cutting the extruded plastic strands into individual granules. It usually consists of a set of sharp blades. These blades are made of high - quality tool steel to ensure a clean and accurate cut. The speed of the cutting blades can be adjusted according to the extrusion speed of the plastic and the desired granule length. Some advanced cutting systems are equipped with an automatic control mechanism that can adjust the cutting speed in real - time to ensure the uniformity of the granule length.
5. Control System
Modern plastic granulators are equipped with an advanced control system. The control panel allows operators to set and adjust various parameters such as the temperature of the barrel and die - head, the rotation speed of the screw, and the cutting speed. The control system often has a digital display to show the current settings and operating status of the granulator. Some high - end models also have a remote - control function or can be connected to a computer for more precise control and data monitoring. The control system is designed to ensure the stability and consistency of the granulation process and improve the quality and efficiency of the product.
6. Cooling and Drying System
After the granules are cut, a cooling and drying system is used to cool and dry them. The cooling system can use air - cooling or water - cooling methods. Air - cooling is more common and environmentally friendly. It uses a fan to blow cold air over the granules to lower their temperature quickly. The drying system is used to remove any remaining moisture from the granules. This is especially important for plastics that are sensitive to moisture. A well - designed drying system can ensure that the granules have a low moisture content, which is beneficial for their subsequent storage and processing.
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