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About Extrusion Pelletizer

2022-03-01

Extrusion granulator is a dry granulation process that uses pressure to agglomerate solid materials. This works by squeezing the material between two counter-rotating rollers driven by eccentric sleeves or a hydraulic system. When the solid material is squeezed, the air between the powder particles is first removed to rearrange the particles to eliminate the gap between the materials.

When the brittle material is squeezed, part of the particles are crushed, and the fine powder fills the gaps between the particles. In this case, if the free chemical bonds on the newly generated surface cannot be quickly saturated by atoms or molecules from the surrounding atmosphere, newly formed When the surfaces come into contact with each other, a strong recombination bond is formed. When a plastic material is squeezed, the particles deform or flow, creating a powerful van der Waals attraction.

In the final stages of the extrusion process, fixed bridges are formed when the energy supplied to the system by pressure creates hot spots at the contact points between the particles and the material melts, the temperature drops and the material cools. The large pieces produced by extrusion are 5-20mm thick, and the surface density is 1.5-3 times that of the feed.

The above is the information and trends related to extrusion granulator. If you want to know more about our company's dynamics or products, you can consult us. We also sell Dispersion Kneader, Rubber Internal Mixer, Rubber Open Mill, Two Roll Mill, Plastic Granulator and Extrusion Pelletizer.

Extrusion Pelletizer

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