Pet feed, fish feed, twin screw extruder

Pet feed, fish feed, twin screw extruder

The working principle of a twin-screw puffing machine is to push the material forward through a pair of parallel meshing screws, which are divided into a feeding section, a compression melting section, and a uniform section. In the feeding section, materials enter the barrel from the hopper and are gradually compacted along the screw groove direction as the screw rotates. Under the action of high temperature and high pressure, the material is mixed, sheared, melted, and matured, and finally extruded out of the barrel to complete the puffing process. ‌

working process

Material conveying section: The material enters the barrel from the hopper, and is conveyed forward along the screw groove direction and gradually compacted as the screw rotates.

Compressed melting section: The material is mixed, sheared, and melted at high temperature and high pressure to reach a mature state.

Uniform section: After uniform treatment, the material is extruded through a mold to complete the puffing process.

application area 

Twin screw puffing machines are widely used in the field of food processing, and can produce various puffed foods, pet food, fish and shrimp feed, etc. Due to its high efficiency and easy control, it is also suitable for conducting small-scale experiments in the laboratory. In addition, twin-screw puffing machines have the advantages of strong adaptability, slip conveying, and self-cleaning, but their structure is complex, and the investment and operating costs are high. They are usually used for high value-added aquatic and pet feed production.

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