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What is the function of a feed extruder?

Oct 21, 2024

Feed extruders are widely used in livestock and poultry breeding, aquaculture, and pet food production. Including hoppers, extrusion chambers, heating systems, and discharging devices, it ultimately produces high-quality feed.
Feed extruders are an important feed processing equipment, which is mainly used to extrude feed raw materials under high temperature and high pressure to change the physical form and internal structure of the feed, and improve the taste and nutritional value of the feed. This machine is widely used in livestock and poultry breeding, aquaculture, and pet food production, and is an indispensable part of modern breeding.

 

pet food extruders

 

Model 40 60 70 80
Power 5.5KW 15KW 18.5KW 22KW
Yield 120-150 180-220 240-300 400-500
Weight 350KG 450KG 500KG 580KG
Size(mm) 1500*1100*1100 1600*1300*1250 1600*1300*1250 1800*1400*1350


The working principle of the feed extruder is relatively complex, but in short, it is to mature the feed raw materials under high temperature and high pressure by means of spiral extrusion. During the extrusion process, the water in the feed raw materials evaporates rapidly to form gas, and at the same time, the starch and protein molecules in the raw materials break and reorganize to form a new material structure. This change makes the volume of the feed raw materials larger, the taste better, and easier to digest and absorb.
Feed extruders usually include hoppers, extrusion chambers, heating systems, and discharging devices. The raw materials enter the extrusion chamber from the hopper and are heated and pressurized by the heating system to form a high-temperature and high-pressure environment. In this process, the moisture and steam in the raw materials evaporate rapidly to form a porous structure, which increases the specific surface area and volume of the feed. Finally, the extruded feed is discharged through the discharging device and becomes a high-quality feed product after cooling and drying.

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