Food for fishes always contains rich crude protein, but the crude protein in the food is hard to digest for the fish. After being processed by the fish feed pellet extruder, the feed can be easy to digest. Similar with wet type fish feed extruder, dry type also uses alloy steel. Dry type fish feed extruder is suitable for small- or medium-scale fish farms and fish feed industry, for processing shrimp feed, prawn feed, floating fish feed, sinking fish feed pellets and pet feed pellet.

Under the action of the frictional force of the principal axis and flat-die, the compression roller spins. The high temperature between the roller and die ripens the starch of the materials, and the protein becomes congealed. Then the fish feed is extruded from the holes of the die. Fish feed pellets are conveyed out of the extruder. Additionally, we can choose the length of the feed by regulating the angle of the cutting knife.

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