Fish Feed Machine Knowleagde

Fish feed making machinecan be divided into dry type and wet type fish feed extruder according to the moisture of the raw materials.

1. Dry type
Heating the materials by the frictional force, this floating fish feed extruder machine squeezes raw materials out of the holes of the mold under the action of screw extruder. The pressure and temperature of the pellets sharply decreases when coming out of the machine, and the moisture evaporates. Then materials are puffed and become pellets with porous structure. During the process, the moisture ranges from 15 to 20 percent.
2. Wet type
The working principle of wet type is similar to dry type. But the former needs to add water or steam into the machine to increase the moisture to 20 percent, or more than 30 percent during the process. It increases the temperature of the materials by steaming.
Merits of Feed Pellets Made by Fish Feed Pellet Mill
1.Feed pellets are germfree, well cooked, and easy to digest for the fishes.
2.The protein of the materials is denaturalized after being processed by the floating fish feed extruder. It rises the digestibility and tastiness of the feed.
3.The pellets are light, so that they can float on the surface of water. It reduces waste of feed and pollution of the water.
4.Feed pellets contains low moisture, which is convenient for storage and transportation.