Floating fish feed machines also called fish feed extruders, are widely used for producing high-grade aquatic feed for fish, such as catfish, tilapia fish, shrimp, crab, etc. It can also make pet food for cats, and dogs. The power supply can be divided into diesel engine feed extruder and electric engine feed extruder.
The diesel engine fish feed extruder is driven by a diesel engine and operates on this basis. The capacity is from 40 kg to 400kg per hour. Low noise, high output, and low energy consumption. It is good for storage and transportation. The operation and maintenance of this equipment are simple, safe, and reliable. More importantly, a floating fish feed making machine with diesel engine does not need electricity, and the machine work can be done anywhere, solving the problem of inconvenient electricity use. It is used in the production o f floating fish feed, suitable for small, and medium farm production.
Electric type fish feed extruder is driven by a electrice engine and operates on this basis. The capacity is from 40 kg to 4000kg per hour. In general, the production principle is the same in all respects. Just the different type power. If there is a lack of electricity in your local area, or the electricity is unstable, it is recommended to choose the diesel type, but if the electricity is stable, the electric motor is recommended.
The dry type fish feed extruder has a screw and a threaded sleeve, which have the function of mixing and twisting. After the raw material enters the expansion chamber, the material is squeezed, rubbed, sheared, etc. between the screw sleeves, and the internal pressure is continuously increased, up to 4Mpa, and the temperature is continuously rising, up to 140 degrees Celsius. During the period of 3-7s, the temperature and pressure increase sharply, and the structure of the material changes, which further gelatinizes the starch, denatures the protein, destroys the crude fiber, and kills harmful bacteria such as Salmonella. The high temperature and high pressure materials come out from the discharge port, and the pressure is suddenly released in an instant, and the water is partially flashed. After cooling, the material is loose and porous, and the expanded material is in the form of agglomerates, flocs or coarse chips.
Grinding, mixing, squeezing and drying are the main methods of making floating fish feed. While the initial capital investment to purchase equipment may be larger, higher productivity and improved machine quality will make the money well worth the money. Therefore, any fish farmer interested in a sustainable and long-term business should consider investing in a floating fish feed extruder. It can improve feed quality, reduce the cost of floating fish feed pellets, and increase farmers’ income. Of course, you can also mass produce it and sell it to other fish farmers. Fish feed can also be produced with a single extruder, but you must buy raw materials directly or prepare powdered raw materials yourself.