- Zhengzhou City, Henan Province China
- Telephone: 0086-16637162658
⚪Customization&OEM
⚪ Tailored Solutions, Customized Plans.
⚪Install with precision and expertise.
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Product Description:
Floating Fish Feed Extruder is a mechanical fish feed pelletizer for medium and large feed processing plants and aquaculture farms. It is capable of producing high quality pellets suitable for all kinds of aquatic animals (including fish, catfish, crabs, shrimps, cats, dogs, etc.), and the final pellets produced range from 0.5 mm to 12 mm.
Working Principle:
During the extrusion process, the raw materials undergo high-temperature, high-moisture, and high-pressure treatment. At the moment when the feed pellets are extruded from the die holes, the stress sharply decreases. The moisture in the feed changes from liquid to gas, forming extruded fish feed. Fish feed production requires a high degree of gelatinization and water stability. Starch gelatinization can eliminate Salmonella and various harmful bacteria, enhance the pellet's adhesiveness at high temperatures, ensuring a smooth and clean appearance, and preventing erosion by water. Moreover, the use of a floating fish feed extruder can also prolong the feeding time for fish and shrimp, preventing feed pellets from causing water pollution.
Characterization of floating pellet feeds:
1.High protein, low carbohydrate content sets it apart. Livestock feed often falls below 20% protein, while aquaculture feed boasts 30%-40%, with specialties like turtle and eel feed reaching an impressive 65%-70% protein content.
2.Small pellet size tailored for aquatic animals. Due to the shorter digestive tract of aquatic animals, feed particle size should be finer than that of poultry feed, promoting faster digestion and absorption. For instance, when producing eel or shrimp feed, the particle size should be finer, typically ranging from 80 to 120 mesh.
3.The single-screw extruder creates dense feed pellets with high adhesiveness and water resistance. For instance, shrimp feed demands a water stability in pelletized feed lasting up to 2 hours.
4.Easy digestion and absorption. The fish feed extruder can produce sinking aquafeed by eliminating a significant portion of toxins, anti-nutritional factors, and urease inhibitors in the raw materials. This ensures easy digestion and absorption for animals, enhancing the utilization of nutrients. It promotes protein conversion and starch gelatinization, facilitating digestion and absorption for fish and other aquatic species.
The production process of fish feed mill :
The aquafeed production line consists of seven main components: crusher, mixer, pelletizer, cooler, crusher, rotary grading sieve, and packaging. From raw material cleaning to processing and final pellet production, each step is carefully monitored and follows international standards. Our production line is suitable for processing a variety of livestock feeds, including those for pigs, cattle, sheep, chickens, ducks, and fish.
How is fish feed produced?
1.The feed hammer mill is employed for crushing raw materials.
We offer feed crushing machines with varying capacities to meet your diverse requirements. The small hammer mill is suitable for medium-sized feed extrusion plants, while the water drop hammer mill is designed for large to medium-sized aquatic feed factories. The micro-grinder is primarily used for the fine grinding of specialized aquatic feeds.
2.Feed Mixer → Used for Raw Material Blending
The feed mixer is widely employed in the production line of fish feed pellets for blending various grain powders. Mixing is one of the most crucial processes in aquatic feed production plants. The physical properties of feed ingredients are diverse, posing challenges of both mixing and separation. When adding materials to the feed mixer, smaller ingredients such as vitamins, minerals, and premixes of medications should be added later. Our mixer is designed with a U-shaped trough, dual shafts, and extended paddle blades, enhancing the length of the trough for uniform mixing of different materials in the shortest time possible (CV < 5%).
3. Fish Feed Pellet Extruder→For Fish Feed Pellet Extruding
During extrusion, the material undergoes high-temperature, high-moisture, and high-pressure cooking. At the moment of extrusion, the pressure drops suddenly, causing the water in the feed to turn from liquid to gas, resulting in material expansion, forming what is known as expanded feed. This type of feed not only shares the advantages of regular hard pellets, like good taste, prevention of grading, easy transportation, digestion improvement, and waste reduction, but also offers unique benefits. The high starch gelatinization in the feed enhances protein digestibility, improving animal feed utilization. It also exhibits excellent buoyancy, making it easy to observe fish feeding behavior and effectively controlling water pollution. These factors contribute to the widespread use of extruded feed.
4.Pellet Dryer → Drying Fish Feed Pellets
Fish feed pellets, post-extrusion, often contain 15-20% moisture, making them unsuitable for storage and market sale. The pellet dryer reduces moisture to around 10%, allowing for storage for over a year. It's an automatic dryer with advanced feeding and discharging mechanisms, featuring a customizable multi-layer design (3, 5, or 7 layers) and adjustable conveyor belt speed for controlling drying time.
5.Flavoring Machine → Sprays Oil onto Fish Feed Pellets
In fish or aquatic feed production, edible oil and heat-sensitive components are sprayed using a drum-type sprayer. As feed pellets enter the machine, gaseous and liquid materials are sprayed onto them, ensuring full contact between pellets and airborne droplets. The machine, with special nozzles, maximizes liquid atomization for even distribution on the pellet surface.
6.Pellet Cooler → Used for Cooling Fish Feed Pellets
After oil spraying, the fish feed pellets are conveyed to the counter-flow cooler. The pellet cooler in fish feed pellet processing offers advantages such as high automation, low air volume, low power consumption, and a small footprint.
7.Pellet Packaging Machine → Used for Packaging Fish Feed Pellets
This automatic packaging machine is designed for packaging fish feed pellets in bags weighing from 5 to 50kg. It ensures accurate weighing, reliable operation, and has a simple structure. The machine enables fast weighing and packaging of feed pellets.
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Henan zhongzhenxing Machinery Equipment Co.,Ltd. Your dedicated partner in custom feed processing solutions. With a rich legacy spanning over a decade, we specialize in tailoring comprehensive equipment sets to meet the unique production needs of small, medium, and large-scale feed operations.
