Maximize Output and Quality with Double-Layer Aquafeed Extruder

1. Enhanced Temperature Control: The dual layers allow for better heat distribution, providing precise cooking temperatures that improve feed quality and nutritional retention.
2. Improved Production Efficiency: The design enables continuous and efficient processing, reducing downtime and energy usage by recycling heat between layers.
3. Increased Versatility: A double-layer setup supports a wider range of feed types and textures, allowing operators to produce both floating and sinking feeds with consistent results.
4. Uniform Cooking and Gelatinization: It promotes uniform cooking of ingredients, which ensures even gelatinization and increases digestibility, benefiting aquatic animals' health.
5. Reduced Wear and Tear: The design minimizes stress on internal components, extending the lifespan of parts like screws and dies, resulting in lower maintenance costs over time.

1. Floating Pellets: Designed for surface feeders like some fish species, these pellets float on the water surface for easy access.
2. Sinking Pellets: Ideal for bottom-dwelling species, these pellets sink quickly to reach species like shrimp and other crustaceans.
3. Slow-Sinking Pellets: Suitable for mid-water feeders, these pellets sink at a controlled rate to attract species that feed at various depths.
4. High-Density Feeds: Specially formulated for species requiring nutrient-dense diets, providing a balanced mix of proteins, fats, and carbohydrates.
5. Micro-Pellets and Crumbles: Used for juvenile fish and small species, these feeds are small in size for easy consumption and digestion.

The extrusion process improves feed quality by cooking ingredients at high temperatures and pressure, which gelatinizes starches and denatures proteins, making nutrients more digestible and bioavailable. This process also allows for precise control over pellet size, shape, and density, ensuring consistent quality, reducing waste, and enhancing feed stability in water, which minimizes nutrient loss and improves feed intake for aquatic animals.

Yes, the double-layer aquafeed extruder is suitable for a wide range of aquatic species, including fish, shrimp, crabs, and other marine or freshwater species. It can be adjusted to produce different pellet types—floating, sinking, or slow-sinking—catering to the specific feeding behaviors and nutritional needs of each species.

1. Fish Meal - a high-protein ingredient that provides essential amino acids.
2. Soybean Meal - a plant-based protein source rich in amino acids.
3. Corn and Wheat - carbohydrate sources that also contribute some protein.
4. Rice Bran - an energy source that provides fats and some protein.
5. Animal By-products - such as poultry meal or blood meal, which add protein and minerals.
6. Vegetable Oils - for additional energy and to enhance palatability.
7. Binding Agents - such as wheat gluten or corn starch, to improve pellet integrity.
8. Vitamins and Minerals - to ensure nutritional balance and promote aquatic animal health.

The double-layer aquafeed extruder controls pellet buoyancy by adjusting variables like temperature, pressure, and moisture during the extrusion process. High temperatures and pressures expand the feed ingredients, creating air pockets that allow the pellets to float. By lowering these settings or adding certain ingredients, the density of the pellet can be increased, producing sinking or slow-sinking feed.

Double-layer aquafeed extruders are available in various capacity options to suit different production needs, typically ranging from small-scale units with capacities of around 500 kg/h for research or small farms, medium-scale models around 1000 kg/h for larger farms, and industrial-scale models reaching higher for commercial feed production facilities. Some advanced models even offer customizable capacities, allowing manufacturers to adjust output based on specific requirements.

A double-layer extruder is highly energy-efficient due to its design, which allows for heat recycling between layers. This setup reduces energy consumption by retaining and reusing heat generated in the extrusion process, minimizing the need for additional heating. As a result, it lowers operational costs while maintaining optimal production efficiency and consistency in feed quality.

1. Cleaning: Regularly clean the extruder to prevent residue buildup, which can affect feed quality and lead to blockages.
2. Inspection of Wear Parts: Frequently check high-wear components like dies, screws, and cutters; replace or repair them as needed to maintain extrusion quality and efficiency.
3. Lubrication: Lubricate moving parts such as bearings, gears, and shafts as per the manufacturer's guidelines to reduce friction and prevent overheating.
4. Temperature and Pressure Monitoring: Regularly monitor and calibrate temperature and pressure controls to ensure consistent cooking and pellet quality.
5. Electrical and Hydraulic System Checks: Inspect electrical components, wiring, and hydraulic systems periodically to detect any issues early, ensuring safety and reliable operation.
6. Alignment and Calibration: Check the alignment of rollers and dies, and recalibrate settings if necessary to maintain uniform pellet size and density.
7. Replacement of Gaskets and Seals: Replace any worn or damaged gaskets and seals to prevent leaks that can compromise feed quality and machine performance.