1.5-2 T/h fish feed Extruder machine
Ideal for medium and large fish feed production, this machine delivers a stable output of 1,500–2,000 kg/h. It ensures uniform discharge and reliable performance. Designed to handle various formulas, it minimizes adjustment downtime, making your production smooth and worry-free.
Based on an 8-hour workday, it is the perfect choice for clients with a daily feed demand of 12,000 kg (12 tons) or more.
Overview of the 1500-2000 kg/h Fish Feed Making Machine
As a medium-to-large scale machine in the aquatic feed industry, the 1500-2000 kg/h fish feed making machine is precisely tailored to meet the critical needs of transitioning to commercial mass aquafeed production.
Instead of simply scaling up a small machine, we have systematically re-engineered the screw assembly, barrel structure, transmission system, and pelletizing unit. This ensures stable pellet quality and reliable performance, even under high-load, continuous operation.
This fish feed mill machine flexibly handles a wide range of common aquatic feed ingredients, including protein sources (fish meal, soybean meal, rapeseed meal, cottonseed meal, peanut meal) and energy sources (corn flour, wheat flour, middlings, rice bran).
It is also compatible with non-conventional raw materials, offering a broad formula window to meet the specific nutritional needs of different species and growth stages.
fish meal
soybean meal
rapeseed meal
peanut
soybean
wheat
corn
rice bran
1500-2000 kg/h Fish Feed Making Machine Specifications
With a capacity of 1500-2000 kg/h, this fish feed machine is a twin screw extruder. It integrates core functions including uniform feeding, efficient conditioning, powerful extrusion, and precise pellet cutting. It completes the entire transformation from raw powder to finished pellets in a single machine.
As the core equipment of the fish feed production line, this machine determines the total output of the entire extrusion line. Its operational stability directly impacts the continuous efficiency of downstream processes, such as drying, coating, and cooling.
Equipment Parameters
- Machine Type: Twin Screw Extruder
- Model: SPHS 120×2
- Brand: RICHI Machinery
- Series: SPHS
- Capacity: 1500-2000 kg/h
- Screw Diameter: 120 mm (φ120)
- Screw Quantity: 2
- Main Motor Power: 90 kW
- Feeder Power: 1.5 kW
- Conditioner Power: 11 kW
Application Scope
- Floating & sinking fish feed, and shrimp/crab feed production
- Special aquatic extruded feed
- Pet food (dog & cat food) and ornamental fish feed production
- Feed processing for high-fiber, high-protein, and high-starch formulas
Key Features:
High capacity output | Twin-screw structure | High cooking quality | Wear-resistant and durable | Variable frequency control | Quick mold change | Safety protection
Application Scenarios:
- For medium-to-large scale aquatic feed processing plants.
- Upgrading existing pellet lines to extruded feed production lines.
- For enterprises pursuing high-end floating or functional feed.
- For producers targeting export or branded operations with strict quality requirements.
Single Screw vs. Twin Screw Fish Feed Extruder Machine
For fish feed production, extruder selection directly impacts capacity, pellet quality, and formula flexibility. Single screw and twin screw technologies each have their own suitable scope. The following table systematically compares these two models across key dimensions, helping you choose the right one based on your production setup and product goals.
| Comparison Item | Single Screw Extruder | Twin Screw Extruder |
| Structure | One screw pushes material forward, simple structure | Two screws rotate together for forced conveying and mixing |
| Raw Material Suitability | Suitable for simple and stable formulations | Suitable for complex formulations and mixed raw materials |
| Mixing Performance | Moderate, depends on raw material uniformity | More thorough and uniform mixing |
| Production Stability | Sensitive to material changes, more fluctuation | High stability, ideal for continuous production |
| Final Product Quality | Meets basic feed requirements | Better gelatinization, more uniform and refined pellets |
| Applications | Standard fish feed, basic pellets | Premium aqua feed, functional feed |
| Investment Cost | Lower | Higher |
| Maintenance | Simple structure, easy to maintain | More complex, requires higher maintenance |
| Recommended Use | Small-scale production / initial investment | Medium to large plants / long-term production |
Other capacity fish feed extruders
The Structure of the Fish Feed Extruder Machine
Essentially, the structure of the fish feed extruder is designed around the continuous process of “conveying → compression → cooking → forming → expansion.” The entire machine features multiple functional modules that work in synergy, ensuring that raw materials are transformed from powder into expanded pellets in a short time.
It is not a single piece of equipment, but a system that highly integrates mechanical energy, thermal energy, and process control. Every structural module directly impacts the final feed quality and production efficiency.
1. Feeding System
Responsible for stably and continuously feeding mixed raw materials into the barrel.
Equipped with a speed control device to adjust feed rate based on output needs, preventing blockages or supply interruptions.
2. Conditioning System
Pre-processes raw materials by adding steam and moisture.
Softens the materials, improves cooking level, lays a solid foundation for subsequent expansion, and enhances final product quality.
3. Twin Screw System
The core component of the equipment, consisting of two intermeshing screws.
During rotation, it conveys, compresses, mixes, and shears the materials to ensure thorough cooking.
4. Barrel
Encases the screws and is usually designed in a segmented structure.
Can be heated or cooled as required by the process, working with the screws to complete processing at different stages.
5. Heating System
Controls the temperature inside the barrel to ensure stable extrusion.
The more precise the temperature control, the better the expansion effect and stability of the final product.
6. Die System
Determines the shape and size of the final pellets.
By replacing the mold, it can produce fish feed pellets of different diameters and types.
7. Cutter
Installed at the outlet of the die head to cut extruded materials into uniform pellets.
Adjustable in cutting length to meet different product requirements.
8. Control System
Centralizes control of the entire machine, including feed speed, screw rotation speed, temperature, and other parameters.
Features simple operation, enabling stable production and easy parameter adjustments.
Features of Feed Produced by Twin Screw Fish Feed Extruder Machine
Twin screw extruders offer superior process control during material mixing, cooking, and forming. As a result, the fish feed produced shows distinct advantages over conventional equipment in the following six aspects:
Uniform Cooking
The twin screw system ensures thorough mixing, making the inside and outside of the pellets equally cooked with no raw core. High starch gelatinization makes the feed easy for fish to digest and absorb, reduces leftover feed, and lowers the burden on water quality.
Consistent Pellet Shape
Stable discharge and precise cutting ensure consistent pellet length and neat edges. The diameter deviation within each batch is small, making the feed highly compatible with automatic feeding equipment.
Strong Water Resistance
The pellets form a dense gelatinized surface layer that holds up in water without breaking or clouding it. Floating feed stays afloat, and sinking feed does not disintegrate, significantly reducing debris during transportation and feeding.
Adjustable Floatability
The same machine can produce both floating and sinking feed. Floating feed expands evenly, suitable for surface-feeding fish; sinking feed has controllable density, ideal for bottom or mid-water feeding fish.
Flexible Formulation
It can stably process complex formulas with high fish meal, high fat, or high fiber content. There are no equipment restrictions when developing functional feed or using unconventional raw materials.
Smooth Surface
The pellets are smooth with minimal debris and good palatability. Fish ingest them with less fine debris in their mouths, reducing feed loss and leftover feed at the farming site.
Types of Feed Produced
Backed by mature and stable extrusion technology and flexible formula adaptability, our feed extruders are capable of producing a wide range of aquatic feed and pet food.
From floating and sinking fish feed in various specifications, to pet food with uniform pellets and excellent palatability, we ensure stable forming and mass production.
Through precise control over expansion, pellet density, and appearance, the final products deliver optimal performance in water stability, palatability, and nutrient utilization.
The Complete Extrusion Process for Fish Feed
The extrusion process for fish feed is far more than simple shaping. It is a systematic engineering process comprising multiple stages: conveying, mixing, conditioning, extrusion, expansion, cutting, drying, and coating.
The process parameters of each stage—including temperature, pressure, moisture, and time—directly impact the final feed quality.
The following section provides a complete breakdown of this process chain, helping you understand how high-quality extruded feed is produced.
1
Raw Material Receiving & Cleaning
Receive various powdered raw materials (fish meal, soybean meal, corn flour, wheat flour, etc.). Use vibrating screens and magnetic separators to remove large impurities and metal foreign objects, protecting the safe operation of downstream equipment.
2
Grinding
Grind raw materials to over 80 mesh (fineness approx. 0.18mm). This ensures complete starch gelatinization and uniform protein denaturation during subsequent conditioning and extrusion. Grinding fineness directly affects the expansion ratio and water stability of the feed pellets.
3
Batching & Mixing
Weigh raw materials according to the formula ratio and feed them into the mixer. This ensures uniform distribution of all components, guaranteeing consistent nutrition in every pellet.
4
Extrusion & Expansion (The Core Process)
Feed the mixed material into the extruder. Under high temperature, high pressure, and high shear, the starch gelatinizes, proteins denature, and the material melts before being extruded from the die.
As the external pressure drops suddenly, moisture instantly vaporizes and expands, forming a porous, fluffy structure. This process simultaneously completes cooking, shaping, and sterilization, making it the critical step that determines the product’s palatability, shape, and quality.
5
Drying
The freshly extruded expanded pellets have high moisture content. They must be passed through a dryer to reduce the moisture to below 10%, making them suitable for storage and transportation.
6
Spraying
Dried pellets enter the coating machine, where heat-sensitive ingredients like oils, vitamins, and probiotics are added. Since these ingredients cannot withstand high temperatures, they must be added after extrusion and drying.
7
Cooling
The coated pellets are still hot and must be cooled to 3-5°C above room temperature using a counter-flow cooler. This also further removes surface moisture. The cooled pellets become crisp and hard, making them less prone to breakage and easier to package and store.
8
Screening & Packaging
Finished products pass through a vibrating screen to remove fine powder and irregular pellets, ensuring uniform particle size.
They are then weighed and sealed by an automatic quantitative packaging scale, ready for warehousing or shipment. The collected fine powder can be recycled back into the production line.
Standard Configuration List for the 1200-2000 kg/h Fish Feed Production Line
The following is the typical equipment configuration list for this capacity range, helping you quickly understand the composition and functional layout of the entire line.
Cylindrical primary cleaning screen
Production: 1-25 tons/hour
Power: 30-160 kW
Removes large impurities like stones, ropes, and debris.
Hammer mill
Grinding fineness：0.5-20mm
Rotational speed ：2980 rpm
Uses high-speed rotating hammers to crush raw materials into the desired particle size.
Paddle mixer
Effective volume ：0.5-4 m3
Mixing amount per batch ：250-2000 kg/P
Thoroughly mixes multiple raw materials and additives according to the formula.
Belt dryer
Pellet Size ：6-8mm
Mesh belt width ：0.8-1.6 m
Uses continuous conveying to evenly dry formed materials, reducing moisture content.
Vacuum spraying machine
Matching production capacity:1- 15 t/h
Batch working time: 6 min
Uniformly sprays oil or functional liquids onto pellet surfaces under vacuum conditions.
Cooler
Drying area：13-58m2
Mesh belt width ：0.8-1.6 m
Uses counter-flow cold air to cool hot pellets.
Screener
Output: 2-50 tons/hour
Screen angle ：19°
Separates qualified pellets from powder, oversized, or undersized particles.
Packaging machine
Package range ：10-50kg/bag ( adjustable )
Packaging speed ：2-8 packs/minute
Automatically weighs, fills, and seals finished feed products.
RICHI’s Completed Aquatic Feed Plant Projects
With years of deep expertise in the R&D and manufacturing of fish feed equipment, RICHI has successfully completed numerous delivery projects worldwide.
From single-machine solutions for small-scale production to large-scale automated factories, we consistently build highly stable and cost-effective production systems for our clients, adhering to the standards of a professional fish feed machinery manufacturer.
Below are some of our project cases that have been commissioned and are operating stably long-term, helping you to more intuitively understand our capabilities and delivery capacity.
DRC Fish Feed Plant
Capacity: 1 t/h
Region: DRC, Africa
Application: Feed production for Tilapia and Catfish.
Pellet Size: 1.5-6 mm fish feed pellets.
Iranian Fish & Shrimp Extruded Feed Production Line
Capacity: 2 t/h
Region: Iran, Asia
Application: Feed production for fish and shrimp.
Pellet Size: 1-8 mm feed pellets. Learn More
Indonesian Shrimp Feed Pellet Production Line
Capacity: 2 t/h
Region: Indonesia, Asia
Application: Feed production for shrimp
Pellet Size: 0.6-8 mm
Malaysia Animal Feed Processing Plant
Capacity: 1-3 t/h
Region: Malaysia, Asia
Application: Feed production for Tilapia, Catfish, Grouper, Shrimp, as well as Chicken and Duck.
Pellet Size: 1-8 mm for fish/shrimp; 2-5 mm for chicken/duck.
Vietnam Aquatic Feed Processing Plant
Capacity: 4 t/h
Region: Vietnam, Asia
Application: Feed production for Tilapia, Catfish, and White Shrimp.
Pellet Size: 0.8-5 mm for fish; 0.8-2 mm for shrimp.
Turkish pet food and floating fish feed production line
Capacity: 1 t/h
Region: Turkey, Asia
Application: Feed production for trout, bass, and snapper; pet food pellets
Pellet Size: 5-8 mm fish feed; 2-6 mm cat, dog food pellets.
FAQ About Fish Feed Machine
If you have any questions about extruders or feed production, you can first take a look at these answers.
1. Can this machine produce both floating and sinking feed? Do we need to change any parts?
+
Yes, absolutely. By adjusting process parameters such as the formula, conditioning temperature, and screw speed, the same machine can switch between floating and sinking pellets. Floating feed requires a higher expansion rate, which is achieved by adjusting the steam input and screw configuration—no major parts need to be replaced. However, for frequent switching, we recommend having different dies (ring molds) to ensure the best forming quality.
2. What is the pellet size range achievable by changing the die?
+
By changing the die with different hole diameters, our fish feed machine can produce pellets ranging from 0.8mm to 14mm.
The 0.8mm to 1.5mm size is suitable for fry and shrimp starter feed; the 1.5mm to 4.0mm size applies to Tilapia and Shrimp; the 4.0mm to 8.0mm size is ideal for adult fish and frogs; and the 8.0mm to 14.0mm size is suitable for cat and dog pet food. One single fish feed machine covers a wide range of applications, from small-scale aquaculture to pet food production.
3. Can this fish feed pellet machine be used alone, or does it require other equipment?
+
The machine can operate independently. You can feed the pre-mixed powder directly into the extruder to produce expanded pellets.
However, if you want to produce shelf-stable finished feed, you need to add drying and cooling equipment. If you are processing from raw ingredients, you will also need a grinder and mixer. We offer complete turnkey solutions, providing all equipment—grinding, mixing, extruding, drying, cooling, and packaging—to help you build a full production line from raw material to finished product.
4. Is professional training required to operate this machine?
+
No. The machine features a variable frequency feeding system and an intuitive control panel. Key parameters (temperature, speed, cutter position) are clearly marked. An ordinary worker can master daily operations like starting, production, and stopping after just 1-2 days of video training. We provide detailed English manuals and operation videos. We also offer online support for overseas customers.
Explore Complete Aquatic Feed Pellet Machine
Begin production at 0.3T/H, starting from just $7,500. Versatile in handling multiple formulations and ingredients, it delivers uninterrupted
manufacturing of aquatic feed, pet food, and animal feed pellets – all with reliable, consistent buoyancy control.
Company Profile
Founded in 1995, RICHI Machinery Co., Ltd. is a manufacturer of feed machinery processing equipment and complete plant engineering, primarily focused on the feed machinery industry. We specialize in animal feed pellet mills, aquatic feed pellet mills, wood chip pellet mills, grain storage systems, and steel structure buildings. The research and development and production of aquatic feed pellet mills are a crucial component of our business.
In the aquaculture field, we offer complete production lines including fish/shrimp/crab feed pellet machines, feed extruders, crushers, mixers, dryers, coating systems, coolers, sieving equipment, and fully automatic packaging systems. We can customize efficient and energy-saving feed production solutions for customers according to the needs of various aquatic animals and pets.
300+
We have helped build hundreds of shrimp/fish feed production lines from scratch.
140+
Our feed pelletizing equipment has been sold to 140+ of the 200+ countries and regions in the world.
1000+
We now offer our related services to so many feed producers worldwide.
International Certification
All our equipment has passed ISO9001:2008, CE, CU-TR and other certifications.
We are a top maker and supplier of machines for shrimp/crab/fish feed and pet food.
For many yearsour shrimp/fish feed equipment have reached the USA, Canada, Russia, Uzbekistan, Ukraine, lran, Indonesia, Romania, Angola, Pakistan, Ethiopia, the UK, etc.
