0.3-0.4 t/h fish feed machine for sale
With a stable output of 0.3-0.4 t/h, this equipment offers the perfect mix of performance and economy. It supports the production of fish, shrimp, and pet food pellets.
Featuring simple operation and reasonable energy consumption, it is perfect for startups and new farmers (Daily feed consumption ≥ 1600kg).
Overview of 0.3-0.4T/H Fish Feed Machine
This machine is an equipment specifically designed for small to medium-sized aquaculture farms and small-scale feed processing. With a capacity of 0.3 to 0.4 tons per hour (300-400 kg/h), it represents the typical output for small floating fish feed. Featuring a single screw extruder as its core, it is the ideal choice for producing floating feed in small production lines.
As the core pelleting unit of a complete fish feed line, this machine can operate independently. It can also be easily integrated with upstream and downstream equipment—such as grinding, mixing, drying, and cooling systems—to form a fully matched small-scale production line that ensures stable and reliable output.
Core Specifications
- Capacity: 300-400 kg per hour (0.3-0.4 t/h)
- Power: 37 kW
- Machine Dimensions (mm): 2100 × 1450 × 1350
- Equipment Type: Single screw Extruder
- Applicable Raw Materials: Fish meal, soybean meal, corn, bran, rice bran, etc.
- Product Form: Floating, sinking pellets
- Pellet Size: 0.6-8mm. Adjustable by changing the die to meet different specifications
- Power Supply: 3-phase industrial power (relying solely on solar power is not enough)
- Installation: Compact footprint, no complex civil construction required
Compact in structure and easy to operate, it is suitable for producing feed for a variety of species, including grass carp, carp, tilapia, shrimp, and frogs.
Fish feed making machine structure
Unlike the complex designs of large industrial twin screw extruders that chase maximum capacity, this single screw model embraces a compact and precise philosophy. It integrates all essential pelleting functions, ensuring stable output while significantly lowering the barrier to operation and reducing maintenance costs.
The entire machine is built around the complete process of transforming powder into expanded pellets. It features six optimized functional modules, each specifically engineered to solve the real pain points of small-scale production.
01
Pelleting Die System
• Precision Machining: Uniform die holes ensure consistent pellet quality.
• Optimized Compression Ratio: Improves forming rate and reduces fines/dust.
• Versatile Formulas: Suitable for various raw materials (corn, soybean meal, fish meal, etc.).
• High Wear Resistance: Extended service life.
Value: More uniform pellets, lower waste, and stable operation
02
Cutting System
• Adjustable Position: Flexibly controls the length of the pellets.
• Clean Cutting: Ensures a smooth finish, reducing burrs and breakage.
• Multi-Species Adaptable: Suitable for fish feed, shrimp feed, and other specifications.
Value: One machine fits multiple product specifications.
03
Conditioner
• Steam Conditioning: Increases the gelatinization of raw materials.
• Enhanced Bonding: Improves pellet binding and water stability.
• Better Absorption: Increases the nutritional absorption rate.
Value: More stable pellets, better palatability, and superior farming results.
04
Variable Frequency Feeding System
• Variable Speed Control: Ensures uniform and continuous feeding.
• Prevents Blockages: Avoids material jams and idle running.
• Flexible Adjustment: Can be adjusted based on formulas and capacity.
Value: Improves equipment stability and reduces failure rates.
05
Safety System
• Overload Protection: Prevents equipment damage.
• Emergency Stop: Enhances operational safety.
• Protection Design: Guards key components.
Value: Reduces downtime risks and guarantees continuous production.
06
Casting Manufacturing
• Single Screw Structure: Stable and reliable.
• High-Temperature & Pressure: Improves starch gelatinization.
• Versatile Output: Produces floating or sinking feed (via process adjustment).
• Improved Digestibility: Enhances feed digestibility and water stability.
Value: Directly determines the quality of the feed and breeding results.
Applications of 300-400 KG/H Fish Feed Machine
For growing aquaculture and feed ventures, success lies in striking the right balance between capacity, capital, and agility—not simply in size. This 0.3-0.4 T/H fish feed pellet machine is engineered as the ideal solution for the following profiles:
Small & Medium-Sized Aquaculture Farms
When your daily feed demand is ≥2 ton, producing feed on-site significantly cuts costs compared to long-term outsourcing. This machine’s capacity matches your actual consumption perfectly. It avoids overproduction while ensuring a steady supply, making it the ideal starting point for feed self-sufficiency.
Start-up Feed Processing Projects
For investors entering the feed processing industry, controlling initial costs is crucial. Compared to large production lines, this machine has a lower investment threshold and requires less space, while offering stable production capacity. It helps you enter the market in a manageable and cost-effective way.
Aquaculture Enterprises Expanding Product Lines
More than just fish feed, this machine can flexibly process shrimp feed, frog feed, and even basic pet food pellets by adjusting formulas and processes. This “one machine, multiple uses” capability helps you broaden profit channels and maximize equipment utilization.
Small Scale Commercial Manufacturers
If you plan to transition from producing feed for “internal use” to “selling externally,” this machine is perfect for you. Its stable output and consistent pellet quality help you establish basic product standards and successfully enter the local market.
Users Seeking Simple Operation & Maintenance
With a compact structure and user-friendly logic, this machine is easy to operate without complex training. Routine maintenance is simple, making it ideal for farms or start-up teams with limited technical staff.
Feed Types This Machine Can Produce
No need to buy multiple machines for different products. This 0.3-0.4 t/h fish feed machine does it all.
It easily switches between standard aqua feeds (like Grass Carp and Tilapia), specialized shrimp and crayfish feed, and even basic pet food pellets. One single feed machine investment opens doors to multiple markets, maximizing your return.
Fish Feed
| Suitable fish species | Recommended pellet size | Feed form |
| Grass carp, common carp, crucian carp | 2.0–5.0mm | Floating/Sinking |
| Tilapia | 1.5–4.0mm | Mainly floating |
| Catfish, basa fish | 3.0–6.0mm | Mainly sinking |
| California bass, grouper | 2.0–5.0mm | Floating |
| Rainbow trout, salmon | 3.0–8.0mm | Sinking |
Shrimp Feed
| Suitable varieties | Recommended pellet sizes | Characteristics |
| South American white shrimp, tiger prawn | 0.8 – 2.0mm | Water stability ≥ 2 hours |
| Crab Rang | 2.0 – 4.0mm | Sinking particles, good palatability |
| Roche’s freshwater prawn | 1.0 – 3.0mm | High uniformity, reduces waste |
Pet Food
| Suitable varieties | Recommended particle size | Applicable stages |
| Puppy food | 5.0–10.0mm | Puppies after weaning |
| Adult dog food | 8.0–14.0mm | Adult dogs |
| Kitten food | 3.0–6.0mm | Kittens after weaning |
| Adult cat food | 6.0–10.0mm | Adult cats |
Other Expandable Categories
• Frog Feed: High-protein floating pellets for bullfrogs and tiger frogs.
• Turtle Feed: Nutrient-dense sinking pellets.
• Loach & Swamp Eel Feed: Small-sized sinking pellets.
• Ornamental Fish Feed: Colorful floating pellets (can be customized with natural pigments).
• Aquatic Starter Feed: Micro-pellets (0.5–1.0mm) for fish and shrimp fry.
Build a Small-Scale Fish Feed Production Line with This Machine
The extruder is the core, but it is not the whole story. To produce high-quality finished fish feed, you need to coordinate feeding, mixing, drying, and cooling.
Our equipment serves as the core pelleting machine, allowing you to flexibly integrate upstream and downstream equipment to build a complete, small-scale fish feed production line quickly.
01
Grinding System (Raw Material Processing)
The first step of the production line. This system grinds grains and blocks like corn, soybean meal, and bran into the appropriate fineness.
Grinding fineness directly impacts mixing uniformity and extrusion quality. Proper fineness ensures uniform powder for the extruder, guaranteeing pellet quality from the very beginning.
02
Mixing System (Uniform Formula)
Ensures consistent nutrition in every batch. This system fully mixes various raw materials according to the formula, ensuring the nutrients are evenly distributed.
During mixing, you can also add oils, vitamins, trace elements, or probiotics. A liquid addition device ensures these ingredients are evenly sprayed onto the mash.
03
Extrusion System
The heart of the production line—this is where our machine is installed.
The mixed powder first enters the conditioner, where steam or hot water is added to soften the material and pre-gelatinize the starch. It then moves to the single-screw extruder, where high temperature and pressure cook, shear, and knead the material. Finally, it is forced through the die. As the pressure is instantly released, the pellet expands. The cutting system precisely controls the pellet length.
04
Drying System (Moisture Removal)
Prevents mold and ensures storage. Fresh pellets coming out of the extruder have high moisture content. Without immediate drying, they will mold and spoil. The drying system reduces the moisture to a safe level.
For small lines, a multi-layer belt dryer is commonly used. The temperature and drying time can be adjusted based on pellet size and formula.
05
Cooling System (Stabilizing the Pellets)
Prevents moisture return and improves hardness. If hot pellets are packaged immediately, the heat will condense inside the bag, causing the pellets to absorb moisture and mold.
Cooling reduces the pellet temperature to within 5°C of the ambient temperature. This stabilizes the moisture content, increases hardness, and prevents breakage during packaging, transport, and storage.
06
Packaging System
The final step from raw material to saleable product. The packaging system weighs, bags, and seals the cooled feed according to specifications.
For small-scale lines, a semi-automatic packaging solution is ideal. It includes an electronic weigher and a sewing machine or heat sealer. It takes up little space and is easy to operate. Once packaged, the feed is ready for the warehouse or direct shipment to customers.
Key Equipment for a Small Fish Feed Production Line
Once the overall production line structure is clear, the next step is to understand the specific role of each key machine.
A stable small-scale fish feed production line relies on the seamless cooperation of multiple functional modules. From raw material processing to the final output, every stage directly impacts pellet quality and production efficiency.
Below, we explain the core components of the small-scale fish feed line from an equipment perspective. This will help you clearly understand the system and choose the right equipment combination based on your raw materials and capacity needs.
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.
Fully automatic packaging machine
Package range ：10-50kg/bag ( adjustable )
Packaging speed ：2-8 packs/minute
Automatically weighs, fills, and seals finished feed products.
RICHI Completed 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.
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.
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.
Nigeria Fish Feed Processing Plant
Capacity: 2 t/h
Region: Nigeria, Africa
Application: Feed production for Tilapia and Catfish.
Pellet Size: 0.5-8 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.
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.
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?
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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?
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By changing the die with different hole diameters, our fish feed machine can produce pellets ranging from 0.6mm to 12mm.
The 0.6mm 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 12.0mm 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?
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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?
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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.
