feed extruder machine
Applicable Animal Types
RICHI animal feed extruder machines are categorized by single or twin screws. Single-screw models are primarily used for small-scale production of fish, shrimp, and pet animal feeds. Twin-screw models are mainly used for large-scale production of feeds for aquatic animals such as fish, shrimp, and crabs, or for producing large-scale feeds for various pets like cats and dogs.
RICHI extruder for feed can produce fish feed, shrimp feed, crab feed, dog feed, cat feed, bird feed, fox feed, rabbit feed, and more.
cat feed
bird feed
fox feed
rabbit feed
feed extruder machine Models
Differences between RICHI feed extruder machine models extend beyond the number of screws used. They also vary in main motor power, feed power, cutting power, and screw diameter.
floating fish feed extruder machine
output (T/H): 0.2-1.0
Main Motor Power (KW): 37-90
Screw Diameter (mm): 90-160
pet food extruder machine
output (T/H): 0.5-12
Main Motor Power (KW): 55-355
Screw Diameter (mm): 75-185
Dry Single-Screw extruder machine
output (T/H): 0.2-1.0
Main Motor Power (KW): 37-90
Screw Diameter (mm): 90-160
Wet-type Single-Screw extruder machine
output (T/H): 0.5-1.0
Main Motor Power (KW): 37-75
Screw Diameter (mm): 90-135
Twin-screw extruder machine
output (T/H): 0.5-12
Main Motor Power (KW): 55-355
Screw Diameter (mm): 75-185
Raw Grain extruder machine
output (T/H): 0.4-1.4
Main Motor Power (KW): 55-132
Screw Diameter (mm): 140-200
Advantages and Features of RICHI feed extrusion machine
RICHI Machinery boasts a high-precision, dedicated R&D team. Over 20 years, we’ve established an independent technology center, enabling seamless progression from conceptual design to prototype development.
RICHI feed extruder machines utilize premium materials and proprietary manufacturing techniques to deliver high-end machinery with broader applications, enhanced operability, and greater customization options.
High Pressure
The rear-wide, front-narrow screw pitch design within RICHI feed extruder machines achieves progressively tighter compression, generating high-pressure conditions within the extrusion chamber.
High Temperature
Powered by steam boiler heating, RICHI feed extruder machines effortlessly reach temperatures between 140°C and 200°C—twice the internal chamber temperature of conventional extruder machines.
Multiple Die Holes
To meet diverse feed production needs, RICHI feed extruder machines offer die holes ranging from 0.2mm to 20mm, easily accommodating your varied extruding requirements.
extruded feed plant projects
Purchasing a feed extruder machine involves numerous decisions, and selecting the right extruder remains a significant challenge for many customers. Reviewing case studies may provide valuable insights.
Small Floating Fish extruded feed plant project in UK
Project Background: A UK aquaculture enterprise required a small floating fish feed production line for ornamental and freshwater fish farming. Specifications included pellet diameter of 1mm-3mm and water flotation exceeding 12 hours.
Solution: RICHI supplied the DGP60-C dry single-screw feed extruder machine as the core equipment, complemented by a complete set of grinding, mixing, drying, cooling, screening, coating, and packaging machinery. PLC automated control system, occupying approximately 200㎡.
- Capacity: 300kg/h
- Pellet Ingredients: Fish meal, soybean meal, corn flour, wheat flour, fish oil, vitamin premix
- Main Unit Model & Power: DGP60-C, Main Motor 15kW
- Installation Period: 15 days (including commissioning)
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Floating Fish extruded feed plant project in iran
Project Background: The Iranian extruded floating fish feed production line mainly produces extruded feed for floating fish and shrimp, while the customer also requested the possibility of producing pet food, poultry feed, chicken feed, cattle feed, and goat feed in the future.
Solution: The original second-floor layout was changed to a horizontal layout, and the single fish feed line was upgraded to a composite production line. It was equipped with a twin-screw feed extruder machine and a ring die pellet mill. Different types of feed share coolers and packaging machines, reducing investment costs.
- Capacity: 1.5-2 t/h
- Pellet Ingredients: Imported fish meal, shrimp shell powder, squid paste, soybean meal, wheat flour, lecithin, compound additives
- Main Unit Model & Power: DSP200-B, main motor 132kW
- Installation Period: 30 days (including training)
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Sinking Fish extruded feed plant project in Uzbekistan
Project Background: To supply local large-scale aquaculture farms, the Uzbekistan client required a 5-ton/hour sinking fish feed production line. Specifications included high pellet density, rapid sinking rate, and water resistance exceeding 20 hours.
Solution: RICHI provided a twin-screw feed extruder machine with fully automated control, including raw material receiving, cleaning, grinding, batching, mixing, conditioning, extrusion, drying, cooling, screening, coating, packaging, and palletizing.
- Capacity: 5t/h
- Pellet Raw Materials: Local corn, soybean meal, rapeseed meal, fish meal, oils, minerals
- Main Unit Model & Power: Custom twin-screw extruder, main motor 200kW
- Installation Period: 45 days (including steel structure plant)
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Aquatic Feed Extrusion Plant Project in Bolivia
Project Background: To expand aquaculture operations, the Bolivian client requires a multi-functional aquafeed line capable of producing both floating and sinking feeds with pellet diameters ranging from 1-6mm to suit various fish species.
Solution:RICHI provided a DGP100 dry feed extruder machine as the core unit, complemented by crushing, mixing, extrusion, drying, cooling, screening, coating, and packaging equipment. The modular design supports future capacity expansion.
- Capacity: 1t/h
- Pellet Ingredients: Corn, soybean meal, fish meal, bone meal, oils, vitamins
- Main Unit Model & Power: DGP100, main motor 37kW
- Installation Period: 20 days (including on-site training)
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Sinking Extruded feed plant project in Thailand
Project Background: A Thai aquaculture farm required production of sinking tilapia feed with pellet diameter of 2-4mm, water stability ≥18 hours, and low-temperature drying to preserve nutrients.
Solution: RICHI supplied a twin-screw feed extruder machine integrated with a low-temperature belt dryer, counterflow cooler, liquid spray coating system, and PLC automatic control supporting multi-formula switching.
- Capacity: 1t/h
- Pellet Ingredients: Local rice by-products, soybean meal, fish meal, oils, enzyme preparations
- Main Unit Model & Power: DSP135-B, Main Motor 75kW
- Installation Period: 25 days (including commissioning and formula optimization)
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Related Videos
The following two videos provide an overview of a twin-screw extruder and a case study of a Russian feed extruder machine.
Twin-screw extruder exterior video
Fish feed extruder machine in Russian
Related Equipments
The production process for various animal feeds is complex and intricate, often requiring more than just a feed extruder machine. RICHI specializes in the production of extruders and related equipment. If you require auxiliary equipment, please refer to the information below for selection.
Hammer Mill
The drop hammer mill is primarily used to grind corn, soybean meal, and other raw materials to an appropriate particle size, ensuring uniform mixing with other ingredients.
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Ultrafine Grinder
The ultra-fine pulverizer is suitable for pulverizing shrimp feed, fish feed, and crab feed into particles ranging from 60 to 300 mesh.
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Mixer
Proportioned and pre-processed raw materials require thorough mixing to ensure high-quality, uniformly granulated finished products in subsequent production.
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Mesh Belt Dryer
The screw conveyor in the production line ensures uniform discharge of materials from the silo. Its minimum output is 8-10 m³/h, with a maximum capacity of 70-80 m³/h.
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Self-Cleaning Bucket Elevator
The bucket elevator primarily transports materials at a 90° angle. Compared to other elevators, it requires less civil engineering and has lower factory height requirements.
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Vacuum Coating System
This system applies surface coatings to high-temperature pellets produced by extruders. The coating permeates through surface pores into the feed interior, enhancing nutritional value.
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Cooling System
The pellets produced by the pelletizer have a temperature of approximately 70°C and are not as hard as they become after cooling. This makes them unsuitable for direct packaging, necessitating cooling and hardening through the cooling system.
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Screening System
RICHI categorizes screening equipment into multiple series for use in different production stages, enabling the screening of materials of varying specifications to provide you with the optimal configuration solution.
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Packaging System
Packages materials into 10-50 kg bags, with sealing options including heat sealing, stitching, or hybrid sealing.
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Complete production process of extruded feed
Before aquatic feed and pet feed ingredients are processed into finished feed products using a feed extruder machine, they undergo seven primary stages: raw material reception and cleaning, grinding, mixing, extruding, drying, coating, and cooling,screening followed by packaging. The following process analysis uses aquatic feed as an example:
Raw Material Receiving and Cleaning
01
Aquatic feed ingredients include fish meal, soybean meal, corn meal, oils, vitamins, minerals, etc. The receiving and cleaning stage primarily removes impurities such as stones, metal, and dust to ensure equipment safety and feed hygiene.
Grinding
02
Aquatic feed demands high precision in particle size. This stage employs hammer mills and ultra-fine grinders to pulverize raw materials into fine powder.
Mixing
03
Ingredient blending ensures the feed is fully enriched with all nutrients required for animal diets. This guarantees uniform distribution of each component, preventing nutritional imbalances caused by inadequate nutrient addition or imprecise formulations.
extruding
04
Aquatic feed demands stringent extruding conditions. First, conditioning enhances material cohesion and achieves sterilization. Subsequently, extruders shape the extruded feed, resulting in lighter particles with superior buoyancy.
Drying
05
Expanded feed contains high moisture levels. A hot-air drying system reduces moisture below 10% to ensure feed stability.
Coating
06
Dried feed undergoes oil coating. The oil penetrates through tiny pores in the feed surface, enriching the final product with nutrients and enhancing palatability.
Cooling and Screening
07
The coated feed is cooled in a cooler to room temperature, preventing mold growth and nutrient loss. It is then screened to remove broken particles that do not meet specifications.
Packaging
08
An automatic weighing and packaging machine seals the feed according to required specifications. Storage requires a dry, well-ventilated, and light-protected environment to prevent mold growth and nutrient degradation.
Frequently Asked Questions
When purchasing feed extruder machines, you may encounter issues across four dimensions: model selection, technical specifications, after-sales support, and cost. The following questions may help address some of your concerns.
1. Which feed extruder machine is suitable for my feed type?
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Floating fish feed, sinking shrimp feed, pet food, and livestock feed each have distinct requirements for equipment structure and conditioning methods. Confirm whether the equipment supports your target feed type.
2. Is dry or wet feed extruder machine more suitable?
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This primarily depends on your specific needs. Dry extrusion suits floating feeds and requires lower investment; wet extrusion is ideal for sinking feeds and delivers higher quality, but necessitates a boiler or steam system.
3. Single-screw or twin-screw feed extruder machine?
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Twin-screw systems are suitable for high formulation complexity, high output, and frequent feed changes; single-screw systems offer lower costs and are suitable for single formulations.
4. What is the pellet diameter range?
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Different animals require varying pellet sizes, e.g., 0.6-1.2mm for fry, 2-4mm for adult fish.
5. Does the main unit power match my grid conditions?
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Confirm factory electrical capacity for feed extruder machines rated at 37kW, 75kW, 132kW.
6. Does it support automatic temperature control and variable frequency speed regulation?
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Precise temperature control and cutter speed regulation directly impact pellet formation quality and stability in water.
7. Does it include post-processing equipment like drying, cooling, or coating systems?
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Floating feed requires drying and cooling, while sinking feed may only need cooling; coating systems enhance palatability.
8. Does it support multiple raw material ratios?
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Yes, but high-fat, high-fiber, or high-fishmeal formulations impose special requirements on feed extruder machine screw structure and heating methods.
9. What is the warranty period? Is spare parts supply timely?
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RICHI extruders carry a 2-year warranty. Lifespan and replacement cycles for wear parts like screws, dies, and cutters must be confirmed in advance. RICHI guarantees lifetime supply.
10. What is the investment budget for a complete fish feed production line?
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RICHI machinery‘s small-scale feed extruder machine lines using dry single-screw extruders typically cost $10,000–40,000 USD. Medium-scale feed extruder machine lines employing wet twin-screw extruders with steam boilers, dryers, coolers, and coating systems generally range from $40,000–90,000 USD. Large-scale feed extruder machine lines feature fully automated high-specification production, typically costing $110,000–210,000 USD.
