Fish Feed Pellet Making Machine
Equipment Applications
Fish feed pellet making machines can be divided into two main categories: ring-die pellet mills and fish feed extruders. The ring-die pellet machine is designed for producing sinking, hard-textured feed pellets for fish, shrimp, and crabs. It produces pellets with diameters ranging from 1 to 12 mm, catering to the needs of various growth stages. In addition to aquatic feed, this machine can also be used to produce feed for poultry and livestock by simply adjusting the formula and pelletizing parameters. If you intend to produce floating feed, we recommend using a floating fish feed extruder machine instead.
floating fish feed
Sinking fish feed
shrimp feed
crab feed
fish Fry Feed
Core Advantages
RICHI fish feed pellet mill features deep cooking and precise temperature control to solve low pellet water stability, poor digestibility and high energy use. It runs continuously with low maintenance and links smoothly with grinding, mixing and cooling equipment for a complete line.
Deep Gelatinization
Our fish feed pellet machine features a three-layer steam conditioner, which ensures thorough starch gelatinization and the elimination of pathogens, thereby enhancing both the digestibility and safety of the feed.
High stability in water
Effective conditioning ensures that the pellets remain stable in water for over 10 hours. The resulting pellets feature a denser structure, a smooth surface, and uniform particle size.
Stable Operation
RICHI fish feed pelletizer utilizes a high-efficiency gear drive system, which offers superior performance and lower energy consumption—delivering a 20% higher output compared to belt-driven models. Equipped with Siemens motors and SKF bearings, the machine operates with greater stability and reduced noise levels.
Seamless Integration within the Production Line
The fish food pellet machine is designed to work in synergy with processes such as ultra-fine grinding, mixing, drying, and cooling. For large-scale aquafeed plants, an integrated production line configuration facilitates better control over key parameters, including moisture content, temperature, particle size, and water stability.
Technical Parameters
The table below shows the specifications for our ring-die fish feed pellet making machine. If you require a pellet machine with a lower production capacity, we can also provide a flat-die model.
ring-die fish feed pellet Machine Series
| Model | SZLH250 | SZLH320 | SZLH350 | SZLH420 | SZLH508 | SZLH558 | SZLH678 | SZLH768 |
|---|---|---|---|---|---|---|---|---|
| Capacity(T/H) | 1.0-1.5 | 3-4 | 5-6 | 10-12 | 15-16 | 20-22 | 30-33 | 38-40 |
| Main Motor Power(kW) | 22 | 37 | 55 | 110 | 160 | 185 | 250 | 315 |
| Feeder Power(kW) | 1.1 | 1.5 | 1.5 | 1.5 | 1.5 | 1.5 | 1.5 | 2.2 |
| Conditioner Power(kW) | 1.5 | 4 | 4 | 7.5 | 7.5 | 11 | 11 | 11 |
| Ring Die Diameter(mm) | 250 | 320 | 350 | 420 | 508 | 558 | 673 | 762 |
| Pellet Diameter(mm) | 1~12 | |||||||
Fish Feed Extruder Machine Series
Fish feed pellet mills are primarily used for producing sinking feed. If you need to produce floating feed, we recommend a fish feed extruder, which is capable of producing floating, sinking, and slow-sinking feeds.
Our Projects Across the Globe
Uzbekistan 4-5 т/H Fish Food Pellet Making Machine
This client intends to invest in a commercial feed mill and is seeking equipment capable of producing feed for fish, shrimp, and poultry.
To meet this requirement, we recommended a ring-die feed pellet mill. By adjusting the conditioning temperature and the aperture of the ring die, the machine can produce various types of pelleted feed. But this machine cannot produce floating feed pellets.
Iraq 6-8 т/H Fish Pellet Making Macine
This Iranian client requires the processing of various types of feed pellets, including sinking fish feed, floating fish feed, shrimp feed, and chicken feed.
To meet these diverse production needs, we have configured a system for them that includes a fish feed pelletizer equipped with a three-layer conditioner (capacity: 5-6 T/H), as well as a wet-type extruder. The extruder is used to produce floating fish feed, with an hourly capacity of 2.5 tons.
Indonesia 2 т/H Shrimp & Fish Food Pellet Maker
The client produces sinking fish and shrimp feed, which requires high standards for pellet water resistance.
The proposed solution features a pellet maker equipped with a three-stage conditioner to ensure thorough starch gelatinization, paired with a ring die having a 1:20 compression ratio to produce dense, stable pellets that hold up well in water.
Additionally, the raw materials are ground to a fineness of 80–120 mesh or finer, which enhances the digestibility of the feed.
Russia 1.5 т/H Floating Fish Feed Pellet Machine
The client required the production of high-end floating fish feed, a need that standard fish pellet machines could not meet. Consequently, we provided the client with a wet-type fish feed extruder.
The pellets produced by this extruder contain internal pores, resulting in a density lower than that of water, which allows them to remain afloat on the water’s surface for an extended period.
Furthermore, by simply adjusting the process parameters, the extruder can also be used to produce sinking fish feed.
fish feed Production process
Producing high-end commercial fish feed pellets requires more than just a single feed pellet mill; it necessitates a coordinated process involving grinding, mixing, drying, coating, cooling, screening, and packaging.
01
Utrafine Grinding
Accurately weigh raw materials and grind them to a fineness of 60–80 mesh or higher. A finer grind ensures more uniform water absorption and heat distribution during conditioning, leads to more complete starch gelatinization, and results in denser pellets.
02
Mixing
Mix thoroughly all ingredients to ensure a balanced nutrition in every single feed pellet.
03
Pelletizing
Thoroughly condition the material to induce starch gelatinization and protein denaturation, thereby improving pellet formation quality, digestibility, and water resistance. Maintain a ring-die compression ratio of 1:14 to 1:16 to ensure a compact pellet structure.
04
Drying
Feed the freshly extruded pellets into the belt dryer immediately to reduce their high moisture (approx. 20% – 25%) and temperature down to a safe storage level of 10% – 12%.
05
Coating
Coat the dried pellets with oil or liquid while they are in a microporous state to achieve optimal absorption.
06
Cooling & Screening
Cool the fish feed pellets to ambient temperature to increase hardness and prevent condensation during storage. Then screen them to remove fines and ovesize pellets.
07
Packing
Weighing and packaging the compliant fish feed pellets for transportation or sale.
Other Fish Feed Production Machine
Fish feed pellet making machines are merely the primary production equipment for the pelletizing stage. The overall fish feed production process also requires auxiliary equipment, such as batching systems, grinders, mixers, belt dryers, coaters, coolers, screeners, and packaging machines.
Pre-cleaning Machine
Filters out impurities from powder to maintain clean, consistent feed processing.
Equipment Type：permanent magnet drum, suspended iron separator, cylindrical pre-cleaning screen
Fish Feed Grinder Machine
Grinds raw materials like corn, soybean meal, and rice bran to a fineness of 60–200 mesh, , facilitating seamless mixing and pelletizing.
Equipment Type：ultra-fine grinder, feed hammer mill
Fish Feed Mixer Machine
Blends all ingredients evenly into a uniform mixture for consistent nutrition in every feed pellet.
Equipment Type：paddle mixer, ribbon mixer
Fish Feed Dryer Machine
Dries pellets after pelleting to boost durability, stability, and shelf life.
Equipment Type：belt dryer machine
Liquid Coating Machine
Coats pellets with fats, vitamins, and enzymes to boost nutrition and palatability.
Equipment Type：simple spraying machine, vacuum spraying machine
Quickly reduces pellet temperature and enhances durability, ensuring resistance to mold and breakage during storage and transport.
Equipment Type：flap-type counterflow cooler, impeller-type counterflow cooler
Pellet Screening Machine
Separates pellets from fines and overs, ensuring uniform product quality.
Equipment Type：vibrating screening machine, high-efficiency screen, rotary grading screen
Weighs and packages finished pellets accurately for efficient storage, transport, and sale.
Equipment Type：stainless steel bagging scale, heat sealer, and bag sewing machine
Frequently Asked Questions
Should you choose a pellet machine or an extruder for producing fish feed?
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If you are producing only sinking fish feed or feed for shrimp and crabs, a ring-die pellet mill is typically the right choice. If you are producing floating fish feed, an extruder is generally used.
How much does a small fish feed pellet machine cost?
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For a small fish feed pellet machine with an hourly capacity of 1- 2 tons, the price typically ranges from $7,000 to $15,000, depending on the configuration. If you require a lower production capacity—for example, 200–500 kg/h—you might consider a dry-type fish feed extruder.
How long do fish feed pellets remain stable in water?
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Our fish pellet maker utilizes advanced hydrothermal conditioning technology, ensuring that the pellets do not disintegrate in water for over 10 hours. However, the choice of raw materials and the fineness to which they are ground can also influence the water stability of the pellets. We can provide you with a comprehensive solution to ensure high-quality pellets in every respect.
What pellet sizes can your fish feed pelletizer produce?
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It can produce standard fish feed pellet sizes (ranging from 1–8 mm). If you need to produce feed for fry, shrimp, or crabs, we can provide custom dies with smaller hole diameters. By swapping out the ring die, you can adjust the pellet diameter to meet the specific requirements of different growth stages and aquatic species.
What are the requirements for the raw materials?
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Raw materials must be ground to a fineness of 60–80 mesh or finer. Factors such as starch content, the ratio of protein-based ingredients, and the amount of added oil also influence pellet formation and water resistance. If the formulation is not well-designed, even the best pellet mill will struggle to consistently produce high-quality pellets.
Is purchasing just a pellet mill sufficient, or are other auxiliary pieces of equipment required?
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If you are new to fish feed production, it is recommended that you acquire a complete fish feed production line. A full line typically also requires a grinder, mixer, dryer, coating machine, pellet cooler, pellet grading screen, and packaging equipment.
What is the service life of wear parts like ring dies and rollers?
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The service life of these wear parts depends on factors such as the hardness of the raw materials, the sand content in the formula, moisture content, and the duration of continuous operation. Our ring dies and rollers are manufactured from 304 stainless steel and undergo carburizing and quenching heat treatments, which significantly enhance their wear resistance.
What is the warranty period for the equipment? Is on-site installation available?
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We provide a one-year warranty. During the warranty period, we offer free on-site repairs for any malfunctions not caused by human error. Furthermore, we provide comprehensive technical services—including project consultation, process design, equipment manufacturing, installation guidance, commissioning, operator training, spare parts supply, and after-sales support—to ensure the long-term, stable operation of the equipment. (view our YouTube)
