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How to Choose Fish Feed Extruder Machine

A thorough understanding of the process, features, and selection criteria is essential in the production of high-quality fish feed. During this workshop, we will explore the fascinating world of fish feed production, focusing particularly on how the dry fish feed is made, the floating fish feed pellet characteristics, and how to select the right fish feed extruder machine. We hope that this article will provide valuable insight and expert guidance to aquaculture enthusiasts, fish farmers, or simply those who are simply curious about the complexities of fish feed manufacturing.


There is a fish feed production line that can produce both floating and sinking fish feed as well as pet food. These products include koi food, goldfish food, catfish food, tropical fish food, cat food, dog food, as well as pet food for monkeys and dogs. There is a steam method used in this production line that is highly efficient, stable, and quiet. 
The products produced by this production line have characteristics such as high protein, complete nutrients, long floating on the water surface, etc., and they may also be supplemented with micronutrients that are well received by farming enterprises because they can promote rapid growth of pets and fish. There is a high degree of automation on the production line, as well as a high output. Manufacturing pet food and aquatic feed with this technology is an ideal choice for manufacturers.

How It's Made Dry Fish Feed

Fish feeds made from dry grains are widely used in the fishing industry and offer several advantages in terms of storage, handling, and nutritional content. A number of steps are involved in the production process, ensuring that a balanced and nutritious fish feed is produced. I would like to explain the detailed process of making dry fish feed in detail.
1. Ingredient Preparation
The preparation of the ingredients is the first step in the manufacture of dry fish feed. The feed consists of a blend of raw materials that are nutrient-rich. The ingredients included in these products are typically fish meal, soybean meal, wheat flour, cornmeal, vitamins, minerals, as well as additives. The ingredients used in this product are carefully selected to ensure they provide the necessary nutrients for the different species of fish and that they meet their specific nutritional requirements.
2. Grinding and Mixing
It is then necessary to grind and mix the ingredients after they have been prepared. When particles are ground, the size of the particles is reduced, which facilitates the creation of a homogenous mixture. A specialized mixer then thoroughly mixes the ingredients, ensuring that the nutrients and additives are evenly distributed.
3. Conditioning and Pelletizing
A crucial step in the preparation of a mixture is conditioning, which involves the addition of steam and water. A process such as this improves the texture of the feed, thereby making it more suitable for pelletization. Once the mixture has been conditioned, it is then fed into extruder machine designed to make fish food.
4. Extrusion and Drying
The fish feed extruder machine is a crucial part of the dry fish feed production process. This device is operated by combining heat with pressure as well as mechanical force. A mixture is passed through an extruder, where it is exposed to high temperatures and pressure, which results in pellets being formed.
A careful drying process is performed after pellets are extruded to remove excess moisture. It is extremely important that this step be carried out in order to increase the shelf life of the feed and prevent the growth of mold or bacteria. A specialized dryer is usually used for the drying process, in which the pellets are subjected to temperature control and airflow control.
5. Packaging and Storage
Packaging and storing dry fish feed are the final steps in the production process. A suitable container is used to package the pellets, ensuring that they are protected from moisture, sunlight, and other external factors. A proper packaging system is essential for preserving feed quality and preventing the degradation of nutrients. After being packaged, dry fish feed is then stored in suitable conditions until it is ready to be distributed and used.

Features of Floating Fish Feed Pellets

The use of floating fish feed pellets is advantageous over the use of other types of fish feed. They are specifically designed to float on the surface of the water, thereby making them easily accessible to fish and minimizing their waste. Let's take a closer look at some of the most important features of floating fish feed pellets.
  • Buoyancy
Fish feed pellets with buoyancy are one of the primary characteristics of floating fish feed. Fish can feed more efficiently on these pellets because they remain afloat for a longer period of time. Fish feeding behavior can also be observed and monitored more easily due to the buoyancy.
  • Nutritional Balance
A floating fish feed pellet is carefully formulated to provide the fish with a balanced diet. The nutritional composition of these products is carefully tailored to meet the specific nutritional requirements of each species of fish, including a precise blend of proteins, carbohydrates, fats, vitamins, and minerals. A balanced composition contributes to healthy growth, improved immunity, and efficient feed conversion.
  • Digestibility
The digestibility of fish feed is an important consideration. There is a high level of digestibility in floating fish feed pellets, which ensures that fish can absorb the nutrients as efficiently as possible. They produce feed by extruding it, which enhances digestion, minimizes waste, and maximizes nutrient utilization.
  • Water Stability
Fish feed pellets that float maintain their integrity and stability in water, which reduces the risk of disintegration and loss of nutrients. This feature is of particular importance in aquaculture systems, where the quality of feed and the cleanliness of water are of paramount importance. The stability of these pellets ensures the consistent delivery of nutrients and minimizes the impact on the environment.

Features of Floating Fish Feed Pellets Machine

  • 1. There is a two-screw extruder at the heart of the operation. It has a high level of automation, a stable performance, good product quality, and a large output in comparison with the single screw extruder.
  • 2. It is possible to extend the transmission life of equipment through the forced lubrication system.
  • 3. A temperature control system that uses automatic temperature control makes temperature control more direct and precise.
  • 4. A self-cleaning feature allows it to be cleaned without having to disassemble it when stopped.
  • 5. Pretreatment of the fodder can reduce the loss of nutrition and enhance the protein proportion of the feed. Animals will be able to digest the food more easily as a result.
  • 6. Raw materials for the processing line include corn flour, wheat flour, soya flakes meal at low temperatures, rice bran, and wheat bran.
  • 7. The production of pet foods, and floating and sinking fish feed pellets is possible. The floating fish feed has a floating time of approximately 20 hours.
  • 8. Fish feed is available in diameters ranging from 0.5mm to 15mm.
  • 9. There is the possibility of shifting between sinking and floating fish feed.
  • 10. A formula will be provided based on the requirements of the customer.

How To Choose Fish Feed Extruder Machine?

The selection of the appropriate fish feed extruder machine is crucial in order to ensure the quality of the feed. When selecting a fish feed machine, you should take into account the following factors.

1. Capacity and Output
A fish feed extruder machine's production capacity is an important consideration when making a purchase. Consider the amount of fish feed you intend to produce per day or hour and choose a machine with an appropriate output capacity. The quantity of fish feed required must be balanced with production efficiency.
2. Extrusion Technology
A variety of fish feed extruder machines employ a variety of extrusion technologies. A single-screw extruder and a twin-screw extruder are the two main types of extruders. Floating fish feed pellets are produced with single-screw extruders, which are cost-effective and suitable for standard applications. Compared to single-screw extruders, twin-screw extruders are more versatile, enabling the production of a wider variety of feed products, including sinking fish feed pellets.
3. Energy Efficiency
A fish feed extruder machine should be considered for its energy efficiency. Select a machine that consumes as little energy as possible while maintaining a high level of productivity. The use of energy-efficient machines not only reduces operating costs but also contributes to the preservation of the environment.
4. Quality and Durability
It is essential to invest in a high-quality fish feed extruder machine if you intend to maintain long-term reliability and performance. Selecting machines constructed of robust materials to ensure that they are capable of withstanding continuous operation. You can identify reputable manufacturers and reliable models by reading customer reviews and seeking recommendations.
5. After-Sales Support
A reliable after-sales support system should be provided by the manufacturer or supplier. The scope of this includes technical assistance, spare parts availability, and maintenance services. The provision of reliable after-sales support will ensure smooth operation and minimize downtime in the event of any issues or maintenance requirements.


How long does it take to produce dry fish feed?
A number of factors affect the production time for dry fish feed, such as the capacity of the extruder machine, the size of the pellets, and the drying process. The process of producing dry fish feed generally takes several hours.
Is floating pellets good for fish? 
In general, floating and sinking pellets provide the same nutritional value, but which one to use depends largely on the type of fish you have. The majority of floating fish feed pellets are used in the care of larger underlings, food fish, and broodfish.
Can fish feed extruder machines produce sinking fish feed pellets?
Fish feed pellets that sink can be produced with certain fish feed extruder machines, including twin-screw extruders. The machines provide flexibility in terms of feed type production, enabling customization to meet the needs of specific fish species.
How do you store dry fish food?
Store homemade dry fish feed in airtight containers, away from moisture, sunlight, and heat. Ensure the containers are labeled with the feed's date of manufacture and use them within a reasonable time to maintain freshness and nutritional value.
What is the standard fish feed formulation?
The standard fish feed formulation varies depending on the species, growth stage, and nutritional requirements. As an example, a common formulation for freshwater fish feed may include approximately 30-40% protein, 10-15% fat, 30-40% carbohydrates, and essential vitamins and minerals. Specific ingredient proportions and composition can be adjusted based on the specific fish species and their nutritional needs.
How long does dry fish feed typically last before it expires?
The best time to feed your fish-dried fish foods such as flakes, pellets, and freeze-dried foods is within six months after opening the container. Your fish food packet can be degraded as soon as it has been opened since oxygen and moisture are drawn into it from the air.


Fishermen and aquaculture enthusiasts should understand how the dry fish feed is manufactured, what floating fish feed pellets are comprised of, and how to select the appropriate fish feed extruder machine. 
Successful fish feed production can be assured by following the recommended production methods and selecting appropriate equipment, which contributes to healthy fish growth, maximum nutrient utilization, and sustainable aquaculture. 
This comprehensive guide will provide you with the knowledge and expertise you need to successfully enter the world of fish feed production.