Floating fish feed pellet extruder technology

Author : Horne Ottesen | Published On : 10 Apr 2026

In the production of extruded feed, the primary equipment is a screw fish feed pellet extruder. The product is fed right into the fish feed pellet extruder, and also the screw screw presses the product to create an axial flow.

At the same time, as a result of the mechanical rubbing in between the screw and the material, the product and also the barrel, as well as the product inside the product, the material is strongly squeezed, stirred, and sheared, and also consequently, the product is further fine-tuned as well as co-opted.

As the stress progressively raises, the temperature level enhances appropriately. When the paste product is ejected from the die hole, under the action of a strong stress distinction, the product is puffed by floating fish feed making machine, dehydrated as well as cooled. The puffed item hangs, permeable, crisp, and has good palatability and also taste.

The fish feed pellet extruder puffing technology breaks through the conventional processing modern technology, makes the physical homes of the feed adjustment qualitatively, substantially promotes the advancement of the feed processing sector as well as the breeding sector, and is a significant development in the feed sector.

The fish feed pellet extruder puffing process is a process that integrates various operations such as mixing, working, shearing, home heating, as well as air conditioning. The following is a particular evaluation from the facets of thickness control, automated control and power saving as well as usage reduction.

1. Thickness control innovation

In the extrusion process of fish feed pellet extruder, there are lots of variables that influence the thickness of feed, such as refining technology, fish feed pellet extruder equipment, processing criteria, process control, feed resources, formula and more.

It is possible to control the item thickness by transforming the raw product or formula, yet it has little application worth; by altering the screw setup, the density control of the extruded feed item can be realized, but the procedure is inconvenient. Density control can likewise be achieved by readjusting the operating criteria.

Furthermore, in the fish feed pellet extruder handling of marine feed, in order to meet the feeding requirements of water pets, the ups and also downs of aquatic feed need to be managed, and also the ups and also downs of feed are closely pertaining to thickness, so thickness control is applied in the production of marine extruded feed.

Technology is particularly vital. Currently, regulating the thickness of extruded items is mostly attained by regulating the stress as well as temperature level. The major techniques are as adheres to:

( 1 )Open a stress alleviation opening on the extruding cavity, and also plug the stress alleviation hole when generating floating feed, so as to satisfy the needs of heat and high pressure for processing floating feed.

Open up the stress alleviation hole when feeding, so that when the material gets to the stress relief opening, the stress in the sleeve is partly launched, and also at the same time, some water vapor is also released from the pressure alleviation hole.


These products are extruded by fish feed pellet extruder to the end of the extruding cavity and after that compacted to get a heavy feed with high bulk density. This stress relief opening can also be used to evacuate, so that the material loses part of the water vapor during the forced motion.

This fish feed pellet extruder process technique realizes the control of the density of the extruded product by regulating the pressure in the extruding cavity, and also the outcome will not be affected due to the fact that the feeding quantity does not need to be lowered.

( 2) A stress controling gadget is added in the floating fish feed extruder machine (pressurization before the die). The stress regulation of the fish feed pellet extruder is to mount a shut-off shutoff between the extrusion cavity and the discharge template to change the stress distinction in between the extrusion cavity and also the outside of the extrusion dental caries.

( 2 )Stress cutting innovation (post-mold pressure). A brand-new type of thickness control system was developed for aquafeed. This thickness control system of fish feed pellet extruder takes on pressurized reducing innovation to maintain a specific positive pressure in the cutting chamber.

When the material gets in the cutting chamber from the puffing chamber, since the boiling point of water increases with the pressure, the flash evaporation can be lowered to regulate the level of expansion of the product, as well as the starch molecules are quickly solidified in the cutting chamber, and the product no more enters the regular pressure from the cutting chamber.

The positive stress of the reducing chamber can be realized by inputting compressed air with an air pump, and the follower can be turned off when discharging.

This fish feed pellet extruder process method avoids regulating various other variables that influence the degree of development, therefore minimizing the need for hand-operated procedure, and at the same time, the controllability is stronger than other approaches.

Presently, this brand-new fish feed pellet extruder modern technology has actually not been applied in China, however this modern technology transcends to the exhaust technique in regards to thickness control of extruded products and also procedure and also usage, and also is a new instructions for the advancement of extruded technology.

( 4) Controlling the opening rate of the layout. By altering the opening rate of the discharge design template, the pressure difference prior to and after the layout can be transformed, so as to attain the objective of managing the density of the item. The hole is obstructed.

2. Automatic control of fish feed extrusion process

The automatic control of the fish feed pellet extruder extrusion process describes the rapid and also accurate control of the process criteria by outfitting the extrusion equipment with a computer-aided control system.

The application of automatic control modern technology in the fish feed pellet extruder puffing process can not only boost work efficiency, but additionally improve item quality security. Designs of automated control in the house and also abroad

There are research studies on all sides. The automated control innovation of the fish feed pellet extruder puffing process has made great progress, and also a visualization control system of the puffing process has actually been created. The extruding system of fish feed pellet extruder based upon solution industrial arrangement software recognizes the visual control of the extruding process

The sensor can be utilized to perform on-site discovery as well as responses on the operating parameters of the fish feed pellet extruder, instantly change the appropriate functioning specifications of the floating fish feed pellet machine, and realize numerous pre-programmed by the driver.

Functioning parameters, with formula storage space, report printing, alarm, vibrant display screen and also recording of functioning specifications. International computer automatic control modern technology has actually already been used in the field of feed processing

In the entire fish feed pellet extruder process, it has been established from a solitary computer control system to an innovative automatic control system, which can present color images in the central control room, computer program control and also interaction network for floating fish feed making machine operation, it can finish all manufacturing procedures without unmanned operation.

As a whole, the automatic control of puffing in feed processing abroad has actually been establishing towards the direction of integrating with product quality.

While the introduction of computers in my country is primarily to address the trouble of production automation, only concentrating on the tracking of equipment procedure in the manufacturing process as well as the control of stand-alone equipment. It has actually not played its due duty in boosting item top quality as well as various other aspects.

3. Power saving in extrusion process.

The trouble of power saving and also consumption reduction is the research study focus in the fish feed pellet extruder extrusion process.

At present, it is generally through the research of low power usage processing innovation and also the influence of main process criteria on energy usage, and the establishment of equivalent mathematical versions to achieve the purpose of energy conserving and intake decrease.


In order to decrease the power usage in the fish feed pellet extruder puffing process, some residential feed manufacturers mostly take measures from the process. For example, in the manufacturing process of nursing pig feed, the corn resources used is not complete puffed product, but part of the puffed product as well as part of the conventional material.

In the later fish feed pellet extruder granulation process, processes such as expansion as well as low temperature granulation are used to guarantee that the power consumption each item is reduced.

From the above evaluation, it can be seen that it is still a traffic jam problem exactly how the process parameter research study in the fish feed pellet extruder puffing process can be symbolized in decreasing power consumption as well as can be recognized in actual manufacturing.

4. Application of extrusion in floating fish feed processing.

In recent times, the application of fish feed pellet extruder extrusion innovation to feed production is an epoch-making jump in feed manufacturing modern technology. The main benefits of extruded granulation:

( 1 )The processing temperature level is high and the moisture content is huge, and also the material can be completely grown and broken down. The pellets are of high quality as well as the feed titer is high;
( 2 )The adjustable variety of pellet density is large, which can adjust to the demands of various feeding items and different feeding atmospheres.

( 1) Puffed suckling pig feed

The important indicators of nursing pig feed are hygiene and also maturation to stop suckling pigs from diarrhea. The raw products are treated with heat and high pressure, on the one hand, it eliminates pathogenic microorganisms, on the other hand, the starch product is completely cooked, as well as the soybean healthy protein is denatured as well as cleansed, so that the material is very easy to digest and also absorb. Gelatinized starch can promote the production of lactic acid in pets and enhance the anti-bacterial capability of pets.

( 2) Extruded marine feed
The water feedl is extruded as well as granulated by fish feed pellet extruder, which enhances the quality of the item from all aspects.

① Enhanced feed titer. Extrusion ripens the starch, which is very important for fish as raw starch is difficult to absorb. The starch is prepared, the cohesiveness of the material is improved, as well as the creating result is good. On the facility of making sure the top quality of pellets, the formula can be adjusted to decrease expenses.

② The floating time of pellets in water is controlled by the density of pellets, and the density is identified by the level of puffing by fish feed pellet extruder.

As a result, by readjusting the formula, readjusting the range and material of starch and binder, and changing the process parameters, that is, readjusting the wetness, stress, temperature, etc, extruded pellets with different densities can be generated.

( 3) Puffed chicken feed

The formula of chicken feed has high starch material and 15% -20% healthy protein material at the same time. For this proportion, no matter the completely dry floating pellet machine or the damp floating pellet machine, the technical efficiency is better.

Experiments have actually shown that puffing can improve the food digestion as well as absorption rate of feed for poultries. Extruded chicken feed, as a result of its little mass thickness, can minimize chicken feed consumption, stay clear of weight problems, as well as enhance egg manufacturing.

( 4) Puffed livestock feed (urea puffed corn).

Ruminants such as cattle and also lamb can convert non-protein nitrogen (such as urea) into pet healthy protein. The secret to adding urea to feed is just how to regulate the addition quantity, consistent feed consumption and also urea decay price. Urea-expanded corn fixes these troubles most efficiently.

The urea, corn flour as well as additives are mixed in a specific percentage and after that go into the floating pellet machine, the corn flour is broadened, as well as the gelatinized starch and also urea create a covering framework. Urease inhibitors hinder the activity of urease. It inhibits the launch price of ammonia after urea decomposition from two facets, as well as avoids ammonia poisoning caused by excess ammonia.

( 5) Rice bran preservation therapy.

Fresh rice bran has very active lipolytic enzymes, which can rapidly decompose the oil had in rice bran right into free lipids.

Fat as well as rancidity, so the storage space performance of fresh rice bran is extremely inadequate. The rancid and also spoiled rice bran not just minimizes the oil return, but likewise impacts the growth and also growth of livestock and chicken if fed as feed.

For that reason, fresh rice bran should be maintained fresh in time. Extrusion, high temperature, high pressure and high shear can inactivate lipase as well as prevent rancidity as well as damage. Extrusion has ended up being a new pretreatment process in rice bran oil manufacturing.

( 6) Detoxification of oilseed meal protein.

In pellet mill in Rwanda to soybean cake (meal), the cake (dish) gotten from rapeseed, cottonseed, sunflower seed, castor as well as other oilseeds additionally consists of a specific quantity of healthy protein, which is a superb resource of feed protein. Nevertheless, different oil cakes (consisting of soybean dish) can not be straight utilized to create feed, because they all include a particular quantity of anti-nutritional variables or various other damaging components.

Oil cake (meal) need to be cleansed prior to it can be made use of. Detoxing techniques consist of chemical and physical techniques. Oilseed cake (meal) extrusion detoxing is a modern-day innovation related to oil cake (meal) therapy by extrusion innovation.

( 7) Plume puffing processing.

Due to the existence of disulfide bonds and also hydrogen bonds between plume polypeptide chains, the framework of feather healthy protein is particularly secure, as well as animal gastrointestinal enzymes are generally incapable to digest and also decay, so the plume extrusion technology has actually been established.

After the plume is extruded and puffed, its disulfide bond is damaged, the molecular framework is ruined, and also the gastrointestinal enzyme is simple to absorb and disintegrate, and the digestibility is improved. The digestibility is associated with the degree of destruction and extrusion temperature.

When the floating pellet machine extrusion temperature is high, the digestibility of the puffed plume product increases, but the amino acid material of the product reduces similarly, as well as the protein high quality of the product reduces.

Plume dish has high healthy protein web content, yet the amino acid is not balanced sufficient. In order to solve this problem, poultry viscera, hen blood and feathers can be blended and also refined into digestive plume meal.


Fish feed pellet extruder extruding technology is a feed handling modern technology established at the end of the 20th century. Stress cutting has a good result on managing the thickness of extruded products, offering a brand-new technique for handling high-demand aquafeeds.

The use of waste vapor and waste heat for conditioning makes the machine more environmentally friendly as well as adapts to the pattern of the moments. Extrusion innovation of fish feed pellet extruder is widely made use of in aquatic, swine and ruminant feeds, which has a significant effect on transforming feed high quality and also decreasing costs.

With the advancement of fish feed pellet extruder extruding innovation, even more comprehensive research is required on exactly how to precisely regulate the expansiveness and also extruding top quality of extruded feed, as well as improve the automation of extruding.