Floating fish feed pellet extruder technology

Author : Dowling Sloth | Published On : 07 Apr 2026

In the production of extruded feed, the primary equipment is a screw fish feed pellet extruder. The material is fed into the fish feed pellet extruder, as well as the screw screw pushes the product to develop an axial flow.

At the same time, as a result of the mechanical friction between the screw and also the product, the product and the barrel, as well as the product inside the product, the material is strongly pressed, stirred, and also sheared, and because of this, the material is additional fine-tuned and also co-opted.

As the pressure gradually increases, the temperature level boosts appropriately. When the paste product is expelled from the die opening, under the activity of a solid pressure difference, the product is puffed by floating fish feed making machine, dried out and also cooled. The puffed product is loose, porous, crisp, as well as has excellent palatability and also taste.

The fish feed pellet extruder puffing technology appear the traditional processing technology, makes the physical homes of the feed change qualitatively, substantially advertises the advancement of the feed processing industry and also the reproducing industry, and also is a significant technology in the feed industry.

The fish feed pellet extruder puffing process is a process that incorporates various operations such as mixing, working, shearing, home heating, and also air conditioning. The following is a certain analysis from the facets of density control, automated control and energy conserving and consumption reduction.

1. Density control modern technology

In the extrusion process of fish feed pellet extruder, there are many aspects that influence the density of feed, such as refining modern technology, fish feed pellet extruder equipment, refining parameters, process control, feed raw materials, formula and more.

It is practical to manage the item thickness by changing the raw material or formula, yet it has little application worth; by transforming the screw setup, the thickness control of the extruded feed product can be realized, however the procedure is inconvenient. Thickness control can additionally be achieved by adjusting the operating parameters.

In addition, in the fish feed pellet extruder processing of marine feed, in order to meet the feeding demands of marine pets, the ups as well as downs of marine feed need to be controlled, and the ups and also downs of feed are closely related to thickness, so density control is used in the manufacturing of marine extruded feed.

Modern technology is specifically crucial. At present, managing the density of extruded products is mainly achieved by managing the stress and also temperature. The primary methods are as follows:

( 1 )Open up a stress alleviation opening on the extruding cavity, as well as connect the stress alleviation opening when producing floating feed, so as to fulfill the needs of high temperature and high pressure for processing floating feed.

Open the pressure alleviation hole when feeding, to ensure that when the product reaches the stress alleviation opening, the stress in the sleeve is partly launched, and also at the same time, some water vapor is also discharged from the pressure relief opening.


These products are extruded by fish feed pellet extruder throughout of the extruding dental caries and afterwards compressed to acquire a hefty feed with high mass density. This stress relief opening can likewise be made use of to evacuate, to make sure that the product loses part of the water vapor during the forced movement.

This fish feed pellet extruder process method understands the control of the density of the extruded product by controlling the pressure in the extruding dental caries, and also the result will not be impacted since the feeding amount does not need to be reduced.

( 2) A stress controling device is added in the floating fish feed extruder machine (pressurization before the die). The pressure guideline of the fish feed pellet extruder is to set up a shut-off valve between the extrusion cavity as well as the discharge design template to readjust the pressure distinction in between the extrusion cavity and also the beyond the extrusion cavity.

( 2 )Pressure cutting innovation (post-mold pressure). A new kind of thickness control system was developed for aquafeed. This thickness control system of fish feed pellet extruder takes on pressurized reducing innovation to keep a specific favorable stress in the cutting chamber.

When the material enters the reducing chamber from the puffing chamber, since the boiling point of water raises with the stress, the flash dissipation can be reduced to control the degree of development of the product, as well as the starch molecules are instantaneously solidified in the reducing chamber, as well as the material no longer gets in the typical pressure from the reducing chamber.

The positive pressure of the cutting chamber can be understood by inputting compressed air with an air pump, as well as the follower can be turned off when releasing.

This fish feed pellet extruder process method prevents regulating other variables that influence the degree of expansion, thus decreasing the demand for hand-operated procedure, and at the same time, the controllability is more powerful than various other approaches.

At present, this brand-new fish feed pellet extruder innovation has not been used in China, however this modern technology transcends to the exhaust approach in regards to density control of extruded items as well as operation and also usage, as well as is a brand-new direction for the development of extruded innovation.

( 4) Managing the opening price of the design template. By changing the opening price of the discharge template, the pressure distinction before and also after the theme can be changed, so regarding accomplish the function of regulating the thickness of the product. 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 fast as well as precise control of the process parameters by outfitting the extrusion equipment with a computer-aided control system.

The application of automatic control technology in the fish feed pellet extruder puffing process can not just improve work effectiveness, but also improve item top quality stability. Designs of automated control at home and also abroad

There are researches on all sides. The automated control technology of the fish feed pellet extruder puffing process has actually made fantastic development, and also a visualization control system of the puffing process has been developed. The extruding system of fish feed pellet extruder based upon FIX commercial configuration software recognizes the visual control of the extruding process

The sensor can be made use of to conduct on-site detection and also comments on the operating criteria of the fish feed pellet extruder, immediately change the pertinent functioning criteria of the floating fish feed pellet machine, as well as realize numerous pre-programmed by the driver.

Functioning criteria, with formula storage, report printing, alarm, vibrant display screen and recording of functioning specifications. International computer automatic control innovation has already been applied in the field of feed processing

In the entire fish feed pellet extruder process, it has been developed from a single computer system control system to an advanced automatic control system, which can show color images in the central control area, computer program control and also communication network for floating fish feed making machine operation, it can complete all production procedures without unmanned operation.

Generally, the automatic control of puffing in feed handling abroad has actually been developing towards the instructions of combining with item quality.

While the intro of computer systems in my nation is mainly to resolve the trouble of manufacturing automation, just focusing on the surveillance of equipment procedure in the production process as well as the control of stand-alone equipment. It has not played its due function in improving product high quality and also other aspects.

3. Power saving in extrusion process.

The trouble of energy saving as well as intake reduction is the research study focus in the fish feed pellet extruder extrusion process.

Currently, it is mostly with the study of low energy intake handling technology and also the impact of primary process parameters on energy usage, and also the establishment of equivalent mathematical designs to attain the objective of power conserving and also intake decrease.

In order to minimize the energy intake in the fish feed pellet extruder puffing process, some residential feed makers mostly take measures from the process. As an example, in the manufacturing process of suckling pig feed, the corn raw material used is not full puffed product, but part of the puffed product and also part of the traditional product.

In the later fish feed pellet extruder granulation process, processes such as expansion and low temperature granulation are made use of to make certain that the power intake per unit item is lowered.

From the above evaluation, it can be seen that it is still a bottleneck trouble exactly how the process parameter study in the fish feed pellet extruder puffing process can be symbolized in reducing energy usage as well as can be realized in actual production.

4. Application of extrusion in floating fish feed processing.

In the last few years, the application of fish feed pellet extruder extrusion modern technology to feed production is an epoch-making leap in feed production modern technology. The primary advantages of extruded granulation:

( 1 )The processing temperature level is high as well as the dampness material is big, and the material can be completely grown as well as broken down. The pellets are of high quality as well as the feed titer is high;
( 2 )The flexible series of pellet density is huge, which can adjust to the needs of different feeding items and different feeding environments.

( 1) Puffed suckling pig feed

The essential indicators of nursing pig feed are hygiene and also growth to stop suckling pigs from looseness of the bowels. The raw products are treated with heat and high pressure, on the one hand, it kills pathogenic microorganisms, on the other hand, the starch product is fully prepared, as well as the soybean protein is denatured and also purified, so that the product is easy to absorb as well as take in. Gelatinized starch can stimulate the production of lactic acid in animals and also enhance the anti-bacterial capability of animals.

( 2) Extruded aquatic feed
The water feedl is extruded and granulated by fish feed pellet extruder, which improves the quality of the product from all aspects.

① Boosted feed titer. Extrusion ripens the starch, which is important for fish as raw starch is tough to absorb. The starch is prepared, the cohesiveness of the material is improved, and the creating effect is good. On the premise of making certain the high quality of pellets, the formula can be adapted to lower costs.

② The floating time of pellets in water is regulated by the thickness of pellets, and also the density is established by the degree of puffing by fish feed pellet extruder.

Consequently, by changing Continue , readjusting the selection and also material of starch and binder, as well as readjusting the process parameters, that is, adjusting the wetness, stress, temperature, etc, extruded pellets with various thickness can be created.

( 3) Puffed chicken feed

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

Experiments have shown that puffing can improve the digestion and absorption rate of feed for poultries. Extruded chicken feed, due to its small mass thickness, can decrease chicken feed consumption, stay clear of excessive weight, and improve egg manufacturing.

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

Ruminants such as livestock and also sheep can transform non-protein nitrogen (such as urea) right into animal protein. The trick to adding urea to feed is exactly how to manage the addition amount, uniform feed intake as well as urea decomposition price. Urea-expanded corn addresses these troubles most properly.

The urea, corn flour and also ingredients are mixed in a specific percentage and then go into the floating pellet machine, the corn flour is broadened, as well as the gelatinized starch as well as urea develop a layer framework. Urease inhibitors prevent the activity of urease. It inhibits the release rate of ammonia after urea decay from 2 elements, and prevents ammonia poisoning triggered by excess ammonia.

( 5) Rice bran preservation therapy.

Fresh rice bran includes really active lipolytic enzymes, which can promptly decay the oil had in rice bran into totally free lipids.

Fatty acid and also rancidity, so the storage space efficiency of fresh rice bran is very poor. The rancid and ruined rice bran not just decreases the oil return, but likewise influences the development and development of livestock as well as chicken if fed as feed.

As a result, fresh rice bran must be kept fresh in time. Extrusion, high temperature, high pressure and high shear can suspend lipase and also stop rancidity and wear and tear. Extrusion has actually come to be a new pretreatment process in rice bran oil production.

( 6) Cleansing of oilseed dish healthy protein.

In addition to soybean cake (meal), the cake (dish) acquired from rapeseed, cottonseed, sunflower seed, castor and various other oilseeds likewise contains a particular quantity of healthy protein, which is an excellent resource of feed healthy protein. However, different oil cakes (consisting of soybean dish) can not be straight used to formulate feed, because they all have a particular quantity of anti-nutritional aspects or various other hazardous components.

Oil cake (dish) must be detoxed before it can be utilized. Detoxification methods consist of chemical and physical techniques. Oilseed cake (meal) extrusion cleansing is a modern-day innovation applied to oil cake (dish) treatment by extrusion technology.

( 7) Feather puffing handling.

Because of the existence of disulfide bonds as well as hydrogen bonds between feather polypeptide chains, the structure of feather healthy protein is specifically secure, and also pet digestive system enzymes are basically incapable to digest and also decompose, so the feather extrusion technology has been created.

After the feather is extruded as well as puffed, its disulfide bond is damaged, the molecular framework is damaged, and the digestive enzyme is very easy to absorb and also disintegrate, and the digestibility is boosted. The digestibility is associated with the level of destruction and extrusion temperature.

When the floating pellet machine extrusion temperature is high, the digestibility of the puffed plume product rises, yet the amino acid content of the product lowers likewise, and the protein quality of the product reduces.

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


Fish feed pellet extruder extruding modern technology is a feed processing modern technology developed at the end of the 20th century. Stress cutting has a good result on managing the density of extruded products, offering a new method for processing high-demand aquafeeds.

The use of waste vapor as well as waste heat for conditioning makes the machine a lot more eco-friendly as well as adapts to the pattern of the times. Extrusion technology of fish feed pellet extruder is extensively made use of in aquatic, swine and also ruminant feeds, which has a considerable result on changing feed quality and reducing prices.

With the advancement of fish feed pellet extruder extruding modern technology, more extensive research study is required on just how to accurately control the expansiveness and extruding high quality of extruded feed, and boost the automation of extruding.