RiChi & News Industry News FAQ

Why does the aquatic feed industry need screw extruder?

  • Clicks:

With the development and integration of the international puffed fishery industry in recent years, the development of group companies will become stronger and more professional. At the same time, consumer demand for aquatic products is getting stronger and stronger, and quality requirements are getting higher and higher. Therefore, the demand for aquatic equipment in the future will be large-scale, professional and intelligent.

The demand of the aquatic industry is constantly expanding, and the pellets required by the aquatic industry will be more and more. Then, the demand for aquatic feed pellet production lines also will be more and more.

fish feed extruder
fish feed extruder

1.Application of fish feed extruder in aquatic feed

Extrusion processing is a process that raw materials undergo high temperature, high pressure, and instantaneous curing. It integrates transportation, crushing, extrusion, mixing, shearing, high temperature disinfection and molding, and can process thick, high fat, high water. This raw material is incomparable with ordinary production technology, so it is increasingly used in the production of high-end feed and food such as aquatic feed, pet feed, and special breeding.

2.Processing process

Fine crushing of raw materials → ingredients, mixing → puffing → pelletizing → drying → spraying → cooling → metering and packing.

Processing process
Processing process

3.Expansion effect of fish feed extruder

The expansion effect of the aquatic feed produced by the selected extruder should meet the following requirements:

A. Particle forming rate ≥99%;

B. Particle floating rate = 100%, sinking rate ≥99%;

C. Uniform particle size, consistent color and luster, good water resistance;

D. Floating materials should be kept in water for 10 hours, and sinking materials should be kept in water for 3 hours.

4. the life of the extruder

Screw extruders from different manufacturers have very different service lives due to their different transmission mechanisms, structural characteristics, materials used, and processing techniques. When selecting the extruder, we should first pay attention to whether the overall structure design is reasonable, the manufacturing process of each component, the selection of materials are good, and the wear resistance of the wearing parts. Energy consumption.

At present, the types of formulas on the market can basically be included in the following ten categories, and now there are corresponding mature configurations.

Requirement items Typical fish species Description Corresponding standards
Capacity ratio
Floating: high starch, low protein, low fat Freshwater fish 15 ~ 16% starch, 28 ~ 32% protein, 4 ~ 5% intrinsic fat 100%
Floating: high starch, slightly high protein, high fat Raw fish, sea bass, red-billed bream, marine fish 15 ~ 16% starch, 36 ~ 42% protein, and 6 ~ 7% intrinsic fat. 110%
Floating: low starch, low protein, low fat Tilapia, freshwater fish 10 ~ 12% starch content, 28 ~ 32% protein, and 4 ~ 6% intrinsic fat. 100%
Floating: low starch, medium protein, and fat Raw fish, sea bass, and red-headed salamander 12 ~ 13% starch content, 6 ~ 8% intrinsic fat, 42% protein 90% -100%
Floating: low starch, high protein, high fat California bass, big yellow croaker, osmanthus fish The content of starch is 8-10%, the internal fat is 6-9%, and the protein is 48-52%. 80% -90%
Sinkiness: Normal starch Crab stuff Flour content 15 ~ 16% 70%
Sinkiness: Low starch Crab stuff Flour content 8 ~ 10% 60% -70%
Sinkability: Sink slowly Freshwater fish Internal fat content 6 ~ 9% 60% -70%
Sinkability: Sink slowly Basket fish, bonito, grouper Internal fat content 7 ~ 9% 60% -70%
Sinkiness: less starch, no starch Fried osmanthus fish and open shrimps Internal fat content 7 ~ 9% 60%

The above is the article for you: Why does the aquatic feed industry need screw extruder?. If you are interested in our products or project solutions, please contact us. We will give you the best product quality and the best price. Email:

Related Equipment
Related News
Safety Operation Rules for Feed Pellet Pressing Extruder...
Safety Operation Rules for feed pellet pressing extruder. Check all parts of the feed pellet pressing extruder, especial ...02-12
Parameter Case of Fish Feed Extruder Machine and Fish Feed P...
Parameter Case of Fish Feed Extruder and Fish Feed Pellet Production Line. Our common extruders include dry extruder, we ...02-12
Single Screw Aquatic Feed Extruder Mill for Fish Shrimp & Pe...
Feed extruder can produce a variety of animal feed pellets. Various aquatic feeds: floating fish feed, sinking fish feed ...09-23
Feed Extruder: Highly Efficient Feed Machinery in the Aquati...
The cost of fish feed in fish farms is relatively high, and the price of aquatic feed will rise every year. Farmers can ...09-18
Floating Fish Feed Extruder Or Fish Feed Pellet Productio...
I need a quote on a floating (for at least 30 minutes) fish feed extruder with following ingredients in capacity 1 ton p ...09-14
Aquatic Feed Pellet Machine And Extruder For Cat Fish Food P...
Recently, a Nigerian customer wanted to purchase Cat Fish feed pellet equipment. He emailed:"Good morning. My name is K ...08-24

From Order To Delivery

Checking Order

With the sales contract, the order tracking clerk checks the models and quantities of each machine and spare parts.

Quality Test Before Delivery

Upon completion of the manufacturing of equipment, tthe quality inspector strictly checks quality of every machine with the checklist.

Check Items When Packing

Before packaging and shipment, the order tracking clerk checks the packaged items again with the packing list to avoid loss of items.

Sign the contract

Adopting international common standards for accurate design of product packaging, prevent product damage rate and the effective use of transport tools, which ensure the perfect delivery of products.

Get the minimum offer free of charge, please fill in the following information to tell us (confidential information, not open to the public)

Copyright © 2015-2021 by HENAN RICHI MACHINERY CO,LTD.All rights reserved. Tel:0086-18574103366