120 visiting now: 95 USA USA flag 23 Belgium Belgium flag 3 UK UK flag 2 China China flag

Highlighted Companies

  • YESN-China shipping Labels manufacturer-compatible label factory (China): XIAMEN YESN-China shipping Labels manufacturer-compatible... http://www.yesnlabels.com
  • Eagle Eyes China Inspection Company (China): Eagle Eyes (CHINA) Quality Inspection Co.,Ltd. is a professional Third... https://www.china-qualityinspection.com
  • Processing Technology Of Extruded Fish Feed Pellets - China

    price: contact company for price

    Extrusion processing technology to produce floating fish feed pellet has become the development trend of aquatic feed processing technology.

    The unique function of the fish feed extruder is to change the weight of the feed, so that it can be made into floating, slow sinking, and sinking puffed fish feed.

    Floating fish feed can not only improve feed efficiency, but the most important thing is to make fish feed visible to farmers, which can avoid overfeeding and reduce feed waste.

    However, because the processing technology of aquatic extruded feed is more complicated than other processing technologies, in the actual production process, it often appears that the processing quality of aquatic extruded feed is unstable or that individual varieties cannot produce qualified products.

    There are many factors that affect the processing quality of aquatic extruded feed.

    Only after fully understanding the impact of extrusion process equipment and raw cooking characteristics of feed on the processing quality, and scientifically changing the operating conditions of extrusion and floating, it can effectively control the processing quality of aquatic extruded feed and improve the product one-time pass rate.

    Zhengzhou Fusmar Machinery is a professional fish feed pellet machine manufacturer, welcome to inquiry us.

    Extruded Floating Fish Feed Pellets

    Extrusion curing is completed by combining the effects of water, pressure, temperature, and mechanical shear.

    During extrusion curing, the temperature in the fish feed extruder machine can reach 90~200 ℃, and the extrusion duration ranges from 2 to 30 seconds.

    The extrusion product will undergo a series of physical and chemical changes, such as starch gelatinization, protein denaturation, enzymes, toxic Inactivation of ingredients, and microorganisms.

    Fish Feed Extruder Type And Structure

    There are many types of extruders on the market.

    According to the screw composition, they can be basically divided into single-screw extruders and twin-screw extruders.

    Single screw extruder can be divided into wet curing extruder, dry curing extruder, and cold forming extruder.

    The extruder generally consists of four parts, including the feeding system, the modulator, the boring and cutting device of the extruder.

    The variable-speed feeding screw in the feeding system feeds the raw materials into the pre-conditioner.

    The operator can view and monitor the feeding situation through the high and low-level indicators and visual glass windows.

    The modulator injects water and heat in the form of steam, and the entire modulation process continues.

    Making Sinking Puffed Feed

    When making sinking puffed feed, fill the modulator with water (no or little steam).

    The mold should have 26-30 atmospheres (25-29 kg/cm³).

    The extrudate should contain 28-30% of water.

    The rear bulk density is 450~550g / L, the temperature is 120 ℃, and the moisture is 26%.

    The warm-cure extruder uses a die with a vent, and the dry fish feed extruder uses a secondary extrusion die.

    This can reduce the temperature, moisture, and expansion rate of the extruded product and make a sinking feed smoothly.

    The die with air vent is close to the template, so it can also be used in the situation where vitamins, pigments, and flavor enhancers need to be added to the extruded material, which can avoid excessive hydration.

    The sinking fish feed should contain 10% starch and 12% fat, and the final extrusion product should be dried to 10% to 12% water.

    Excessive drying will cause the sinking feed to float.

    Hope this article can help you know more fish feed pellets, if you want to build your own fish feed pellet production line, please contact us.


    Company Contact:


    • Phone: +8615838279423

    • Address: No.45 Agricultural Road, Jinshui District, Zhengzhou , Henan , China

    • Email: Email


    Published date: January 3, 2020

    • Business Description: Zhengzhou Fusmar Machinery Co.,Ltd is a professional fish & animal feed pellet machinery and wood pellet machinery manufacturer.

      We have our own engineer and sales team to provide best machines and services to our customers worldwide.

      Our products mainly include floating feed pellet machine,animal feed pellet machine,feed grinding machine, feed mixer,wood crushing machine,wood chippers,hammer mills,pellet coolers, pellet packing machine,conveyors and other spare parts.

    Related listings



    • The Important Contribution Of Wood Pellet Machine In New Energy Industry
      The Important Contribution Of Wood Pellet Machine In New Energy Industry
      Machinery - Zhengzhou Fusmar Machinery Co.,Ltd - China - December 30, 2019 - contact company for price

      Our company Fusmar is a professional wood pellet machine manufacturer that has the advantages of advanced structure, reliable performance, low energy consumption, and stable operation. Provide each customer with intimate pre-sales and after-sales pro...

    • Vibrating Feeder For Mining Minerals Quarries
      Vibrating Feeder For Mining Minerals Quarries
      Machinery - JXSC Mine Machinery Factory - China - December 27, 2019 - 1000.00 Dollar US$

      JXSC vibrating feeder is a heavy-duty feeder which uses the vibration and gravity to push the material forward. The vibratory feeder can transport the large stone materials uniformly, regularly and continuously to rock crusher machine from the hopper...

    • How To Build The Carbonization Kiln More Durable Charcoal Briquette Machine
      How To Build The Carbonization Kiln More Durable Charcoal Briquette Machine
      Machinery - Zhengzhou Fusmar Machinery Co.,Ltd - China - December 27, 2019 - contact company for price

      In the charcoal briquette production line equipment, the production of mechanism charcoal needs a carbonization furnace. If you buy a good carbonization furnace, you can produce high-quality machine-made charcoal. Of course, if the wrong carbonizatio...



    Safe Trade Tips

    • Ask for business references and check them
    • Use a payment method that offers better protection for all such as Letters of credit and verified professional escrow services. Avoid payments in advance such as money transfers
    • Verify their business via their local Chamber of Commerce
    • Search the internet using their website address, their business name, their phone and fax numbers, and their email addresses to see if you can find any feedback about them.
    • Get to know more about scams and fraud to avoid: Internet Crime Complaint Center - Consumer Financial Protection Bureau
    • This site is never involved in any transaction, and does not handle payments, shipping, guarantee transactions, provide escrow services, or offer "buyer protection" or "seller certification"