Fish Food Pellet Production Process Using a mini fish feed machine
January 21, 2026
Common problems and solutions in the puffing process:
1. Insufficient puffing and hard texture of pellets, often caused by low temperature (below 120℃), insufficient pressure, or low starch content in the raw materials. Solution: Increase the temperature by 5-10℃, adjust the screw speed to increase pressure, and optimize the formula to increase the starch content to over 35%.
2. Burnt pellets with an off-odor, caused by excessively high temperature (above 160℃) or excessive raw material residence time. Lower the temperature, increase the screw speed, and clean the burnt residue from the extruder die and barrel to prevent contamination of subsequent raw materials.
3. Equipment blockage, often caused by excessive moisture content, uneven particle size, or excessive impurities in the raw materials. Immediately stop the machine to cool down, clean the die and screw for residual material, readjust the moisture content and particle size of the raw materials, and strengthen impurity screening.
Post-processing and quality issues and solutions:
1. Pellets absorbing moisture and becoming moldy, with excessive moisture content, may be due to insufficient drying temperature, inadequate cooling, or poor packaging sealing. Increase the drying temperature (80-90℃), extend the cooling time, replace with better-sealing packaging materials, and add desiccant. Second, poor palatability of the pellets and low fish consumption are often due to insufficient seasoning or loss of flavor substances caused by high temperatures in the floating feed extruder machine. This requires increasing the amount of oil and fishmeal added, optimizing extruder parameters to lower the temperature, or using post-seasoning processes to replenish flavor components. Third, pellets are prone to breakage and have poor water resistance, stemming from over-expansion or incomplete drying. This requires reducing extruder pressure and temperature, and extending drying time to ensure adequate moisture content.
Preventative Management Points: Regularly check the wear of core components (screw, barrel, die) of the floating feed making machine, replacing them promptly when wear is severe to avoid affecting the extrusion effect; establish a raw material pretreatment inspection mechanism to ensure particle size and moisture content meet standards; monitor extruder parameters in real time during production, and regularly calibrate sensors to ensure parameter accuracy; thoroughly clean equipment residues after operation and regularly lubricate the transmission system to prevent malfunctions throughout the entire process.
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