Wet Floating fish feed extruder machines for Multi-Aquatic Feed Production
January 22, 2026
Temperature parameters: Adjusted according to the required degree of puffing
High-puffing feed (e.g., feed for mid-to-upper-level fish and bullfrogs): Temperature 130-160℃ to ensure full starch gelatinization and the formation of a porous floating structure; Medium-puffing feed (e.g., feed for bottom-dwelling fish and juvenile crabs): Temperature 110-130℃ to balance pellet formation and disintegration; Low-puffing feed (e.g., feed for adult crabs and soft-shelled turtles): Temperature 90-110℃ to reduce porosity, increase pellet compactness, and prevent excessively rapid dissolution in water.
Pressure and speed: Synergistically optimize pellet characteristics
Pressure and rotation speed must be matched with temperature. For high-expansion feed: pressure 4-6 MPa, rotation speed 280-320 r/min, extending the raw material residence time and promoting water vapor expansion; for medium-expansion feed: pressure 3-4 MPa, rotation speed 320-350 r/min, balancing expansion and compaction; for low-expansion feed: pressure 2-3 MPa, rotation speed 350-400 r/min, shortening the residence time and inhibiting expansion. Simultaneously, adjust the pellet length by controlling the cutter speed to accommodate different feeding habits.
Parameter calibration: ensuring production stability
Before changing feed types, preheat the wet fish feed pellet processing machine to the set temperature under no-load conditions, calibrate the temperature and pressure sensors to avoid parameter deviations; conduct small-batch trial production, sampling and testing pellet hardness, buoyancy, and cooking degree, gradually fine-tuning parameters; during production, inspect every 30 minutes to ensure stable extruder parameters and avoid fluctuations that could lead to uneven feed quality.
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