Wet extruder features:
The brand-new design strengthens the main shaft’s ability of bearing torque and thrust.
The steam control in conditioner is more convenient and accurate, the liquid can be added evenly, and furthermore, enhanced double-layer conditioner can be customized.
The material can enter the extrusion section freely. The special designed feeding section ensures no material blockage and returning.
The quick discharging device under the conditioner prevents the material or unwanted material entering the extruding section.
The adaptation for material is enhanced which ensures continuous, stable, and effective production of soybean, corn, compound feed, and so on.
Equipped with wet extruder and expander, extruding and expanding processes can be switched with only few components replacement to produce different feeds.
It possesses the double allocation of wet extruder and expander, which can realize the shift between extrusion and expanding crafts, produce different feeds, under the condition of replacing a few components.
It is especially suitable for raw material processing of medium and large sized feed, for extruding piglet material, and for other poultry feed. Together with pellet mill, extruding pellet mill can be realized.
Working Principle of Fish Feed Pelletizer
The heart of the extruder machine working is:
preconditioning, cooking and die shaping. With boiler continuously providing hot steam into the conditioner, mixed materials from fish feed mixer can be fully cooked and the nutritional value is improved. The cooking process can cause a high level of gelatinization of starches, results in feeds with good water stability. The fish feed extruder is a long barrel with a screw auger inside which is specially designed to subject feed mixtures to high heat and steam pressure. When feed exits the die at the end of the barrel, trapped steam blows off rapidly, the soft warm pellets expand, and a low density floating pellet is produced. After that a cutting device will cut the formed pellets into different length as required. The extruder is very versatile, and can make feeds with many different characteristics.
Attentions: our fish feed extruder is of single screw design. The pellets extruded from pellet mill is about 80℃ and moisture content is 18%-20%, so you should equip a dryer and cooler if the capacity is more than 500kg/h. While for small capacity, you can dry them in the sun. We also provide technical formula for making floating fish feed pellets after placing order.