With a boiler for providing hot steam, wet type fish feed extruder can produce all kinds of floating or sinking fish pellets with higher digestibility and quality. Widely employed in medium or large size feed production!
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.
Wet Type Fish Feed Extruder
