Does every step in the fish food extruder line affect the quality?

The processing flow of an extruder pellet machine line can be simply described as "raw materials to powder → powder to wet feed → wet feed to extruded pellets → pellets to dry feed → dry feed to finished product," specifically divided into five steps:

The first step is "raw material grinding." At the very beginning of the production line is a "grinder." Raw materials such as corn, soybean meal, and fishmeal are poured into the grinder, where high-speed rotating blades grind the raw materials into fine powder. Generally, it needs to be ground to 0.8-1.2 millimeters (about the size of flour). The finer the powder, the easier it is to mix evenly and extrude into pellets. After grinding, the powder is piped to a "raw material silo" for temporary storage, awaiting the next stage.

 

The second step is "precision mixing." The powder enters a "mixer" from the raw material silo, while vitamins, minerals, palatability enhancers, and other additives are added according to the formula. The dual-shaft paddles in the mixer rapidly agitate all the raw materials and additives into a uniform "mixed powder," much like kneading dough at home, ensuring that every bite of feed has the same nutritional value. The mixing time is generally 5-8 minutes. Insufficient mixing will result in some pellets being more nutritious than others, affecting animal growth. The third step is "high-temperature puffing," the most crucial step. The mixed powder enters the "puffing machine"-the core equipment of the dry-type fish feed extruder line. The screw inside the puffing machine rotates rapidly, pushing the mixed powder forward while simultaneously heating it to 110-130℃ and reaching a pressure of 3-5 MPa. Under high temperature and pressure, the starch in the mixed powder gelatinizes, generating gas. When extruded from the die holes of the puffing machine, the pressure suddenly drops, the gas expands, and the mixed powder becomes fluffy pellets, like "mini popcorn."

 

The fourth step is "cooling and drying." The freshly puffed pellets are 80-90℃ and still very soft, so they need to be sent to the "cooling machine." The fan in the cooling machine blows cold air, lowering the pellet temperature to room temperature (25-30℃) and removing excess moisture, making the pellets harder and more resistant to storage. Cooling time is generally 10-15 minutes. If cooling is incomplete, the pellets are prone to mold. The fifth step is "screening and packaging." After cooling, the pellets enter a "screening machine" to remove broken pieces and unqualified small pellets, leaving uniformly sized, qualified pellets. Finally, a "packaging machine" packages them by weight, for example, into 20-kilogram bags, which are then sealed to become the finished extruded feed sold in the market. The entire floating feed production line, from raw materials to finished products, can produce several hundred kilograms per hour, which is much more efficient than manual processing.

 

 

 

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1. What is the price of the floating fish feed extruder production line?

The price ranges from approximately $15,000-$49,000

2. Do you provide maintenance services for your customers?
Yes, we offer comprehensive after-sales maintenance services to our customers.

 

 

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