Pellet feed pk extruded feed?

There are two types of aquatic compound feed, one is pellet feed and the other is extruded pellet feed, referred to as extruded feed. The same goes for crayfish feed. There are currently two crayfish feeds on the market, one is crayfish pellets. The other is crayfish extruded feed. And what is the difference between the two kinds of feed technology and properties?

Crayfish pellet feed: The production process is basically: firstly, different raw materials are crushed by a grinder, and then the raw materials are mixed through a raw material premixer. The mixed raw materials are the semi-finished products of the crayfish compound feed, and the next step is the process of making pellets. The pre-mixed compound feed enters the mechanical conditioner and the pellets are pressed by the annular membrane! The diameter of the annular membrane is the diameter of the feed. To make pellets of different sizes, use annular membranes of different diameters to extrude the pellets. It is the finished pellet feed!

There are two important points: First, the performance of the grinder will determine the fineness of the raw materials. Second, the temperature at which the crushed powder feed enters the conditioner is about 80-90 degrees. This temperature can make the powder semi-cooked, and finally the refined powder is extruded into pellet feed through the ring membrane. Therefore, the pellet feed is semi-cooked feed.

1. Extruded feed

The manufacturing process of extruded feed is roughly the same as that of pellets. However, compared with pellet feed, the extruded feed has two more processes. One is that it will be pulverized twice before pellets are made, that is, superfine pulverization, and the fineness of the raw material powder The pellets are finer. The second is the extruder machinery, the feed material temperature in the extrusion cavity is as high as 110-200 degrees, high pressure, environment, continuous mixing, tempering, heating, pressurization, maturation, extrusion, extrusion, after the film hole is suddenly reduced in pressure. Leavened porous pellet feed.

In addition, the water content of the extruded feed is much lower than that of the pellet feed. Because the water is lost during the high temperature and high pressure process, 1.1 tons of powdered raw materials are made into pellets and only 1 ton of finished extruded feed.

2. The nature of the water

In order to ensure that the pellet feed does not melt for a long time in the water, it is necessary to add a large amount of binders such as high-gluten flour or other animal-absorbable binders to achieve the effect of long-term water retention. The puffing machine is not used, because it is purely matured, it can become a puffed state after a few hours of water, just like a sponge.

3. Dust

Pellet feed dust is obviously excess extruded feed.

4. The cost of crafting

The manufacturing cost of extruded feed is 1-1.5 times the manufacturing cost of pellet feed.

5. Absorption problem

Extruded feed undergoes high temperature and pressure to eliminate a large number of bacteria, has a good taste, and must absorb better than similar raw material pellets.

6.Market pellet machine price and extruder price

Because the price of extruded machinery and process cost is much higher, the price of extruded feed is generally higher than that of pellet feed, and extruded is generally used to make high-end fish feed.

7.The selection of crayfish farming

According to the actual conditions of puffing and pellets, comprehensive prices, sensory perception, and actual feeding effects, you can choose a feed that is most suitable for you.

If you need Aquatic feed making machine, such as fish feed making machine or shrimp crayfish feed making machine , please contact us freely.