Fish Feed Extruder/Pelletizer | 1 ton/day

Fish Feed Extruder

A feed pelletizing machine is used for converting feed ingredients that are in mash form into dry pellets, resulting in strong, smooth pellets that are good for feeding fish. While a feed pelletizer is mainly utilized to shape or produce pellets, a fish feed extruder has many functions and shaping is only one of them.

Similarities/Differences between Pelletizer and Extruder

The similarities of a feed pelletizer and a fish feed extruder can be summarized as follows:

1. Both utilize steam, pressure, and temperature.
2. Both have dies to form the pellets (however, they work on different principles).

The differences between them are the following:

1. A pellet mill shapes the pellets by compression through long dies, thus the pellet is dense. In most cases, a pellet binder is needed in the formula to facilitate the cohesion of the pellet.
2. A fish feed extruder will expand the pellet through substantial gelatinization of the starch, expansion, and increased porosity thus the reduction of the density. No need for the addition of a pellet binder in most cases.
3. In the case of floating fish feed, extrusion allows you to control the buoyancy of the pellet by the degree of starch gelatinization dictated by many factors such as the moisture content, extrusion temperature, and amount of shear generated and the size of the die used.
4. In pet food, palatability and lower microbial load are crucial and extrusion enhances both.
5. Extrusion allows you to use a higher level of oil or fat without creating many fines thus higher integrity of the pellet.

Features/Benefits

• Pelleted feed made by feed pellet machine can make animals have better performance than a meal ration.
• The heat generated in the pelletizing process can make the feedstuffs more digestible by breaking down starches.
• The fish feed extruder reduces waste and less segregation in the feed.
• It improves palatability.
• Pellets ensure a short eating period.
• Improved animal performance.
• The fish feed extruder requires higher levels of moisture, heat, and pressure than pelleting. A temperature higher than 100℃ is needed in order to achieve expansion of the feed as it leaves the die.
• Extrusion consists of wet extrusion and dry extrusion.

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