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Dry Vs Wet Type Fish Feed Extruder
Dry Type Vs Wet Type Fish Feed Extruder

What Is Dry Type Fish Feed Extruder?

There are two kinds of fish feed equipments for making floating aquatic feed, one is dry type fish feed extruder, the various other is wet type fish feed extruder.

The dry type fish feed extruder is primarily made use of for the manufacturing of aquatic feed, such as making fish feed pellets, tilapia feed, catfish feed pellets, shrimp feed, crab feed, turtle feed, goldfish feed pellets, and so on. The completed pellet feed is squeezed out at heat with the home heating plate in the dry type fish feed maker.

For that reason, the finished granules can float on the water for concerning 1 day because of being puffed. Finished bit sizes can be 0.9 mm, 1mm, 1.5 mm, 2mm, 2.5 mm, 3mm, 3.5 mm, 4mm, 4.5 mm, 5mm, 5.5 mm, 6mm etc as much as a bigger 15mm. dry type maker warming the product by electric heating plate, this dry type machnine extrudes the product from the holes of the die under the activity of the screw extruder.


When the pellets come out of the machine, the pressure and also temperature level decline sharply, as well as the water evaporates. The product is then increased into particles with a permeable structure. Throughout this process, wetness varieties from 15% to 20%.

Working Principle Of Dry Type Fish Feed Extruder

When extrusion procedure, the material from the open end of the extrusion tooth cavity input, by the screw transport to the whole extrusion cavity, and then the auxiliary extrusion component into a variety of locations, in each location in between the positioning of a ring (pressure ring) as the flow and stress control, the screw conveying activity to promote the product circulation via the ring space in between the pressure ring and also the within the dental caries, the mechanical energy produced by the rotational movement of the screw right into warm The rubbing in between the material and the parts of the dry type fish feed extruder machine and the inner rubbing of the product.

As the material is extruded via the die opening at the end of the blowing dental caries, the dough-like material is processed right into a particular shape, and due to the substantial propulsion of the screw in the blowing tooth cavity of the dry type fish feed equipment, a huge pressure is created.

Forming in the product, when these products are extruded from the die hole, a huge quantity of water in the product vaporizes instantaneously, which substantially lowers the wetness material of the material.

What Is Wet Type Fish Feed Extruder?

Wet type fish feed extruder equipment is additionally extensively used to generate resources into state-of-the-art floating aquatic feed pellets, which appropriates for fish, catfish, shrimp, crab, pet cat, canine as well as various other animals. The raw products utilized by the damp type fish feed maker are wheat, soybean, cake and other scraps, and so on, and the puffed particles created by the wet type fish feed extruder equipment can float on the water surface area for greater than 24 hr without liquifying.

Wet type feed extruder machine are mainly made use of in huge and medium-sized feed processing plants as well as ranches. it deals with the steam boiler, the central heating boiler continuously can provide warm heavy steam to the damp type fish feed machine extrusion component.

The working principle of the damp type equipment resembles that of the dry type fish feed extruder equipment. Yet the wet type needs including water or vapor in the damp type fish feed machine to boost the moisture to twenty percent, or more than thirty percent during handling. floating pellet machine raises the temperature of the material by vapor.

Working Concept Of Wet Type Fish Feed Extruder

The wet type fish feed machine contains screw, barrel, theme, component, and so on. sawdust pellet press and also barrel are integrated in areas, and also the compression degree can be readjusted according to the type as well as demands of the extruded feed, as well as the growth degree of the extruded feed can be transformed.

When the raw material goes into the filling up tool, no added home heating is required as well as the screw is pressurized at high pressure and also high temperature to fully prepare and sanitize the raw material.

Throughout the heat treating procedure, the starch as well as fibers in the raw material increase. The product is then formed into pellets via the molding die under pressure-sealed problems.


Lastly, the high pressure produced by the normal rotation of the screw is cut by the regular high-speed turning of the front cutter, and the finished item is shrunk into an ordinary small puffed sphere at space temperature level and stress.


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