Floating Fish Feed Machine

The floating feed machine is mainly used in fish, shrimp, pet feed production, the production of extruded soybean flour, grain and corn raw materials treatment. Also used in pretreatment of oil bearing materialss of oil and fat industry.

The animal feed industry is currently the most industrialized industry in agriculture. It is the link that connects planting, breeding, and animal product processing industries, and plays a pivotal role in agriculture. In the feed industry, the floating feed making machine production technology for extruded aquatic feed is very different from the traditional processing technology of livestock and poultry feed.

According to the characteristics of aquatic feed varieties, large changes in raw materials, high requirements for grinding fineness and poor material fluidity, the design of the fish feed manufacturing process of fish feed production line generally adopts secondary crushing and mixing of secondary ingredients to complete the processing of powdered raw materials; the powdered raw materials are expanded, pressed, formed, and then through drying, grease spraying, cooling and screening processes to complete the extruded fish feed production process into the finished product packaging system.

There are two types of floating fish feed equipment, one is single-screw feed equipment and the other is twin-screw fish feed machine.

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  Twin-screw floating fish feed machine

  With over 20 years of experience in aqua feed and pet food extrusion. RICHI twin-screw extruder is a reliable system for a wide range of extruded feed products. The twin-screw extruder is used for producing high-quality extruded aqua feed with good water stability. Floating, slow sinking, and sinking extruded aqua feed for 1.0 to 30 mm extrudates. Special processing for small pellets with a nice appearance.

  Cpacity: 1-12T/H

  Cost: 70,000-200,000 USD

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• 

  Single-screw floating fish feed machine

  Single-screw floating fish feed machines have been used worldwide for the production of premium quality feed and food. The unique design of the screw and barrel liner can generate a higher degree of cooking. With the incorporation of numerous innovative designs, high-quality materials, and precise manufacturing processes, RICHI single screw floating fish feed extruders can perform energy-efficient extrusion cooking.

  Capacity: 0.03-4T/H

  Cost: 2800-40000 USD

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Our floating fish feed making machine has the following technical features:

• PLC+touch screen control system, easy to operate and simple;
• The main engine adopts frequency conversion control, and the screw speed can be adjusted, which is suitable for different formulas (sinking material, semi-floating material, floating material)
• The fully meshed, zero-clearance twin-screw mechanism can effectively control the shear force and ensure that the curing time of all materials in the extruding cavity is consistent with the particle expansion coefficient;
• The appearance of the particles is neat, the water resistance is good, and the diameter of the mold is φ0.6mm-20mm; the vertical gear reducer drives the arch breaking device;
• The bearing in the transmission box adopts FAG or SKF bearing to ensure long-term stable operation;
• Effectively distribute the reasonable shear force in different areas of the extrusion cavity, and effectively increase the output under the premise of ensuring high quality;
• The new fully wear-resistant alloy (38CrMoAi) screw and the inner sleeve of the bimetal expansion cavity can effectively reduce the wear and tear and ensure the long-term stable operation of the equipment under the condition of high production capacity and high quality;
• The cutting part adopts a movable cutter seat, and the blade is made of spring steel, which fits well with the template. The cutter is driven by a frequency conversion motor, which can control the length of the product;
• The turbulent discharge device discharges the material to make the extruded puffed material more beautiful;
• Use a kind of general-purpose floating fish feed extruder machine to produce floating feed and sinkable feed according to the demands. The auxiliary bulk density control system can be selected for the fish feed production of high bulk density extruded pellets.
• Customers just need to change a few fish feed extruder machine parts to produce exruded soybean, extruded corn and sheeted suckling pig feed different character feed raw materials at the same time, reducing the cost for customers.

• Increase capacity for sink feed production more than 15%
• Lower moisture in outlet 2-3%, lower the need of drying
• Smoother pellet surface
• Eliminate the need of oil to control density
• Slow and fast sinking made possible
• Customizable for different types of extruder

Extrusion processing is defined as a process in which feed materials flow through a die under one or several process conditions (such as stirring, heating, and shearing) to make the material shape and erupt and vaporize. In other words, extrusion processing combines several processes together: including mixing, curing, kneading, shearing, and forming.

In today's feed and food industry, a fish pellet extruders refers to a pelleting machine that continuously processes a product with a spiral feature (that is, a rotating screw with blades, which is very tightly installed in a cylinder to transport fluid). The extruded fish feed machine can be designed to include various operations, such as mixing, homogenizing and curing, cooling, vacuuming, forming, and cutting.

1. Raw material intake system consisting of tip hopper, mechanical conveyors, and elevators into storage bins. Raw material such as soybean meal, corn, fish meal, and other grain or powder is sieved to remove any impurity and metals.
2. Pre-grind systems are a size reduction process for raw materials that contain large particulates or grains by hammer mills. Pre-grinding material is conveyed to storage bins.
3. Batching and dosing system weighing hoppers to proportionally weigh dry ingredients by batches based on every formulation.
4. The first mixing system is used for dry material mixing to stabilize the following process.
5. Second grinding is the second grinding process that grinds the formulation into finer powder with fineness up to 80 mesh 95% pass. This step becomes optional when making big extrudates with sizes of 2.5 mm and up.
6. Second mixing system: Other sources like pre-mix, liquid, oil, and fat are now added and mixed with raw material. Too much fat added here will affect the floatability, so a post-extrusion oil coater will be used to account for the total fat content required.
7. Extrusion cooking with pre-conditioning: The floating fish feed mixer feeds down through a feed hopper into the feed screws which continuously feed the ingredients into a differential diameter conditioner (DDC). Water, steam, and/or oil are added in DDC, the retention time inside DDC is controlled by shaft speed. Two types of extrusion technology can be chosen: single screw floating fish pellet extruder or twin screw floating fish feed machine.
8. Drying system: The floating fish dryer machine will lower the moisture content of the extrudate from 20% to 28% in the dryer inlet down to 10-12%. This drying is needed to lower the water activity and achieve shelf-stable moisture for the products.
9. Oil coating system is needed to increase the nutritional value and palatability of the feed. Depending on the fat content that needs to be added, a drum coater or A vacuum coater can be chosen.
10. Cooling system lowers the temperature of the hot pellets to +3°C of room temperature by utilizing ambient air.
11. Screening system: All pellets will go through a vibration sieve to remove any irregular pellets or impurities before bagging.
12. Bagging and sealing system: Weighing cell and bagging machines bag pellets with chosen quantity ex: 20 Kg. or 25 Kg. per bag and seal the bags for storage. Finished products can also be loaded by trucks or in container bags.

floating fish Feed hammer mill

Capacity:
3-25T/H

Main Power:
30-160KW

floating fish mixing machine

Capacity:
250-2000KG

Main Power:
4-55KW

Rotary Distributor

Capacity:
30-60T/H

Main Power:
0.55KW

ultra fine powder grinder

Capacity:
1-12T/H

Main Power:
90-220KW

floating fish feed pellet machine

Capacity:
0.1-6T/H

Main Power:
22-315KW

floating fish feed Extruder machine

Capacity:
0.03-12T/H

Main Power:
0.75-355KW

floating fish feed dryer machine

Capacity:
2-12T/H

Main Power:
44.3-71.8KW

floating fish feed Pellet Cooler

Capacity:
3-25T/H

Main Power:
30-160KW

floating fish feed screening machine 

Capacity:
3-20T/H

Main Power:
1.5-5.5KW

High Square Screen

Capacity:
3-20T/H

Main Power:
1.5-5.5KW

floating fish feed Spraying Machine

Capacity:
3-15T/H

Main Power:
22KW

floating fish feed Packaging Machine

Speed:
6-12 Bags/Min

Main Power:
1.1-5 KW

Richi Machinery is one of the fish feed plant and floating fish feed machine manufacturers in China, we have rich experience of providing complete fish feed plant solutuions and fish feed making machine for various fish feed, shrimp feed, etc.

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  3T/H Floating Fish Feed Plant in Kyrgyzstan

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  5T/H Extruded Fish Feed Factory in Russia

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  8T/H Fish Feed Factory in Bangladesh

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  10T/H Aquatic Feed Mill in the Philippines

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  2*10T/H Fish Feed & 5T/H Shrimp Feed Mill in India

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  6T/H Fish Feed & 5 T/H Shrimp Feed Plant in Indonesia

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  10T/H Fish Shrimp Aqua Feed Mill in Brazil

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  5-6T/H Floating Fish Aqua Feed Plant in Iran

Which floating fish feed machine to choose? Comparison of single-screw and twin-screw extruders?

Extruded extruded pellet feed has become a symbol of high-quality feed in the aquaculture industry.

Usually aquatic feed manufacturers use investment funds to choose single-screw or twin-screw extruders. Since the price of twin-screw extruders is higher than single-screw models, they often choose lower-priced single-screw extruders.

However, due to its simple structure and insufficient technical and manufacturing levels, it can only be used to produce lower-end freshwater fish floating feed in aquatic feed processing, and is difficult to produce submersible feed and other high-end aquatic feed products.

What are the advantages of twin screws floating fish feed extruder machine and single screws floating fish feed machine? Why choose twin-screw extruder? The following content will give you the answer:

01

Raw materials have wider adaptability.

It can be adapted to the processing of high viscosity, low viscosity, high grease content, high moisture or viscosity, oily, very wet and other raw materials that will slip in the single-screw extruder.

There are fewer restrictions on the particle size of raw materials, and it can be adapted to the processing of raw materials with very wide particle sizes or from micro powder to coarse powder particles and single screw processing of raw materials with particle sizes outside the specific range.

02

The internal and external quality of the product is better.

It can achieve a very good homogeneous state and make the molecular structure of the material evenly arranged. During the extrusion process, the surface is smooth, and the product particles have high orderliness and good uniformity.

The curing and homogenizing effect is better. Usually the starch maturity degree can reach more than 95%, so that the processed aquatic feed can remain stable in the water, the product nutrients are not lost, and it is easy to digest and absorb.

03

Good mixing performance.

The good mixing performance enables the material to obtain heat in a timely manner, accelerates the maturation of the material, reduces the fluctuation of material temperature, and increases the output of extruded and puffed products.

Product diversity and adaptability are wider and higher in moisture content, and it can process particulate aquatic feed, high-oil formulas, high-adhesion products, and multi-color, sandwich, and special-shaped products.

04

Consumable parts wear less.

It is generally believed that a single screw has less wear. In fact, during the twin-screw extrusion process, due to the characteristics of stable material transportation and material flow, the wear of the material on the screw and barrel liner is smaller than that of a single screw, despite the number of screws. There is one more set, but the cost of accessories is still lower than that of a single screw.

05

Lower production costs.

Because the twin-screw model has good operational stability, it requires less start-up materials, less water vapor waste, less man-hours, high heat transfer efficiency, high yield, high kWh output index, and low cost of accessories during feed processing, its final production cost is still much lower than that of a single screw.

As the aquaculture industry develops toward scale, intensification, and specialization, the requirements for aquatic feed are becoming higher and higher. Therefore, it is necessary to pay attention to and promote the application of twin-screw extrusion technology in aquatic feed processing, and give full play to the advantages of twin-screw extrusion machines.

When customers choose an extruder model, they should not only see that a twin-screw extruder is more expensive than a single-screw extruder, but should also consider the overall cost-effectiveness and cost per ton of product produced.

In recent years, some high-quality twin-screw extruders from some countries, such as our specialty product - RCPH extruder, have technical performance that is close to or basically reached the level of twin-screw extruders from internationally renowned brands, but their price is only one-third of imported products price.

In aquatic feed processing, it can not only meet the needs of medium and high-end extruded and expanded aquatic feeds in the breeding industry, but also achieve a very high cost performance. It should be the best choice for the current aquatic feed processing industry.

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What's the difference between floating and sinking fish feed made by fish feed extruder machine?

• Spindle speed:
  Floating feed: The spindle speed is basically at full speed according to the set speed;
  Sinking feed: The spindle speed is generally about 1/3 lower than that of floating feed.
• Degree of maturation, degree of puffing:
  Floating feed: more than 95% are basically fully matured, and the degree of expansion is generally between 1.5-2.0;
  Sinking feed: About 80% matured, and the degree of puffing is generally not more than 1.3 times.
• After the material enters the fish feed extruder machine, the sinking feed will have one more pressure relief process than the floating feed, and then it will be out of the mold, the pressure in the barrel is lower:
  Floating feed: conveying forward, melting and curing, and puffing out of the mold.
  Sinking feed: conveying forward, melting and curing, pressure relief conveying, compression density out of the mold (slightly puffed).
• The amount of water added for tempering, the sinking feed should be significantly higher. The tempered moisture of the two fish feed is:
  Floating feed: about 24%;
  Sinking feed: about 30%.
• The opening rate of the template is different:
  Floating feed: Assume generally (1);
  Sinking feed: approximately (2-2.5).
• Main recipes are different:
  Floating feed: Generally, the amount of starch is 20%-25%, and the feed needs to float, mainly by the expansion of starch;
  Sinking feed: Generally around 10%, it is difficult to sink completely if it reaches 15% or more, the main function is to bond and improve water resistance.

In addition to different formulas and puffing operating parameters, expanded floating fish feed and sinking fish feed are also different in actual extruder feed making machine requirements. Sinking fish feed is produced by fish food extruder machine instead of fish feed pellet machine after granulation. It is very important that a high degree of maturation is required.

The requirements for the sinking fish feed production should be higher than those for floating water. First of all, it requires the maturation degree that is basically the same as that of the floating feed, and then it is necessary to consider reducing pressure at the discharge end (the common method is to add water to cool), so the aspect ratio of the sinking feed pellet making machine model is larger than that of the floating feed.

That is to say, a large aspect ratio can produce floating feed and sinking feed, a small aspect ratio is suitable for floating water material, and the maturation degree is low when used as a sinking feed. In fact, many small food extruder machines on the market that are mainly used for puffing cereals have insufficient maturity when producing pet food and other products. This is the reason.

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How to choose fish pellet machine and fish feed extruder machine?

Although more and more aquatic feed production plant uses power extruder floating fish feed machines, many people still use fish feed pelletizers, mainly because of cost constraints. We sell high efficiency automatic pet bird fish shrimp feed pellet making machine and also extruder for fish feed making. Which fish feed manufacturing equipment is more suitable for customer needs is the most basic standard for us to recommend fish feed machine to customers. The following share irrelevant marketing, just to objectively explain some facts.

So far, 70% of aquatic feed production line in the United States and 100% aquatic feed plant in South Korea have adopted extrusion processing technology. In China, more and more feed companies are gradually replacing traditional fish feed pellet mills with fish feed pellets extruder to produce aquatic feeds and other special feeds. In the current global aquatic feed market, because most aquatic feed manufacturers are limited by funds, they usually choose lower-priced single-screw concentrated floating fish feed machines.

However, due to their simple structure, technical level, and insufficient manufacturing level, they can only In aquatic feed manufacturing, it is used to produce lower-grade freshwater fish buoyant feed. It is difficult to produce sun fish feed and other high-end aquatic feed products. Although some very few single-screw pellet extruder machine for fish feed can meet the production of high-end sinking fish feed products, their prices are too high and there is no good price-performance ratio.

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