Extruder for feed: drawings and useful recommendations

A grain extruder is one of the most significant devices for improving the quality of grains. The need to purchase it is justified by many factors. The extruder allows you to increase the quality characteristics of grains several times. Feed processed with an extruder is more economical, easier to digest and completely safe.

This technology is used both in agriculture, helping to significantly reduce feed consumption, and in the food industry to improve the quality of the final product.

Extrusion is by far the most effective way to increase the nutritional value of grains!

Extruder for feed: drawings and useful recommendations

A simple to use feed extruder makes it possible to independently produce compound feed for animals. This device is considered an indispensable assistant both in large-scale agriculture and in small farms for raising animals and birds. In specialized stores, such equipment costs decent money. To save money, you can assemble the unit yourself; drawings and recommendations from specialists will serve as an auxiliary informant in this matter.

Extruder for feed from the manufacturer

Feed extruder KESH-1,2,3 20-30 kg per hour 220 V, 380 V feed extruder KESHExtruder for feed KE 55Feed extruder KE 75
Available in stock, hurry to buy
RUB 42,200 VAT included 80,000 rub. VAT included 100 000 R. VAT included
Grain extruder KE 110 KE 150 KE 190
130 000 R. VAT included 180 000 R. VAT included 200 000 R. VAT included
CE 320Feed extruder with gasoline engineEK 40 U
250 000 R. VAT included 130 000 R. VAT included 45,000 rub.
EK 50 EK 100EKZ 40
85,000 rub.RUB 125,00070 000 rub. VAT included
Grain (soybean) extruder EKZ 75Feed extruder (soybean) EKZ 95Grain (soybean) extruder EKZ 130 from VOM
120,000 rub. VAT included 160,000 rub. VAT included 110 000 rub. VAT included
Grain extruder EKZ 150 kg per hourFeed extruder (soybean) EKZ 170 kg per hourExtruder for grain EKZ 200 kg per hour
260,000 rub. VAT included 350,000 rub. VAT included RUB 370,000 VAT included
Extruders for feed EKZ 350 kg per hourFeed extruders EKZ 500 kg per hourExtruders for grain feed EKZ 1000 kg per hour

RUB 590,000 VAT included 910,000 rub. VAT included

Video about the operation of the KESH 1.2 screw feed extruder with a productivity of 20-30 kg per hour. (Available in stock)

Additional photos and videos of equipment can be viewed at this link

When extruded feed is used in the diets of farm animals and poultry, the following results are obtained:

  • Increase in milk yield by 20-30%,
  • Increase in weight gain up to 2 kg,
  • Reducing the mortality of young animals from diseases of the digestive system.

In the process of extrusion of the grain mixture, food is obtained that has the following qualities:

  • high level of digestibility (about 95%), which ensures increased productivity of farm animals and poultry with low consumption of raw materials, which have a high cost,
  • extruded products are practically sterile, which is preserved during storage, and this is important when feeding young farm animals,
  • extruded products have properties that help reduce many diseases of the digestive system of farm animals and poultry,
  • excellent taste characteristics of extruded feed ensure high feed acceptability by animals,
  • extruded grains have a long shelf life under normal conditions without reducing the quality of the product,
  • extruded products increase the growth of farm animals and poultry, and also reduce pathogenic microflora in their digestive system. You can order extruders for grain feed at a low price on our website.

Feed that has undergone extrusion processing is indispensable when feeding young farm animals. When using extrudate when feeding young farm animals, there is practically no mortality from gastrointestinal infections caused by pathogenic microflora that enters the digestive system of animals with food. The use of extruded grain mixtures ensures increased performance and improved product quality, which can significantly increase the profitability of agricultural production. The equipment for the production of extruded products (soybean grain extruders) of our company is of high quality and also has the following advantages:

  1. Low electrical energy consumption with high productivity of the feed extruder ensures the use of modern technologies in the manufacture of our company’s equipment,
  2. high efficiency and long service life of our company’s feed extrusion equipment,
  3. the highest quality of the main parts of extruders, ensures the use of the most modern and high-quality materials in the manufacture of our company’s equipment,
  4. the ability to extrude various mixtures of grains and other components - straw, hay, bran, fish meal, meat and bone meal, etc.,
  5. a wide range of feed extrusion plants of our production with different characteristics,
  6. low cost of our company's feed extruders.

What it is

An extruder is used to process grain crops into compound feed, which is much easier to digest in the stomach of animals. Processing is carried out using a press under a pressure of 60 atmospheres and at high temperature. The result is a product shaped like 20-30 mm corn sticks, but with a dense structure.

Apparatuses for preparing feed exist with different power ratings, and the volume of product produced depends on it. For a small farm, a device with a productivity of 25-45 kg/h is perfect - the price of such a device starts from 47 thousand rubles. But a large farm will require more powerful models capable of producing up to 1.5 tons per hour and they cost from 160 thousand rubles.

Extruder device

Due to high prices, equipment for processing products into mixed feed, even second-hand, is available to a narrow circle of consumers. But if you make an extruder for feed with your own hands, you can save a lot. Only in this case you need to study in detail the structure of the unit, the principle of operation, and also have all the necessary spare parts available.

Diagram of a large extruder

The design of the device includes the following elements:

  • frame - serves as the basis, all the details are fixed on it;
  • drive unit;
  • belt;
  • loading capacity;
  • cuff;
  • dosing screw with separate drive;
  • gearbox;
  • receiving tank;
  • motor;
  • injection screw conveyor;
  • Control block;
  • carved blade;
  • washer;
  • adjustment key.

Operating principle

In a homemade extruder, the main function is performed by the pressing mechanism. The element includes a discharge screw unit mounted in the cylinder. The blade block gives the product the shape of oblong sticks.

The functions of the electrical appliance are not limited to pressing feed. With its help, you can grind grain, carry out heat treatment and disinfection of feed, and mix different components into a single mass.

The design of the injection screw includes:

  • outer part;
  • internal;
  • heating washers;
  • outgoing auger.

Each unit is installed on a stud with a left-hand threaded part and covered with a housing made of metal material. Thanks to the keys, the revolutions flow from the main shaft to the combined auger. All components are firmly fixed to the frame.

Detailed extruder design (download)

The housing element is equipped with a hole, and the receiving part is mounted to it. The internal area is equipped with longitudinal grooves, due to which all feed components are mixed along the longitudinal side of the axis.

A pellet regulator is installed on the output part; its design includes:

  • matrix block;
  • output housing;
  • blade pressed by a spring element to the matrix block.

The rotation of the shaft with the blade is carried out by means of a rein. You can monitor the temperature using a thermocouple mounted on the frame. The grain extruder operates from electrical voltage. But there are already modifications that run on fuel.

Making an extruder for feed with your own hands

If you have the necessary material, parts and tools, you can make an extruder with your own hands. Let's look at how to get a low-performance model.

To do this you will need:

  • electric motor with a power of 2.2 kW at 3,000 rpm;
  • gears from a tractor box - parts from YuMZ would be an excellent option;
  • spring 8 mm;
  • rod with a cross section of 5 cm;
  • welding equipment.

Step-by-step work on making a feed extruder with your own hands:

  1. To obtain a cylinder, you will need to weld the tractor gears together. As a result, a spare part with a cross-section of 625 mm should be produced. Next, a spring with a diameter of 8 mm is mounted on the hydraulic cylindrical rod. Weld all the parts; if the seam is uneven, treat the area with a grinder.
  1. Using turning equipment, grind 2 axle boxes that will be used for the auger and gearbox. Weld the auger, shaft element and axleboxes into a single piece, and do not forget to insert a bearing between the last parts.

Blanks in the form of axle boxes

  1. The equipment head is mounted on the screw; it will act as a regulator of the die to which the nozzles are welded.

Workpiece on auger

  1. The auger is covered with a housing, all parts are assembled and fixed to the frame, an electric motor, belts and a starting part are also mounted. A loading container is installed on top.

In general terms, a homemade extruder is similar in external and functional characteristics to a household electric meat grinder.

VIDEO: Making a screw granulator with your own hands (Part 1)

How to use a homemade design

A grain granulator assembled with your own hands before large-scale production requires preliminary testing and verification work. Equipment should be tested in a safe environment.

Homemade extruder for the production of animal feed

  1. The first thing that needs to be checked is the quality of all connections, as well as fasteners and the maximum level of lifting to the stop.
  2. Then the device is fixed on a flat, stable surface. If the coating is shaky, the device may not perform its functions properly.
  3. Connect to a power source, start and leave for a few minutes to fully warm up the system. To prevent the elements from rotating in vain, you can check by passing a light product in the form of flour or cake from sunflower seeds through the mechanism. The correctness of the form determines whether the device has warmed up sufficiently.

When the “sausage” shape becomes smooth and dense, then the unit is ready to work with grain

  1. After the feed comes out in the desired shape, you can add the grain product. The supply of grain must be regular without stopping; the mechanism must not be allowed to function idle. You should also add raw materials in even portions so as not to load the system and create a jam.
  2. At the output, you need to adjust the feed fraction by periodically tightening the bolt and reducing the hole in the spinneret plate.
  3. At the end of the productive process, it is necessary to thoroughly clean the internal components from product residues. To do this, you do not need to disassemble the device; just pour the seed shells into the equipment. This raw material is capable of well collecting grain product particles due to the oils it contains.
  4. Reduce the rotation level to gradually cool the mechanism components. If you need to disassemble the device, you should wear heat-protective gloves, there is a risk of getting burned.

The homemade device is capable of producing up to 40 kg/h of feed. The level of performance depends entirely on the degree of motor power that is included in the design of the equipment. For personal use, such processing efficiency will be sufficient.

Mechanized processing of raw materials makes it possible to fully provide livestock with compound feed, while reducing the cost of purchasing factory-made feed. In the process of preparing feed pellets, you can use a variety of grain products with additives, enriching the diet with various microelements and macroelements, which are so lacking in regular feed.

VIDEO: Making a screw granulator with your own hands (Part 2)

Usage

Extruders are used to make animal feed. The use of this technology can significantly reduce the cost of feeding animals. In addition, when animals are switched to feeding on extruded feed, the mortality of young animals is reduced.

Feed made using extruders has the ability to prevent gastrointestinal diseases in animals and significantly improve the digestive process!

Extruders are also used in the food industry. They are used to make breakfast cereals, corn sticks, chips, crackers, baby food, and diet bread.

Twin-screw extruders are also used in the production of polymers: films for bags, polystyrene and polypropylene.

However, the most common use of an extruder is to improve the feeding qualities of grain crops. Any cereal crops, soybeans, and legumes can be used as materials for making feed.

After processing, the taste of grains is significantly improved due to the release of oils. The food acquires a pleasant aroma and bready taste. At the same time, animals eat faster.

Certain models of extruders allow you to process waste from meat and fish production. Extruders are also used to process oil-containing products before pressing. This process facilitates extraction and increases the final volume of oils obtained.

Extruder E-500

The device is intended for the production of animal feed and cleaning grains from harmful microorganisms. Also used for preparing soybeans, rapeseed, sunflower for oil extraction.

Using the device, you can process wheat, rye, corn, barley, peas, amaranth, lupine, soybeans and sunflower. A magnetic catcher of metal particles is installed in the extruder funnel, which avoids unnecessary impurities from entering the apparatus and, subsequently, into the feed.

Soybean processing capacity reaches 500 kg. per hour, when processing grains up to 300 kg. at one o'clock. In this case, the power consumption is 55 kW/hour.

Extruder Dimensions:

  • Length - 230 cm;
  • Width - 210 cm;
  • Height - 170 cm;
  • Weight - 1400 kg.

A distinctive feature of this model is the presence of a humidification unit in the working area. This guarantees a soft and uniform grain processing process, and also reduces wear on working parts.

Extruder ES-1250

Powerful unit for use in large and medium-sized farms. The productivity of this model reaches 1250 kg/hour. At the same time, the extruder is able to work around the clock. Equipped with a side feed of raw materials from the bunker directly into the working area. This eliminates operational problems that are present when processing wet grain or complex mixtures in top-feed extruders.

In addition to standard materials for extrusion (wheat, oats, millet, barley), this model is suitable for processing biowaste, minced meat and bones, flour and other waste. The device is equipped with two hydraulic cylinders, which automatically remove the housings when disassembling the working part of the extruder or replacing screws. This greatly simplifies the long and labor-intensive process of maintenance and repair, especially in emergency situations. The extruder weight is 2130 kg and the power consumption is 110 kW.

This model allows you to adjust the gaps inside the working part of the extruder, making it possible to fine-tune the device for each raw material.

Extruder PE-900 USHK

Equipped with a grain conditioning and steam processing system. This technology makes it possible to impart softness and elasticity to the processed material, which significantly reduces energy costs for processing. In addition, it helps to increase the life of the main components of the extruder.

Used for processing wheat, soybeans, barley, corn, and peas. Productivity from 1300 to 1800 kg/hour. Power consumption from 97 kW/hour. Steam consumption is approximately 100 kg/hour at a pressure of 0.4-0.6 MPa. Dimensions 280*256*255 cm. The weight of the unit is 2500 kg.

The extruder of this model is characterized by high productivity and can be used to prepare soybeans and sunflowers for oil extraction.

Technical features of extruders

The device consists of several parts, and is divided into three sections:

  1. The first is responsible for receiving raw materials,
  2. In the second, plasticization and compression occur,
  3. In the third - pressing.

Grain processing in industrial extruders occurs at high temperatures: from 110 to 180°C, and pressure above 40 atmospheres. Such conditions are necessary for the breakdown of fiber, proteins and starch contained in whole grains. The whole process takes only a few minutes, which means the split protein does not have time to coagulate.

Another advantage of extrusion is the production of clean and safe feed: almost all types of bacteria and fungi die during heat treatment.

The grain extruder is equipped with a special chamber in which the products are pressed. It also contains a shaft with screw pressing, intermediate and feeding elements. The power of the device depends on the engine and rotor, which is responsible for the operation of the cutting unit.

Description

Grain extruders are intended for the rapid production of feed, the digestibility of which is 90-95%, while the digestibility of unprocessed grain does not exceed 65%.

As a result of a short-term increase in temperature, as well as mechanical stress and artificial pressure changes, structural and chemical changes occur in the grain.

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Starch, which makes up 50% of grains and is quite difficult for animals to digest, and grain protein acquire a structure that is more easily accepted by the body.

Starch is broken down into simple sugars, complex proteins and carbohydrates are broken down into simple sugars, and fiber is converted into secondary sugars. Since the temperature effect lasts only a few seconds, beneficial vitamins and minerals are completely preserved, and fungi, pests and bacteria die.

During processing, the grain seems to explode from the inside, becoming more airy and acquiring the necessary plasticity and porosity. The volume of processed grain increases by approximately 15-20% compared to the original.

Even grains affected by insects, fungi or mold are suitable for the production of animal feed using extrusion.

After processing, feed is much easier to accept by the body, since most of the work of the stomach has already been done by the apparatus. Thanks to this, the animal spends 2 times less energy on food processing. As a result, with the same volume of fed feed, weight gain increases to 40%, milk yield to 35%, and egg production of poultry to 30%.

Types of homemade extruders

Industrial models of the device start at 45,000 rubles in price, which is not always acceptable for small farms and private farmsteads. To prepare complete and healthy feed for livestock and poultry, many farmers have learned to assemble the device themselves. There are several ways to make an extruder with your own hands:

  • For large volumes of raw materials,
  • From spare parts for agricultural machinery,
  • From a vacuum cleaner.

Before you start manufacturing, you need to find diagrams and drawings. They will help you understand the intricacies and nuances of fastening and location of the main working units.

A homemade extruder will not only be cheaper. It can be made in a size suitable for the needs of the farm, equipped with additional figured knives or several matrices.

Extruder for large volumes of feed

This device consists of:

  • Receiving bunker,
  • Motor and drive,
  • Frames,
  • Gearbox,
  • cuff,
  • cutting unit,
  • Dosing screw with drive,
  • Cylinder.

The chamber of the pressing unit is a cylinder into which the injection screw is inserted. The auger is divided into three parts: initial, middle and outlet. For greater strength, each of them is secured with a stud with a left-hand thread. The unit is covered with a casing made of steel sheet.

The frame is welded from a corner or pipe sections. The dimensions depend on the planned volumes of processed raw materials and the length of the cylinder. The pressing unit is installed on the frame and secured with several bolts. Next, we begin to manufacture the receiving hopper. Usually it is welded from steel sheets, and a hole is made in the lower part under which a tray is placed. Through it, the raw material flows from the receiver to the supercharger screw. To move the grain, longitudinal recesses are made in the lower part of the body. At the end of the screw section, a cutting unit is installed to regulate the size of the granules. It includes:

The knives are pressed against the matrix by a spring, and the shaft rotates using a drive and a driver. The finished product comes out through the holes in the matrix and is cut with knives according to the specified parameters.

The feed extruder processes grain only at high temperatures created by the operation of the motor and gearbox.

They are connected to the shaft and bow housing by a chain drive and attached to the frame. For safety, the electrical assembly can also be covered with steel cuffs. Temperature regulation is carried out by changing the position of the matrix, and control is carried out with a thermometer. Install it next to the cutting element.

Making an extruder for feed at home

Extruded pet food has appeared on the market relatively recently. However, among livestock breeders they immediately gained recognition and began to enjoy wide popularity.

The thing is that when regular feed is extruded, some indigestible grain enzymes (for example, starch) are split into those that are fully digestible by both animals and poultry (sugar and simple carbohydrates). Such food is not only more healthy, but also, due to increased taste, is much better eaten.

Almost all livestock farmers know about the benefits of extruded feed. But not everyone can afford to buy a grain extruder itself because of its very high cost. To help those who “want to, but can’t,” we offer options for making an extruder with your own hands.

What is an extruder?

An extruder is a device that allows you to turn regular feed into extruded feed. In other words, a grain mixture is poured into the unit at the entrance, and the output is a kind of granulated feed.

Depending on the design of the unit, sausages with a diameter of up to 3 cm come out of it.

Extruded feed

Any grain, even slightly spoiled grain, can be processed in an extruder. This device processes feed under high pressure up to 60 atmospheres and at high temperatures up to 180 degrees.

With this physical impact, enzymes are broken down. They release sugar and carbohydrates. In addition, the finished food is not only sweetish, but also acquires the aroma of freshly baked bread, which significantly improves both digestibility (from 60% to 90%) and palatability.

Extruded feed significantly reduces the energy consumption of animals for their consumption. Thanks to this, with less feed consumption, the farmer receives a much greater increase in muscle mass on the farm. In addition, such food completely protects poultry and animals from gastrointestinal diseases and bacteria entering the intestines.

The grain extruder can be of different capacities. Everyone chooses what they need based on personal requirements and the size of the farm. For example, the KESH grain extruder has a capacity of up to 20 kg of finished feed per hour, while the EKZ 20 grain extruder produces 1.5-2 times less product in the same time.

Extruder functions

This unit is needed not only for converting simple grain into granulated feed. Its tasks include:

  1. Heat treatment and disinfection of raw materials.
  2. Grain grinding.
    Extruder in operation
  3. Mixing different components into a single complete, balanced feed.
  4. Enzyme breakdown and stabilization.
  5. Texturization.
  6. Expansion.
  7. Profiling.

What does the unit consist of?

This unit, despite the complexity of the process being performed, has a rather simple configuration:

  • frame base, which is the base of the unit. All other components are fixed on it;
  • drive that sets the mechanism in motion;
  • bunker It is loaded with raw materials that will be processed (grain, fodder, meal, etc.);
  • a dosing screw supplies raw materials at a certain speed and in certain quantities;
  • screw blower;
  • cylinder - a housing in which raw material processing processes take place;
  • receiving chamber;
  • cutting knife;
  • die;
  • engine;
  • gearbox;
  • belt and cuff.

How it works?

All manipulations to convert grain into extruded feed take place in the pressing unit. That is, all the work is done by a forcing screw , closed by a cylindrical housing. The injection screw, in turn, consists of 3 parts (input, output and middle) and a heating washer.

There is a hole in the housing above the inlet part of the screw through which raw materials enter. There are longitudinal ribs on the inside of the body that help mix the grain to create a homogeneous mass. Due to the constant rotation of the auger, high pressure arises in the housing, which breaks the grain. After high-temperature treatment, the finished product in the form of a sausage comes out through the die.

The extruder heats up gradually. Loading grain can only be done after the mechanism has completely warmed up, otherwise it will not rupture. When starting, you can load flour or meal into the hopper.

How to make an extruder with your own hands

Making a grain extruder with your own hands is not an easy task. But difficult does not mean unrealistic.

In addition, many elements of the unit will still have to be purchased. But, if you take into account the cost of the factory device, it will cost much less.

Homemade grain extruder

And so, in order to make the unit with your own hands, you will need:

  • engine with a power of at least 2.2 kW with a rotation speed of 3000 rpm and above;
  • springs or rod, 10-12 mm in diameter for making a sleeve;
  • a rod, for example, from a hydraulic cylinder with a diameter of at least 50 mm;
  • wire, 8 mm in diameter or cone spring;
  • welding machine and lathe.

Making a granulator

Having made sure that all the necessary elements are present, we proceed to assembling the unit.

  1. Let's start with making the screw. To do this, take a shaft with a diameter of 50 mm and wind a wire with a diameter of 8 mm around it, making a kind of spring. You can take a ready-made spring, if available. The pitch between turns should gradually decrease. For example, we start with 2.4 and go up to 1.8 mm.
  2. Next, you need to weld the spring onto the shaft. After welding, carefully process the seams with a grinder. You should end up with something similar to a meat grinder screw.
  3. From a 10 mm rod or spring strips you need to weld a sleeve in which the auger will rotate. Making a sleeve from individual relief elements will increase friction and heating of the raw material during extrusion.
  4. On one side of the sleeve we weld the sleeve into which the bearings will fit.
  5. We weld guides on both sides of the sleeve on which the control flanges will be fixed.
  6. We insert the screw into the sleeve.
  7. Place the washer, install the ball bearing, and then the roller clamp bearing.
  8. We install the flange and screw the nuts onto the guides.
  9. We install a die on the other side of the auger and press it with the flange in the same way. Using the nuts on the guides, we press the flanges so that the shaft is pressed against the die.
  10. After the die, a knife is installed on the shaft to trim the granules.

Extruder made from spare parts for agricultural machinery

To make this device, you must have:

  • Electrical engine,
  • Gears from a tractor gearbox,
  • Rod, diameter 5 mm, from a hydraulic cylinder,
  • Wire, 8 mm thick,
  • Sheet metal.

To make a cylinder, several gears are welded together. The result should be a screw with a diameter of about 6.25 cm. Next, a wire is wound onto it at variable pitches. The step width gradually decreases from 2.4 cm to 2 cm. All elements are welded, and the seam is cleaned with a grinding machine.

The next stage: turning the axle boxes on a lathe. One is made for the auger, the second for the gear shaft. When the elements are ready, the parts are welded together in the following sequence: shaft, axle boxes, bearing, auger. The extruder head is attached to the latter using a die.

The assembly of the feed extruder begins with welding the frame on which the motor is mounted. It is connected to the working unit and the starting element using a chain drive. A loading hopper is placed on top: it can be either a bucket or a box welded from iron. At the opposite end, a form is installed to compress the processed mass. Passing through the die, the grain is pressed through the holes and enters the dispenser.

A grain extruder operates on the principle of a meat grinder, and the size of the granules depends on the shape and size of the holes in the die.

Do-it-yourself feed extruder from a meat grinder - Metalist's Guide

An extruder is a tool that allows you to process large volumes of cereals, fruits and vegetables, which are turned into complete feed.

In farming, such a device is indispensable, especially when feeding young animals that need feed for normal growth.

But the problem is high prices.

Not all farmers can afford to buy such a tool. As a solution, you can make your own feed extruder.

How does a feed extruder work?

Before you make an extruder with your own hands, you need to understand the principle of its operation. The operating principle of the extruder includes the following stages:

  • grains, vegetables and fruits are loaded into the tank of the device;
  • here they enter the crushing compartment, where the raw materials are subjected to high pressure (about 60 atmospheres);
  • Then the feed is processed at high temperature (in most extruders it reaches 1.5 thousand degrees);
  • the resulting composition is compacted and comes out in the form of a long rod with a thickness of 3 cm;
  • the rod is cut into smaller pieces, after which it is completely ready for use.

Operation of grain extruder

The main advantage of food processed by such a device is that it is very quickly and completely absorbed by the animal.

Under the influence of high temperatures and strong pressure, the structure of the original components breaks down into simpler components, which are individually absorbed much better.

All market compound feeds are made according to this principle.

What does a feed extruder consist of?

The structure of this device is quite simple. It is based on a frame that connects all units and ensures the stability of their operation. A hopper is installed on the frame, into which all the components of the feed are supplied, and a mechanism drive.

Next there is a dosing auger and a delivery auger, through which small portions of cereals are fed into the receiving chamber. The whole process is organized by a motor with a gearbox. When leaving the device, the finished feed rods are automatically cut off with a special knife or manually.

What is a homemade feed extruder made of?

The main snag when assembling the device at home is the need to purchase most of the parts, since the design is quite complex. First of all, an accurate drawing is needed.

You can either download it from the Internet (here you can find all imaginable models) or use ready-made instructions from the factory model. The drawing must convey as accurately as possible the dimensions of the components and all the necessary material. Once the drawing is ready and all the important points have been thought through, you can proceed to collecting materials.

Extruder device diagram

In order to make your own homemade extruder with low power, you need the following basic materials:

  • First of all, you need an electric motor . The average engine power should be 2.2 kW;
  • You will also need gears from YuMZ . If there are none, you can purchase gears from other tractor transmissions;
  • Next we purchase a gearbox ;
  • A hydraulic cylinder is also needed , or rather only a rod from it. The diameter of the rod must be at least 5 cm;
  • wire or spring with a cross-sectional diameter of 0.8 cm;
  • welding tool, lathe and other necessary tools.

Assembling a homemade extruder

First of all, let's start making a screw for the device. It consists of a cylinder and a body. To make the cylinder, gears from the tractor transmission are used. They are tightly welded together. If standard gears were used, then the diameter of the resulting part should be somewhere around 62 mm.

https://www..com/watch?v=SwmZBzoCAjI

Next we work with the body. The basis for it will be the previously prepared rod from the hydraulic cylinder.

A wire is wound around the rod in the form of a spiral (if you have a long enough spring that matches the diameter, you can use it).

The wire on the rod must be placed so that the distance between the turns of the spiral gradually decreases towards the end of the part. The initial clearance is 25 mm, after which there is a gradual decrease to 20 mm.

As soon as the wire (spring) is correctly secured, we grab it with a welding machine. The welding must be very strong, since the part will be subject to serious loads. Next, the auger is carefully inspected for irregularities and extra protrusions.

All detected defects are erased using a file or grinding machine. The screw can also be turned on a lathe, if you have one. The part will be of higher quality, and the work will be much less. In addition, the channels will be much deeper, which will simplify grain feeding.

Homemade screw for extruder

How to make a housing for an auger? Any piece of pipe of suitable diameter will be suitable for this component. The auger cylinder is placed inside it.

It must be connected to the extruder head and the gearbox that drives the screw. To do this, we turn two bushings on a lathe. Then we connect all the parts.

At the junction between the gearbox and the auger shaft, it is necessary to additionally install a bearing.

Next, a special die and several tubes are welded to the head of the device. Now the basic preparations are completed and you can proceed to the actual assembly of the mechanism.

First of all, you need to make a strong frame on which the device will be installed. There are no specific instructions here. Its design depends on the features of the homemade extruder.

The main requirements for the frame are stability, stability and strength. The first two points can be achieved by making a wider base, which, after assembly, is screwed to the floor with bolts with a larger diameter.

The frame can be assembled from corners welded together.

We install the engine and gearbox with a screw and head welded to it on the frame. The transmission of torque to the gearbox will be carried out by a belt. It connects the trigger mechanism, gearbox and electric motor.

We fix the grain hopper onto the installed auger. This part can be any metal container with a hole in the bottom. In the absence of one, an ordinary iron bucket will do.

The hopper is fixed so that the grain easily passes into the auger, where it is pushed and compressed. The grain reaches its peak of pressing in the spinneret, which produces ready-made feed.

The thickness of the resulting feed rod will depend on the diameter of the die.

We install the frame in the selected part of the room, after which we weld all parts of the device. The self-made extruder is ready.

Last checks and first launch

The resulting extruder is a fairly powerful electrical device, which requires careful checking of all components and assemblies before direct operation. For safety reasons, you should adhere to the following inspection plan:

Starting an extruder with grain

  1. The first point is to re-check the reliability of all seams and connections . If individual components are connected using bolts, tighten them as much as possible.
  2. Next comes checking the evenness of the surface on which the device is installed.
  3. The next step is to launch the mechanism. The mechanism should run idle for some time. This will allow you to warm it up before work. To check whether the extruder is warm enough, you can put flour into it. The readiness of the device for operation can be determined by the shape of the processed raw materials.
  4. If all the preparatory processes went well, you can proceed to testing with grain . Cereals should be fed into the bunker gradually and steadily. Interruptions in flow lead to negative idle, which harms the machine. But, an excess of raw materials will lead to work “through force”, which can damage the mechanisms.
  5. The finished product should be constantly twisted. This will remove gaps in the die and increase the density of the feed.
  6. Under no circumstances should you suddenly stop the device after active operation. If the required amount of grain has already been processed, add flour or sunflower seed waste to the bin again. During processing, such material collects cereal oils and unprocessed residues released during processing, which contaminate the mechanisms.
  7. Gradually reduce the engine speed until it cools down. After stopping, you need some more time for the machine to cool down, otherwise there is a risk of getting burned on the hot extruder mechanisms.

Operation of a homemade grain extruder (video)

DIY household granulator

When making a granulator with your own hands, the first thing you should do is choose a motor. A granulator made at home allows you to provide yourself with sawdust pellets for heating a private home if your boiler runs on solid fuel.

Self-made pellets are not only an environmentally friendly fuel, but also an excellent way to provide yourself with heat almost free of charge.

https://www.youtube.com/watch?v=SwmZBzoCAjI

The ability to create pellets at home, provided that there is a sawmill nearby, is an excellent way to dispose of waste during production, and, accordingly, save on firewood.

The production of granules is a process used in many industries, in particular for the processing of polymers. In large-scale production, an extruder is used to create, for example, pipes from polymers.

With the help of such a device, the production of granules is automated and quite easy. However, due to the high cost of this device, many people prefer to build it themselves.

The principle of operation of a self-made granulator is not much different from the factory version - special rollers press the crushed raw materials through the holes of the matrix.

The granulator consists of the following elements:

  • Support and housing;
  • Matrix with cone-shaped holes;
  • Toothed rollers or auger;
  • Tin sheets;
  • Reservoir for raw materials;
  • Electric motor;
  • Gearbox;
  • Shaft.

Before you start using the granulator, you should familiarize yourself with the principle of its operation by studying the instructions

It is most convenient to buy the matrix, rollers and screw separately, since their manufacture, as a rule, requires special machines and skills in handling them. These items are sold at a low price. You can also use bulletin boards.

Extruder from an old vacuum cleaner

For production you will need:

  • Housing and motor from a vacuum cleaner,
  • plywood sheet,
  • Steel blank for knives,
  • Metal disk,
  • Wooden pins,
  • Fasteners and bushings.

This device is not very powerful, so it is most often used to prepare feed for a small number of poultry, rabbits, piglets or small cattle.

How to make a grain extruder: a square is cut out of a sheet of plywood - a base with a side of 30 cm. A motor is installed on it so that the shaft is 4 cm below the base. For the manufacture of knives, steel grade STZ or higher is used, or they are machined from car holders. The thickness of the knife should not be less than 1.5 mm, and the length and width should not be less than 20 * 1.5 cm. The knife should be sharpened in the direction of the rotating axis. For greater efficiency, the workpiece is shaped like a propeller or the angle of the corner edges is changed.

To attach the cutting element, a hole is drilled on the motor axis, and a regular bushing acts as a fastening element. The working chamber is made of metal sheet. Container dimensions: 70*6 cm. The sheet is bent into the shape of a cylinder, and the upper and lower parts are bent outward. Flanges 1 cm wide should form. They are needed to secure the chamber and hold the sieve. Three pins are installed at the bottom of the cylinder.

The mesh size of the sieve determines the size of the finished granules. The smallest is used to obtain feed flour. A receiving hopper with dampers is welded above the working chamber. With its help, you can regulate the volume of supplied raw materials.

How to make an extruder with your own hands

An extruder is an indispensable device for preparing combined feed in private households. Granulates are healthier and more economical: animals do not have the opportunity to choose tasty morsels from the mixture, they eat food better, and receive more vitamins. You can make the device yourself in several ways from scrap materials.

Technical features of extruders

The device consists of several parts, and is divided into three sections:

  1. The first is responsible for receiving raw materials,
  2. In the second, plasticization and compression occur,
  3. In the third - pressing.

Grain processing in industrial extruders occurs at high temperatures: from 110 to 180°C, and pressure above 40 atmospheres. Such conditions are necessary for the breakdown of fiber, proteins and starch contained in whole grains. The whole process takes only a few minutes, which means the split protein does not have time to coagulate.

Another advantage of extrusion is the production of clean and safe feed: almost all types of bacteria and fungi die during heat treatment.

The grain extruder is equipped with a special chamber in which the products are pressed. It also contains a shaft with screw pressing, intermediate and feeding elements. The power of the device depends on the engine and rotor, which is responsible for the operation of the cutting unit.

Types of homemade extruders

Industrial models of the device start at 45,000 rubles in price, which is not always acceptable for small farms and private farmsteads. To prepare complete and healthy feed for livestock and poultry, many farmers have learned to assemble the device themselves. There are several ways to make an extruder with your own hands:

  • For large volumes of raw materials,
  • From spare parts for agricultural machinery,
  • From a vacuum cleaner.

Before you start manufacturing, you need to find diagrams and drawings. They will help you understand the intricacies and nuances of fastening and location of the main working units.

A homemade extruder will not only be cheaper. It can be made in a size suitable for the needs of the farm, equipped with additional figured knives or several matrices.

Extruder for large volumes of feed

This device consists of:

  • Receiving bunker,
  • Motor and drive,
  • Frames,
  • Gearbox,
  • cuff,
  • cutting unit,
  • Dosing screw with drive,
  • Cylinder.

The chamber of the pressing unit is a cylinder into which the injection screw is inserted. The auger is divided into three parts: initial, middle and outlet. For greater strength, each of them is secured with a stud with a left-hand thread. The unit is covered with a casing made of steel sheet.

The frame is welded from a corner or pipe sections. The dimensions depend on the planned volumes of processed raw materials and the length of the cylinder. The pressing unit is installed on the frame and secured with several bolts. Next, we begin to manufacture the receiving hopper.

Usually it is welded from steel sheets, and a hole is made in the lower part under which a tray is placed. Through it, the raw material flows from the receiver to the supercharger screw. To move the grain, longitudinal recesses are made in the lower part of the body.

At the end of the screw section, a cutting unit is installed to regulate the size of the granules. It includes:

  • bow hull,
  • Matrix,
  • Knives.

The knives are pressed against the matrix by a spring, and the shaft rotates using a drive and a driver. The finished product comes out through the holes in the matrix and is cut with knives according to the specified parameters.

The feed extruder processes grain only at high temperatures created by the operation of the motor and gearbox.

They are connected to the shaft and bow housing by a chain drive and attached to the frame. For safety, the electrical assembly can also be covered with steel cuffs. Temperature regulation is carried out by changing the position of the matrix, and control is carried out with a thermometer. Install it next to the cutting element.

Extruder made from spare parts for agricultural machinery

To make this device, you must have:

  • Electrical engine,
  • Gears from a tractor gearbox,
  • Rod, diameter 5 mm, from a hydraulic cylinder,
  • Wire, 8 mm thick,
  • Sheet metal.

To make a cylinder, several gears are welded together. The result should be a screw with a diameter of about 6.25 cm. Next, a wire is wound onto it at variable pitches. The step width gradually decreases from 2.4 cm to 2 cm. All elements are welded, and the seam is cleaned with a grinding machine.

The next stage: turning the axle boxes on a lathe. One is made for the auger, the second for the gear shaft. When the elements are ready, the parts are welded together in the following sequence: shaft, axle boxes, bearing, auger. The extruder head is attached to the latter using a die.

The assembly of the feed extruder begins with welding the frame on which the motor is mounted. It is connected to the working unit and the starting element using a chain drive.

A loading hopper is placed on top: it can be either a bucket or a box welded from iron. At the opposite end, a form is installed to compress the processed mass.

Passing through the die, the grain is pressed through the holes and enters the dispenser.

A grain extruder operates on the principle of a meat grinder, and the size of the granules depends on the shape and size of the holes in the die.

Extruder from an old vacuum cleaner

For production you will need:

  • Housing and motor from a vacuum cleaner,
  • plywood sheet,
  • Steel blank for knives,
  • Metal disk,
  • Wooden pins,
  • Fasteners and bushings.

This device is not very powerful, so it is most often used to prepare feed for a small number of poultry, rabbits, piglets or small cattle.

How to make a grain extruder: a square is cut out of a sheet of plywood - a base with a side of 30 cm. A motor is installed on it so that the shaft is 4 cm below the base.

To make knives, steel grade STZ or higher is used, or they are machined from car holders. The thickness of the knife should not be less than 1.5 mm, and the length and width should not be less than 20 * 1.5 cm. The knife should be sharpened in the direction of the rotating axis.

For greater efficiency, the workpiece is shaped like a propeller or the angle of the corner edges is changed.

To attach the cutting element, a hole is drilled on the motor axis, and a regular bushing acts as a fastening element. The working chamber is made of metal sheet. Container dimensions: 70*6 cm.

The sheet is bent into the shape of a cylinder, and the upper and lower parts are bent outward. Flanges 1 cm wide should form. They are needed to secure the chamber and hold the sieve. Three pins are installed at the bottom of the cylinder.

The mesh size of the sieve determines the size of the finished granules. The smallest is used to obtain feed flour. A receiving hopper with dampers is welded above the working chamber. With its help, you can regulate the volume of supplied raw materials.

Recommendations for use

The grain extruder is installed on a flat, flat surface. It is advisable to use the device in a room with low humidity and good ventilation. The grain is fed evenly and constantly, otherwise the compartment with the press will be overloaded. To adjust the size of the finished granules, change the sieve or tighten the matrix bolt.

Finish the work by gradually reducing the speed. After each use, the device must be disassembled and washed to avoid clogging of the working and cutting units with particles of dried food.

Recommendations for use

The grain extruder is installed on a flat, flat surface. It is advisable to use the device in a room with low humidity and good ventilation. The grain is fed evenly and constantly, otherwise the compartment with the press will be overloaded. To adjust the size of the finished granules, change the sieve or tighten the matrix bolt.

Finish the work by gradually reducing the speed. After each use, the device must be disassembled and washed to avoid clogging of the working and cutting units with particles of dried food.

Extruder operating principle

After the grain is fed into the bunker, the processes inside the apparatus take place without outside interference. Using vibration, the material is fed into the working area of ​​the unit, where it is subjected to three-phase processing.

The processed material does not need to be steamed or subjected to any additional processing!

After entering the extruder, the grain undergoes heat treatment at temperatures from 110 to 160 degrees under pressure up to 40 atmospheres. When grain is released from this compartment, the pressure drops sharply, the water contained in the cells turns into steam and increases in volume 1000 times. As a result, an explosion occurs inside the grain, due to which it swells, acquires a porous structure, increases in volume and is better moldable.

After pressing through the profiling tool, a swollen strand emerges from the extruder, having the shape of a rope. If there is a cutter, the fraction size is approximately 10-50 mm.

The extrusion process occurs in approximately 30 seconds, which ensures high productivity with minimal energy consumption. Heating and compression of grain takes place without heating elements and hydraulics, only due to an electric motor.

Three extrusion methods are used:

  • Cold forming;
  • Warm processing;
  • Hot extrusion.

No foundation is needed to install the extruder. It can be installed on any flat surface, even dirt floors!

How to make an extruder for feed with your own hands

The life of a farmer is full of worries, as many people know. You can make hard work easier with the help of modern technology or machines. The feed extruder is designed for preparing pet food of different qualities and in different quantities. But not everyone can purchase it for the farm due to its significant cost. A do-it-yourself feed extruder will significantly reduce costs and provide you with an excellent household assistant.

Is it possible to make such a unit with your own hands? Let's try to figure it out.

Do-it-yourself extruder for feed (feed) - how to make it?

An extruder is a tool that allows you to process large volumes of cereals, fruits and vegetables, which are turned into complete feed. In farming, such a device is indispensable, especially when feeding young animals that need feed for normal growth. But the problem is high prices.

Not all farmers can afford to buy such a tool. As a solution, you can make your own feed extruder.

How does a feed extruder work?

Before you make an extruder with your own hands, you need to understand the principle of its operation. The operating principle of the extruder includes the following stages:

  • grains, vegetables and fruits are loaded into the tank of the device;
  • here they enter the crushing compartment, where the raw materials are subjected to high pressure (about 60 atmospheres);
  • Then the feed is processed at high temperature (in most extruders it reaches 1.5 thousand degrees);
  • the resulting composition is compacted and comes out in the form of a long rod with a thickness of 3 cm;
  • the rod is cut into smaller pieces, after which it is completely ready for use.

Operation of grain extruder

The main advantage of food processed by such a device is that it is very quickly and completely absorbed by the animal. Under the influence of high temperatures and strong pressure, the structure of the original components breaks down into simpler components, which are individually absorbed much better. All market compound feeds are made according to this principle.

What does a feed extruder consist of?

The structure of this device is quite simple. It is based on a frame that connects all units and ensures the stability of their operation. A hopper is installed on the frame, into which all the components of the feed are supplied, and a mechanism drive.

Next there is a dosing auger and a delivery auger, through which small portions of cereals are fed into the receiving chamber. The whole process is organized by a motor with a gearbox. When leaving the device, the finished feed rods are automatically cut off with a special knife or manually.

What is a homemade feed extruder made of?

The main snag when assembling the device at home is the need to purchase most of the parts, since the design is quite complex. First of all, an accurate drawing is needed.

You can either download it from the Internet (here you can find all imaginable models) or use ready-made instructions from the factory model. The drawing must convey as accurately as possible the dimensions of the components and all the necessary material. Once the drawing is ready and all the important points have been thought through, you can proceed to collecting materials.

Extruder device diagram

In order to make your own homemade extruder with low power, you need the following basic materials:

  • First of all, you need an electric motor . The average engine power should be 2.2 kW;
  • You will also need gears from YuMZ . If there are none, you can purchase gears from other tractor transmissions;
  • Next we purchase a gearbox ;
  • A hydraulic cylinder is also needed , or rather only a rod from it. The diameter of the rod must be at least 5 cm;
  • wire or spring with a cross-sectional diameter of 0.8 cm;
  • welding tool, lathe and other necessary tools.

Assembling a homemade extruder

First of all, let's start making a screw for the device. It consists of a cylinder and a body. To make the cylinder, gears from the tractor transmission are used. They are tightly welded together. If standard gears were used, then the diameter of the resulting part should be somewhere around 62 mm.

Next we work with the body. The basis for it will be the previously prepared rod from the hydraulic cylinder.

A wire is wound around the rod in the form of a spiral (if you have a long enough spring that matches the diameter, you can use it).

The wire on the rod must be placed so that the distance between the turns of the spiral gradually decreases towards the end of the part. The initial clearance is 25 mm, after which there is a gradual decrease to 20 mm.

As soon as the wire (spring) is correctly secured, we grab it with a welding machine. The welding must be very strong, since the part will be subject to serious loads. Next, the auger is carefully inspected for irregularities and extra protrusions.

All detected defects are erased using a file or grinding machine. The screw can also be turned on a lathe, if you have one. The part will be of higher quality, and the work will be much less. In addition, the channels will be much deeper, which will simplify grain feeding.

Homemade screw for extruder

How to make a housing for an auger? Any piece of pipe of suitable diameter will be suitable for this component. The auger cylinder is placed inside it.

It must be connected to the extruder head and the gearbox that drives the screw. To do this, we turn two bushings on a lathe. Then we connect all the parts.

At the junction between the gearbox and the auger shaft, it is necessary to additionally install a bearing.

Next, a special die and several tubes are welded to the head of the device. Now the basic preparations are completed and you can proceed to the actual assembly of the mechanism.

First of all, you need to make a strong frame on which the device will be installed. There are no specific instructions here. Its design depends on the features of the homemade extruder.

The main requirements for the frame are stability, stability and strength. The first two points can be achieved by making a wider base, which, after assembly, is screwed to the floor with bolts with a larger diameter.

The frame can be assembled from corners welded together.

We install the engine and gearbox with a screw and head welded to it on the frame. The transmission of torque to the gearbox will be carried out by a belt. It connects the trigger mechanism, gearbox and electric motor.

We fix the grain hopper onto the installed auger. This part can be any metal container with a hole in the bottom. In the absence of one, an ordinary iron bucket will do.

The hopper is fixed so that the grain easily passes into the auger, where it is pushed and compressed. The grain reaches its peak of pressing in the spinneret, which produces ready-made feed.

The thickness of the resulting feed rod will depend on the diameter of the die.

We install the frame in the selected part of the room, after which we weld all parts of the device. The self-made extruder is ready.

Last checks and first launch

The resulting extruder is a fairly powerful electrical device, which requires careful checking of all components and assemblies before direct operation. For safety reasons, you should adhere to the following inspection plan:

Starting an extruder with grain

  1. The first point is to re-check the reliability of all seams and connections . If individual components are connected using bolts, tighten them as much as possible.
  2. Next comes checking the evenness of the surface on which the device is installed.
  3. The next step is to launch the mechanism. The mechanism should run idle for some time. This will allow you to warm it up before work. To check whether the extruder is warm enough, you can put flour into it. The readiness of the device for operation can be determined by the shape of the processed raw materials.
  4. If all the preparatory processes went well, you can proceed to testing with grain . Cereals should be fed into the bunker gradually and steadily. Interruptions in flow lead to negative idle, which harms the machine. But, an excess of raw materials will lead to work “through force”, which can damage the mechanisms.
  5. The finished product should be constantly twisted. This will remove gaps in the die and increase the density of the feed.
  6. Under no circumstances should you suddenly stop the device after active operation. If the required amount of grain has already been processed, add flour or sunflower seed waste to the bin again. During processing, such material collects cereal oils and unprocessed residues released during processing, which contaminate the mechanisms.
  7. Gradually reduce the engine speed until it cools down. After stopping, you need some more time for the machine to cool down, otherwise there is a risk of getting burned on the hot extruder mechanisms.

Operation of a homemade grain extruder (video)

What is an extruder used for?

Using such a unit, you can process grain into animal feed with high digestibility. Any grain, even not the first freshness, can be processed in an extruder under pressure (no more than 60 atmospheres) and exposure to high temperatures (up to 1600 degrees). The output is products resembling rods or flagella with a diameter of about 3 centimeters . The power may vary depending on the desired quantity of the final product. A productivity of 20-40 kg/hour will be enough for a small farm, and for large farms - a device capable of processing 1-1.5 tons/hour.

Of course, you can prepare the food yourself, steam or boil the grain, adding different components to it. But its quality will be completely different, and animals will need more time to digest it. You need to spend a lot of time, production will produce a lot of waste. All these problems can be avoided by using a feed extruder.

Not everyone can afford to buy such a device, even if it has been used, due to its considerable cost. Many people use their imagination, ingenuity, and their own skillful hands - and creativity begins. Some craftsmen manage to assemble good examples of a household extruder with their own hands. Every owner can try to make one, the main thing is to familiarize yourself with the device and not be afraid to experiment .

How the unit works

The extruder is composed of the following elements:

  • frame base to which the entire installation is attached;
  • drive;
  • bunkers for loading grain;
  • dosing screw and drive to it;
  • injection screw;
  • cylinder;
  • receiving chamber;
  • cutting knife;
  • control center/controller;
  • engine;
  • gearbox;
  • cuffs;
  • belt;
  • washers;
  • nuts;
  • adjusting key.

The main work is performed by the pressing unit. It is assembled from a forcing screw, which is inserted inside the collection cylinder. Using a matrix with a cutting knife, the resulting mass takes the form of sticks or flagella.

The injection screw consists of three stages:

  • entrance part;
  • middle part;
  • output screw;
  • heating washers.

All components are mounted on a stud with a left-hand thread. The part is closed with a metal casing. The keys transmit rotation from the main shaft to the composite screw. The entire structure is attached to the supporting frame using powerful bolts. The case has a window with an attached tray.

Inside the housing itself there are several longitudinal grooves that move components along the axis of the screw. A pellet regulator is located near the exit. It includes:

  • bow body;
  • matrix (disk), which regulates the process with a handle;
  • roller and knife, which are pressed to the matrix by a spring.

Rotate the shaft with the knife through the leash with the fingers. The finished extrudates exit through the nose housing and the hole adjustment dial. The disk is fixed in one position with a bolt; when the position changes, the temperature and pressure level in the apparatus will change. A thermocouple placed on the housing allows you to monitor the temperature.

It runs on electricity, but new models are appearing that run on liquid fuel. Warming up occurs gradually . At the first stage, while the extruder is heating up, cake or flour is loaded into it. The grain is fed only when the system is well heated; it breaks and turns into sticks only at high temperatures and strong pressure.

Is it possible to make an extruder yourself?

You can do many useful things with your own hands if you have a set of tools and the necessary parts on your farm. Many drawings can be found on the Internet or by reading the instructions before the factory machines. To create a unit yourself, you cannot do without:

  • electric motor (for example, 2.2 kW, 300 rpm);
  • gears from the tractor box;
  • rod from a hydraulic cylinder (diameter 50 mm);
  • wire (8 mm) or springs;
  • turning and welding machines.

After preparing the tools and workpieces, they proceed directly to the process of manufacturing the unit .

  1. To obtain a screw cylinder, two gears are welded together. The result is a part with a diameter of 62.5 mm.
  2. To make an auger, a wire is wound into three balls onto the hydraulic cylinder rod, each ball must be narrower than the previous one. Wind it as you feel comfortable. The presence of a spring greatly simplifies the task.
  3. All components should be boiled. If the seam is uneven, you need to trim it using a grinder.
  4. Turn a couple of axle boxes on a lathe (gear shaft and auger).
  5. Weld to connect the axle boxes, shaft and auger into one unit, without missing the thrust bearing between them.
  6. An experienced turner can help you make high-quality parts in a short time.
  7. The extruder head is fixed to the screw. Its adjustment will be carried out using a die to which the pipes are welded.
  8. The auger is hidden in a steel casing and is made separately.
  9. Next, we begin assembling the entire unit. The engine is mounted on the frame and connected by belts to the starting part and the extruder part. At the top there is a bunker for loading grain. Next is the loading part, into which the grain enters after passing through the bunker before entering the three-stage feeding system, gap, and press.
  10. The spinneret should compress the grain mass to the maximum and dispense the resulting product into the nasal dispenser.

A DIY feed extruder can operate continuously for a long time without consuming too much electricity. The operating principle is reminiscent of a regular meat grinder, only in the end you get not minced meat, but harder sticks. The size of the finished feed depends on how large the spinneret holes are.

Do-it-yourself granulator from a meat grinder: household for animal feed

Hello dear readers and subscribers of the blog, Andrey Noak is in touch with you! Today we will talk about how to make a granulator from a meat grinder with your own hands.

Introduction

Recently, home craftsmen have been modernizing and adapting more and more household appliances for the benefit of the household; for example, the engine from a washing machine can be attached to a lathe.

So they didn’t bypass the meat grinder. We decided to make a granulator out of it. I’ll say right away that it won’t be able to granulate anything solid, not under the right loads. Under increased load the rod will break, a household motor may not be able to withstand it, etc...

This granulator is ideal for feed:

  • Mix several herbs for rabbits;
  • Make some kind of compound feed for other pets.

What do we need

For our granulator from a meat grinder you will need:

  1. A sturdy table or workbench. You can either weld it from a corner or simply place our machine on a durable workbench;
  2. Meat grinder;
  3. Lathe;
  4. Drilling machine;
  5. A blank for making a matrix, approximately 6 cm thick. But I don’t know your feed right now and that’s why I’m talking approximately. Here, for each specific case, you need to make a matrix separately;
  6. An electric motor, perhaps from some kind of household appliance, for example, from a washing machine or from a vacuum cleaner. It is worth remembering that it will be more practical to install a 220 Volt engine, and 380 is more economical and profitable. 380 Volt engines are more powerful compared to 220 Volt analogues;
  7. Belt for connecting the meat grinder and the engine. When the meat grinder jams, the belt should slip, so there is no need to use a toothed belt;
  8. Two pulleys with a ratio of 1 to 2. We will lower the gear ratio to increase power and reduce the number of revolutions.

Step-by-step instructions for assembling a homemade granulator

The first thing we need to start with is, like any other event, creating drawings. On the drawings we describe how and what will happen.

What kind of engine will we have, how will it be located, and what do we generally need to make a mini granulator press. We draw everything out on paper so that there are fewer mismatches later.

In addition, do not forget that you will need to make a matrix, a lid and a knife for the meat grinder. To do this, you will need to take the dimensions from the mesh and make a matrix of the same diameter.

When making the matrix, you need to take into account that it should fit almost closely to the worm. Therefore, part of the matrix should be recessed.

If the ribs in the meat grinder get in the way for this operation, they should be removed.

So we begin assembling the granulator from the place where it will be located. We will need our sturdy table. We firmly attach our future press to it. Durable means bolted, for this you will need to drill holes in the legs.

After this we make the matrix. How to do it correctly is shown in the video below:

Next, you will need to sharpen a new cover for the matrix, since the old one most likely will not fit due to its increased thickness.

You need to sharpen the lid with an allowance so that if you decide to increase the thickness of the matrix, you do not need to make a new lid again.

After the lid is machined, you can weld pieces of 6 mm wire to it or cut grooves with a grinder. This way it will be easier to twist it by hand.

There are many versions of a pellet knife, and here are just a few of them:

  1. There is no need for a knife at all;
  2. You can drill a hole in the screw of the meat grinder and make a screw there, at the end of which a knife will be attached;
  3. You can weld a thin bolt onto which the knife is screwed.

Ultimately, it's up to you to decide. Our next step is to install the pulleys. Here I think there should be no problems if you are a person with a head.

The last step is to install the engine and tension the belt. We remember that you need to tension the belt so that it can slip if something happens, and the engine does not burn out at this moment.

We carry out commissioning and completion of our mechanism.

My services

If you want to build your own large-scale production or want to receive high-quality information about the production, heating or sale of pellets, then you can contact me at “SUPPORT” and always receive high-quality and up-to-date information.

I can provide advice on ENplus certification, help with the sale of your products, and help you choose equipment for pellets. And the most interesting thing is that I will even help you visit a real experimental production of pellets.

Write and we will organize everything!

Also, just recently I came out with a cool little book that explains why most companies deliver lines with defects. Which ones? And you will learn this from the book. Read more about it in the “MY BOOKS” section.

Good luck and see you again, Andrey Noak was with you!

Some useful tips

The homemade device should be thoroughly checked and tested before use.

  • First you need to check the reliability of all connections and fasteners.
  • The unit must be installed on a flat surface; any changes will disrupt the operation of the extruder.
  • Connect to the mains and let the system warm up. At this time, you can pass a small amount of flour or sunflower cake through the press, observing the shape of the mass that comes out - this way you can understand whether the system has warmed up enough.
  • Next is the grain supply. It must be constant to prevent the device from idling. Grain should be poured without excess, otherwise congestion may occur.
  • At the outlet, the fraction of the exiting product is regulated by gradually tightening the bolt and reducing the gap of the die part.
  • Once recycling is complete, the inside of the mechanism should be cleaned. Use the same flour or cake for this purpose - they will absorb the remaining grain and oil.
  • To ensure that the mechanism cools down faster, clean at minimum speed. Disassembly should be carried out only with gloves to avoid burns.

The extruder, made by hand , can process no more than 40 kg of grain per hour. For a small farm this is quite enough. Food prepared by mechanical processing provides complete nutrition for pets, reducing the cost of purchasing food and reducing the time for preparing it.

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