2021 ᐈ

Grain crusher: drawings, diagrams, dimensions, photos and videos of a homemade grain crusher. A grain crusher is an indispensable thing in the household; it is used for grinding grains of cereal crops - corn, wheat, barley, oats, for preparing dirt or feed for poultry and animals.

Households usually do not require a powerful mill; a small grain crusher is quite sufficient, which we will manufacture in this article.

There are quite a few types of grain crushers; we will look at the simplest version of a homemade grain crusher that you can make with your own hands.

To make a crusher you will need:

Design Features

A grain crusher is like a coffee grinder enlarged 10-20 times.

But the difference between one and the other machine lies in some parameters.

Unlike a coffee grinder, a grain crusher grinds grain not into a fine, powder-like powder, but into a coarse-grained substance.
The grain crusher is capable of grinding tens of kilograms of grain in one grinding session.
The more grain you need to grind, the longer the device works. For example, to satisfy the monthly demands of a chicken coop in which, say, 20 chickens lay eggs every day, more than one hundred kilograms of grain will be required. To grind 10 buckets of the same wheat or oats, it will take at least one and a half hours of operation of the unit.

The design of the grain crusher includes a number of components.

Protective housing – made of metals, plastic and/or composite.
A support that is permanently installed in a specific location or removable (portable).
Bracket adjustable with nut and bolt.
The second base has a softener in the form of a rubber “shoe”.
A pair of engines and the same number of sets of pulleys with a diameter of 6 cm. They are equipped with mortise bolts and keys.
Seals that soften vibration from motor shafts.
Knives that chop grain and grass. Both chopped ingredients are the basis of compound feed.
A funnel with a lid into which unground grain is poured. The second funnel allows the crushed raw materials to be poured into a previously prepared container.
Frog type lock.
Removable gratings that allow fractions of different sizes to pass through.
Rubberized wheel.

Each of the above components can be easily and simply installed on an old washing machine.

A grain crusher made from an activator washing machine (or automatic machine) is a device that has the highest performance and capacity compared to similar ones made from other electrical appliances.

Components selected and/or made by hand must be compatible with the overall dimensions of the final device.

No one will install knives that are several times smaller in diameter into the tank for an activator washing machine - the operation of such a device would become extremely ineffective. A volume of grain that would normally be ground in 20 minutes would take an hour or an hour and a half with reduced knives. In other words, the homemade device is physically balanced.

Similar to the device of a coffee grinder, in a grain crusher the knives, combined with the shafts of electric motors, immediately start when the device is connected to the household lighting network. They finely chop small branches, seeds and grass. The crushed raw materials fall on a sieve, which removes husks and small debris. What has been filtered passes into the container through a funnel, collecting in it.

Types of grain grinding machines

Types of machines for grinding grain
Depending on the grinding method, design and location of the working parts, there are 4 types of grain crushers:

Rotary – crushing of grain in such devices occurs due to a rotor located horizontally and moving at high speed.
Hammer crushers - the design of such grain crushers includes a rotating vertical drum and stationary hammers located in a circle, against which the grain is crushed. When grinding in this way, the finished flour is poured down and, passing through a sieve, ends up in a container placed under the deck of the housing.
Roller crushers crush grain due to 2 rollers located in one chamber, rotating towards each other. At the same time, the gap between them is so small that the incoming raw material is not simply crushed, but, due to high speed, is crushed into dust. The advantage of such devices over others is the ability to crush grain with high humidity.
Millstones are grain crushers in which grain is crushed when it gets between two discs (millstones) located with a small gap. In this case, one disk rotates at high speed, and the second is stationary.

Be sure to read:

How to make a vegetable cutter for livestock with your own hands from scrap materials

Among these varieties, the most common are rotary and hammer ones - they are more productive, reliable, and easier to repair and maintain.

What can it be made from?

Let's look at how to make different components for a grain crusher at home.

The grinding tank is made of thin (0.5-0.8 mm) stainless steel. A metal frame with a valve is fixed next to the base. The outer part of the body is made of a seamless metal pipe with a diameter of 27 cm. The wall thickness of this pipe can reach 6 mm. Inside the same pipe there is a stator, for the manufacture of which a pipe of a slightly smaller diameter was used - for example, 258 mm. In both sections of the pipe, holes are drilled to secure the loading hopper, remove crushed grain, install a grid with the required mesh size, and hangers to secure the shipping hopper. Both pipes are mounted in such a way that they are held in the grooves of the auxiliary flanges located on the side. The latter are connected to each other using several pins. One of the flanges has an internal thread for studs. The second one is drilled in several places. Both flanges also have holes drilled through them to secure the journal bearing housings and are secured to the metal frame using bolts and nuts.

The rotor is assembled on the basis of prefabricated metal pushers and is equipped with washers. If necessary, these pushers are reversed. After assembly, the rotor is checked for imbalance. If beats are still detected, the rotor is balanced immediately - parasitic vibration can shorten the service life of the entire device.
The drive shaft contains feather keys and ball bearing sets. Protective washers for ball bearings are based on the requirements of GOST 4657-82 (size 30x62x16).
The supporting frame with the table is manufactured in a welded version. The starting material is steel angle 35*35*5 mm. The valves are made of thin sheet steel.
Having prepared the necessary materials and workpieces, we begin to assemble the grain crushing device.

Drawings of a grain crusher drum.

– flange (coulter disk).
– disc hub with bearing.
- toothed drum.
– base flange.
– drum flange.
– electric motor.
– sieve plate.
– supporting arc.
– corner 45 x 45 mm.
– hole for ground grain.
– M8 bolt, nut (2 pcs.).
– electric motor shafts.

On a lathe you need to modify the brake drum, bore the drum from the inside, make the internal diameter - 285 mm, drum depth - 65 mm. You also need to cut a side hole in the drum for the sieve.

Flange modification – the flange is ground down to a diameter of 282 mm.

Schemes and drawings

The grain crusher from the washing machine contains the following components:

grain bin;
frame;
rotor;
shaft;
unloading hopper;
pulley (the requirements of paragraph 40 of GOST 20889-88 are met);
V-belt;
electric motor;
frame with table;
loading and unloading valves (valves).

Drawings of analogues made on the basis of a motor from a vacuum cleaner, electric drive of an angle grinder, drive and mechanism of a meat grinder differ little from the device made on the basis of a (semi-) automatic washing machine. The principle of operation of the device is no different - which cannot be said about the type of chopping mechanics used.

Advantages and disadvantages of a homemade chopper

The advantages of a homemade shredder include:

manufacturing, maintenance and repair of equipment will cost an order of magnitude cheaper than in the case of a branded unit;
a homemade grain crusher will differ from a branded one in its smaller size and modest weight - this will allow it to be installed and used in any corner of the outbuilding;
efficiency - a feed cutter assembled on the basis of a washing machine will consume less electricity, which makes its operation more profitable than using a factory unit.

Among the disadvantages of assembling a homemade shredder from a washing machine is the need to find suitable additional components, as well as the imperfect operation of the built-in mechanisms of the equipment. Nevertheless, by adjusting all the internal parts of the chopper, the designer will be able to ensure smooth and uninterrupted operation of the unit for many years.

Master class on making a grain crusher from a washing machine

If you have purchased a new automatic washing machine, do not rush to throw away the old type of device. It will definitely make a high-quality and productive grain crusher. You just need to develop a detailed drawing and purchase some elements.

What you need for work: prepare the essentials

The list of materials and tools will depend on the chosen scheme. Most often, only the motor from the washing machine is used. However, if desired, you can also use a tank.

You will also need:

rolled metal: plates, pipe sections;
fasteners;
sealant.

Device diagram

In terms of its design and operating principle, a grain crusher is similar to a coffee grinder. During the manufacturing process, the main attention should be paid to the knives and the hopper for receiving the finished product.

Preparation of prefabricated elements

We begin work by preparing the grain bin. We increase the diameter of the drain hole to 12 - 15 cm to ensure sufficient performance of the device. From pipe sections we make pipes of the required size and configuration for discharging crushed grain.
We cut three knives from durable steel. These should be plates 20 cm long and 1.5 - 2 mm thick. To make the device last longer, you can use a hand saw to make these elements. We drill a mounting hole in the middle of the prepared plates. We sharpen the parallel sides.
We make a filtration grid that will not allow whole grains to leave the container. Its diameter should be slightly larger than the diameter of the manufactured pipe. The holes in the filtration grid must ensure the unhindered passage of crushed grain.

Attention! The diameter of the filter grid holes should be 3 – 4 mm.

We are preparing a container for crushed grain, or we are thinking about a way to secure the bag to the outlet pipe. To prevent the formation of excessive dust during operation of the device, the receiving hopper must be sealed against the outlet pipe.

Assembly of the structure

We assemble as follows:

We install a discharge pipe into the expanded opening of the tank, ensuring sufficient tightness of the connection.
We install the knives on the motor shaft. To avoid overlapping of the blades during operation, be sure to tighten the clamping nut after each plate.
We attach a filtration grid in front of the outlet pipe. It should be located at an angle of 15 - 200 to the horizontal. Considering that the bottom of the washing machine tank is inclined to ensure complete drainage of water, there should be a right angle between the base and the installed plate. To fasten the plate we use bolts.
We coat the joint with sealant to eliminate the presence of gaps and cracks through which whole grain could mix with crushed grain;
Let's start the device. Let's check its functionality.
If you don’t have a solid washing machine, but you still have a working engine, you can also use it to make a grain crusher with your own hands.

Homemade grain crushers

A homemade grain crusher is not inferior to its store-bought counterparts. To assemble a grain crusher at home with your own hands, you need to stock up on working tools, as well as find the necessary spare parts for grain crushers. Namely:

Cutting planes or knives: can be turned from steel, or you can use ready-made blender discs,
Engine for grain crusher. The power must be no lower than 1.4 kW and no higher than 2 kW,
Grain crusher sieve: mesh size depends on grinding needs.

Before you make a grain crusher with your own hands, you need to understand some important points:

Working knives should not be tightly attached to the device - they must be regularly removed and sharpened,
To make a knife, it is better to use very strong steel,
Provide for the possibility of removing the sieve for cleaning,
Do not use a motor for a grain crusher of higher power - the energy consumption will be higher.

The high performance of the device depends on correct assembly, as well as on correct use.

The simplest model can be assembled from an ordinary household meat grinder. Making a grain crusher with your own hands from a meat grinder is simple: first, attach an electric motor to it, and widen the neck. For convenience, you can glue part of a plastic bottle to the neck. It turns out to be an analogue of an electric meat grinder. The productivity of such a grain crusher is a bucket of grain in twenty minutes.

At home, you can make a grain crusher from various parts from agricultural machines: from a tractor brake drum, a coulter disk and a container from a seeder, as well as metal plates of the cutting device of a grain harvesting machine. To assemble a grain crusher, you need to use a convenient diagram or drawing for attaching all the component parts. They can be found on the Internet in specialized forums.

A simple model of a crusher can also be made from a vacuum cleaner engine. To install the shaft, a hole is made in its base. The knife used should be about twenty centimeters wide and one and a half centimeters thick. The knife is attached directly to the shaft. Instead of a working chamber, you can use a regular metal sieve, under which you place a grain box or box.

Making your own grain crusher from a vacuum cleaner

If you don't have a washing machine, look for a vacuum cleaner. It can be used in whole or in part. It all depends on which design seems more attractive to you and what skills you have. We invite you to get acquainted with a possible implementation option.

We prepare everything necessary for work

To make a grain crusher from an old vacuum cleaner, you should prepare:

metalworking and metal-cutting tools;
sandpaper;
drill;
fastening elements;
pipe sections about 15 cm long for making an outlet pipe;
ready-made knives or metal plates for their manufacture;
a lattice with small cells, which is necessary for the manufacture of a sieve intended for sifting grain. If this is not available, you can use a metal sheet in which holes of the required diameter are drilled.

Attention! The above list is approximate.

Device diagram

The design of the device depends on which part is used. Most often, preference is given to options that involve the use of one engine. It is installed on the base, under which there is a container for receiving crushed grain.

Preparation of prefabricated elements

At the preparatory stage:

we make the base using plywood, laminate or rolled metal;
disassemble the vacuum cleaner to remove the engine;
drill a hole in the base. Its diameter must correspond to the diameter of the motor shaft;
If there are no ready-made knives, we make them from metal plates. With a thickness of about 1.5 mm, their length should not exceed 20 cm;
If there is no ready-made sieve, we make it from a metal sheet.

Assembly of the structure

The process of assembling a grain crusher from a vacuum cleaner includes a number of stages, each of which deserves special attention:

Using a nut, fix the knife on the motor shaft;
install a sieve;
We place a container under the sieve into which the crushed grain will flow.

Attention! Installing a tin box for loading grain will simplify the crushing process.

Drawings of a hammer drum of a grain crusher.

The grain crushing process is carried out by a rotating hammer drum which consists of the following elements:

– M10 locking bolt.
– Plate (2 pieces).
- Hammer.
– Washer (10x22 mm).
– Cotter pin (3 mm).
- Axis.
- Val.

Diagram of a device for balancing the hammer drum of a grain crusher.

The rotor of the grain crusher must be balanced; when rotating, the rotor must stop evenly from any position and not swing when stopped. Balancing can be done by drilling out the metal in the rotor plates to make it lighter in places where the weight of the metal is greater.

To balance the rotor, you can make a simple device as shown in the figure.

Rotor balancing diagram.

Shaft.
Rotor side plate.
Axle with cotter pin for attaching hammers.
Retaining bolt.
Metal plate.
Wooden stand for balancing device.
Wooden base of balancing device.

From the Bulgarian

A characteristic property of a manual electric grinder is the axis located perpendicular to the cutting disc. To make a grain crusher from an angle grinder (grinder), do the following.

Mark and cut a rectangular piece from thick (1 cm or more) plywood.
Cut a round hole in the cut piece of plywood - in the shape of the main structure in which the cutting disc rotated.
Secure the plywood with the bolts and metal bracket included in the kit. The axis of rotation should be directed downwards.
Make a cutter from a steel strip of suitable length, width and thickness. As in the previous case, the knives must be carefully sharpened and centered. Insufficient centering can eventually break the angle grinder gearbox.
Not far from the angle grinder mounted in the tank for crushing grain, make a hole and provide it with a funnel. Through it, uncrushed raw materials are poured into the grain crusher. The funnel with a hole is placed not under the grinder drive, but above it.
Below the drive, mount a sieve made from a used pan. It is drilled using a small drill (about 0.7-1 mm).

Assemble the grain crusher. Place it on a pallet or box. Under the lower funnel, where the crushed raw materials are poured, place, for example, a bucket. The funnel can be made from the cut off top of a plastic food bottle - the diameter of the neck is enough for the poured grain to easily and quickly pass into the grain crusher.

Materials and tools for assembling the chopper

The set of equipment necessary for assembling the crusher includes:

grinder or other electrical device for cutting metal;
socket and open-end wrenches;
drill with a set of drills;
chisel and hammer;
several pieces of fine-grained sandpaper;
clamping nut and 3 new washers.

It is important that the manufacturer has a box with nuts and washers of different diameters. The list of materials for assembling a shredder from a washing machine includes:

steel sieve with small cells - the diameter of each of them should not be less than 3 mm. If desired, the manufacturer can prepare several gratings with different cell diameters;
a piece of metal pipe with a diameter of 10 to 15 cm - necessary to ensure unimpeded exit of processed grain, branches or grass from the intake funnel to the grate;
3 identical steel knives - they can be made from metal plates 1.5 thick, 1.5 wide and 20 cm long.

All prepared tools and materials must be laid out on the work table so that they are always at hand for the manufacturer.

From a meat grinder

To make sure that the meat grinder will grind the grain, you can use resins, for example, hazelnuts or walnuts in shelled form. There is no need to make a knife that performs the functions of a cutter “from scratch” - it is already included in the kit. For the small fraction of grain, you must use the smallest standard sieve, also included in the delivery set.

In order for the grain to be milled continuously, it is necessary to install a large funnel above the grinding mechanics, for example, from a 19-liter bottle with the bottom cut off.

A hole is made in the lid of a diameter at which the poured grain will not pass through the neck faster than it is passed in crushed form through the crusher of the meat grinder. In principle, the meat grinder does not need to be modified in any way. The grain should not be too hard - not all meat grinders can handle durum wheat equally effectively. If you cannot use a meat grinder as a grain crusher, use a coffee grinder.

Features of using a homemade chopper

It will be easier to operate the crusher from the washing machine if the operator adheres to the following rules:

installing the chopper on a barrel or small tank will make using the unit more convenient;
If the cutting organs lose their original sharpness, the elements will need to be replaced. The quality of the grinding of branches or grain will indicate this - if after grinding a large amount of unprocessed material was found in the collection container, then the knives need to be sharpened or completely replaced;
When operating a shredder from a washing machine, you must constantly monitor the composition of the material being crushed. If stones, along with grain, branches or grass, fall into the intake funnel, this can lead to serious damage to the equipment. To prevent this, you need to carefully sift the material before pouring it into the tank.

If wet grain will often be poured into the intake funnel of the chopper, then it is best to pre-coat the walls of the container and the cutting knives with a primer and several layers of paint. This will protect the homemade chopper from corrosion.

How to make a crusher mill with your own hands

Making a grain crusher with your own hands is not that difficult. To do this, you need to have on hand a motor from an old household appliance, for example, a vacuum cleaner or washing machine.

In addition, you must have some locksmith skills. By the way, when assembling such equipment with your own hands, you need to remember the safety rules. Since all engines operate on electricity, it is necessary to take all measures to reduce the traumatic risk of the assembled product.

We must not forget that fast-rotating parts are used as a working body, which can cause injury to the person working on it.

Structure of a grain crusher, design features of the machine

Manufacturers put a variety of crushers on the market, with different characteristics, productivity, etc. Most of this equipment is easy to maintain and does not take up much space. As noted above, in practice crushers are used that use rotary or hammer principles in their operation.

Rotary machines have a drum with knives. In hammer mills, hammers are used as a working tool, which are loaded inside the drum.

By the way, there is equipment that uses compressed air as an energy source. The processed raw material moves inside the drum along with air. As a result of this, the quality of the resulting product increases dramatically. In addition, in this, and in many other designs, magnets are used that select metal particles that get into the mixture.

Crushers for home use

“Vikhr ZD-350K”
Among factory-made grain crushers, the following models are most suitable for private farms:

"Whirlwind ZD-350K";
"Zubr-2";
"Three Little Pigs 350";
"Farmer ISE-05";
"Cyclone-350";
"Bison 400";
"NIVA IZ-250".

"Zubr-2"

Important! The average cost of a factory installation, depending on power, performance and brand, ranges from 2000-2300 to 6200 rubles. Assembling a homemade device if you have an unnecessary working washing machine, an old vacuum cleaner, or an angle grinder will cost only 500-1000 rubles.

"NIVA IZ-250"

How to choose a grain crusher: expert advice

Choosing the right model

How should you choose a crusher that will meet all consumer requirements? To do this, you need to know the answers to some questions:

Performance. A high grinding speed ensures high productivity in obtaining finished products, and accordingly, the use of such an installation will be highly efficient. Such installations can be considered the optimal solution for large farms. For home work, an installation with a low or medium processing speed of raw materials is sufficient.
Price. The equipment must not only ensure high quality of the resulting product, but also generate certain income to recoup the investments made in this equipment.
Grinding degree. The device must be selected based on the type of livestock and poultry the produced feed will be intended for.
Drive station power. The greater the power of the installed power plant, the greater the productivity of the installation. It must be taken into account that the higher the engine power, the higher the energy costs.
The company is a manufacturer. Undoubtedly, there are world-famous companies that produce shredders, but you need to think three times about how quickly the funds invested in brands will pay off.

When choosing a model, you must be guided by the characteristics specified by the manufacturer.

Rating of grain crushers by quality

There are a wide variety of shredders on the market, many of which are popular for their reliability and performance. We have compiled the TOP 5 grain crushers that are most often used in various private farms. Our rating includes:

5th place – Farmer. This model differs from most market analogues in its extremely high strength and durability. Maximum simplicity of design, minimum plastic parts and increased engine power - all this allows the chopper to serve for 5 years or more;
4th place – Cyclone IZKB-2. This modification is capable of processing not only different types of grains, but also prepared root vegetables. The crusher equipment includes a durable 1.8 kW electric motor, a knife drum and a reliable metal body;

3rd place – Clever Don . This chopper differs from its analogues in its increased power, which allows it to produce up to 200 kg of flour in just an hour of operation. The crusher is equipped with 3 sieves designed to adjust the grinding amount;
2nd place – Zubr-2. One of the most popular grinders is designed for use in small and medium-sized animal farms. The unit is equipped with a reliable electric motor, two replaceable sieves and a durable lock;

1st place – Zubrenok-Mais. The productivity of this unit is 140 kg of grain per 1 hour of operation. This is much more than any Chinese crusher can grind.

Our review included only household crushers from the low and medium price segment. Despite their modest size, each of them demonstrates maximum performance and impressive efficiency.

Crusher balancing process

Most equipment that uses rotating components as a working tool undergoes a balancing procedure. This work can be done either independently or with the help of invited specialists.

When balancing, the following sets of work must be performed:

identifying the causes of vibrations and eliminating them;
monitoring the condition of equipment in terms of vibration;
balancing shafts in existing bearings;

Why is balancing necessary? The answer lies on the surface. The thing is that the presence of excessive vibration leads to failure of the bearing units, and as a result, everything can end very sadly.

Grain crusher performance

The process of functioning of a rotary chopper involves the movement of the cutting knife. It is needed to crush the masses that should be fed inside the receiving hopper.

The hammer preparation can grind grain efficiently using hammers that are attached to a strong base.

Products obtained using a hammer machine will be considered the most effective. This can be achieved with the help of a high amplitude of movement of the hammers, which are capable of crushing even individual grains of grain.
At the same time, the impact crusher can consume much less electricity and has a high productivity factor.
If the farm has a large number of adult livestock and poultry species, it would be best to buy an impact crusher. But in the case when a farmer breeds smaller poultry and a large number of young livestock for trade, then the optimal choice in this case will be in favor of hammer grinding of grain.
It is imperative to test a device that you have produced yourself. It is worth remembering that the grinder engine requires regular lubrication, otherwise it will quickly break due to abrasion of the main elements in the device.

Which grain crusher is better - hammer or rotary?

To find out which type of cutting elements in household shredders is better, you need to consider the pros and cons of the two types of equipment. The advantages of an impact crusher include:

high reliability and impressive performance;
simplicity of factory design;
Possibility of setting settings with grinding adjustment.

Among the disadvantages of rotary units, one can highlight only vulnerability to foreign solid objects. If a stone gets inside the camera, it may cause serious damage to the equipment.

A hammer grinder for household use has its own advantages:

better grinding quality;
reduced energy costs;
ease of maintenance.

The only disadvantage of such a crusher is its insufficient productivity. This is due to the fact that hammer equipment operates much slower than rotary units.

Recommendations

To ensure that the shredder's performance is high enough, follow the advice of experts.

Insulate the motor using an additional casing made from, for example, a large tin can. The fact is that the motor gets into a dusty environment - this dust is formed when grinding dry grain. The engine may become clogged with deposits, and its operation will slow down - a noticeable part of its useful power will be lost.
Do not use the grain crusher at maximum speed, trying to grind tons of grain in one go. A large farm with large numbers of farm animals will require two or more grain crushers. It is better not to skimp on equipment so that it does not break down after a few days, but works for a number of years.
Use grain collection containers with as large a capacity as possible.
Clean and lubricate the mechanics every three months or six months. Regular maintenance - and scheduled replacement - require bearings, without which no electric motor would work.
The listed measures will allow the user to process large volumes of grain without investing extra in repairs and without stopping urgent work.

Do-it-yourself hammer crusher for grain – Special equipment

The grain crusher is a universal unit for grinding small and large grain crops for feeding pets.

Using a grain crusher, you can significantly save energy and time, and the feed that is processed with its help can be mixed with additives that improve the diet of animals.

In our article we will look at how to make a grain crusher with your own hands for use in the household. The main parameters of these devices will also be discussed.

Design features of the grain crusher

Before starting to review the device, it is necessary to thoroughly understand the purposes for which this mechanism is needed.

With the help of a grain crusher, feed crops are crushed, making them attractive to animals.

After all, small foods will be much better absorbed by your pets, and this will contribute to faster weight gain, and the animal also receives all the necessary vitamins and minerals.

The chopper has a very simple design; it is based on a durable body, which is also a chamber for grain.

The design also contains cutting components that are driven by an electric motor. An electric motor is usually used as it is much easier to install on the structure.

But to make it more convenient to use the grain crusher, you can equip it with handles. Some models have removable wheels.

Types of grain crushers for home use

Any household grain crushers are small in size and simple. But despite this, all models have quite high performance.

Therefore, the device allows you to process large batches of grain in a short period of time.

If we divide according to the principle of functioning, we can distinguish the following:

Impact crushers. Such units have working chambers made of durable metals. Therefore, the machine’s reliability is very high. The elements that are crushed hit the walls of the bunker, with the help of this the grain is crushed. Please note that the crushing components hit the walls until the grain is crushed.
Disc machines - in such designs, the crushing knives are fixed on the shaft using disks.
Hammer machines - in the design, the grinding elements are mounted on a rotor, which rotates in the receiving hopper.
Roller crushers - they can both crush and grind grains. The main element in the design is grooved rollers. With their help, it is possible to efficiently process exclusively wet grain. Therefore, if it is dry, it must be moistened in water in advance.

Classification by drive type

Below we will look at how to make a simple grain crusher from a grinder with your own hands.

In general, crushers that are used in everyday life can be divided according to the type of drive:

Manual crushers are the simplest devices; for this device to work, it is necessary to use force and also spend a lot of time. Using such units, you can grind grain into a coarse product. It is suitable exclusively for adult animals, in particular bulls or cows.
Pneumatic devices are used to process corn and other small grains. Using such a device, you can very quickly grind food into small fractions, so that you can subsequently mix it into food for feeding small animals and poultry. Features high performance. You can make such a home grain crusher with your own hands quite quickly, with minimal investment.
Electric grain crushers are also distinguished by their simple design and fairly high productivity. The dimensions of the device are not very large; it can be used both at home and on farms.

Rotary or hammer grain crusher: which is better?

Now let’s talk about how to make a grain crusher with your own hands and what type of design is best to choose.

If you have a question about which crusher is better, you need to carefully study the design differences between these units. The rotary chopper works by moving the cutting blade.

With its help, the mass fed into the receiving hopper is crushed.

Hammer units crush raw materials using hammers mounted on a solid base.