We make a mill for grinding grain with our own hands. Making a home hand mill with an electric motor

Is it possible to make a grain mill with your own hands? How is it used?

The home mill is currently used by connoisseurs of a healthy lifestyle to produce flour from various grains - corn, rye or wheat - at home. There are models that allow you to obtain other products - feed and flakes. By making products yourself, you can be confident in their quality.

Types of household mills

There are 2 types of grain mills: mechanical and electric. The former have a lower cost, the latter can cope with a larger volume of grain, but their price is more expensive.

The mechanical device is convenient in that it can be used away from electrical sources. When choosing, you should ask what diameter the millstones are: the larger they are, the easier it will be to process the grain. It is worth paying attention to the material from which the millstones are made - it could be granite or ceramic. The best material is corundum ceramics, thanks to which you can obtain the finest flour.

You should be aware that a home mill is not suitable for processing oilseeds such as sunflower.

Mill "Malyutka"

If you have the technical capabilities, skills to work with a lathe and the availability of materials and tools, a mini flour mill can be implemented independently. In any case, the necessary parts can be ordered from a turner. First of all, before making a mill, you should find the drawings. One of the simplest and most famous models is called “Baby”. It was invented by engineers from Udmurtia, and it compares favorably with other models not only in its small size and simplicity of design, but also in its wide functionality and excellent performance: in 5 minutes it can handle a whole bucket of grain.

Technical characteristics of a homemade grain mill:

weight - no more than 15 kg;
average productivity: oats, wheat and other cereals - 0.5 buckets per minute, corn - 0.2 buckets;
power consumption - 180 W;
produces 2 types of products - coarse grinding and fine grinding;
Dimensions - no more than 330x170x170 mm.

List of materials required to assemble the device:

electric motor (a motor from a broken washing machine will do);
M16 bolts for securing the engine;
angle steel is used to make an engine mount;
galvanized iron for making a box (the finished flour will go into the box);
rotor, stator;
bearings;
axle and 2 M6 nuts;
cover for the assembly;
handle made of wood or other material.

The manufacture of the mill takes place in 3 stages: you need to make a rotor, stator and frame. The first is machined from a steel blank with a thickness of 90 mm and a diameter of 120 mm in accordance with the drawing. One of the most difficult parts to manufacture is the stator. Work should be carried out as carefully and accurately as possible, following the drawings. The rotor and stator in this case will work like millstones. The frame can be made of sheet iron with a thickness of at least 8 mm.

Mill from a washing machine

An interesting flour grinder made from a washing machine. This is a simple and powerful device that works on the principle of a coffee grinder. There are no detailed instructions for making such a mill, since each washing machine has individual parameters. The main thing is to understand the meaning of the device: it is not millstones that are used, but the grain is ground by knives mounted on an axis that rotates at high speed. The device uses 2 electric motors installed oppositely, the knives rotate opposite to each other. The speed of work and the quality of the final product will depend on the sharpness of their sharpening. To make a knife, a steel sheet measuring 200×15 mm with a thickness of 1.5 mm is used. Sharpening is done as the knife rotates; you can experiment with it. After sharpening is completed, a hole is drilled in the place where the knife is attached to the axle. The knife is put on the axle and secured with 2 nuts and washers.

It is necessary to make a container from sheet iron or other material from which the grain will flow into the grinding tank. The container and tank are separated by a manually opened valve.

At the point where the finished flour exits the grain mill, a sieve and a container for collecting flour are installed. To prevent losses when the product comes out, it is recommended to use a sleeve made of rubber or plastic (it can also be made of metal).

To prevent mill failure, it is recommended to clean the millstones every week.

Many housewives believe that high-quality food can only be prepared from natural ingredients. Today, even grinding flour yourself is becoming fashionable. There are household grain mills for this. You can buy the unit or make it yourself.

A grain mill will allow you to obtain a product from raw materials, the quality of which is guaranteed by your own choice. The row machine grinds wheat, oats, corn, barley and other grain crops. The output, at the owner’s request, is flour of any type of grinding, flakes, cereals of different fractions, and mixed feed. The household mill is small in size and easily fits on the kitchen table. At the same time, its productivity allows it to cover the needs of the household. The simplest model with a low-power electric drive processes half a bucket of wheat per minute.

The grain mill operates on the basis of a rotary mechanism. It consists of:

rotor;
stator;
electric motor.

The operating principle of such a mill is simple. The grain enters the mechanism through the receiving cup. Inside it is ground with the help of a rotor and stator. The finished flour or other product is poured through the outlet pipe into the prepared container.

Homemade grain mills come in two types:

Mechanical. Grinding is carried out by rotating the handle using your hands or a simple electric drive. They have low productivity. But assembling the mill is very simple and low-cost. You will experience the pleasant process of turning grains into flour. It is similar to grinding coffee beans in a manual coffee grinder.
Electrical. Aimed at processing increased volumes of grain. These grinders are a great option for regular use at home. Models with a powerful motor can even grind mushrooms or dried fruits.

Attention! In order for the “filling” of the mill to work reliably, it is placed in a body made of hard wood such as pine, linden or beech. Wood will add pleasant notes to the aroma of flour.

Preparing to assemble a simple mechanism

The proposed model of a household mill is the author's own. It was developed by Udmurt masters. The length of the case does not exceed 32 cm. The height and width are even less. The mass of the assembled crusher is 15 kg. The mill needs a motor with low power, up to 180 W. A motor from an old washing machine or similar household appliance will do. Basic productivity - 1 bucket of corn or 2 buckets of wheat in 10 minutes. The author's assembly diagram for this mill is shown in the photo. In addition to the electric motor, you will need:

12 screws and the same number of spring washers for fixation;
a pair of steel corners measuring 45x45 mm (for motor support);
steel sheet about 8 mm thick (for the frame);
and another one, about 3 mm thick, as well as fastenings - 4 bolts;
studs with nuts;
a small iron box for the roof (reception cup) and 2 screws for it;
rotor;
stator;

protective cover for bearings;
coupling;
metal pipe;
spacer ring 0.5 mm;
pair of bearings No. 203 plus 3 bolts;
steel handle brackets 0.2 cm thick;
wooden handle.

Attention! In this mill design, bolts of the basic type - M6 - are used everywhere.

Crusher assembly: rotor manufacturing

To manufacture the rotor along with the shaft, stator and cover for the bearing compartment, you will need the ability to use a drilling and lathe. Before working on the mill, it is important to know the subtleties of the process:

The shaft is machined from round steel or M45 forging.
The basic diameter of the rotor is 105 mm with subsequent turning to 104.5 mm.

The finished part should be hardened:

heat in oven to 800 °C;
cool in oil container;
heat to 400 °C;
Set aside to cool at room temperature.

Attention! Quenching cannot be carried out using water; it will negatively affect the strength of the mill.

You can check the quality of the procedure with a file. It should not leave marks on the cutting edge of the tooth.

In the proposed scheme, the rotor rotates on a pair of radial bearings. A spacer ring is attached to the shaft between them. This will allow the bearings to move and adjust to the voltage inside the device. The mechanism will become more reliable and last longer.

Stator and other elements

Making the stator yourself is even more difficult. When turning on the machine, leave a minimum allowance in the workpiece:

make an opening in the center - 70 mm;
mark the workpiece based on a diameter of 10.5 cm, mark the locations of future openings, contours
holes at the bottom and top;
drill blind holes 2.6 cm deep;
eliminate the allowance on the wall and cut out a space for the rotor (10.5 cm);
on the reverse side, cut out a seating groove for the bearings;
think over and prepare a ring for the seal.

Advice. The stator also needs to be hardened.

Working on machines is the most difficult stage of mill assembly. Therefore, you can entrust it to professionals by ordering parts from them. The stator position is manually adjusted using clamp bolts. The quality of grinding depends on accuracy. The electrical circuit of the mill, in addition to the motor, includes a capacitor (3.8 kmF), a fuse and a switch. All contacts should be closed from direct access.

After a successful trial run, all that remains is to make the frame, secure the apparatus, and attach containers to it for receiving and exiting raw materials. The simplest grain mill is ready.

Have you tried making such a mill yourself?

Homemade mill: video

Sooner or later, everything forgotten old comes back again. This truth also applies to the home mill for grinding various types of grain crops, which in the past was in almost every home.

A household electric or mechanical mill is an important unit for lovers of a healthy lifestyle and proper nutrition. Using this device for grinding grain, you can obtain flour and cereals from barley, and other cereals, and know for sure that the product is made from high-quality raw materials.

1 Features and types of home mills

The main value of this device is that with its help you can get flour or cereal at home in a matter of minutes. Some models of appliances produce not only flour and cereals, but also flakes and.

It is difficult to determine which one is better; it all depends on the task that the owners set for it.

The flour in the mill comes in different grinds, which can be adjusted depending on need. So, for dietary nutrition, choose medium and coarse grinding, and if you need to get flour for confectionery baking, then set the mill to fine grinding. To ensure that the grinding quality is as high as possible, the grain is loaded into the hopper well dried.

A home grain mill at home is not intended for grinding spices, nuts and sunflower seeds, as the millstones of the equipment clog.

There are two types of home mills:

Mechanical device– are distinguished by a lower price and a unique feeling of turning grains into flour. If desired, hand mills can be equipped with an electric drive.
– universal equipment capable of handling grain grinding in large volumes. Models with a powerful engine have a grain fraction size regulator, and also grind dried fruits and mushrooms.

1.1 Manual grain mill: how to choose?

A manual type unit is ideally suited for cases where it will be used autonomously from the electrical network or a large amount of flour at the output is not required.

Since the mini mill handle is rotated manually, you should pay attention to the diameter of the millstones: the larger it is, the easier the grinding will be. Good grinding is not possible without balancing the millstones.

The material for making millstones is granite, ceramics or basalt. Products with a granite component are environmentally friendly, durable and reliable. In devices with millstones made of corundum ceramics, the flour is ground very finely.

The external body of manual mill models is made of hard wood (linden, pine, beech) or metal. Wooden is environmentally friendly and can impart a unique pleasant aroma to flour.

2 DIY grain mill

Before you make a mill yourself, you will have to study known drawings and the experience of craftsmen. The easiest to manufacture electric homemade grain mill was created by engineers O. Zaitsev and A. Yagovkin. This mini-device is called “Baby”. With its help, you can grind grain into coarse or fine flour, crushing it into feed for pets.

To manufacture the unit yourself, you need to have skills in working with turning and drilling equipment. If you don’t have your own experience, you will have to order three main components from the craftsmen - a rotor, a stator and a bearing cover. Next, having all the necessary parts on hand, you can assemble the entire structure together in your home workshop.

If knowledge and experience with equipment is sufficient for independent work, then technical recommendations should be taken into account:

Technical characteristics of a homemade mill:

Overall dimensions (excluding pipe and loading hopper) – 320*160*170 mm;
Electric motor power – 180 W;
Productivity – 0.5 buckets of ground wheat and other cereals, 0.2 buckets – corn.
Number of factions – 2;
The weight of the device is 1 kg.

As an option for self-production, there is also an electric roller mill. Such a device will grind up to 500 kg of grain per hour, but it is also suitable for cereals for pets and birds.

2.1 Making a grain mill (mukomoku) from scrap materials (video)

2.2 Laboratory mills LZM-1

In addition to industrial and household mills, there is a laboratory grain mill LZM-1, which grinds laboratory grain samples to determine quality indicators.

The laboratory mill LZM-1 is used at flour-grinding, grain-processing and grain-receiving enterprises, as well as in organizations involved in assessing the quality of grain crops. Used at the sample preparation stage to determine the moisture content of grains.

The LZM-1 mill is an electric motor built into the housing. A knife is attached to the motor shaft, which performs the grinding. The upper part of the body is equipped with a plastic cup into which the grain flows. The hopper is closed with a lid on a threaded connection. The device is turned on and stopped using a toggle switch. Start of form

A grain mill will allow you to obtain a product from raw materials, the quality of which is guaranteed by your own choice. The ordinary machine grinds wheat, oats, barley and other grain crops. The output, at the owner’s request, is flour of any type of grinding, flakes, cereals of different fractions, and mixed feed. The household mill is small in size and easily fits on the kitchen table. At the same time, its productivity allows it to cover the needs of the household. The simplest model with a low-power electric drive processes half a bucket of wheat per minute.

The grain mill operates on the basis of a rotary mechanism. It consists of:

rotor;
stator;
electric motor.

Homemade grain mills come in two types:

Mechanical. Grinding is carried out by rotating the handle using your hands or a simple electric drive. They have low productivity. But assembling the mill is very simple and low-cost. You will experience the pleasant process of turning grains into flour. It is similar to grinding coffee beans in a manual coffee grinder.
Electrical. Aimed at processing increased volumes of grain. These grinders are a great option for regular use at home. Models with a powerful motor can even grind mushrooms or dried fruits.

Attention! In order for the “filling” of the mill to work reliably, it is placed in a body made of hard wood such as pine, linden or beech. Wood will add pleasant notes to the aroma of flour.

Preparing to assemble a simple mechanism

12 screws and the same number of spring washers for fixation;
a pair of steel corners measuring 45x45 mm (for motor support);
steel sheet about 8 mm thick (for the frame);
and another one, about 3 mm thick, as well as fastenings - 4 bolts;
studs with nuts;
a small iron box for the roof (reception cup) and 2 screws for it;
rotor;
stator;

protective cover for bearings;
coupling;
metal pipe;
spacer ring 0.5 mm;
pair of bearings No. 203 plus 3 bolts;
steel handle brackets 0.2 cm thick;
wooden handle.

Attention! In this mill design, bolts of the basic type - M6 - are used everywhere.

Crusher assembly: rotor manufacturing

The shaft is machined from round steel or M45 forging.
The basic diameter of the rotor is 105 mm with subsequent turning to 104.5 mm.

The finished part should be hardened:

heat in oven to 800 °C;
cool in oil container;
heat to 400 °C;
Set aside to cool at room temperature.

Attention! Quenching cannot be carried out using water; it will negatively affect the strength of the mill.

You can check the quality of the procedure with a file. It should not leave marks on the cutting edge of the tooth.

Stator and other elements

Making the stator yourself is even more difficult. When turning on the machine, leave a minimum allowance in the workpiece:

make an opening in the center - 70 mm;
mark the workpiece based on a diameter of 10.5 cm, mark the locations of future openings, contours
holes at the bottom and top;
drill blind holes 2.6 cm deep;
eliminate the allowance on the wall and cut out a space for the rotor (10.5 cm);
on the reverse side, cut out a seating groove for the bearings;
think over and prepare a ring for the seal.

Advice. The stator also needs to be hardened.

After a successful trial run, all that remains is to make the frame, secure the apparatus, and attach containers to it for receiving and exiting raw materials. The simplest grain mill is ready.

Have you tried making such a mill yourself?

Homemade mill: video

All farm owners know how useful a personal grain mill is, which is easy to make with your own hands. Using this design, you can renew food supplies for rabbits or crush fruits and vegetables. This device is also useful in the home. It can be used, for example, to crush grain crops and obtain flour.

A grain mill is extremely necessary in agriculture for preparing coma for animals.

However, finding a budget mill on the agricultural market is quite difficult. A hand mill is suitable for some, but most people build a full-fledged structure with an electric motor themselves. This will require turning skills and the ability to use a welding device. It is advisable to construct the structure if there are old household appliances or their individual elements at home.

How to build a mill from a vacuum cleaner?

You should not get rid of your old vacuum cleaner, as its motor is perfect for building a small mill. You will also need to prepare the following elements:

wooden pins;
plywood sheet 1 cm thick;
a steel plate that will be used as a knife;
metal strip;
bunker;
welding device.

It is recommended to draw up a drawing of the mill, but photographs of finished units can also be used. First of all, you need to prepare the base of the device. In this case, you can use a sheet of plywood, from which you need to cut a square with sides of 30 cm. On top of the sheet you need to install the working motor from the vacuum cleaner so that the shaft protrudes down approximately 4 cm.

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Cutting knife

The main element of the mill is the knife, which will rotate at high speed and grind the grain. This device is manufactured separately. To do this, you need to prepare a steel plate 200x15x1.5 mm. The material must be strong. Additionally, you can use car holders or other similar devices.

Sharpening a knife should be done with a sharp blade. Edges should be processed in the direction of the torsion axis. The shape may vary. For example, it may look like a propeller. Another option is to simply chamfer the corners. Using sandpaper you need to adjust the horizontal and vertical appearance of the plate.

Next, in the middle part of the manufactured element, you need to drill a hole, the diameter of which corresponds to the shaft of the electric motor of the vacuum cleaner. The knife must be mounted on a threaded tail using a bushing, a nut and several washers of appropriate sizes.

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How to make the main elements of the device?

To set up a chamber in which grain will be crushed, you will need to prepare a strip of metal. The length of the element should be approximately 71 cm. The maximum width of the part is 6 cm.

The metal must be rolled into a ring, and its edges bent outward along the perimeter of the chamber. The flanges should have a maximum width of 1 cm. In the future, you can fasten them to the base and install a sieve. To properly fix the crusher on the bottom side of the chamber, you will need to mount 3 wooden pins.

You should know that a mesh with small cells is suitable for flour. For various vegetables, perforated discs are used.

Grain can be fed into the chamber from a hopper, which is attached to the base. You will need to make a small hole in it and install a damper made of a plate, with which you will adjust the grain supply.

You will definitely need to place a large bucket or basin under the sieve.

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How to make a crusher?

To construct this device you will need a rotor and a stator. A box on which an electric motor with a low power of approximately 1-2 kW is mounted is suitable as a stand for the device. It is allowed to use the device only with one phase.

The mill body is a round metal platform with a diameter of 30-34 cm. At the bottom there should be a side - the stator. The device is closed with a lid at the top.

Inside the structure there will be an electric motor and a mill. It must be secured so that the bearing of the device slides onto the shaft of the unit on which the rotor is located. During rotation, it will be able to reach speeds of up to 3000 rpm.

You need to attach a bunker on top of the structure using screws. For convenience, you can install a lid that can stop the flow of material, as well as a canvas dust sleeve through which the products will exit the device.

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How to make a stator and rotor?

The stator can be made from a metal plate. The plate must be bent, placed in a mold, and one end part must be covered with aluminum so that a container with a lower part is obtained. Element thickness – 4 mm. Next, the workpiece needs to be made ribbed. To do this, cut corners 50x20x20 mm. These elements are attached by welding to the side inside the stator. In the middle part of the device you need to make a recess for the shaft.

To construct a rotor, you need a sheet of metal with a thickness of at least 3 mm. A circle with a diameter of 320 mm should be cut out of it. Next, you need to measure 2 mm from the extreme part, draw a circle again and divide it into 32 parts. The marking area is processed with a drill so that recesses with a diameter of 3 mm are obtained. Cuts must be made from the outside to the recesses. In this case, you will need a hacksaw. At the end, the petals should be bent.

A bushing with a diameter of approximately 30 mm must be fixed in the rotor by welding in the center.

For the structure to function successfully, you will need to mount the stator on the shaft.