Manual concrete mixer made from improvised means. What and how to make a concrete mixer with your own hands

For this purpose, various cement mixtures, as the most affordable building material today. If the amount of work is small, then you can prepare a cement mortar construction mixer or in a small bucket, stirring it with a shovel.

But if you need a path in front of the house and pedestrian paths, build a stone shed or make a fence with concrete base And brick pillars, then it is advisable to have a mechanism on hand that will ensure the preparation of a cement or concrete mixture. In we will tell you how to make a concrete mixer with your own hands and what materials you will need for this.

Existing types of concrete mixers

The main types of devices for preparing cement mortar or concrete are determined by the mixing method.

He can be:

gravitational, based on the simple turning over of the constituent components of the mixture;
mechanical, which resembles gravity, but to improve mixing, additional dissecting elements are added to the design;
vibration, in which the mixture is prepared thanks to a vibrator immersed in it;
combined, where two or three mixing methods are used simultaneously.

Each type of concrete mixer has its own positive and negative qualities, which depend on the cost of materials, the complexity of production and the required level of quality of the concrete solution prepared in them.

Gravity-type mechanisms

This is the simplest manual concrete mixer with your own hands, requiring a minimum of cost and effort in production. However, the quality of the prepared mixture in such a device can be called no more than satisfactory, and it will not be possible to produce large volumes of solution in it.

And yet, with relatively small needs for mortar, given the simplicity and low cost, such a do-it-yourself concrete mixer is quite widely used when performing construction work on personal plots.

Structurally, its design is a horizontally located, closed container with an opening door through which components are supplied.

For more convenient use of a gravity-type concrete mixer, it is installed on a welded support frame.

You can use a metal can or an ordinary steel barrel as a container. After bookmarking necessary materials through the door, close it tightly, and begin to rotate the container using the handle. After mixing, the gravity type concrete mixer is turned with the door down, and ready solution falls through it into the substituted tray.

Mechanical mixers

Homemade concrete mixer with your own hands mechanical type outwardly very similar to gravitational. The main difference is inside her.

These are guide and cutting blades welded to the inner walls of the container. They direct the fall of the overturned layers, cutting them into separate parts.

In this case, the dough will be of higher quality and in a shorter time. The presence of blades changes the very principle of gravitational mixing. Therefore, the working container can be positioned not only horizontally, but also at an angle, which allows for more efficient use of the volume of the concrete mixer and makes work more convenient.

Schematic illustration of a mechanical concrete mixer.

In addition, a working container installed at an angle to the horizontal no longer requires a sealed lid, and dumping ready mixture can be done through a constantly open hole by turning the working container itself over.

Making a working container

You can also use a steel barrel as a working container, to the inner walls of which steel blades should be welded at an angle of 30-35 degrees. The height of the blades should be equal to a quarter of the diameter of the barrel. It is possible to weld the blades to a rotating shaft running inside.

A more difficult option would be to make a container own design, a kind of homemade product. To do this, you will need a piece of thin-walled steel pipe with a wall thickness of 2.5-3.5 mm, a diameter of at least 800 mm and a length of at least a meter.

The supporting frame is best made from steel profile pipes.

One side of the pipe is welded with a steel circle. On the other side, 4-6 triangular segments are cut out, which are folded to the middle and welded together. The result is a container resembling a pear. The blades are welded inside the pear, and in the center, with outside bottom, - a steel axle for subsequent fastening of the drive pulley.

They are less susceptible to bending than angle bars and are relatively lightweight. The frame design should include the installation of support wheels on which the container will rest, and a platform for installing the electric motor.

The frame itself should consist of two parts:

the support on which the entire structure will rest;
rotating, on which the working container will rest.

Support frame with handle and wheels.

The supporting and rotating parts of the frame are connected to each other through short shafts mounted in bearings or bushings.

A transverse handle must be welded to one of the shafts to allow tilting of the rotating part of the frame, and with it the working container, which will lie on the frame, resting on wheels.

Mechanical concrete mixer drive

The drive for rotating the mixer in devices of this type is extremely rare and only with a small volume of working capacity. Typically, an electric motor connected to the mixer through a belt drive is used for rotation.

It is even better to connect the electric drive through a gearbox, but a self-made concrete mixer in this case will be too expensive in terms of the necessary components. In factory designs, you can see the gear train from the motor mounted on the side of the tank, in the place largest diameter, but at self-production such a solution is feasible only theoretically.

Vibrating type concrete mixer

Vibrating devices are widely used in the industrial preparation of mortars and concrete mixtures, as they provide the best quality of the final material. They are very simple in design, and then making them yourself is quite easy.

During operation, the components begin to actively mix, and water is gradually added until the required degree of solution thickness is obtained. At the end of the process, a hatch opens at the bottom of the container and the finished mixture falls into the pan or car body.

Structurally, such a concrete mixer is a stationary container located vertically. In the upper part, the necessary components for preparing mortar or concrete are loaded, a certain amount of water is added, and a submersible vibrator is lowered into the middle.

If you already have your own submersible vibrator or you have the opportunity to purchase one, then making such a concrete mixer yourself will not be difficult. There are no moving or rotating parts, there is no need to invent a drive and rotating structure frame, but simply install the improved barrel design on the support frame and place the receiving tray below.

The main difficulty in operating such a design is the need to ensure a stable position of the vibrator. In order for the finished mixture to be obtained High Quality, it is necessary to place the vibrator strictly in the center of the volume occupied by the prepared solution and mix it all at the same time.

On industrial enterprises For this purpose, a special lowering structure is used, on which the working mechanism is fixed.

If you decide to use a steel barrel as a working container, then first of all you need to remove the bottom and lid. After this you need to make from steel sheet a truncated cone, the larger diameter of which should be equal to the diameter of the barrel, and weld an opening gate to the smaller diameter. You can buy it or make it from existing corners and a steel plate with a handle - then you will get it for free. Weld the manufactured cone to the barrel, and the working container will be ready.

Now you need to install the container on a support frame, the height of which will ensure that a receiving tray can be placed under the concrete mixer. It is best to install it with a slight slope or feed the solution into it through a receiving chute, and install the tray itself next to it.

Finally

When deciding to make a concrete mixer with your own hands, you need to understand that its manufacture will require large quantity welding and metalworking works. You must have such skills or have an assistant who can do this. It would also be a good idea to look at additional photos and video materials on the Internet, familiarizing yourself with the experience already accumulated by other people.

The work should begin with identifying the materials already available. Based on such an audit, it is necessary to make drawings or a sketch diagram of the future device. After this, purchase all the missing materials and tools, and then begin manufacturing.

No construction project of any scale is complete without a high-quality concrete mixer. The device is not cheap, but it is periodically necessary at the dacha or in the homestead, so many people think about buying it even in cases where the question of global construction is not at issue. You can get out of this situation by building a high-quality concrete mixer yourself. Today we’ll look at several options on how to make this easier and cheaper.

Concrete mixer. Why is it needed?

A homemade concrete mixer with your own hands opens up a lot of prospects for working with concrete and not only with it, but with everything construction mixtures. By spending some time building a device of any complexity level, you can get reliable design, which will help out not only its owner, but also its neighbors more than once.

It is useful for preparing mortar when laying brick, foam block, stone, and for building foundations different types, for the manufacture of decorative elements and landscape design, for example, garden paths. The price of the most inexpensive concrete mixer is about 8 thousand rubles.

Prices for concrete mixers

On average it will have 20-25 liters of batch, and the power can be from 150 W. Not the best choice even for periodic use, especially for construction. The mixing drum in such concrete mixers is belt driven by an electric motor, and this is the most simple design, which you can buy.

More advanced and productive models are in more serious price category. About 22 thousand piglets for a concrete mixer with a rim driven mixing drum. Its volume will be from 120 to 140 liters, which is approximately 80 kg of the finished mixture. It's not yet professional model, but this can already be used for not very large-scale construction. Now that we are guided by the prices and characteristics of ready-made concrete mixers, we can consider options for building it ourselves, and the design can be chosen depending on how many cubes we need in a ready-mixed concrete mixer.

Choosing a concrete mixer design

For a summer residence or personal plot everyone will be able to choose a device of such productivity that they need it, and not overpay for extra cubic meters of ground air. This is the main advantage of building a concrete mixer yourself. The second advantage is that you can use literally everything you have at hand and build a concrete mixing plant with minimal costs in terms of money and time.

That is why the choice of the device concept remains with the owner. We publish photos of the most interesting and simple devices, but you can always complicate the design.

Required design elements

Be that as it may, any concrete mixer must have the following elements in its design so that it can minimally perform its functions:

How to make a frame and select an electric motor

The frame and frame of a concrete mixer can be made of wood, but there are many questions about the practicality of such a design. As a temporary option, you can use 15x15 timber, but whether this makes sense is up to each individual to judge. The optimal option for durability and strength is a welded frame made from angle or rolled steel of any profile. We have presented several drawings in the photo as an example.

If you decide to install electric motor, as a rule, they use a motor from a household washing machine. Empirically, it has long been calculated that 25-30 revolutions per minute at the outlet of the gearbox is quite sufficient for high-quality mixing of any mixture. The electric motor from a washing machine can provide good torque, the motor is quite durable, especially if it is used in a gentle operating mode. For more productive and high-volume concrete mixers, three-phase electric motors are used.

Mandatory geometric parameters for a cylindrical type concrete mixer - the angle of inclination of the main axis is about 40-45 degrees. In this case, a folding mechanism is needed to unload the finished mixture. There are options for homemade concrete mixers made from a barrel with a horizontal mixing drum. In this case, a hinged hatch is installed in the barrel, which closes tightly during the preparation of the concrete mixture, and opens during unloading, and the finished mixture falls into a container prepared in advance.

There are many designs and types of homemade concrete mixers. The main thing when designing and building it is patience and the ability to use basic tools and welding, which is what we wish for you. Good luck to everyone!

A do-it-yourself concrete mixer is necessary for construction work. If you need to erect a building, you will need a lot of concrete. Even for wooden building A solid concrete foundation is required. In view of this, it is impossible to save on material.

DIY options

Don't know how to make a concrete mixer? There are several options. Simple option - handmade product, powered by human power. Difficult option - homemade device using an electric motor. It should be made from improvised means.

Making at home requires observing the nuances. The product must be:

Safe. It is especially important to pay attention to the gearbox powered by electric current.
Low cost, ease of production. The parts you need for production should be cheap.
Ease of use. A mechanical concrete mixer is practically no different from manual apparatus, and it is much easier to use. Decide in advance on the type of device.

Materials and tools

For a concrete mixer from a barrel manual type you will need the following materials:

channel;
card loops;
Bulgarian;
200 liter barrel;
bearing housings;
metal corners (50x50 millimeters);
welding machine;
fasteners;
flanges;
pipe.

How to make a concrete mixer with your own hands with an electric motor? Additional materials required:

electric motor;
pipe sections;
rod reinforcement;
corners.

DIY concrete mixer from a barrel (video)

Step-by-step instruction

Cut holes on the side (24x30 cm) - they are required for laying the concrete components and the hatch.
The hatch will be opened using card hinges.
Flanges are fixed to it. Inside the barrel they will prevent the walls from breaking.
The comb is made from corners. It speeds up the process of preparing the mixture. The length of the corners is 760 millimeters; they are installed inside the barrel. The pins are fixed to the corners by welding.
The elements are welded. The racks are placed near the ends of the barrel.
To give the concrete mixer stability, the supports of the racks are dug into the ground (the depth should be 30 centimeters), and the soil is compacted.
Levers are attached to both sides of the shaft. The length of the handles should ensure that the drum can be rotated with both hands.

After the concrete mixer structure is ready, it is placed on the site. It is necessary to choose a place where the concrete components will be stored. They are inserted through the hatch, then the shaft is rotated. To ensure mixing of the mixture, 15 revolutions are enough.

Important! Build-ups may appear inside the barrel. For cleaning, stones and water (1 bucket) are placed in the drum. Next, it is enough to make 25 revolutions of the shaft. The contents of the barrel are then emptied.

Engine Installation

The production of a barrel with an electric motor is carried out using a single-phase motor. Its rotation speed should be less than 40 rpm.

You can use motors from old washing machines - “Volna”, “Chaika”. They have sufficient torque. It is important to remember that the optimal rotation speed for the tub is between 20 and 30 rpm. For this, different gearboxes are used. The easiest way is to use a drive belt and pulley.

It is also allowed to use a motor from a motorcycle running on gasoline. This device is convenient to use because it does not depend on electricity. Reducing the rotation speed will help chain reducer. The engine is attached with 4 bolts to a bracket welded to the body.

Free concrete mixer plans

Important nuances

To make it convenient to use the device, it is worthwhile to provide a structure for overturning (it is made from corners) and a mechanism for transportation.
Before making it is worth taking into account individual characteristics and show design resourcefulness. This is the only way to create a product that will be convenient to use.
For quality work The rotation of the shaft must be ensured through the bearings. The maximum dose of solution is limited to 7 buckets.

Drawings: design features

It is not difficult to draw up a drawing for creating a concrete mixer. To make a simple device you will need a bucket, a drill, and a bracket. But you can also produce little concrete. However, using the presented design it will be possible to make concrete for garden path or filling the floor in the room. To carry out large volumes, an appropriate capacity is required - from 150 liters. It can be welded from sheets of metal.

The next stage is the construction of the base. It should also be reflected in the drawing. The foundation must support the weight of the machine and concrete. It must also be stable. When performing minor work, a frame made of timber with a cross-section of more than 100 millimeters is suitable. For large volumes, a metal frame should be preferred. The structure is assembled using welding.
The engine can be made from an old washing machine motor. To ensure the required rotation speed, it is worth using gearboxes. They can be made of belts and pulleys.

Even during production simple device, drawings are required. They are much easier to work with.

Operating principle of a concrete mixer (video)

To carry out construction work, you simply need a concrete mixer. You can do it yourself. The product can be manual or equipped with an electric motor. Don’t forget about the drawings; with their help, the work will be completed quickly and without errors!

To avoid losing the material, be sure to save it in your social network VKontakte, Odnoklassniki, Facebook, just click on the button below.

Making your own concrete mixer will not take you much time, and its construction will allow you to do without large investments. The advantages of this approach include:

cost savings (low cost of the product);
ease of manufacture;
availability of all components.

Disadvantages:

possible lack of necessary skills in the manufacture of such mechanisms;
missing parts will have to be purchased or asked from neighbors and friends.

The concrete mixer consists of the following parts:

container (tub);
frame;
motor with gearbox;
mechanism for moving the structure (trolley, wheels), if a mobile option is intended;
handle or steering wheel for unloading concrete.

How to make a concrete mixer with your own hands

First, you need to think about what you can make of a unit for mixing concrete, then develop a project and draw drawings of a concrete mixer.

Such a unit can be made from any suitable vessel or container (preferably large volume). The following can be used as a tub:

an ordinary barrel (plastic or metal);
large saucepan;
a round tank from an electric water heater such as “Ariston” or “Termex” or “titanium” from a train carriage.

If you do not have a container, then you will have to make the design from scratch and be patient for this. But it will still cost much less than a purchased product.

Advice:

It is better if the capacity of the tub is at least 200 liters. Then you won’t have to load it many times to prepare the required volume of concrete mixture.

Homemade concrete mixer from a barrel

Everyone knows that this unit is necessary for making concrete by mixing cement, sand and water. Of course, if you like to “play with a shovel”, you can create concrete by hand. But it's hard work. And why bother if somewhere you have, for example, an outdated barrel with a capacity of as much as 200 liters. It will make a very easy to use, simple and reliable device.

How to make a concrete mixer from a barrel

Such a device can be made in two versions:

No electric or petrol engine. The concrete mixer will be easy to rotate by hand, and anyone will be able to prepare high-quality concrete.
With motor (electric or petrol) and gearbox.

First option

The simplest concrete mixer consists of a barrel mounted on a shaft. The shaft rotates in two racks using handles attached to its ends.

Assembly steps:

Advice:

For better mixing, longitudinal or transverse partitions 10-15 cm high are welded inside the barrel.

If you want to make a mobile version, you need to install racks, for example, on a wheelbarrow or on a frame with wheels.

To create such a mechanism, a completely closed barrel is required. If the barrel does not have a lid, you need to find a suitable piece and weld the barrel.
Flanges are welded or screwed to the bottom and lid of the barrel to secure the shaft.
The shaft halves are inserted and welded into the flange holes.
Then a hole (hatch) is cut for loading and unloading concrete.
Install the hatch on the hinges and install the latch.
Racks with bearings are mounted on the shaft.
The posts are buried in the ground. In this case, distortion should be avoided.
At the end of the assembly, the handles are adjusted.

Second option

It can be built according to the first principle and install on one side instead of a handle a pulley, to which torque from the engine will be transmitted through a belt.

Or you can make a vertical version:

A rotating frame with a motor is installed on the base.
The barrel rotates on a shaft and rests on additional rollers that ensure its rotation.
The frame axis can be removed and a handle or steering wheel can be attached to it to make it easier to turn the device over.

For this more advanced version of a concrete mixer from a barrel, a specially allocated space is required. For example, a barn or garage with wiring.

If you don't have welding supplies or are not skilled in the art of welding, it makes sense to make a concrete mixer with bolts. The frame is made from metal corner. The engine (1.3 kW) can be used from an old washing machine, drill, or you can use a gasoline engine.

Assembly steps

The most loaded part of the future device is the frame. It must withstand both the weight of the concrete structure and the radial load when the tub rotates. A steel corner of 100-130 mm is used for its base.

It is advisable to weld the frame using welding machine, but if this is not possible, they make do with 27 mm bolts. It is not advisable to take bolts of a smaller diameter, taking into account the loads.

If you don’t have a 1.3 kW motor and have nowhere to get one, you can use two motors of the same type with exactly the same torque and speed. But it's dangerous.

Gearbox

To mix concrete, it is necessary to rotate the bucket at a speed of no more than 30-40 rpm. It is difficult to find an engine with such speeds, although it is possible. These low-speed engines are very rarely available for sale. Therefore, conventional high-speed motors with gearboxes are used.

Belting

The easiest way is to make a gearbox from belts and pulleys.

The calculation of such a transfer is quite simple. The ratio of the rotation speeds of the pulleys is equal to the ratio of their diameters:

But to reduce the speed, say, from 1000 to 40 rpm, it is necessary that the diameter of one of the pulleys be 25 times larger than the other (1000/40 = 25).

And if the diameter of the smaller pulley (on the motor shaft) is 5 cm, then it turns out that the larger pulley should be 5 * 25 = 125 cm, that is, more than 1 meter.

Building such a pulley is not as difficult as it seems, but it is better to make a two-link transmission and make a double calculation.

With this connection, if the diameter of each small pulley is 5 cm, for large/small pulleys it is enough to have a value of 5. 1000/5 = 200 rpm on the middle pulley, when transferring further 200/5 = 40 rpm on the pulley, attached to the barrel.

Chain transmission

The second option is to use chain transmission. This is, in principle, the same thing, just when calculating, they take the ratio of the number of teeth of the large gear to the small one:

Gear

For this type of transmission, you can use a ready-made unit - for example, a gearbox from a junk car or at least a ring gear from a Volga engine.

The crown (hardened steel disc) fits optimally. Most easy way attach it to the barrel - weld it, but if you don’t have a welding machine, you can simply screw the crown to the bottom:

Turn the barrel over.
Place the crown, making sure it is in the middle of the bottom.
Mark the marks with a core.
Remove the crown and make holes with a drill exactly according to the marks.
Attach the crown and screw it with bolts.

Final installation and assembly

To install the gearbox on the prepared frame, almost the same operations are performed as with the crown. The holes are marked, drilled and screwed with bolts of the appropriate caliber.

After installing the gearbox, a barrel is mounted on the frame, in which metal sheets or corners make shoulder blades. For example, you can screw (or weld) three corners to the barrel from the inside along the entire length (at an angle of 120 degrees) or make something similar from sheet material.

The last pulley or gear wheel of the gearbox must be replaced with a gear located on the bendix (this is part of the starter) of the Volga car. This gear will bear the main load when rotating a heavily loaded bucket.

Steering wheel

In order to unload a vertical type concrete mixer, you need to make a steering wheel. It is done in two ways:

from an old pulley or wheel;
from a section of thick-walled pipe.

The first method is quite simple. We drill 6 or 8 holes with a diameter of at least 6 mm around the circumference of the wheel, cut threads into them and screw in handles turned from metal, threaded rods or (at worst) bolts. In the latter case, a thread of at least 10 mm is cut, longer bolts are screwed in, and their heads are cut off.

The second method is almost the same and differs in that instead of a wheel there is a pipe. If its diameter is small, then some of the handles or rods are made offset.

If it is not possible to make a steering wheel or handle, proceed according to the proven “old-fashioned” method - take it out concrete mortar from the reservoir with a shovel when the mixer has completely stopped.

Homemade concrete mixer from scratch

Drawing of a homemade concrete mixer:

unit frame;
rotary device lock;
rotating device;
engine;
gearbox;
drive gear;
tub (container);
wheel;
grounding;
restrictive chain;
engine mount;
drive pulley;
belt;
driven pulley;
tension bolt.

Making a tub

If you don't have a container, you'll need to make one yourself. To do this, scans of small (rear part) and large (front part) truncated cones are drawn on a two-millimeter metal sheet. Draw a circle for the bottom.

Then everything is cut out, the cones are bent and welded. After this, all parts of the tub body are connected. The design is checked for accuracy of joints of parts and final welding is carried out.

Unit frame

For better stability of the device, the base should be made of metal, although some DIYers assemble it from wood. This is quite acceptable if the stirrer does not work for long.

For such a base, a beam of 10 x 10 cm or 15 x 15 cm is used, and all connections are made “in a tenon” with the obligatory sizing of the joints. Self-tapping screws should be used during assembly.

For long and regular operation of the device, a metal frame is best suited. This frame is designed for heavy loads. To make this frame you need a channel or angle 45 x 45 mm. The base can be welded, and if there are no welding accessories, it can be assembled with bolts or rivets.

Concrete mixer frame:

The frame, regardless of the design, is drilled to install the necessary mechanisms and accessories:

front struts;
front corner;
front bearing ring;
rear bearing ring;
rear strut;
wheel axle;
heel;
drove.
- an engine with a corresponding gearbox (if a mechanical drive is provided);
- a counterweight so that the device does not tip over when unloading concrete (in case it is necessary to tilt the barrel for this);
- buttons or switches for control.

Engine

The easiest option is to use an electric motor from a Soviet washing machine. Such motors are designed for long-term operation, have sufficient torque and do not overheat. To obtain a normal (for a concrete mixer) speed of 30 rpm, a gearbox is needed. You can take a ready-made mechanism (on gears), but it is easier to use a belt drive with pulleys.

Some craftsmen build a unit with a gasoline engine, for example, from a scooter or moped. This option does not require a power supply. This is the so-called mobile option. A mechanical transmission using a chain, which is already included in the chassis of this type of transport, is best suited for it.

Like any unit that has an engine (electric or gasoline), a concrete mixer poses a potential danger both to others and to you, regardless of whether you made it yourself or not. By the way, Gas engine much more dangerous - it can explode.

Therefore, do not neglect the instructions:

do not check the quality of the solution with a shovel or hand in a rotating bucket;
always check the insulation of the cord, because you work in a humid environment and the more dangerous it is to get an electric shock;
when working on a mobile unit, do not forget to put a stop under the wheels; vibration from rotation may cause the structure to move and move to the side, crushing someone;
check and tighten the nuts all the time threaded connections– vibration may cause them to become loose;
if cement solution gets on the skin, some people may experience an allergic reaction, so it is necessary to wear gloves or mittens;
Be careful and keep children away from operating mechanisms.

As you can see, do a simple concrete mixer not that difficult. The main thing is the desire and availability of at least basic materials and tools that will help create a useful device. If you rent it out, you can not only recoup the construction of your structure, but also get a good extra income.

Thrifty owner in his subsidiary plot tries to do everything on his own. If you belong to this category of people, then you cannot do without a concrete mixer. She will become a great assistant V household. It can also be rented out to neighbors, which will not only return the investment, but also help you earn money. There are many available on the construction market various options similar products. IN model range There are concrete mixers with capacities ranging from a few liters to hundreds of liters.

You need to approach the choice of a concrete mixer responsibly, because the quality of the mixture you get at the output will depend on its operation. All concrete mixers are divided into two types:

gravitational - mixing of the mixture is carried out due to the gravitational force of the earth;
forced - the mixture is mixed with the blades of a concrete mixer forcibly.

Structurally, these are two different concrete mixers. In domestic conditions, gravity concrete mixers are mainly used. They are cheaper, easy to operate and always satisfy their owner.

Concrete mixers with forced mixing are produced in two main types - with horizontal or vertical shaft placement. They allow you to get better quality concrete mixture. The main advantage of a forced-mixing concrete mixer is the reduction of the amount of water in the mixture to the minimum allowable for complete hydration of the cement. It is impossible to obtain such a mixture in a gravity concrete mixer.

Forced mixing concrete mixers also include vortex concrete mixers.

When choosing a concrete mixer, you should pay attention to the volume of the pear. It should be noted that during the preparation of the mixture, this volume will be filled only 60-70%, depending on the angle of inclination of the pear. Therefore, for a concrete mixer, the volume of which is 120-130 liters, the output will be 70-80 liters of the finished mixture. Of course you can install minimum angle tilting the pear, but this will lead to accelerated wear of the support bearing, increased load on the engine and its failure.

Choosing a concrete mixer - important nuances

To carry out construction work in living conditions Small 110-130 liter gravity concrete mixers work well. Simplicity of design, reliability and ease of control have made such models popular. True, not all manufacturers treat their product conscientiously. So what should you pay attention to when choosing a concrete mixer?

Engine. Most concrete mixers for private construction are equipped with single phase motor. But there are also models with a three-phase motor. If you do not have a three-phase network in your house, this concrete mixer will not suit you. The devices are equipped with motors with a power of 700-1000 W. A weaker engine will not be able to mix the mixture efficiently. There is also no point in installing a more powerful engine, since this will only lead to an increase in electricity costs.
Concrete mixer tank. Pay attention to the thickness of the tank wall, the shape and thickness of the blades. The thickness of the metal used must be at least 2 mm.
Ring gear - made of steel, cast iron and plastic. The concrete mixer crown does not require lubrication. By applying lubricant, you will only speed up its failure. Since to lubricants sand, cement and other dusty substances adhere very well Construction Materials. For reliable and durable operation, you just need to keep it clean.
You should pay attention to the design of the tank. The concrete mixer tank can be non-tipping or self-tipping. The time for unloading the solution will depend on the design of the tank. With a self-tipping tank, the unloading time is noticeably lower and is 15-30 s.
Concrete mixers, for ease of transportation, sometimes equipped with wheels. The presence of wheels is not necessary, but it reduces the time and effort spent on moving the concrete mixer.

Warranty is also a criterion for the quality of manufactured components for a concrete mixer. Because in the warranty terms you will be able to demand the replacement of failed spare parts. But there is also an indirect point. The longer the warranty, the more reliable this device is made. The manufacturer itself is ready to service its equipment for a long time, which indicates good quality This equipment is still at the purchasing stage.

How to make a concrete mixer yourself

If you like to make things, have time, spare parts and most importantly - desire, then you can make a concrete mixer yourself. Judging by the photos of concrete mixers on the Internet, there are a lot of designs of such units. They various shapes and methods of action.

An old used barrel is used to assemble a concrete mixer. The volume of the barrel must be selected based on the construction goals. The best option To build a concrete mixer with your own hands, you will need a barrel with a volume of 150-200 liters.

Feature of the concrete mixer assembled with my own hands, is its simple and reliable operation. As a homemade mixer project, forced concrete mixers are often made.

A stumbling block when building a concrete mixer yourself can be a lack of experience in constructing such things. But if you are persistent and love tinkering, then this will not be a problem. The components for the concrete mixer can be purchased at the market or at the nearest hardware store. The final price of the device will be several times lower than a purchased concrete mixer. To save money or in places where there is no electricity, the drive for the concrete mixer can be made manual.

There are quite a lot of concrete mixer drawings on the Internet, with which you can assemble a mixer for any purpose.