Do-it-yourself machine for concrete blocks, drawings. Making homemade machines for the production of cinder blocks. Video

Construction country houses is very popular. People are increasingly using stone products as building materials. They create an alternative to expensive and less durable wood. Today, when building a private house, you can use not only brick, but also various blocks, which are cheaper.

During construction, you can significantly save money on purchasing ready-made blocks if you start producing them yourself. In addition, after building the house, all the equipment necessary for production will remain, which can be used for a small private business.

Simple block making equipment

Purchase of a machine for producing blocks during construction country house may turn out to be an unaffordable luxury. In this case, it is possible to make blocks outside during the spring-summer season, when above-zero temperatures are established. Can be used for such production collapsible structures without vibration mechanism.

For walls homemade design use wood or sheets of metal. The structure is made taking into account the size of the cells for the blocks, which, according to the standard, are 40−20−20 cm. For the manufacture of semi-hollow products, champagne or bottles are used metal cylinders. Cylinders are manufactured with a diameter of at least 8 cm.

Manufacturing sequence

The process of manufacturing blocks on such equipment is as follows:

The finished structure is assembled from the walls.
Cylinders or bottles are installed inside each compartment.
All internal sides the structures together with the cylinders are treated with oil.
A soft solution is prepared and poured into molds.
A few hours later, the form is disassembled.
The blocks are left on outdoors for drying.

A more complex model of a cinder block mechanism with a vibration device can be made independently if all the components are available on the farm.

A homemade machine allows you to install the required number of molds for the production of blocks. When making molds, add about 5 cm in height in order to obtain a high-quality product during the production process with vibration.

To make molds take sheet metal at least 3 millimeters thick. The mold is welded on the outer sides so that during the production of blocks the products have the correct shape and appearance.

The internal cylinders for producing hollow blocks are made of the same metal as the mold itself, with a diameter of 8 cm. Before each pouring of the solution into the mold should be lubricated with oil to avoid the solution sticking to the walls.

To remove air bubbles from the blocks during the manufacturing process and to uniformly distribute the solution over the shape, the machine is equipped with a vibration mechanism. An electric motor from an old washing machine with a power of 150 W or more will cope with this task. To do this, you need to attach a bar with a shifted center of gravity to the working shaft. Vibration should be at a medium level. Vibration adjustment must be done manually in order to end up with good quality blocks.

A lifting mechanism is attached to the block mold. You can weld ordinary metal handles on both sides of the mold, so as not to waste time on manufacturing complex design. Lifting mechanism needed to properly release the blocks from the matrix and maintain the original shape.

Types of machines

On initial stage production will require spending a lot of effort searching for affordable raw materials and equipment. Equipment for home production will consist of a machine and a concrete mixer. You can buy a concrete mixer V hardware store, rent or purchase used goods. Without it, it is very difficult to make a homogeneous consistency from cement, which will affect the quality of the finished products.

A machine for making blocks can be purchased in a store or made with my own hands. Parts for its manufacture, according to by and large, can be found in every home. Vibrating machines for the production of cinder blocks can be divided into several categories:

Manual vibropress.
Semi-mechanical vibropress.
Vibrating machine with increased power.
Auto.

On initial stage production and for subsequent small private production, an automatic model will not be needed.

Among manual vibrating presses you can find a variety of models. The simplest and most affordable models are designed for the production of one block. Small dimensions of the machine allow you to work with it on a minimal area of land. The engine power does not exceed 200 W, but in one hour it allows you to make about 25 units of products.

Light weight - no more than 20 kg - allows you to easily move the device around the territory.

You can purchase a new machine for a minimum price of about 5500-8000 rubles. A model with matrices for the production of three different blocks will cost a little more and will cost about 10,000 rubles. If you need to save money, you can purchase a used machine, but please note that in this case there will be no warranty on it.

Making a vibrating machine with your own hands and saving significantly on the purchase of equipment will not be difficult. But as a rule, such models are characterized by low productivity. Such equipment is more suitable for entertainment than for work.

Semi-mechanical machines

Semi-mechanical vibrating presses also used in home block making. To install and use them you will need large territory than in the first case, which is explained by the principle of their operation:

The machine is equipped with a lever mechanism and a matrix.
The matrix allows you to remove finished products from the machine, leaving them on the floor.
The machine must be moved to the side, leaving the block blanks on the floor to dry.

You can purchase such devices for 13,000–25,000 rubles. Their cost varies depending on the number of matrices. Accordingly, productivity will vary from 30 to 60 hollow cinder blocks per hour.

Vibrating machines with increased power can be purchased to increase productivity. The operating principle is similar to a semi-mechanical device, but the equipment is more powerful electric drive allows you to increase product output.

Such machines have a pressure cover, which frees the worker to perform this function manually during the production process. This machine weighs about 220 kg, which will require a special room with a flat floor to install it. One production cycle designed to produce four blocks.

Such machines operate on a 380 V network and cost from 40 to 60 thousand rubles, depending on the configuration. Such machines make it possible to produce more quality products, in comparison with simple devices.

Semi-automatic vibropress

The semi-automatic device allows you to produce, depending on the matrix installed on it:

Cinder blocks for the construction of house walls.
Curbs.
Sidewalk tiles.
Composite for cladding buildings.

The pressing part is important element machine affecting performance. When purchasing a machine, it is better to pay attention to devices with a reinforced clamping part, which will affect subsequent performance.

Automated devices are stationary machines designed for production. Such devices will cost 400,000 rubles. To use them, you will need a separate area for storing finished blocks and a production room.

Such machines have the following technical characteristics:

With such equipment, the production process is accelerated and simplified at the same time due to the hopper into which the operator pours ready solution. From the hopper, the solution enters the mold through a dispenser. The device is controlled using a lever remote control.

Such devices make it possible to produce products High Quality with standard characteristics. In this case, all operator errors are minimized and rarely affect the quality of the product.

This machine can be used for small and medium-sized businesses. To work on one machine at the same time it is necessary to use at least three people. The operator must constantly monitor the production of blocks. Workers need to remove semi-finished products from under the press and take them out to dry.

The building materials market presents different kinds concrete blocks, including slag concrete. They are distinguished by their low weight and increased dimensions, which makes it possible to build a building at an accelerated pace. Wanting to reduce the estimated cost of work, many developers do not purchase block building materials, but make them themselves using a machine for producing blocks. Industrial models of vibrating machines are not always distinguished by their quality and performance. Easy to do homemade unit, guided by the recommendations given.

Cinder blocks

Types of concrete blocks for construction

Despite the fact that brick is often used in the construction industry for the construction of buildings, it is difficult for it to compete with block building materials made from concrete. To build a house, it’s easy to choose blocks that differ:

increased dimensions;
reduced weight;
filler used;
production technology.

The manufacturing technology of block products involves the use of the following filler:

expanded clay;
sawdust;
slags;
brick fighting;
dropouts.

Expanded clay blocks

Wall materials block type are divided into the following types:

expanded clay concrete blocks;
wood concrete products;
foam concrete building materials;
aerated concrete products;
cinder blocks.

The use of cinder blocks, the cost of which is lower than other block building materials, reduces the cost of building construction. Making cinder blocks on your own is easy to do at home, using a machine for producing blocks. Let's consider the characteristics of cinder block building materials.

Cinder concrete blocks - properties of building materials

Cinder concrete blocks are a building material produced using vibration pressing technology. Along with cement and sand, the following types of filler are used for production:

slags, which are waste from metallurgical enterprises;
granite and crushed stone screenings;
brick waste;
river crushed stone;
expanded clay particles.

Brick waste is one of the components for cinder blocks

The production of cinder block products can be carried out in various ways:

By industrial technology, which involves temperature treatment and steaming;
at home using homemade machine for blocks.

Making cinder blocks on a block production machine, you can obtain products with the following advantages:

elevated thermal insulation characteristics. Slag concrete has low thermal conductivity and retains heat well;
increased dimensions. They allow you to quickly build a cinder concrete building, outbuilding or a DIY garage;
resistance to microorganisms and damage by rodents. This is ensured by the filler used and the structure of the cinder block mass;
reduced cost. Homemade cinder block cheaper than, for example, foam blocks used for construction purchased in a retail chain.

In addition, slag concrete material is fireproof, easy to process and dampens external noise.

Along with its advantages, slag concrete has a number of disadvantages:

limited service life. The durability of a slag concrete structure does not exceed two and a half decades;
reduced strength properties. Only one-story and two-story buildings are erected from cinder concrete;
cracks when sheared. During the shrinkage of the box, cracks do not occur along the seams, but directly along the blocks.

Cinder concrete has low thermal conductivity and retains heat well

Slag concrete also has an unpresentable appearance and requires exterior finishing. In addition, cinder concrete cannot be used for foundation construction.

Despite weak sides material, it is preferred in situations where it is required for minimum costs quickly build a small building or outbuilding.

Which is the best block machine to use?

Developers who decide to independently produce cinder blocks for the construction of walls are faced with the question of choosing equipment. It is not always possible to rent a machine for the production of building blocks, especially in small populated areas. Many people decide to make the equipment themselves. Depending on your financial capabilities, you can choose the following options:

simplest design that allows you to make it at home wall blocks at minimal cost;
a modernized version of the unit, equipped with a compaction device and additional mechanisms.

It is difficult to give a definite answer as to which block production machine is preferable to use. It all depends on the number of blocks that need to be produced and financing opportunities. Let us dwell on the features of each unit.

Simplified block machine

To make cinder blocks on your own in a reduced quantity, it is not necessary to make a mechanized unit, use a vibrator, or additional mechanisms. The manufacturing process using simplified technology can be carried out in special forms.

Simplified block machine

Procedure:

Assemble the molds and coat them inner surface used oil.
Pour cinder block mixture into collapsible molds.
Leave for 3-4 hours until the solution hardens.
Disassemble the containers and carefully remove the blocks.
Allow to dry indoors.

If it is necessary to produce hollow products, it is advisable to use ordinary drink bottles to form cavities. A simplified machine for producing blocks, which is a container required size made of wood or steel, can be manufactured at a minimal cost.

Modernized machine for the production of building blocks

With an increased need for cinder blocks for construction big building you can make a more complex machine for producing blocks, equipped with special devices:

vibration mechanism. An electric motor is used as a vibration motor, with an eccentric located on the drive shaft. The drive power depends on the size of the mold, the mass of the slag concrete solution and is 0.5–1.5 kW. Under the influence of vibration, the slag concrete mass is compacted, the material is evenly distributed throughout the entire space of the mold, and air inclusions are removed. As a result of compaction, the specific gravity and strength of cinder block products;
lifting device. It is designed for accelerated extraction of finished products from molding containers. There are many constructive solutions, allowing to speed up and facilitate the removal of blocks. In the most simple version It is enough to weld handles of any shape to the molding container, by pulling which you can remove the hardened block. Using ready-made drawings, you can independently assemble a lever mechanism from scrap materials.

Upgraded machine for the production of building blocks

The shape used in this unit must correspond to the size of the cinder block that is planned to be made. In most cases, products are manufactured of standard dimensions - 0.4x0.2x0.2 m. The molding container must have a height increased by 4m5 cm so that the molded block after compaction has the required dimensions. To simulate cavities, pipe scraps of the required diameter can be welded to the bottom of the container.

We make a machine for blocks with our own hands - sequence of actions

To perform work on assembling the vibration compactor, it is necessary to prepare. Will be required following materials and tools:

steel sheets 2.5–3 mm thick;
metal pipe with an outer diameter of 7.5 m 8.5 cm;
Electrical engine power up to one kilowatt;
apparatus for electric welding with electrodes;
grinder complete with cutting wheel for metal;
locksmith tool.

Before production begins, you should prepare drawings and understand the design of the machine for producing blocks. It is necessary to decide on the dimensions of the blocks that will be made - the size of the mold depends on this. It can be welded to fit standard products or made in larger sizes.

Drawing of a cinder block machine

When everything is prepared, we make a machine for the production of block products, observing the sequence of operations:

Cut from steel sheet blanks rectangular shape for welding a molding container of the required size.
Tack them with electric welding and assemble the side edging of the molding box for pouring the cinder block mixture.
Check that the tack is correct, and if the diagonal length is equal, finally weld the mold elements.
Cut tubular blanks the length of which is equal to the height of the mold and make diametrically spaced cuts on the side surface.
Provide a conical shape for the tubular elements and weld them to bottom sheet future molding box.
Weld the crossbar to the cones, install plugs on the ends with a smaller size.
Produce final assembly molding box, welding the bottom with inserts to the edging.
Attach two handles on opposite sides to lift and transport the molding container.
Install the threaded elements for fastening the vibration motor and screw the vibration motor with the balancing weight.
Cut out the top cover that matches the dimensions of the inner cavity of the box and has holes for pipes.
Apply anti-corrosion coating, assemble the unit and check its operation.

The use of a group container of increased size allows to increase the productivity of the vibropressing machine.

Drawing. Vibroforming machine

Self-production of slag concrete blocks - recipe

Do-it-yourself cinder block making machine

To make cinder blocks using self-made equipment, you need to prepare the following materials:

Portland cement marked M400 and higher;
screenings or small crushed stone;
slag or ash from coal combustion;
sifted sand;
water.

Special plasticizers are also used to increase the strength of the cinder block mass and accelerate hardening. To prepare an increased volume of slag concrete mixture you will need a concrete mixer.

The following slag concrete compositions are used:

mix Portland cement with slag in a ratio of 1.5:8. Gradually dilute the mixture with water, the amount of which should not exceed half the volume of cement;
mix crushed stone screening, cement and coal ash in a ratio of 4:1:4. Add water to the concrete mixer until the solution becomes plastic.

Possible formulations include the use of granulated slag, plasticizers, quartz sand and broken bricks.

Portland cement marked M400

We manufacture products ourselves using a block production machine

Using a self-made machine for blocks, carry out work according to the following algorithm:

Place the equipment on level ground.
Connect electrical power.
Prepare cinder block mortar.
Pour the prepared mixture into the mold.
Turn on the vibration motor for 2-3 minutes.
Add cinder mixture to the top level.
Place the protective cover and turn on the vibrator.

Compact the array. The cover should come into contact with the stops located in accordance with the height of the block. Then remove the box and let the molded block sit until the mass sets. After careful removal, dry the cinder concrete products in a closed and ventilated area.

Let's sum it up

When planning the construction of a building made of cinder concrete, you can reduce costs by independently making a machine for producing blocks. It is important to use verified documentation for the manufacture of the unit and carefully understand the design of the vibration compaction device. To obtain high-quality products, study the recipe and also understand the technology.

Making cinder blocks at home is a profitable business idea. By receiving free drawings, a description of the technology from us and with a little effort, you will receive quality equipment, guaranteeing regular income!

High-quality cinder block is a building material that is in demand always and everywhere. Thanks to its large weight and convenient size, it allows you to lay structures of any complexity and height (from an ordinary extension to a house to industrial workshops).

Equipment for the production of cinder blocks at home

The presence of a vibrating machine will make the cinder block more dense and of higher quality, avoiding the formation of unnecessary voids. The vibrating machine will significantly increase the quantity of manufactured products. Now you don't have to wait for the concrete blocks to set completely before moving on to another batch.

Do-it-yourself vibration machine for the production of cinder blocks

The best option at home is a machine with 4 sections at once. In order to make such a machine, which allows you to produce about 100 cinder blocks per hour, you need to first download a 3D model of the machine:

After taking the measurements, cut out the parts for the future shape from sheet metal about 2 millimeters thick.
Then the sheets are welded together in such a way as to obtain a shape without a bottom. The height of the mold is 50 millimeters higher than the height of a standard cinder block. This is done so that the solution can be added immediately, rather than adding it over and over again after shrinkage.
Separately cut out pipes equal to the height obtained metal form. They will form the necessary voids. Weld the holes at the ends according to the diameter, making the pipe “blind”. This will make it easier to remove the dried cinder block.
The cylinders need to be connected to each other closer to the top, maintaining the required factory distance. They must be firmly welded to the lifting lid.
WITH outside Forms securely fasten the vibration motor. It will ensure correct and rapid shrinkage of the solution. This is how the vibration casting process is carried out.

By looking at the 3D model of a cinder block machine, you can easily figure out how it works and what the principle of its operation is. And the dimensions of the model allow you to easily make the same equipment with your own hands according to the sample.

The kit contains drawings of a machine for the production of cinder blocks with your own hands and diagrams of more simple models vibrating machines for cinder block production:

Note. 3D models are saved in file formats: *.sldasm (an extension of the SolidWorks 3D editor, also supports free eDrawings) and *.step (a standard for exchanging 3D graphics that is supported by most 3D editors, including free ones: FreeCAD, Blender, etc.).

Making cinder blocks at home

The cinder block is made in a special form by vibration shrinkage of concrete mixture poured inside. After the material hardens, the hollowness of the block is about 30%-40% (depending on the shape - round or square) of the total area. The resulting cavities not only save consumables during the production of cinder blocks, but also serve air cushions for sound insulation. They are also excellent for reinforcing masonry, which gives walls maximum stability.

During manufacturing, it should be taken into account that standard size one cinder block is 39 x 19 x 18.5 centimeters. This is a standard, a generally accepted value from which builders build when designing and performing calculations. Therefore, strictly follow the parameters during home production of building blocks.

To produce cinder blocks on your own machine you will need:

cement (M400, but better than M500);
water;
coal slag;
gravel (about 10 millimeters in diameter);
sand;
plasticizer (strengthens and dries blocks much faster in 2-3 days);
mesh seeder for cleaning sand from impurities;
concrete mixer;
shovel;
pallets on which you will dry the building blocks.

Attention! When preparing a concrete mixture, you should always control the amount of water in the composition. If you exceed the water norm by 30%, the concrete product will be exactly 2 times weaker!!!

All components of the solution are taken in the following proportion: 7 parts of slag, 2 parts of sand and gravel, 1.5 parts of cement, 0.2% plasticizer and water. The mixture should be moist and crumbly (fundamentally different from bricklaying mortar). When squeezed tightly in your hand, it should hold together in a lump, and when it falls to the ground, it should crumble. During the vibration of the machine, the mixture is compacted and visually, as if it squeezes out water, turning into a liquid solution. This is a natural vibration casting process for concrete. If the resulting concrete is too liquid, then no vibration rack will help ensure the integrity and strength of the cinder block, which will not dry completely and will soon begin to fall apart.

Financial costs for the production of 1 m 3 (71 pieces) of cinder blocks at minimum cost product:

When producing durable cinder blocks (for load-bearing walls) a semi-dry mixture is prepared for thin-walled concrete products. In the article “production of paving slabs” you can get acquainted in detail with the process of preparing a high-quality and durable concrete mixture of thin-walled products.

Note. It is worth noting that the same technology is used to produce expanded clay concrete blocks. Only the composition and recipe for preparing concrete differs.

Profitability of cinder block production

So, the cost of one square meter steel sheet will be about $4.3. Buying a motor (you can use a used one to save money) will cost an average of $30. One meter of pipe with a diameter of about 15 mm costs $1.4. If you have no experience in welding metal structures and the necessary equipment, be prepared to pay another $100 to a specialist who has the necessary skills.

This means that a home vibrating machine will cost about $400. At the same time, the cost of materials for the solution, which is enough to make a daily norm of 100 cinder blocks, will be another $30. Be prepared to spend $700 per month on Consumables for preparing concrete, etc. As a result, to start own business you will need 1200-1300 dollars.

How quickly will this money be recouped? The cost of one factory-made cinder block averages about $0.7-$0.85. At the same time, home-made products will be sold cheaper, i.e. about $0.5. We will take this amount as the basis for calculating profit.

If you produce 100 pieces of products per day, you can earn about $20. Income per month if there is established sales will be about $600. As you can see, you can not only recoup your investment, but also gain profit in a short time.

As you can see, having your own vibrating machine for vibrating casting building blocks can not only simplify and reduce the cost of your construction, but also give rise to a profitable business!

Cinder block is one of the most popular building materials. It is made using the vibrocompression method from concrete mortar. A wide variety of buildings are erected from cinder blocks - from sheds and garages to residential buildings.

Are you planning to build something out of cinder blocks? Make them yourself! There is nothing complicated in the production technology of these concrete blocks. You need to thoroughly understand the operating procedure, find out the basic requirements and follow the recipe.

The dimensions of the cinder block are standardized - 188 x 190 x 390 mm. Each block has holes. Usually there are 3 of them. For the manufacture of building elements, a mixture of cement of a grade not lower than M400, blast furnace slag and coarse sand is used. Additional fillers and plasticizers are often added.

You can make blocks either manually using molds or using equipment with a vibrocompression function.

On average, one bag of cement is enough to make 36 blocks. The savings are obvious.

The cinder block must have the correct geometry. Even small irregularities will lead to deterioration in the quality of the masonry. To get even blocks, the molds need to be filled not just to the brim, but with a slight mound, because... During vibration, the concrete will shake slightly and settle.

Prices for different types of building blocks

Building blocks

How to prepare the solution?

There is no universal solution composition for making cinder blocks - each craftsman has his own unique recipe. In general, you need to focus on the characteristics of the slag composition.

Components	Volume, l, per block	Compressive strength of the dried block, kg/cm2	Frost resistance of the finished block, cycles	Thermal conductivity coefficient of the finished cinder block
Slag up to 8 mm	10	30-40	30	0.35-0,4
Sand up to 3 mm	1,8
Cement	2,75
Water	1,5

There is a standard “factory” recipe, you can use it as a guide. The proportions are as follows:

slag – 7 parts;
sand – 2 parts;
cement - 1.5 parts;
water – 1.5-3 parts. More about the definition required quantity water will be discussed later.

Helpful advice! Previously, standard dimensions of slag concrete blocks were given. However, for private buildings it is more convenient to use products with dimensions of 400x200x200 mm.

In addition to slag, the composition of such blocks can include ash, sawdust, gypsum, broken bricks, coal combustion products, gravel and other similar materials.

Please pay attention Special attention determining the required volume of water. It must be added so much so that the products do not spread after formation.

You can do a simple test. Drop a handful of solution onto the ground or other surface. If it crumbled, but when squeezed back with your hands, it came back together into a single mass - the consistency is optimal.

Making cinder blocks by hand

If the planned construction is not too large-scale, the blocks can be made without a brick press.

Making a mold

We assemble a mold measuring 40x20x20 cm. If you wish, you can adjust the dimensions at your discretion. To make the mold we use metal sheets or wooden boards.

The design is extremely simple: the bottom and side walls. We fasten the walls taking into account the selected width and length of the block. The height of the edges of the form must also correspond to the planned height of the building elements.

Helpful advice! You can make molds with cells to make 4-6 blocks at a time - very convenient. You just need to increase the length and width of the outer edges and install partitions between them.

Prepare empty glass bottles. You will use them to create voids in the blocks.

Filling the blocks

Pour the solution evenly into the mold to the brim.

Place the bottles with the neck up in the poured mixture. We level the surface of the fill, removing excess mortar.

We wait about 5 hours and take out the bottles. We leave the cinder blocks in the molds for a day, after which we carefully remove them and lay them out in stacks on a horizontal surface.

We leave the blocks to dry for a month. Only after the specified time can the material be used for construction.

Helpful advice! Cover the blocks while drying plastic film. It will protect the products from cracking during the heat and prevent them from getting wet in case of rain.

Making cinder blocks on a machine

The machine allows you to significantly increase work productivity. The equipment has a fairly simple design.

Assembling the machine

The main element of a homemade vibratory compacting machine is a mold (matrix) for slag concrete mortar. By its design, this form is metal box With internal elements in the form of voids. The void stoppers can also be removable.

Set for work includes the following materials and tools:

First step. We make a mold according to the size of the future blocks. Cut from sheet steel side faces matrices. We will make a form for 2 blocks at once. To do this, we cut out the inner central partition from steel and fix it in the box.

Second step. We determine the height of the elements to decorate the voids.

Important! In accordance with the technology, the height of the voids should be such that the bottom wall has a thickness of 3 cm.

Third step. We cut 6 pieces of pipe along the length of the limiting cylinders to form voids.

Fourth step. We give the pipes a conical shape. To do this, we cut each piece of pipe longitudinally to the middle, compress it with a vice and connect it using welding machine. each cone on both edges.

Fifth step. We connect the stops in a row along the long edge of the cinder block. Along the edges of the row we add a 3-centimeter thick plate with holes for fastening with eyes.

Sixth step. We make a cut in the middle of each such compartment. We weld lugs on the back side of the form. They will allow temporary fastening of elements to create voids. Very convenient solution– it will be possible to remove the cylinders and make monolithic blocks.

Compact cinder block machine (press on top)

Seventh step. On the outside of one of the transverse walls we weld 4 bolts for the mounting holes of the vibration motor.

Eighth step. Using welding, we attach an apron on the loading side and blades along the edges.

Ninth step. We prepare all structural elements for painting - we clean them and thoroughly polish them.

Tenth step. We do the press. It will look like a plate with holes repeating the location of the holes in the block.

Important! The diameter of the holes on the plate should exceed the same parameter for the recesses in the block by approximately 0.5 cm.

We make the plate of this size and fix it in such a way that it can go deep into the box at the place where the limiters are installed by 5-7 cm.

Finally, all that remains is to weld the handles to the press and cover the structure primer mixture and mount the vibration motor.

An ordinary electric motor can be converted into a suitable vibration motor. To do this, it is necessary to weld eccentrics onto the engine shafts. We won’t bother too much - we’ll just weld the bolts so that their axes coincide. To regulate the frequency and strength of vibration, screw nuts onto the welded bolts.

Prices for machines for cinder blocks

Cinder block machine

Making blocks

Recommendations for preparing the solution are given above. You can use the standard recipe or modify it at your discretion. The main thing is to obtain optimal viscosity. It can be determined “by eye” - the lump of mixture should hold its shape steadily.

Before loading the mixture, lubricate the contact metal surfaces with oil. Thanks to this, the solution will not stick to the iron.

Laying it down ready mixture into the matrix and begin pressing.

Place the filled forms on a vibrating plate and let it compact the solution for 5-15 seconds. After the specified time, add more solution to the mold, because previously loaded will inevitably settle.

We repeat the process, only this time we do not turn off the vibrating plate until the clamp reaches the limiters. We remove the mold until the machine stops.

We give the blocks 1-3 days for initial drying, carefully remove them from the blocks, lay them out on a flat horizontal surface and cover them with plastic wrap. The material can be used for its intended purpose no earlier than after a month.

Good luck!

Video - Making cinder blocks with your own hands

Cinder blocks are a popular building material from which buildings and structures for various purposes are erected. Since they are easy to make at home, cinder block making machines are in quite high demand. if you have free time and desire, then you can try to build this equipment yourself.

The popularity of cinder blocks (as well as foam blocks) lies in their unique composition, and machines for making cinder blocks not only allow you to obtain high-quality building material with limited funds, but also provide the opportunity to produce them for sale. For many, the production of cinder blocks has become a profitable activity that brings significant income.

Cement;
Granulated slag (which is foundry waste);
Special fillers.

The result is blocks that have high sound and heat insulation properties.

Making a mold for cinder block

On the Internet you can find drawings of a machine for making cinder blocks of varying complexity, according to which you can build it yourself. These devices allow you to produce both hollow and solid blocks. The simplest device is a collapsible form without a vibrator.

In this form, a concrete solution with a high water content is used. It is also called “soft”.

The sequence of obtaining blocks in a simple form

Filling the molding box or matrix with concrete;
Keeping the solution in the mold until it sets (several hours);
Disassembling the mold - the block arrives in a free state.

Advice. It is convenient to form voids in the blocks using champagne bottles, which fit well in size and do not break because they have thick walls.

The walls and bottoms of these molds can be made from metal plates or sheets of plywood. Before pouring the solution into the mold, it should be lubricated with used machine oil.

Homemade machines with a vibrating device

Vibrating machines for making cinder blocks are more advanced equipment. Making blocks using them is faster and more convenient, since you don’t have to wait for the solution to set. In this case, the concrete solution is prepared more rigid and thick, it should have a slight shrinkage.

Technically, this is implemented in two ways:

using a vibrating table;

equipping the mold itself with a motor, on the shaft of which an eccentric with a displaced center of gravity is installed.

An eccentric machine is more convenient for producing large quantities of material, since it allows you to obtain ready block in one go without turning over.

Homemade machine according to the “laying hen” scheme

The given drawing of a machine for making cinder blocks is one of the most simple.

Its design includes the following basic elements:

molding box - matrix (it has no bottom);
vibrator on the side wall;
drawer handles designed for easy removal without damaging the impression shape;
replaceable sets of pressure plates;
void formers for various void shapes.

The current standard provides established dimensions one such block - 39 x 19 x 18.8 cm. In this case, the voidness should not exceed 30% .

Matrix manufacturing

Sheet metal is taken (from 3 mm);
A shape is cut out of the sheet to the size of one block (5 cm is added to the indicated dimensions for compaction);
A through box is formed (no bottom);

Important. It is necessary to weld the sheets from the outside, this will prevent violation of the correct geometry.

Special strips welded at the ends give the box greater stability. For this purpose they are used profile pipes with a small section;
The base of the matrix is upholstered with sheet rubber, which will serve to protect the lower edges of the matrix from deformation;
An apron is formed for the edging, which will prevent the solution from spilling when filling the mold;
Handles are attached.

Machine diagram

Below is an exact drawing of a machine for making cinder blocks, indicating the exact dimensions. Voids can be formed various shapes(rectangular or round).

Important. The putty former should have a conical shape, which will allow you to easily remove the matrix from the raw cinder block.

Well suited for making void formers round pipes. In this case, the workpiece can be given a conical shape using a lathe.

The vibrator is made from a low-power electric motor. For example, a motor from washing machine power in 150 – 200 W. The shift of centers is performed as follows.

An eccentric is attached to the engine axis, which can be made from a metal strip with an asymmetrically located hole. Dimensions, weight and shape must be determined experimentally. If the eccentric value is too large, the vibration will be excessive, causing the concrete cast to fall apart.

This design can be improved by installing a mobile platform with levers. This will make it easier to lift and move around the machine area with the vibration-shrink unit.

Stages of the cinder block manufacturing process

The formation of blocks is carried out in special forms, which are pre-wetted. The solution is placed in them. The molds are placed on a vibrating plate, which is turned on for a few seconds (5 - 7 s);
As the solution settles, it must be added. When you turn on the vibrating plate again, you need to wait for the pressure to completely lower on the stops. This will show that the formation is complete. After 5 - 10 seconds (even before the motor stops completely), the mold should be removed;
Finished blocks must be dried. This process takes from a week to a month. Drying time depends on conditions (humidity, temperature, etc.);
The equipment provided allows, when working together, to perform up to seventy blocks in an hour. If the quantity is small, the solution can be mixed by hand. However, a concrete mixer allows you to get more quality material and the final product;
Once the cinder blocks have dried, they can be used to build walls - building with blocks is not difficult. In this case, it is necessary to comply simple rules– the first two weeks the blocks are watered;
After this, the outside should be covered with a double layer of plaster. This will prevent rain from washing away the slag. Within a year, harmful substances will disappear from the material and after that you can move on to interior decoration and roofing work.