Do-it-yourself vibrating sieve, drawings and description. How to make a vibration table with your own hands - step-by-step instructions. Making a vibrating table with your own hands

For the private sector, this is one of the most popular materials for exterior finishing, but it is not cheap, and the coverage area is usually quite large. To make such a tile, you can assemble a vibrating table with your own hands, and you will find drawings and a description of how to make such a unit below.

Most likely, the available materials on the farm will not be enough; you will have to make purchases, but farms are also different - someone may find all the necessary parts at home.

Vibrating table for paving slabs and concrete blocks

What it is

The vibrating table consists of a steel table top mounted on springs, which is driven by a vibrating motor. The engine itself can be located in different places - under the tabletop, on a specially welded (screwed) shelf in the middle or at the bottom of the supporting part of the structure. The machine is used for the production of paving slabs and concrete blocks filled with slag or slag, as well as small-sized concrete and reinforced concrete slabs. The solution is compacted in a specially made form for a particular product.

Such a unit, in addition to concrete work, can sift sand

In addition to compacting concrete, this can be adapted for sifting sand, which is needed when making a solution - such a model is shown fragmentarily in the photo above. Despite the simplicity of the device, it can vary in performance, and this depends, first of all, on the engine power and the working area of the countertop. In addition, the unit may have different configurations. But, nevertheless, you should adhere to a certain value for parameter H - this is the height, which should be within 70-80 cm and depends on the height of the working person.

Sectional view of an electric motor with an eccentric (highlighted in red)

The core or main part of such a machine is a vibration unit, on which the functionality of the worktable depends and consists of an electric motor with an eccentric instead of a pulley. Of course, you will have to choose the power yourself, however, this figure starts from 250 W or more. In this case, low-speed units from 1200 to 3000 rpm are suitable. With a higher number of revolutions, there will be a negative impact not only on the product, but also on the structure itself.

Main technical characteristics

Of course, to assemble such a device you will need other materials that you will have to cut, these are:

sheet steel 3-5 mm thick for the tabletop and shelf for the engine (of course, it can be thicker, but this will increase the weight of the table and the need for power in the vibrating unit);
steel corners 50×50 mm for assembling the frame and frame;
hollow profile with a rectangular, square or round cross-section for supports (legs). Sectional area 40×60 mm, 50×50 mm or ø 40-50 mm;
half-beam with a sole width of 70-100 mm;
four or six springs made of alloy steel - the table cover is mounted on them (springs from the valves of a VAZ-2101 car, motor shock absorbers are suitable);
electric motor with eccentric (power at your discretion);
galvanized mesh for sifting sand (optional);
bolts, nuts, regular and lock washers.

In addition to materials, you will, of course, need a set of tools and, at a minimum, this:

electric welding operating on alternating or direct current;
grinder with cutting disc;
electric or cordless drill with drills and attachments;
adjustable wrench;
construction corner, level;
tape measure, marker, pencil or scriber.

Drawing for assembling a vibrating table with dimensions in mm

If we talk about the technical characteristics of such a machine, then, first of all, you should take into account its size - productivity will increase with an increase in the area of the tabletop. The number of forms that can be laid out on a steel sheet in one go directly depends on this. But the selection of engine power depends not only on the area of the tabletop, but also on the mass of the casting that will be loaded onto the lid. For example, the thickness of paving slabs varies from 25 mm to 40 mm, the thickness of paving stones from 80 mm to 100 mm, and from 300 mm to 400 mm.

In fact, the recommended countertop area, if you adhere to the factory parameters, is 1800 × 800 mm or 1.44 m2, but there is a difference between a 25 mm and 400 mm layer of concrete - definitely 0.036 m3 and 0.576 m3 (more than half a cube of difference). Someone, of course, will refute the significance of such a volume in volume, since the blocks are made from lightweight concrete and in this case they are made so by slag and expanded clay. But I would like to immediately object to adherents of such views - at the stage of manufacturing a particular material, concrete is a liquid solution and its weight practically does not change depending on the type of filler, since the bulk depends on the amount of water.

Engine and drawings

Method of hanging an electric motor under a table top

Since there is no need for too much power in the vibration unit, this factor makes it possible to use a motor from an old washing machine, for example, from a “Riga” - such a unit was previously used by almost 90% of the population of the CIS, so in the private sector many can be found in in some barn such a “washing machine”, and in working condition.

Of course, this is very good when you don’t have to buy the most expensive part of the machine, but there is also a negative side - it has a low service life, therefore, you can only use the motor for 3-4 years, and even then with an average load. But if you put the production of tiles, paving stones or blocks on stream, then you will earn money on new units of the unit very quickly.

The motor is mounted on the lower tabletop, and a belt drive is used to rotate the eccentric

But the service life of the motor can be increased if its weakest point is strengthened, and these are the bearings, which quickly fail under load. Therefore, you just have to immediately replace the old bearings with reinforced ones, thereby increasing the service life of your homemade vibration unit. In addition, you will protect the stator and rotor from overloads if several bearing balls fall apart. This situation will increase the load and if the stator can still be rewound, then the armature will have to be changed completely - it is better to buy a new motor altogether, but it is even better to avoid this.

As you have already noticed above in the text, engines with a rotation speed of 1200-3000 rpm are best suited for construction, but there is also such a parameter as the amplitude of oscillations. This is the amount of deviation from the central axis, for example, if on the eccentric pulley the center of the mounting hole is shifted 2 mm away from the point of intersection of the diameters, then the amplitude (span) of vibrations will be slightly larger due to inertia. If the engine produces 2400 rpm, then in one second the tabletop will move 40 times (2400/60=40)! This is quite enough for an industrial concrete unit where finishing materials are produced. Of course, for reinforced concrete floors (hollow-core slabs) this is not enough, since they need a production workshop with a large vibrating table and a thermoelectric mold, where reinforced concrete structures are compacted.

It would not be superfluous to recall that 2-3 thousand engine revolutions are more suitable for industrial production, where the power of the vibration unit is also higher. But for household needs, and even with a large volume of production, it is best to use motors whose frequency does not exceed 1200-1500 rpm, and there are good reasons for this. If at a frequency of 2400 rpm the tabletop moves 40 times per second, then at a frequency of 1500 rpm it will drop to 25 (1500/60 = 25). This parameter will almost halve the load on the frame and factors such as metal fatigue will not be as active.

Note. It’s not at all difficult to assemble a vibrating table with your own hands, especially if you have drawings and a description of how to make such a machine, but you can buy it. The lowest retail price of such a unit is from 15,000-17,000 rubles, but with such capacity it will be difficult to put production on stream, although you can still earn extra money. Factory designs contain a power reserve, so their service life is almost endless.

Video: Simple design of a DIY vibration table

Assembly work

The meanings (names) of all nodes are listed below by numbers

Support legs.
Tabletop.
Electrical connector.
Fork.
Vibrator start button.
Rubber supports.
Vibration unit.

Now let's take a closer look at the assembly process. Read the step-by-step instructions below:

Choose the size of the tabletop - if the engine is weak, then 700x700 mm is enough. The frame is best made from a steel angle 50x50 mm, or a half-beam with a sole width of 70-100 mm. The joining of corners is usually done by electric welding, although a bolted connection is acceptable, but it is unreliable due to vibration and must be constantly checked. While assembling the rectangle, check the corners with a construction angle, and when finished, measure the diagonals for coincidence (tolerance ± 1-2 mm).
For the frame, assemble the legs from steel profiles, which were discussed above in the “Main technical characteristics” section (the height must be unconditionally the same, without tolerances). Below and weld jumpers from a steel corner, and it is best to weld plates in the form of a sole to each leg. It is better to make the upper jumpers from a half-tee with the sole up - it turns out to be an excellent platform for springs.
In each corner of the frame and in the middle (if necessary), attach springs that can be found at the car market - options from car engine valves, or shock absorbers from a moped, cut in half, are suitable. It is best to fasten them by electric welding, but do not fix them directly to the frame, but weld the glasses on top and bottom and simply insert the spring into the bottom one, and put the glass from the table on top - this is very convenient.
When the frame assembly is ready, you can install the tabletop on the frame and begin installing the engine.

Note. If the tabletop is stationary, then it is welded to the frame. If you see sand sifting in the future, then fix the steel sheet with a bolted connection so that it can be removed and the mesh inserted.

Simple vibration table with vertical vibration

Now you can begin assembling the vibration device, which can either be attached directly to the tabletop, or a pulley can be welded to the table, and the motor itself can be mounted below, on a shelf - I personally like the second option better, as it allows you to partially disassemble the structure without much difficulty.

To grind an eccentric, you need to make one of the pulleys (preferably on the motor) asymmetrical. To do this, they usually cut one side on a lathe - this is not easy to do, so contact an experienced turner to reduce the radius on one side by 2-2.5 mm - this amplitude will be enough.

If you install the motor strictly in the center, the vibrations will be vertical, but if the pulley is welded to the tabletop in the middle, and the motor is fixed on a shelf on the side closer to the table, the movements will be vertical-horizontal, which is much better for compacting concrete.

Video: Budget vibrating table - assemble it yourself

Conclusion

I told you how to assemble a vibration table with your own hands and additionally provided drawings and a description of how to do it in reality. But there is not much information here on how to mount a vibration unit yourself. The fact is that this is a topic for a separate article, since it requires calculations - perhaps in the near future I will fill this gap.

Making a vibration table with your own hands is not as difficult as it might seem at first glance. You just need to stock up on everything you need for this and follow certain instructions. I will introduce you to them further.

Some general information

What exactly is a forming vibrating table and why is it needed on the farm? If you were looking for a similar article, then you already know the answers to these questions.

But for those who stumbled upon it by chance, I will explain:

The equipment in question is a table whose top is secured using a system of springs or hangers. A vibration motor is installed at the bottom of the platform, which causes it to vibrate when turned on;

Concrete is poured into special forms, which in turn are installed on the countertop. Transmitted vibrations remove air bubbles from the solution, thereby increasing its strength qualities.

Using this method at home you can make:

Paving slabs;

Eurofence sections;

Window sills;
Monuments;
Foam blocks.

Such equipment can be purchased in a store. But its price is quite high, and for one-time use it is unprofitable to make such an expensive purchase.

But making a vibrating table for paving slabs with your own hands will not be very expensive. So, if you set out to economically, but at the same time beautifully and practically, improve your suburban area, then further information will come in very handy.

Process description

Any business should always begin with the preparation of the necessary materials and tools. Assembling a vibrating table with your own hands is no exception in this matter, so let’s get started:

Stage No. 1: prepare everything you need

You will need a certain set of materials:

And you can’t do without tools either:

In addition to the above, of course, you also need drawings of the vibrating table, which can be found in abundance on the Internet. It is according to the scheme you like best that further assembly work will be carried out.

Stage No. 2: assembling the base frame

Now let's move on to making the vibrating table.

Let's start by assembling the base frame:

Cutting a corner using a grinder into four parts in accordance with the data on the drawing diagram. Most often these are 700 mm sections, but depending on the volume of your planned work, you can choose any other sizes. That is, the more you need to produce, for example, the larger the machine should be;

Be sure to wear safety glasses before cutting, otherwise you risk getting scale in your eyes.

The resulting we assemble the fragments into a square or rectangle and weld them to each other welding machine.

If you do not have a welding machine or do not know how to use it, then as an alternative, you can connect the sections with bolts, having previously drilled them in the right places. This design will be collapsible, but less rigid.

Stage No. 3: installation of legs

How to make legs?

To do this we proceed as follows:

We take profile pipes or a pipe, depending on how long it is, and cut it again using a grinder into four absolutely equal parts. It is very important that all supports have the same height, since the slightest slope to one side will lead to the mixture pouring out of the mold during operation of the vibrating table.

In addition, you also need to pay attention to:

The vibration motor, which will be attached to the tabletop, did not touch the ground;
The machine operator did not bend over during its operation, but could perform all operations in the most comfortable position for him;

The resulting We weld the sections to the corners of the previously made frame;
Now it is necessary to solve the issue of stabilizing the structure.

Here you can go two ways:

Dig small holes under the legs, install them there and concrete them. In this case, ideal stability is guaranteed, but the machine will also be stationary. If you plan to carry out work exclusively on your suburban area, then this is the best option;

Weld round or rectangular pieces of metal to the edges of the supports, increasing their area of contact with the ground. In this case, it would be a good idea to additionally connect the legs below with crossbars from the remnants of the corner. The design will not be as fixed as in the previous version, but it will have mobility;

Stage No. 4: assembling the tabletop

This is the most critical stage at which you must adhere to the following algorithm of actions:

Preparing the springs. I deliberately did not include them in the materials, since I wanted to separately give additional recommendations on them. After all, most owners will be puzzled by the question of where to get them. So, the best option is to go to the car market and buy moped springs or springs from car shock absorbers;

Cut them in half and attach them to each corner of the base frame. If it looks like an elongated rectangle, then one spring must also be fixed in the middle of the large sides.

The plan is carried out in one of three ways:

Welded at both ends to the base and to the tabletop;
They are welded at one end to the base, and special glasses are installed on the tabletop, into which they are inserted a third of their length;
They are welded at one end to the tabletop, and special glasses are installed on the base, into which they are inserted a third of their length;

Instead of glasses, you can weld pins. In this case, the springs will not be inserted, but put on them, which is also suitable for the normal operation of the vibrating table.

We apply the vibration motor to the tabletop in the place corresponding to the drawing, and make marks through the mounting grooves. At the obtained points we drill holes for the bolts, with the help of which we fasten the engine. To prevent the bolts from protruding from the outside, you can first weld a small metal box at the place where the vibrator is fixed;

For the countertop, it is better to choose a steel sheet with sides. This will prevent the molds from slipping off the surface in the future.

We weld or place the tabletop on top of the base with springs and we get a homemade universal vibrating table, ready for use.

Conclusion

In the article you learned what a vibrating table is for and how to make it yourself at home. The video in this article contains some additional material related to this topic. Please ask any questions you may have as you read in the comments.

The issue of designing paths on a property sooner or later arises before all plot owners. The option of using paving slabs for this purpose is one of the simplest, most reliable and beautiful. Therefore, for independent production and installation, you will need instructions on how to make a vibrating table for paving slabs with your own hands. This article will discuss all the nuances of assembling the device, as well as recommendations from specialists on frame manufacturing and engine selection.

The vibrating table is used for the production of polymer-sand paving slabs, concrete fence elements, figures, monuments, statues, using the vibration casting method

A vibrating table, or as it is also called, a vibrating press, is a special device designed for the production of paving slabs. The main advantage of this device is the ability of its working surface to perform oscillatory movements. In addition, the vibrating table can be used for other purposes, for example, for the manufacture of monuments, sections of concrete fences, etc.

Using a vibrating table and special molds, you can make paving slabs of any size and configuration

As for making a vibrating table yourself, this is most often resorted to when they want to independently make paving slabs to decorate their own yard. Although in some cases this method is used to organize your own small enterprise.

Of course, using a vibrating table, you definitely won’t be able to produce on an industrial scale, but considering that it can be made from scrap materials, and with its main functions - eliminating air bubbles and compacting the composition of molds, such a device will do an excellent job.

Let us consider in as much detail as possible what is needed to make a homemade vibrating table, as well as step-by-step instructions for its manufacture.

A vibrating table can be purchased at a hardware store or made independently from scrap materials.

Types of equipment for the production of paving slabs

Vibrating tables come in different varieties, and before moving on to manufacturing, you need to decide on the appropriate option and its features. So, depending on the direction of vibration, the following types of devices are distinguished:

Models with horizontal vibration.
Models with vertical vibration.

Devices are divided into these types depending on exactly how the rotor is located in them. At the same time, the first option (table with horizontal vibration) is more popular.

Depending on the installation method, vibrating tables can also be divided into two types: stationary and portable (mobile). But depending on the specialization of the devices, there are those that are intended for forming products, as well as those that are designed to remove the finished product from the mold using vibration.

Externally, the molding and demolding tables are practically no different, with the exception of a special attachment with holes on which the mold is installed, from which the finished product needs to be removed.

Design diagram of a vibrating machine for the production of paving slabs

If you want to make your own machine for the production of paving slabs, it will be quite enough to make a vibrating table with horizontal vibration. In this case, you can remove the tiles in two ways: manually (usually flexible molds are used in a home workshop) or by installing a demolding attachment.

Paving slab manufacturing technology: machine operating principle

In order to understand how to properly make this or that device, you need to understand the manufacturing technology of the elements for which it is designed. Therefore, let us consider the principle of operation of the vibrating table and what each of its constituent parts is intended for.

The working surface of the table is attached to the frame using a special spring system, if we are talking about a horizontal vibration device, or with the help of suspensions, in the case of vertical devices. Due to the operation of an electric motor of calculated power, on the shaft of which there is an eccentric, the tabletop is set in motion. Due to the fact that the eccentric moves, the center of gravity changes, resulting in the desired vibration. For ease of working with the vibrating table, the height of the base legs should be taken into account.

How to make a vibration table with your own hands: drawings and description

A general idea of the structure of the vibrating table can be obtained by reading the sketch. But to independently manufacture such a structure, you will need a full-fledged drawing that will allow you to take into account all the nuances and pre-determine the required dimensions of each of the elements.

Before you start creating a drawing, it is worth considering the two most popular options: for beginners and for masters. In the first case, the brick making press has a simpler design, but at the same time it allows you to perform the main task - forming products. Assembly, maintenance and care of such a device are quite simple and even a novice master can do it.

Helpful advice! Over time, additional functions can be added to such a simple design, such as a sand sifter. The main thing is to correctly carry out all the necessary calculations so that the addition of new functions does not cause the failure of the main elements.

More complex designs intended for craftsmen initially combine a brick press and a sand sifter. This design is more complicated to assemble, however, it is convenient in that it facilitates the process of obtaining components of the required fraction.

Diagram of the frame and molding attachment for the vibrating table

Step-by-step instructions for making a vibrating table with horizontal vibration

The first thing you should pay attention to before starting work is the size of the countertop. It is believed that the minimum surface size should be 600x600, since with narrower sides, the forms will fall during movement. In addition, a narrow structure will have less stability.

Helpful advice! If, during the process of making paving slabs at home, the molds still fall off, you can try to reduce their number. This will negatively affect the performance of the device, but in this case the number of tiles damaged due to falling will be reduced.

In many ways, the size of the vibrating table is determined by the required production volume. We can say that there is a direct relationship here - the more elements must be made at a time, the larger the countertop area should be. Naturally, a large concrete block press will require a more powerful engine, and the materials from which the structure will be assembled must be very durable.

Vibrating table base and unbalance mounting

As for the height of the vibrating table, it all depends on the individual data of the person who will work at it. The standard height, optimally suitable for a person of average height, is 90-100 cm.

Important! When deciding on the height of the table, it is worth taking into account the installation method that will be used. So, for example, if a stationary device needs to be dug into the ground and cemented, then the length of the table legs must be taken into account in advance.

Materials and tools required to assemble a vibrating table: prices and characteristics

In order to assemble the structure yourself, you will need a grinder, a welding machine, a drill, as well as the ability to handle them. Let's look at the list of necessary materials that can easily be found among handheld materials.

An example of the implementation of a vibrating table for the production of paving slabs with a molding attachment

For the countertop, you can use plywood or a sheet of metal of a suitable size. In this case, the plywood sheet should be 14 mm thick. This will allow more vibration to be transmitted due to the small thickness, but at the same time provide the necessary structural strength. In addition, in this way you can significantly reduce the noise level during operation of the device. If a metal sheet is used, then its thickness should be within 5-10 mm.

The cost of a sheet of plywood of the required thickness, made from birch veneer, will be about 650 rubles with a standard size of 1525 × 1525 mm. But a sheet of hot-rolled metal 5 mm thick will cost more.

Helpful advice! If a metal sheet of smaller thickness is available, it can also be used by reinforcing the structure with metal corners or pipes welded in the center of the sheet and around the perimeter.

Weights are used to excite vibrations in the vibration mechanism of the vibrating table

Metal corners measuring 50x50 mm. They will be required to create the edging of the tabletop and during the operation of the vibrating table will not allow the molds for the production of paving slabs to move from the surface as a result of vibration.

Channel for mounting the motor It will need to be welded in the center of the back side of the tabletop, having previously drilled holes that will be used for the bolts holding the motor.

Metal pipes for table legs. Typically, elements with a thickness of 2 mm and a size of 40x40 are used for this purpose.

The reliability of the fastenings of all elements of the vibrating table ensures the correct operation of the device, the quality of the manufactured products and the long service life

Pipes for forming the upper and lower parts of the frame. Since the main load will fall on these elements, it is worth choosing a fairly durable material - 40x20 and 2 mm thick for the upper part and at least 20x20 of the same thickness for the bottom. .

Metal plates that will be used as a sole for supporting legs. For this purpose, pieces of metal measuring at least 50×50 and 2 mm thick are suitable.

You will also need a plate for installing electrical equipment and springs, which are designed to provide vibration. It is quite possible to purchase these elements at a dismantling station. Numerous reviews indicate that the ideal option is to use springs from mopeds, the cost of which with a height of 113 mm and a diameter of 54 mm will be about 500 rubles. They are installed in the corners of the table, and if the surface area is large, another one is additionally mounted in the center.

Important! If an additional spring was installed in the center of the tabletop, the motor mounting location and support configuration will be changed.

A vibrating table for making paving slabs can be made from scrap materials without significant financial investment.

Additional aspects to consider when choosing materials for a vibrating table

In addition to the above materials, it is worth carefully selecting other components that, although not visible, largely determine the quality of the device:

bolts for fixing the springs. This element acts as a cup for the spring, so it must have the proper strength. Sometimes pipe blanks 50-70 mm long are used for this purpose. It is important that their diameter exceeds the diameter of the spring by 5-10 mm;
bolts and washers (usually 4 pcs.), which will be required to fix the engine;
electrical cable, which must have a sufficient cross-section. It is also worth considering the presence of an outlet and a circuit breaker in the immediate vicinity.
Important! If the diameter of the homemade glass significantly exceeds the diameter of the spring itself, this will lead to uneven vibration. As a result, the spring will quickly wear out, and the movement of the table can more likely be called rocking than vibration.

Design diagram of a vibrating table with a sifter

Production of paving slabs at home: how to choose an electric motor

Let's consider the two most popular options: their cost and characteristics:

IV-99 E with a power of 0.5 kW. Its weight is 14.5 kg, rotation speed is 3000 rpm, driving force is up to 5 kN. The device receives power from a 220 V network. You can purchase it at a price of 7,650 rubles.
IV-98 E is a more powerful model (0.9 kW), which has a greater weight - 22.5 kg and a driving force of up to 11 kN. In this case, the rotation speed is also 3000 rpm. But the main difference between this model and the previous one is the presence of unbalances on the rotor, which rotate together with the rotor shaft. A regular 220 V network can also be used for power supply. The cost of this model is 8,540 rubles.

This will be more than enough to produce a small amount of tiles, but if you want to organize a small paving slab plant in your workshop, then it is better to pay attention to the IV-104 B model, with a power of 0.53 kW. To power it, you will need a 380 V network, but this will make it possible to achieve a driving force of 6.3 kN.

But there are cases when we are talking about making a very small amount of paving slabs for paths in the country, and purchasing a motor for this purpose is simply unjustified. In this case, craftsmen use an engine from an old washing machine or pumping station as a basis. In this case, you will have to spend much less money, paying only the turner for some alterations, if necessary.

The only significant drawback of this solution is the fragility of old engines. They are extremely rarely able to withstand more than three dozen work cycles. After this, the axle becomes loose or the bearing completely jams. Therefore, if you plan to produce a large number of tiles, it is better to purchase in advance a more durable motor that can last the required period of time.

Important! The main task of the engine is to ensure uniform vibration of the surface, since otherwise the solution may boil in the container, which will not lead to compaction, but, on the contrary, to increased fragility of the products.

Even taking into account the need to purchase all the necessary elements, making such a structure with your own hands is much cheaper than buying a vibrating table for paving slabs. The power of the electric motor determines the operating time of the machine and the required amount of paving slabs produced

DIY vibration table for paving slabs: rules for assembling the structure

After all the necessary materials have been purchased, all that remains is to assemble the structure together. But in order for the resulting device to serve properly for many years, you must adhere to the following rules:

Methods for unbalancing a vibrating table motor

Depending on where exactly the engine is installed, it is necessary to unbalance the belt drive unit on the tabletop or the pulley. You can do this in several ways:

place a round pulley on the shaft, which has a section of its circumference drilled or ground off;
experimentally select a nut of suitable size and weight and weld it onto the pulley;
put the coupling on the shaft, having previously welded a bolt with two nuts placed transversely onto its end. Due to the fact that the nuts can be moved along the thread, unbalancing occurs.

For reliable long-term operation of the vibrating table, it is worth using steel elements and a cooking apparatus for fastenings

As you can see, making paving slabs for your dacha yourself is a completely feasible task if you spend time and effort studying the issue and assembling the necessary device. Although it should be noted that with the help of such a vibrating table it is possible to organize, for example, a small production of polymer-sand paving slabs.

Currently, it has become very popular to make concrete products with your own hands: window sills, steps for stairs, paving slabs, countertops and much more. Ultimately, the quality of construction products directly depends on how ideal the components of the solution are. We suggest you make a device - a vibrating sieve with your own hands, with which you can quickly sift cement, sand, gravel and other bulk materials.

What does a vibrating sieve consist of?

The proposed design is quite easy to repeat, and it does not require a lot of time and money. Components of a homemade vibrating sieve:

the base (frame) to which all other structural elements will be attached;
engine (in our case, a power saw or electric drill);
external box (box) with rollers;
internal folding box (box) with a bottom made of metal mesh;
“rails” for moving boxes;
a guide chute for collecting sifted material;
external unit for adjusting the speed of movement of the electric saw (if necessary).

For manufacturing you will need the following materials:

wooden blocks (60 x 60 or 60 x 70 mm);
boards or plywood (thickness 18-22 mm);
4 furniture casters;
6 rubber shock absorbers;
piano loop;
metal corners and plates (for connecting wooden parts and increasing strength);
hardware: screws, bolts, nuts and washers.

Manufacturing procedure

Drawings for making a vibrating sieve yourself are easy to do yourself. For clarity, we present our schematic plan of the future product.

Our vibrating sieve has the following dimensions:

general dimensions of the base (frame): length – 1350 mm, width – 560 mm, height – 850 mm;
outer box dimensions: length – 610 mm, width – 455 mm, depth – 120 mm;
The dimensions of the folding box (internal) are selected in such a way that it can be tipped over and freed from screenings without much effort and friction against the walls of the outer box.

First, we make a frame of the required size from bars and boards. We fasten the wooden parts using metal corners, plates and self-tapping screws. Then, on the inside of the base, we attach guide bars - “rails” (we use 6 metal angles), along which the boxes will move (to increase the anti-vibration qualities, we install rubber shock absorber supports between the guides and the corners). We fasten the guides together with transverse bars, similar to the principle of sleepers between railway rails. We make a platform at the top of the frame and attach the electric saw to it.

Then we make a structure that consists of two boxes inserted into each other and fastened together with a piano loop: one without a bottom (external), and the second with a fixed metal mesh instead of a bottom (internal). The size of the mesh cells is selected based on the size of the fraction of bulk material that we want to obtain in the end. We attach four casters to the “bottomless” drawer from below (you can buy them at a furniture accessories store). We attach the hacksaw blade to the outer drawer using a spring bracket and bolts (10 mm). The forward motion from the blade is transmitted to the boxes, which move back and forth along two guides. As it moves, the mesh vibrates and the bulk material poured on top is sifted.

A chute made of plywood, through which the sifted material falls into the collection container, is rigidly attached to the base (it can also be made of sheet iron or roofing tin).

The power consumption of a homemade vibrating sieve depends on the model of the electric saw used. The greater the power of the electric saw, the larger the dimensions of a homemade vibrating sieve can be. And this in turn will increase the productivity of the entire installation.

External speed control unit

Since the electric hacksaw blade moves too quickly, we install a separate speed control unit (with a built-in switch and automatic fuse), which will help you choose the optimal mode of forward movement of the vibrating screen and adapt its operation for different bulk materials. In this case, the power saw switch is locked in the “on” position. You can dispense with a separate adjustment unit if you use a fairly “low-speed” electric saw as an electric motor.

It is better to cover the electric saw itself with a protective cover to prevent the ingress of cement, sand or other dust (easy to make from a plastic bottle of a suitable size). With fairly simple changes in the design of the frame, you can use an electric drill (preferably with a built-in rotation regulator) as the main engine, installing a pin with a reciprocating eccentric attached to it instead of a drill.

The video shows another simple design of a vibrating sieve, using an electric jigsaw as a motor:

In custody

Using our recommendations, you can easily make a device for sifting building materials. A hand-made vibrating sieve will allow you to sort bulk materials such as sand, cement, gravel, expanded clay, chalk, lime and much more into fractions.

To produce various concrete products (blocks, paving slabs, paving stones), in addition to molds, a special vibrating table is required, with the help of which the mixture is compacted, air bubbles are removed, and the structure of the material is improved. Massive industrial equipment is installed in factories. For independent production of concrete products, it is quite possible to make a vibrating table with your own hands.

Operating principle of the vibrating table

A vibrating table is a technical device consisting of:

Support stand and frame.
The work surface is a steel table top, which is attached to the base using pins or a weld through metal springs.
Electromechanical vibration motor.
Starting devices.

A vibration table on springs operates according to the following scheme: the base is fixed on the floor, a form filled with concrete mixture is placed on the tabletop, and the vibration motor is started for a certain time. After stopping, the container is removed. The work of a self-made vibrating table is based on the same principle.

Industrial vibrating tables differ in:

1. Dimensions of the working surface. The larger its dimensions, the more complex products can be produced.

2. Power. The performance of the installation depends on this parameter. As a rule, the accompanying documentation indicates the approximate service weight. Thus, a 3,000 W design is able to work with forms filled with concrete mixture with a total weight of up to 300 kg. This is about 4 square meters of paving slabs 30 x 30 cm in one go.

3. Amplitudes. Almost all units are equipped with a vibration frequency control function, which is very convenient when switching from one type of product to another.

In addition to paving stones for paving roads, vibrating tables are used for the production of artificial stone, fence panels, blocks, decorative figured products (statues, bas-reliefs), etc. The price of industrial devices starts from 30,000 rubles. Used units with a good service life are 30-60% cheaper.

There are two main subtypes of vibrating tables:

Molding, intended for the production of a concrete element.
Unmolding, necessary for removing the finished tile. This design is equipped with special frames that help remove products from the mold. A nozzle with holes that follow the contours of the product being removed is placed on the work table. Due to vibration, it is easily separated from the container and falls into the operator’s hands or onto the conveyor belt.

Self-made paving slabs are usually easy to remove, so only a forming vibrating table is required.

Assembling the table yourself

The design is quite simple, but the difficulty lies in selecting the optimal vibration amplitude. It is important to achieve not only ideal speed, but also uniformity of movement, since otherwise the concrete mixture will not be compacted, but rather, oversaturated with air. This is the so-called boiling process.

To make a homemade vibration table at home, you will need the following materials and tools:

1. Metal sheet with a thickness of 6 mm and above for a worktop.

2. Springs and “cups” under them are made of steel.

3. Steel angle and/or pipes for the frame, supports, as well as plates for attaching the frame to the base using anchors.

4. Electric motor. It can be purchased separately or made independently. To make a small volume of paving slabs with your own hands, it is enough to buy a single-phase vibration motor with a power of no more than 700 W.

5. Welding machine.

6. Electric drill.

7. Grinder with metal discs.

8. Hardware for the engine and fastening the vibrating table to the floor. The kit must include lock nuts, cotter pins and other fasteners, since any threaded connections quickly loosen under the influence of vibration.

To adjust the speed of movement, you can purchase and install an electronic AC potentiometer together with the vibration motor. The sophisticated mechanism of the vibrating table will allow you to deal with different types of mixtures.

Before you start work, you need to make a drawing of the vibrating table, mark the fixing points of the electric motor on it, determine the dimensions of the installation and components. Thus, the optimal height for the structure is considered to be 80 cm. The width and length are calculated based on the size of the forms. An approximate diagram of a vibrating table for paving slabs is presented below.

Having prepared everything you need, you can start making a vibrating table:

1. Installation of the base.

Four equal sections of an angle, pipe or steel profile are welded into a frame, to which the legs with anchoring plates attached to them must be welded. If this is not done, then the vibrating table will simply “walk” during operation. It is advisable to enhance the stability of the structure with an additional axis made of metal tubes (along the perimeter or crosswise). “Glass” should be welded to the frame on the reverse side - sections of pipes up to 7 cm high, the diameter of which is 2-3 mm larger than the cross-section of the spring. Their position must be clearly adjusted, without distortions or displacements, since the efficiency of the installation depends on this. If there are no “cups”, then the springs are welded to the frame.

2. Making a vibrating table top.

When the monolithic steel sheet is thin, it is strengthened by welding the transverse corners. Sections of channel bars with holes are attached to the main working surface by welding, onto which the vibration electric motor will then be attached. Additionally, along the perimeter of the tabletop, edges made of steel angles with dimensions of at least 50x50 mm are installed.

3. Assembling the vibrating table.

The engine is fixed to the channel frame, then the support stand and the table itself are connected - in the area where the spring blocks fit, you need to make a weld. The finished vibrating table is fixed with anchor grips and tested for performance. If necessary, the vibration amplitude is corrected (using an eccentric mounted on the shaft of an industrial vibration motor), spring stiffness and stability in general.

Vibrating tables made at home are not characterized by high productivity and safety margins. However, this is quite enough to meet your own needs for a summer house or home. And the cost of such a design is 5-12 times cheaper than an industrial installation.