How to choose a deep vibrator for compacting concrete mortar: TOP 10 popular models

For different types of work in construction, different types and classes of equipment are used. In the production of monolithic concrete slabs, elements of reinforced concrete structures, walls, strip foundations and interfloor ceilings, high-quality compaction of the concrete-crushed stone mixture is necessary. During the construction of buildings and structures, concrete vibrators of various types are used for this purpose. Professionals, as a rule, use vibration compactors, surface vibrators or high-frequency vibrators with a flexible shaft. Each of these types of equipment has its own reasons for use.

How does a deep concrete vibrator work?

The key condition for creating vibration vibrations is an eccentric shaft rotated at high frequency.
In a deep vibrator, it is located in a mace (vibrating tip) - a massive steel cylinder attached to the end of a flexible shaft. The motor rotates the vibrating shaft through a steel cable covered with a plastic or rubber sheath. Vibrating tip device

Working with a deep vibrator is not difficult. Having immersed the vibrator into fresh concrete, the device is turned on and the mixture is compacted until it stops settling in the formwork. After this, the tool is alternately immersed in adjacent sections of concrete, repeating the work process.

If electric, which one?

Despite all the advantages of pneumatic equipment, most often construction sites are adapted specifically for the use of electrical appliances, and builders opt for electric deep vibrators. They are more intuitive to connect and, ultimately, it seems much easier to restore the cable than a pneumatic line. However, which one to choose if there are so many of them?

Step 1. Internal vibrator with flexible shaft (classic) or high-frequency internal vibrator?

Internal vibrators with a flexible shaft differ from high-frequency vibrators in design: they consist of a motor to which a flexible shaft is connected (a hose) and a vibrating tip. This set is heavier, as it consists of: 1. An external asynchronous electric motor with an operating voltage of 50 Hz. Such a motor is several times heavier than the motor used in high-frequency vibrators (an asynchronous electric motor with an operating voltage of 200 Hz built into the vibrating tip).

2. Heavy sleeve , which is a flexible shaft. It consists of a metal spiral-reinforced hose and a steel core. These components make such a sleeve significantly heavier than the sleeve of a high-frequency deep vibrator, which consists of a hose reinforced with a thin metal mesh and wires running in it.

However, in the case of a vibrator with a flexible shaft, each of the parts of the kit - motor, flexible shaft or mace - can be replaced separately if necessary (failure/change of task).

For example, if at a site there is a need to compact concrete in reinforcement with a reinforcement pitch of 7 cm and 10 cm, then we do not necessarily need to buy 2 different vibrators, but rather buy 1 motor and 2 different sets of pins and sleeves (38 mm and 51 mm).

A high-frequency deep-well vibrator is lighter than its classical counterparts, since its motor is located in the vibrating tip and the sleeve is just an ordinary hose with wires running through it. This deep vibrator:

• convenient to use,
• has a greater working resource and
• can be made with almost any sleeve length (up to 20m).

However, if the equipment fails, the entire set must be replaced. Also, if there are tasks at the site that require the use of different vibrating tips, you will have to buy 2 deep vibrators, which is not always convenient or justified from the point of view of saving money.

Please note that sometimes such a vibrator is called an ultrasonic concrete vibrator

Step 2. Deep vibrator 42V or 220V?

Often, buyers do not pay attention to such an important factor as the operating voltage of the deep vibrator and purchase the option at the most attractive price. However, in the future the situation may develop in such a way that the new equipment will be completely unready for connection or will not be able to be used at a particular facility at all! The fact is that all electrical appliances at 42V (3ph) do not operate directly from the network, but are connected through a step-down transformer (in the case of internal vibrators with a flexible shaft) or through a frequency converter (high-frequency internal vibrators). When buying a 42V deep vibrator, you should always keep in mind that you will also need additional equipment to connect it.

All 220V vibrators can be connected directly to a single-phase household network and work. This is convenient because: 1. 220V voltage is available almost everywhere, 2. direct connection is understandable for most users of electrical appliances and 3. these deep vibrators can be used at various objects without thinking about their preparedness for connecting industrial equipment. However, from the point of view of electrical safety, 42V deep-well vibrators are much more advanced, as they are absolutely safe for humans. In addition, purchasing 42V deep vibrators can actually be more profitable, since if one of the units fails (deep vibrator or frequency converter / deep vibrator or transformer), only it itself is replaced. For example, in the event of a failure of a 220V high-frequency deep-well vibrator with a built-in Frequency Converter, the entire vibrator will have to be replaced, while when using a 42V deep-well vibrator connected to a Frequency Converter, only the vibrator will have to be replaced, which costs almost 2 times cheaper than its counterpart with a built-in inverter.

Step 3. Imported or domestic?

And finally, a question that is asked by almost all buyers, from individuals to large construction companies. Which deep vibrator is better to buy: imported or domestic?

When choosing, try to proceed not from your desires, but from your goals and existing circumstances. There is absolutely no point in purchasing a deep-well vibrator, designed for high productivity and a colossal working life, if you are faced with the task of preparing the foundation for a small private house, bathhouse or garage. You can get by with an inexpensive portable deep vibrator.

Also, often inexperienced builders or general workers work at construction sites, who do not always handle the equipment carefully and do not comply with even basic standards of use (throwing deep vibrators from a height, not putting them in a dry place when it rains, not cleaning them after work, etc.). Why the purchase of expensive construction equipment may not be justified, since it will not last as well and as long as we would like.

At the same time, it is worth paying attention to the fact that the equipment is original (see the leaflet “Beware of counterfeit!”), purchased from official dealers or manufacturers, and has a warranty and service centers in case of failure. In addition, try to comply with the operating conditions of the deep vibrator, ensure its timely lubrication and cleaning of contaminants. With the correct operating mode, both domestic and imported equipment will serve you for a long time, without unwanted interruptions in operation.

Purpose

The prepared concrete solution, despite thorough mixing, remains heterogeneous, which reduces the characteristics of the monolith. In addition to cement laitance, crushed stone and sand, it contains water and air bubbles.

If concrete is simply poured into the formwork, the result will be a structure that is heterogeneous in structure. The use of a vibration compactor for concrete increases the fluidity of the mixture without additional additives, due to the movement of its components. Air inclusions are pushed onto the surface of the monolith, and the fillers are evenly distributed throughout the volume.

After vibration compaction, the volume of concrete poured into the formwork is reduced by 30%. This effect occurs due to getting rid of air-filled voids and more dense packing of sand and crushed stone. As a result, the strength of the massive structure reaches its maximum value and high density for a given grade of concrete.

By purpose

When choosing a sex toy, you shouldn’t grab the first hare with bright ears you like. First you need to decide for what purposes the device will be used and choose from a specific category:

• vaginal vibrators are used only to stimulate the vagina and cervix;
• Anal , unlike vaginal, have a smaller size, diameter and a special lock that does not allow the device to slip inside;
• clitoral - this is a broad category of devices that includes vibrating bullets and mini vibrators;
• the G-spot vibrator has a special curved shape, which guarantees a woman the most exciting experiences and multiple orgasms;
• double penetration vibrators help a woman discover new erogenous zones and receive previously inaccessible pleasures;
• triple stimulation devices: vagina, anus and clitoral massage are suitable for experienced women who can cope with a rather difficult toy to control;
• a vibrator for concealed wearing in your own body is a real find for lovers of thrills.

A separate category of sex devices includes vibrators for couples. They have a special anatomical shape for simultaneous stimulation, for example, of her clitoris and his scrotum.

Advice for beginners: don’t try to buy the most sophisticated vibrator. You need to explore your body carefully, delicately and tenderly, and your awakened sexuality itself will tell you what it is missing.

Types of deep concrete vibratory compactors

There are four types of power plants that activate vibrations of the vibrating tip: an electric motor, a gasoline and diesel engine, and an air compressor.

Electric deep vibrators are used more often than others, since most construction sites have a central power supply.

Electric depth compactor with a set of vibrating tips

Gasoline and diesel submersible vibrators are completely autonomous and indispensable at sites located far from power lines.

Gasoline deep vibrator

Pneumatic installations are not widely used in private construction.

In recent years, battery-powered immersion vibrators have appeared on the market. They are not inferior to gasoline ones in terms of autonomy, but are much lighter and more compact.

Cordless deep vibratory compactor

During the Soviet period, vibrators operating in the same frequency range were used on construction sites. Today on sale you can find devices that create vibration vibrations of low, medium and high frequencies, as well as multi-frequency installations. This gradation is due to the fact that the concrete mixture contains particles of different weight and size. They require different vibration frequencies for optimal compaction.

Based on the type of alternating voltage used, electric concrete deep compactors are divided into two types: three-phase and single-phase. The first ones are more powerful and belong to the category of professional tools. The latter are indispensable in individual construction, where there is no three-phase power line.

Differences between deep vibrators by power drive

The deep vibrator may include the following types of drives:

• Diesel;
• Petrol;
• Electric.

Diesel or gasoline drives are equipped with engines based on the principle of internal combustion of the corresponding fuel. The huge advantages of such drives are their autonomy and the ability to operate in any environmental conditions. The disadvantage is the regular waste of money on diesel or gasoline fuel. Due to the release of toxic gases resulting from the combustion of flammable fuel, deep-well vibrators with diesel or gasoline drives are not recommended for use in closed and unventilated areas to eliminate the possibility of poisoning of working personnel. If we compare diesel and gasoline equipment, then a vibrator operating on the basis of diesel fuel is much more powerful and economical, but more expensive in price.

The electric drive that powers the deep vibrator is very popular and widespread due to its simplicity and operation. Electric motors from a general network of 220 V operate directly from an outlet, and motors with a voltage of 380 V operate through a transformer that reduces the voltage to 48 V. The disadvantage of such a deep vibrator is the inability to operate the equipment without connecting to an electrical network. Connecting a vibrator to an electricity generator will help solve this problem.

Recommendations for working with a submersible vibrator

Whatever model of vibratory compactor you choose, deep concrete vibrators have certain technical requirements. They are usually indicated in the instructions, but it is worth remembering that:

• the vibrating tip is immersed in the mixture exclusively vertically for at least 1/3 of the club;
• is removed smoothly, without jerking;
• in order to efficiently process the entire area, the distance between dives should be no more than 8 club diameters;
• areas for compaction must overlap each other;
• The duration of use of the vibrator depends on the quality of the mixture and the size of the mace. The thicker the concrete, the longer the work required;
• the tip should not touch the reinforcement and formwork - safe distance - 7 cm;
• the device should not be started idle, without solution;
• when gradually infusing the solution, the thickness of each layer should not exceed half a meter.

Despite the presence of different types of concrete vibrators, their design is similar. The following key equipment components can be identified:

• drive unit;
• unbalance (unbalancer);
• transmission shaft;
• vibrator tip.

Common structural elements for different types of vibrators are shown in the photograph below.

A drive is a unit with the help of which useful work is performed. It drives the unbalancers and the shaft. A vibrating tip (also known as a vibrating mace) acts directly on the poured concrete. Depending on the type of vibrator, its shape differs. The following varieties of this node are distinguished according to this criterion:

• vibrating bayonets;
• vibration shovels;
• vibration rods.

The shape of the vibrating tip determines the area of ​​work performed with concrete, as well as their volume. The design of two types of vibrator heads is shown in the photograph below.

Deep (internal) vibrators are equipped with a flexible shaft. Its length determines the maximum depth that can be reached by the equipment used when vibrating concrete mortar. The flexible shaft driven by the engine is a steel cable covered with a rubber or plastic sheath.

The operating principle of various types of concrete vibrators boils down to the effect of vibrations on the working solution. This leads to compaction of the filler (crushed stone, sand) and squeezing out air. The structure of compacted concrete becomes more uniform, its density and strength properties increase.

The following factors should be taken into account:

• the required degree of autonomy in performing work;
• distance from the power grid;
• explosive working conditions;
• equipment performance;
• upcoming filling volumes.

You can buy pneumatic tools if you have a lot of work to do. It should be taken into account that for its normal functioning it requires a continuous supply of air, the temperature of which must correspond to the value specified in the operating instructions.

To use a power tool, you must have access to a single-phase or three-phase network (depending on the type of electric motor installed). This is not always possible under construction conditions for various reasons. But from the point of view of price and performance, you can choose the equipment that has the optimal technical characteristics, both for home and professional use.

Fuel units are the best choice in terms of mobility. You can choose the model of the required power for different types of work.

In private and industrial construction, a submersible vibrator is more often used; other models have similar operating principles. The design is based on a unit that creates vibration vibrations of a frequency sufficient to squeeze out air bubbles and foreign inclusions and compact the fillers.

In the design of vibrators, the main unit is a shaft with an eccentric, which is immersed in concrete. Rotates from a drive connected to a gasoline, diesel, electric or pneumatic motor. The rotation is transmitted through a strong but flexible steel cable. The shaft itself is located in a vibrating tip or mace - a steel cylinder and is attached to the end of a rotating cable covered with a sheath.

We suggest you read: How to pour concrete in cold weather with salt

The source is a single or three-phase electric motor of 220 V or 42 V. There are portable models with rechargeable batteries. For large volumes of concrete, it is better to work with gasoline internal combustion engines. The most productive devices are connected to diesel engines; they are designed for compacting large masses of concrete.

Device: 1 - mace (vibrating tip), 2 - flexible shaft, 3 - drive

The circular vibrations that are formed due to the operation of the engine are the vibration that is transmitted to the concrete mixture.

It forces air to rise to the surface, compacting the concrete and helping it penetrate into cracks and spread evenly.

The device is a cable with a vibrating mace at the end, connected to a power source.

There are several types of vibrators, but they all work on the same principle and the ultimate goal is maximum compaction of concrete for even and reliable pouring.

• The tip of the tool must be inserted vertically into the concrete, without horizontal movement.
• The distance between the entry points should not exceed 5 diameters of the vibrator head.
• The duration of compaction depends on the power of the tool and the consistency of the concrete mixture. The optimal cycle duration is from 10 to 20 seconds (at the moment cement laitance appears on the concrete, vibration stops).
• During operation, the vibrating tip should not touch the reinforcement and formwork.
• Remove the vibrating mace slowly, using oscillatory movements down and up. This is necessary to prevent air from entering fresh concrete.

The Importance of Specifications

Vibrators are an electronic device, so when choosing, you need to focus on the parameters. They are indicated in a prominent place so that the buyer immediately pays attention and draws the right conclusions.

Nutrition

Models produced in the 20th century were connected to the home network. Today such performance is found only in sex machines. Because it requires high energy to operate. The most preferable option is battery-powered devices. The peculiarity of the first model is the saving of nutrients and the ability to recharge. Women consider this design optimal, since it does not have a high power loss during discharge, which is often found in some battery-powered vibrators.

Operating modes

Budget models provide only one speed, which is constant. The disadvantage of single-speed devices is that they quickly become boring. Multi-speed products are in high demand. The cost of the option is several times higher, but in return the user receives several auxiliary functions:

• The pulsator creates weak but pleasant shocks that have a positive effect on the erogenous zones;
• Vibrations: causes uniform waves spreading over all areas;
• There is a rotation function around an axis, which allows you to touch every point.

Speed ​​control

There are two ways to switch:

• Manual. There are corresponding keys on the device; by pressing them, the user increases or decreases the vibration level. The disadvantage of execution is that you should constantly pick up the vibrator and look for a certain mode.
• Remote toys do not have this disadvantage. Control is carried out using a wireless interface (radio waves or Bluetooth). All sensations are available in real time and there is no need to be distracted by settings.

External design

Texture is important when choosing a vibrator. It is easier for experienced users to determine the surface, but beginners have difficulty. The assortment includes classic options that have a smooth and even surface, as well as a full-fledged imitation of the male organ with pronounced veins. There are also models with antennae, balls or ribs. Here the approach is individual for everyone, it all depends on personal preferences and tastes.

Water ingress protection

If a woman does not want to play only in bed, but prefers to enjoy the process in a relaxing bath or shower, then waterproof vibrators are purchased. The cost of such a product is higher, but this is compensated by the unforgettable sensations.

Dimensions

As with the previous points, the choice of dimensions is approached individually, focusing on tastes and experience. There are four varieties in total:

• Small – 4-13 cm;
• Average – 14-21 cm;
• Large – 22-26 cm;
• Very large - over 27 cm.

The thickness of the toy starts at 1 cm and continues up to 10 cm or more. There is no specific bar here, it all depends on skills and physiological characteristics. Beginners are not recommended to start with large sizes, preferring medium or small sizes with a thickness of 3-4 cm. As you gain experience, you can start experimenting.

Main characteristics and features of choice

When choosing the type of concrete vibrator suitable for the required work, you should focus on the following technical characteristics of the tool:

• vibration frequency along with amplitude;
• installation power;
• weight;
• shape and size of vibrating tips (the criterion is important only for deep-well devices);
• shaft length;
• seal diameter.

The amplitude of oscillations is related to their frequency: the lower the first parameter, the higher the second; the converse is also true. You should purchase high-frequency units if in most cases you need to compact concrete solutions with fine-grained fillers. Mid-frequency units will better compact medium-grained compounds, and low-frequency units will better compact coarse-grained compounds. Medium frequency compactors are also a good option for home use.

Performance depends on power. To work at home, a 750-1500 W tool is sufficient. Professional activities require the use of units with a power of 2 kW or more.

Hand tools are suitable for private construction: due to their low weight (up to 6 kg), they can be used by one person. It is also convenient for transportation and storage. Powerful, professional vibration installations allow you to perform a significant amount of work, but the operation of the units requires the involvement of several people in the process.

The dimensions of the vibrating tip affect the freedom of its movement inside the solution. This factor must be taken into account when working with reinforced structures. To compact concrete pouring without reinforcing bars, it is better to use wide tips (up to 110 mm in diameter). This will improve the performance of the equipment.

The depth of immersion of the vibrating tip into the poured concrete solution depends on the length of the flexible shaft. A tool with a short shaft is not suitable for the construction of massive structures, because it will not be possible to compact the concrete as required. This will reduce the quality of the frozen monolith.

The diameter of the seal is a parameter that determines the distance over which vibrations diverge from the vibrating tip. The larger this parameter, the more productive the equipment used, because a larger volume of poured mixture can be compacted at a time.

The first indicator that you need to pay attention to when choosing a deep vibrator is power. The time of continuous operation of the tool depends on it. For domestic needs, 750-1500 watts will be enough. To work on a large construction site, you will need a vibration compactor with a power of at least 3-4 kW.

The second operating parameter is the vibration frequency of the tip. High-frequency devices (vibration frequency from 10,000 vibrations/min) are optimally suited for compacting fine-grained concrete. Their oscillation amplitude is very low. This combination of frequency and amplitude allows all concrete particles to be compacted as compactly as possible.

For concrete mixtures of large fractions, it is better to use low-frequency deep-well vibrators (up to 3500 vibrations/min.).

For use in home construction, it is better to buy a portable concrete vibrator of medium frequency (3500-9000 vibrations/min). It works equally well for both fine-grained mixtures and concrete with coarse crushed stone.

The second indicator is the weight of the device. For private construction, a manual electric vibration compactor is optimal. You can work with it without an assistant. This tool takes up minimal storage space and is easy to transport.

The weight of a manual concrete compactor does not exceed 6 kg. More powerful vibration units weigh about 20 kg. They are used by small construction crews. To operate professional equipment (weighing up to 100 kg), several people are needed, and transporting it requires a sufficiently spacious vehicle.

When choosing a submersible vibrator, you need to pay attention to the size and length of the working tip. To compact reinforced concrete, it is better to buy a vibrating mace of small diameter (25-50 mm). For working with unreinforced concrete, a vibrating tip with a larger diameter (up to 110 mm) is optimal. It will compact the mixture better and faster than a thinner vibrator.

To work in deep formwork (filled piles, columns, high grillage), the length of the flexible shaft of the virator is selected according to the following calculation: the formwork height is 1 meter.

There are 3 types of concrete vibrators, differing in design:

• A deep vibrator immersed in a freshly poured solution. It is used in construction, when concreting large monoliths and foundations of buildings and structures.
• An area vibrator for concrete compaction is used when pouring floors and roads. A surface vibrator for concrete is an oscillating plate or strip. By acting on the top layer, the slab compacts the entire monolith.
• External type vibrators are fixed to the formwork. They are often used in the construction of columns with dense reinforcement.

We suggest you familiarize yourself with: Setting concrete at 5 degrees – Pouring concrete at 0 degrees

Vibrators differ in drive type:

• Electric - have a relatively small mass and work in any conditions. 220 volt vibrators have the lowest power, three-phase options are massive and require special conditions to provide power.
• With internal combustion engines - high-power petrol and diesel models. They are quite bulky and require professional maintenance, but can work on sites without electricity. Their high power makes it possible to compact large monoliths.
• Pneumatic models operate from a compressor, the force is transmitted through a high-pressure hose, and are used in reinforced concrete factories; they are not widely used in construction.

Based on power, portable vibrators are distinguished with motors up to 2 kW. They are inexpensive, do not require professional training to operate, and are suitable for private construction. Professional vibrators have a power of up to 4 kW, can operate for a long time, and are used in industrial construction, in the construction of monoliths and in the production of reinforced concrete structures.

In addition, vibrators are classified according to shaft rotation speed:

• Low-frequency models with shaft speeds up to 3500 rpm provide a large amplitude of the vibrating shaft. They are used for concrete with coarse-grained fillers that have low mobility.
• Mid-frequency devices up to 10,000 rpm, the most popular option with universal characteristics, are used to work with mixtures of varying degrees of mobility.
• High-frequency vibrating tools, a frequency of more than 10 thousand revolutions per minute, with a small amplitude, are suitable for moving mixtures with fine grain fillers. Ultrasonic models have a similar area of ​​application.

These devices differ in shaft length, which can vary from 0.5 to 20 meters. This makes it possible to process volumetric monoliths, column foundations, and reinforced concrete structures. Submersible models come with a club diameter from 25 to 110 mm.

The thicker the reinforcement, the smaller the diameter of the club used.

To begin with, it is worth assessing the scope of work. If the choice fell on a device with deep immersion, pay close attention to the length of the hose (so that it provides a sufficient immersion length) and the diameter of the mace (this will depend on both the quality of work and speed).

It is also necessary to measure the distance between the reinforcement so that the club passes freely.

If the device is purchased with an eye to the future and for use on different objects, it is better to take the option with removable tips. It is more expensive, but much more convenient and mobile.

It is worth remembering that the task of the vibrator is to compact the concrete at the very bottom. Therefore, the size of the club will depend on the height of the layer. If it is about 40 cm, then the tip cannot be less than 35-30 cm.

Otherwise, the vibration wave will not reach the bottom. The size of the hose matters for ease of movement. As a rule, this data is indicated in the technical data sheet, which is always attached to the device.

Also, the subtleties and nuances of choice can be suggested by the employees of the online hypermarket of Ukrsnab equipment. You can buy vibrators for concrete on ukrsnab not only inexpensively, but also by carefully selecting them for your working conditions, so as not to make a mistake with the model, power, and additional functions.

In the store you will find the largest selection in Ukraine and the most affordable prices.

Further on in the video you can find useful information about which vibrator for concrete to choose.

Tips and tricks

You need to understand for what purposes you need this equipment. You can also use a homemade device if you need to do a small amount of work with concrete. However, using factory-made products will make it easier to resolve the issue of components.

In order to achieve the construction of reliable buildings and structures that are destined to last for many years, ignoring the vibrator when working with concrete mixture is not possible - this equipment has become integral in the process of modern construction. This is why it is so important not only to choose the best vibrator for concrete compaction, but also to match it to your specific goals and situation. It is important to accurately calculate the budget and not go into complete loss.

We suggest that you do not be deceived by the power of the vibrator or the popularity of the brand, but measure everything according to your own yardstick and select equipment for specific purposes. You should not take expensive professional equipment if the scope of work does not match. Try to determine the qualities you need, which the equipment should have specifically for you, and find the required unit in the rating lines.

Video - What is a deep vibrator for?

Famous brands, approximate prices

Among the domestic manufacturers of 220 V deep concrete vibrators, the following brands should be mentioned: Krasny Mayak, Energomash and Kalibr. Their products, with an optimal ratio of quality and price, are not inferior to foreign analogues in terms of performance parameters. Electromechanical vibrators from these manufacturers (power from 750 W, tip diameter 30-51 mm) can be purchased at a price of 4-5 thousand rubles.

Budget tool Energomash BV-71101

More powerful tools from Energomash and Krasny Mayak (power 1.3-2.0 kW, shaft length 4 meters, mace diameter 38-51 mm) are sold at prices ranging from 13 to 16 thousand rubles.

Red Mayak EPK-1300

Foreign brands that have earned the trust of customers are Wacker Neuson (Germany) and Makita (Japan).

Makita BVR450Z Cordless Vibrator

The German manufacturer is represented on the Russian market with professional high-frequency vibrators. Prices for them start at 50,000 rubles. The Japanese offer portable battery models, the average price of which ranges from 14 to 32 thousand rubles.

Wacker Neuson IREN 38

In the niche of inexpensive budget options are Chinese vibrators DDE and Sturm. For a device with a power of 0.85-1 kW (complete with a flexible shaft and tip), sellers ask from 4,000 rubles. The average cost of 2 kilowatt vibrators is 9-15 thousand rubles.

Sturm CV71101

Concrete compactors are produced by many domestic and foreign companies. Among the Russian manufacturers the following can be distinguished:

• Caliber;
• Red Lighthouse;
• Energomash.

The products of these companies are considered optimal in terms of price-quality ratio. Its production characteristics are not inferior to foreign models from the category corresponding to the parameters. Thus, a concrete vibrator with an electric motor for household use with a power of 0.75 to 1.2 kW and a vibrating tip diameter of 30-50 mm costs between 4000-5000 rubles, for example, Energomash BV-71101.

Vibrator Energomash BV-71101

A tool with greater power (from 1.3 to 2 kW), with a working tip with a diameter of 38-51 mm and a flexible shaft length of 4 m from the companies Krasny Mayak or Energomash is sold at a price of 13,000-16,000 rubles, for example, Krasny Mayak EPK-1300.

Deep vibrator Red Mayak EPK-1300

From foreign manufacturers, products from the following brands are popular among buyers:

• Makita;
• Wacker Neuson;
• DDE;
• Sturm.

The Japanese company Makita offers a fairly wide selection of cordless power tools in the price range of 14,000-32,000 rubles, for example, a portable vibrator with a Makita BVR450Z battery pack.

Vibrator Makita BVR450Z

The German brand Wacker Neuson is known for its professional high-frequency concrete compaction tools. The cost of such products starts at 40,000 rubles (for example, Wacker Neuson IREN 38).

Deep vibrator Wacker Neuson IREN 38

Equipment from Chinese companies Sturm and DDE is a budget option:

• models with a power from 0.85 to 1 kW, equipped with a vibrating tip with a flexible shaft, can be purchased at a cost of 4,000 rubles;
• the average price of 2 kW devices is in the range of 9,000-15,000 rubles.

We invite you to familiarize yourself with: Liquid glass processing of different coatings

The choice of a construction vibrator should be approached taking into account the volume of upcoming work operations. For domestic use, it is enough to purchase mid-frequency models of Chinese or domestic production, but regular work requires the purchase of a professional tool. If access to the network on a construction site is not a problem, then it will be cheaper to acquire electric models with the required performance.

Voting for the best deep-well vibrator for compacting concrete mortar

What kind of deep vibrator would you choose or recommend for compacting concrete mortar?

Red Mayak EPK-1300

25.00 % ( 1 )

Caliber VER-1500

50.00 % ( 2 )

Sturm CV7120

25.00 % ( 1 )

Hervisa Runner Plus 52

0.00 % ( 0 )

Red Mayak IV-98E

0.00 % ( 0 )

Wacker Neuson AR 36/3/230

0.00 % ( 0 )

Wacker Neuson AR 64/3/400

0.00 % ( 0 )

Makita BVR450Z

0.00 % ( 0 )

Grost VGB 4000 W

0.00 % ( 0 )

How to choose?

At the first stage, the type of vibrator for concrete compaction is selected - for screeds and other extended structures of small thickness, a surface type device is selected. The deep vibrator is widely used in construction work, when pouring foundations and other structures. External vibrators are used in the production of paving slabs; they are also necessary for compacting screeds and floors of relatively small thickness and large areas.

Another selection criterion is the power of the equipment, on which the time of its continuous operation depends. In private construction, the most popular are deep portable vibrators with a power of 0.8 to 1.5 kW. At dachas and other facilities where there is no centralized power supply, battery models can be used. In industrial construction, in the production of structures, devices for compacting reinforced concrete from 3 to 4 kW are more often used.

To obtain optimal mixture quality, the rotation speed must be taken into account. For concrete with coarse fillers, a low-frequency tool with a large vibration amplitude is used. If you use other models, the composition will separate and the quality will decrease. For private construction, it is better to choose a mid-frequency vibration compactor with a wide range of settings, suitable for solutions with different fractions of fillers. The high-frequency tool has a narrow specialization and is used for fine-grained concrete.

An important parameter is the weight of the equipment. For construction work on a personal plot, power tools weighing up to 6 kg are often purchased. Installations with higher power weigh up to 18-20 kg; this is semi-professional equipment used by private teams. The powerful professional tool weighs 90-100 kg and requires several people with special training to operate it.

When selecting a submersible vibrator, pay attention to the diameter of the mace, driven by a flexible shaft. Densely reinforced structures require vibrating tips with a diameter of 15 mm, options up to 50 mm are allowed. To compact a conventional unreinforced monolith, large diameters of up to 110 millimeters are used.

The choice also depends on the depth of the formwork. To use the vibratory compactor effectively, the drive tube must be 1 meter longer than this depth. This will leave freedom of maneuver, which is taken into account in the manufacture of vibration equipment.

What diameter of the vibrator tip of the deep vibrator should I choose, and what is the difference?

When purchasing a deep vibrator, some buyers mistakenly choose a vibrating tip based on its price or weight. From the consumer’s point of view, the logic of choice can be understood, because the product with the lowest cost is always more attractive, and the lighter weight of the device guarantees ease of use. But you should always remember that the performance of the vibrator itself depends on the diameter of the vibrating tip.

When purchasing a vibrating tip of a smaller diameter, you must be aware that it will also have a smaller radius of influence on the concrete mixture. Very often we are asked the question over the phone: “Why does my deep vibrator vibrate so slowly?” The answer is simple: “Because the diameter of your vibrating tip does not allow the concrete mixture to vibrate more actively.” Compare for yourself: a vibrator with a diameter of 51 mm has a radius of impact of 30 cm, while a 28 mm mace is only 18 cm. You may ask us, why then are vibrator tips of small diameters needed? The fact is that sometimes the reinforcement pitch does not allow the use of vibrating tips of large diameters, and builders are forced to use equipment with 38 or even 28 mm tips.

In order to find out which vibrating tip is suitable for your particular case, you just need to divide the reinforcement pitch (in mm) by 1.5. If the vibrating tip has a diameter smaller than the resulting result, it is suitable for you. For example : Reinforcement step = 10 cm, which means: 100/1.5 = ~67 You can use vibrating tips: 51mm, 38mm and 28mm.. We choose 51mm, since it has greater productivity and impact radius.

DIY concrete vibrator

Despite affordable prices, many craftsmen try to make a concrete vibrator with their own hands. The simplest method is to adapt a construction hammer for vibration compaction. It cannot be called very effective, but such a device will bring some benefit to a construction site.

The idea of ​​​​the modification is to install a standard lance with a metal thrust plate welded to it on a hammer drill with a power of 1.5-2 kilowatts. To vibrate the concrete, the plate is applied to the formwork and the tool is turned on in impact mode. The shocks of the lance are transmitted to the concrete through the formwork. For deep compaction, the lance is immersed in concrete and “bayoneted” it, periodically raising and lowering the hammer. Obviously, such a primitive mechanism can only be used to compact concrete, the thickness of which is equal to the length of the steel rod.

For deeper compaction, craftsmen create homemade vibrating attachments for drills, grinders, hammer drills and brush cutters. The basis of such structures is a steel pipe in which a homemade eccentric shaft is mounted on bearings. Through a coupling, it is attached to a flexible steel cable rotated by a motor.

It’s easy to make a reliable and functional vibrator with your own hands; all you need is a suitable power tool with variable speed control. Its drive must be reliable so that the bearing can withstand the eccentric runout.

From a drill

To make an internal vibrator for concrete with your own hands, you can use a regular drill. The easiest way is to purchase a ready-made nozzle with a mace. Such drives that transmit force to the shaft can be found in stores that sell ready-made equipment.

Most models have a hexagon on the shaft. If not, an adapter is made that is clamped into the chuck. The protective casing is a tube with several holes into which bolts are screwed. They tighten, resting against the body, which is quite enough.

You can also make a mace yourself. To do this, take a metal cylinder on which the bearings are fixed. A steel rod is passed through them, onto which a weight is welded in the part located inside the cylinder, providing an eccentric. When working with shallow-depth monoliths, the flexible drive that transmits force to the vibrating tip can be replaced with a steel rod.

From a hammer drill

This is the easiest way to make a deep concrete vibrator. Several rods are added to a regular lance to increase the processing area, and it must work with impact to create oscillatory movements. Such a vibrator is convenient in private construction, but it is difficult to use in reinforced massifs.

Using a scoop or trowel, you can make a surface vibrator for concrete from a regular hammer drill. It is enough to place the rod on a scoop or trowel in impact mode and place them on the solution. After switching on, the top layer will begin to compact.

For a homemade vibrator for concrete screeds and other large surfaces, you can take any motor and attach an eccentric weight to the output axis. This design is mounted on a flat plank, maybe even a wooden one, to which a handle is attached. The bar is installed on the solution, and the vibrator is turned on, vibrations are transmitted from the upper layers to the bottom of the structure.