Pumps for pumping concrete are compact. Screw pumps for supplying cement mixtures. Purpose and scope of the units

Concreting is the most common type of work in construction; it is used in most areas. To make working with heavy mortar easier, special devices for preparing and transporting cement have become widespread. The simplest but most expensive way to move mortar is with a concrete pump, but the cost of installation puts off small firms. It is possible to create a concrete pump with your own hands, and the costs will be 30-40% less.

Operating principle of a concrete pump

A concrete pump is a device with the sole task of preparing and delivering concrete from the mixing point to the target area. The installation is based on pipelines or concrete pipes that transfer the solution to any location. The greatest need arises in monolithic construction and when creating reinforced concrete structures.

Mobile concrete pump with high capacity on a crawler chassis

To understand the method of constructing the installation, you should know how a concrete pump works. The operating principle of a concrete pump is based on the properties of the liquid - it displaces and fills the changing volume of the system. If the volume is completely filled with the mixture, the solution is discharged into the concrete pipeline and then to the target area.

The design and principle of operation of a concrete pump is divided into several groups:

piston Perform a constant feed at various distances. Modern devices capable of displacing liquid to a height of 6-65 m. The volume of the supplied mixture reaches 180 m3/h. It is not durable due to the risk of small elements of cement getting in. Has a jerky delivery principle.
hose (screw). Provide continuous transportation. The gerotor pump for concrete provides a large volume of transported material. The installation is characterized by silent operation when pumping compounds of any consistency. If a blockage occurs, it is broken through by reversing the engine. A gerotor pump for pumping concrete has one significant drawback - the hose has a short service life, but the structure can easily be repaired independently;
with hydraulics. If there are hydraulic units for working with concrete, the devices become more durable and smoothly transfer the solution (without jerking or changing speed). Hydraulics help pump liquid to heights and long distances. The hydraulic drive is made as simple as possible; the device results in low energy consumption. Hydraulic pumps help pump mortar containing lightweight aggregates and are easy to operate and maintain.

Construction of a piston concrete pump

Drawings of concrete pumps for DIY production differ significantly depending on the type. All models differ in design, but have similar disadvantages to a greater or lesser extent:

the use of rolling stock is mandatory;
limited transportation range;
demands on the composition of the solution.

Price homemade concrete pump directly depends on the required power and pipe diameter. For larger pipes the pressure decreases. Recently, concrete pumps (the ability to supply concrete to a target area at various distances) and concrete pumps (smaller dimensions and mobility) have become very popular.

Unit types

Conventionally, devices are divided into 2 categories: with a mechanical unit or a hydraulic element. Rotary and piston concrete pumps have their own operational advantages and disadvantages.

Operation of the piston system

Piston systems operate on the same principle in all applications. At the stage of downward movement, a certain volume of liquid and concrete receiver is sucked in; in the second cycle of work, the solution is pushed out into the transfer sleeve. The mixture is supplied to the working area through the pipeline.

Mechanical driven piston concrete pump

The operation requires the use of a slide gate, which opens the concrete receiver during the suction stage and closes it during the ejection process. The gate regulates the direction of fluid flow. During testing, it is necessary to add machine oil to the working mixture.

The design includes a mechanical drive or a hydraulic system. Modern concrete pumps work with hydraulics, since the system is highly efficient, it leads to the formation more pressure and increasing pump power. Compared to the connecting rod assembly, hydraulic system provides a larger piston stroke range and smoother movements. A potential problem is loose contact between the piston and the chamber. Microscopic particles of cement penetrate between the piston and cylinder, accelerating wear many times over.

Devices with 1 cylinder are practically not used, as they lead to a pronounced pulsation of the solution supply. Mostly, two cylinders are built into the system; they work alternately - so the concrete is supplied smoothly and continuously. Also, a mechanism with two cylinders wears out less.

Rotor system operation

The use of rotary concrete pumps is much more common, since pistonless systems are more reliable. It is based on a rotor with fixed rollers (covered with rubber). As the rotor rotates, the rollers move, transferring the mixture from the concrete receiver to the working hose. An important advantage is the reverse function to remove air pockets and blockages.

Design of a rotary concrete pump

Equipment operation and repair are easier. The weak point of the structure is wear of the hose or seals - both faults can be easily eliminated with your own hands. Other disadvantages include low power (compared to the piston type) and poor tolerance of coarse filler.

There are also screw pumps for pumping concrete, but they are inferior in durability and performance. Their operating principle is elementary: a screw is placed in a through chamber, which displaces the substance during rotation.

Rotary mechanisms are presented in many modifications, the main difference being the method of placement: stationary and automotive.

Unit mounting options

Stationary pumps

Before making a concrete pump with your own hands, you should decide on the type of base it will be based on. The stationary option is a separate station for pumping the substance. Dimensions vary widely; there are concrete pumps for small-scale construction and the construction of industrial facilities. For movement, a chassis is often installed.

A mobile structure without a chassis predominantly has high power; it is recommended to use a concrete pump to supply large-scale construction, most often high-rise buildings, with the substance. If there is a chassis, transportation over long distances is not provided; they are intended for movement within one area.

Stationary mixer and concrete pipeline

Today, a new type has been developed - a towed device; it is distinguished by a powerful chassis that allows the installation to be moved over long distances by a tractor. For the construction of private housing or household structures, a mini concrete pump with a piston mechanism has been created, less commonly found with a pneumatic drive. It helps when working with small orders or in cramped conditions.

The pneumatic installation is designed to work with homogeneous cellular solutions, differs low power and the need to connect a compressor, but a stable supply of solution.

Pumps on a car base

The automotive type of pump is the most common in all areas of construction. Like other gardening equipment on wheels, the concrete pump can be easily moved independently, and also has characteristic differences:

a stationary station with high power is applicable exclusively for large-scale construction; it is expensive to maintain and unmaneuverable. The car version is able to drive up to most objects;
For stationary units, special power is required; in construction conditions it can be difficult to create suitable conditions. In a concrete pump truck, power comes from the machine installation;
a small pump has low performance, and the cost of installation is not affordable for all contractors. In terms of savings, renting a car unit is cheaper, and in addition it helps to complete the job many times faster;

Pumps on a car base

Modern auto complexes have a built-in retractable boom, which simplifies the delivery of the solution to target areas with difficult access or located at height. If a boom is not applicable, a line pump is used to help pump the solution up to 1 km and 120 m in height;
Thanks to a professional operator in the equipment cabin, the customer is relieved of all risks of device breakdown.

Concrete pump – buy or make it yourself?

There are many offers on the used special equipment market, but first you should think about the feasibility of the purchase, because there is an option to make a concrete pump yourself. Basic skills will be required to create the installation. Homemade installations less powerful and simpler in design, and when correct production they work properly and smoothly.

Initially, it is important to decide on the operating principle of the concrete pump: piston or hydraulics. The piston type is the simplest, but leads to rapid wear of the unit elements due to constant friction. Hydraulics are much better in performance, but are more difficult to manufacture. It is possible to make an automatic concrete pump, but they are less powerful.

Before starting to make a concrete pump with your own hands, important attention is paid to the gate - this is a kind of valve that ensures high-quality adhesion between the concrete pipe and the pump. The operation of the structure depends on the correct choice of gate.

DIY concrete pump

How to make a concrete pump - production technology

During the work process you will need auxiliary tools, the desired measure is thermal insulation. A do-it-yourself gerotor pump is made according to a single scheme. Key points for assembling a concrete pump:

Assessment of the feasibility of production. For large-scale construction, it makes sense to purchase your own installation. For small and medium volumes of work, it is profitable to rent a concrete pump. A homemade concrete pump is a relatively complex and expensive process.
Creating a drawing. The concrete pump diagram is simple; its design will require minimal design skills or use existing diagrams. Do-it-yourself production is a more difficult method, but it allows you to create a design for specific needs. The use of ready-made diagrams is convenient due to the reduction in time costs and the ability to study reviews about the shortcomings of the drawing or find ways to improve the design in them.
Selection of cylinder and piston. The key element of the system should be selected with a power reserve. The maximum cylinder diameter is 400 mm, it is better to choose smaller models. The piston stroke estimate is from 50 cm. If the parameters do not match, the number of working cycles increases, and as a result, rapid wear.
Adjustment of piston and cylinders. In order for the pump to serve for a long time, it is necessary to perform high-precision fitting and eliminate roughness.
Selection of node type. An electromechanical pump will help reduce the complexity and cost of manufacturing the device. The hydraulic option can be prepared manually, but this will increase costs and complicate the process.
Gearbox installation. The mechanism must include a gear ratio to reduce and convert rotational movements into translational ones.
Installation of the king pin. The element is connected to the mechanism. A metal corner is used to prepare the welded frame. The system incorporates alloy steel check valves and is wear-resistant.

After preparing the parts and assembling the pump, all that remains is to check the functionality of the installation. It is prohibited to start the device without concrete or a specialized starting mixture (manually made from cement with water and the addition of automobile oil).

Concrete pump drawing

Application of concrete pumps in construction

Monolithic high-rise buildings are almost always built using a concrete pump. The installations help deliver concrete to any floor with minimal time and physical costs.

With regard to private construction, the situation is somewhat more complicated, since access to the site for special equipment is limited, and manual preparation of the solution is an extremely lengthy procedure. Automotive units are quite large; in working condition, the equipment takes up up to 12 m in width; using a boom requires even more space, up to 70 m. Mini concrete pumps will help eliminate the problem, simplifying the task and speeding up construction.

You can order concrete with a concrete pump for small construction in combination with a KamAZ truck, on which the main line is fixed: 2 pipes with connecting clamps. An improvised concrete pump with a KamAZ truck is the largest version of a concrete pump.

If no truck arrives at the site, assembly must be done manually, but the participation of 2 and more people. Potential problems with manual installation:

line rupture. There is a lot of pressure in the system, the clamps are not always able to withstand the pressure. Pulling out the fastener creates a hole. You will have to stop the system, clean the pipeline and make a more durable fastening;
relocation of the highway. When changing jobs, it is necessary to move the pipe, but this cannot be done together with the solution. The lines will have to be disassembled, cleaned and reinstalled.

The long time required to set up the operation of the equipment is still significantly less than manually mixing the mixture.

Application of concrete pumps in construction

Advantages of automatic concrete pumps

Automatic production plants have numerous advantages:

There is a built-in electronic control unit that monitors the correctness and continuity of operation. The operator selects the operating mode, and the unit independently regulates the operation of the installation;
independent flushing system for pipes and pump. Reduces time spent on maintenance and clearing congestion;
lighting the surrounding area for working with the concrete pump after dark;
sound alerts about major events;
adjustment of gaps in the concrete distribution unit;
all pumping units are supplied with a flushing system, special software and a concrete pipeline of up to 80 m;
as an option, manufacturers offer a concrete distribution boom, which simplifies the delivery of concrete to the target location;
full compliance of engines with EURO-4 standards;
Reliable spare parts are used to increase durability and reduce maintenance costs.

The construction of even small structures requires the use of a variety of tools and techniques:

The most common area of use for a concrete pump is foundation formation. For the pile type it is convenient and cheap to use;
a monolithic structure always uses a metal base. will speed up the creation of the frame;

Concreting is often combined with the use of other building materials. If the amount of work is large enough, it will be useful or;
After erecting a structure, you always have to drill holes for electrical wiring, fixing equipment, etc. - it's simple and reliable way laying communications in the walls, the method is applicable for any other drilling work;
at the final stage of arranging the building, it will be useful; with its help, the holes will be even, and a box for an outlet can easily be placed in them.

Conclusion

A concrete pump is a complex construction equipment that is not easy to make on your own, but if you have the skills and time, the work is quite doable. Manufacturing options are more functional and efficient, but are expensive. If you want to save money, you often rent a concrete pump.

One of the most progressive methods of supplying concrete to the pouring site and uniform distribution is the use of concrete pumps. This method significantly improves productivity and quality concrete works, but due to the fact that the concrete pump is complex and expensive equipment, it is not always used. You will learn about the methods of application and types of equipment from our article.

Features of the use of concrete pumps

The participation of such equipment in construction work entails:

Using the labor of highly qualified concrete workers and mechanics.
High organization of work.
Strict adherence to all technological requirements.
The use of special concrete mixture compositions, taking into account:
- Concrete pipe diameter.
- Conditions and range of supply of the mixture in the structure.

Based on the above, it is advisable to use a pump for pumping concrete when supplying the mixture by other means is difficult or impossible, as in the case of:

Concreting structures located in cramped conditions.
Internal or densely reinforced structures.

Note!
Of course, no one has the right to prohibit the supply of solution in any conditions; it all depends on your budget.

Types of concrete pumps

For concreting structures, depending on the working conditions and purpose, various types of concrete pumping units are used:

Stationary is a piston installation located on a frame with wheels. As a rule, such equipment is installed for a long period of time and is used in the construction of high-rise buildings. If necessary, it is moved further to the desired location for pumping the mixture. The installation is powered by a diesel or gasoline engine.
Stationary pumping unit capable of:

Pour concrete to a height of more than four meters.
Feed speed up to ninety cubic meters per hour (depending on the technical characteristics of the unit).

The advantages of stationary installations include:

Small dimensions.
No big requirements for the installation site.
Low price (up to 3,000,000 rubles). Renting such a concrete pump will cost 250,000 rubles per month.

Trailed - a mobile unit that does not stand out in terms of power, but fits into almost any area and is easy to transport.

Mobile. Such installations are fixed to the frame truck.
The advantages of automobile concrete pumps include:
- High power (up to one hundred and fifty cubic meters per hour).
- Mobility.
- High productivity, ensuring reduced construction time.

The only drawback of this type of equipment is its price. Only the largest companies can afford to buy such a car. construction companies. A concrete pump based on a MAN truck costs more than 12,500,000 rubles.

The Korean version based on DAEWOO will cost a little less - up to 10,000,000 rubles. But anyway, as you can see, such equipment is not available to a private developer.

Advice!
A solution for organizations that cannot afford such equipment may be to rent it for a short time.
Renting a car pump, depending on the power and rental time or volume of concrete, costs from 2,500 rubles per hour, or from 200 rubles per cubic meter.

The most common mobile installations are on the go. They are equipped with movable booms of three or four links that fold in a horizontal or vertical plane.
It is advisable to perform it with a compensation device in the vertical section of the concrete pipeline. This makes it easier to regulate smooth changes in the length of the pipeline when lifting the formwork.

For your information!
The compensation device consists of a combination of straight inserts and elbows, which are combined by locking hinge joints.

In conditions of very low temperatures, only heated concrete mixture is used to a temperature not exceeding twenty-five degrees. This measure is necessary to avoid: firstly, premature thickening of the concrete mixture; secondly, loss of mobility, and thirdly, ease of pumping.

Important!
Concrete pipelines in such conditions must be insulated and pre-heated with steam before starting work, with the obligatory removal of the resulting condensate to the outside.

Types of concrete pump designs

Among concrete pumps, two main types of design can be distinguished:

Gerotor pump for concrete.
Piston pump.

Screw pumps

Gerotor (screw pumps for concrete) equipment is capable of ensuring an even supply of concrete of any hardness. They are characterized by low engine noise.

Possible concrete blockages in the concrete pipeline are eliminated by reverse operation of the engine.

The main disadvantage of such equipment is the rapid wear of the reinforced hose.
The advantage is the relatively inexpensive cost of repairs, since replacing spare parts does not require the involvement of highly qualified personnel.

Such equipment has:

Long service life.
High performance.

Piston pumps

A distinctive feature of modern piston equipment is:

Supply of concrete mixture to a height ranging from five to sixty-five meters.
Productivity under normal conditions is up to one hundred and eighty cubic meters per hour.

The disadvantage is that it is more susceptible to wear and tear, which will affect your budget or the budget of the construction organization.

There are craftsmen for whom it is not a problem to design and assemble a concrete pump with their own hands. But this is far from a five-minute task and requires special skills and abilities. Although if you have such a desire and strength, as well as detailed instructions, then everything is possible! And the incentive for your idea will be the final cost of a homemade concrete pump (within 60,000 rubles).

Transporting concrete

To prepare the concrete mixture on the way to the construction site, a concrete mixer truck with a pump is used. A concrete mixer with a pump is attached to the base of the vehicle, which supplies the ingredients of the concrete mixture directly into a continuously rotating drum during transportation to the building site.

To supply the concrete mixture from the mixer to the place where structures are concreted, the concrete mixer with a pump is equipped with a tray loading and loading device.

Such automatic mixers are capable of preparing and delivering a solution in a volume of five to nine cubic meters. As a rule, they are located on the basis of ZIL, Ural, KamAZ, MAZ, KrAZ and MZKT vehicles, which are designed for various loads and operate in any road conditions.

It is advisable to purchase concrete mixer trucks with a pump for companies specializing in:

On sale of concrete.
Providing concrete delivery services.

Only large construction organizations engaged in large-scale construction on an ongoing basis can afford to own such a concrete mixer. Only in this case will the equipment’s return on investment be high.

Even if you take into account depreciation charges for the maintenance of such equipment with its constant standard load, within a year you will recoup the funds spent on its purchase.

It is especially cost-effective to operate concrete mixer trucks with a pump for the construction of road surfaces, the construction of agricultural complexes and other development sites remote from the concrete supplier.

Conclusion

Now you know the price of the pump that in the future you will purchase for your vehicle fleet, which, you see, is very cost-effective in conditions of increased demand for the construction of country houses. The main thing is not to make a mistake when choosing an equipment manufacturer and to monitor the condition of the equipment.

In the videos presented in this article you will find additional information on this topic.

One of the most progressive methods of supplying concrete to the pouring site and uniform distribution is the use of concrete pumps. This method significantly increases the productivity and quality of concrete work, but due to the fact that a concrete pump is complex and expensive equipment, it is not always used. You will learn about the methods of application and types of equipment from our article.

Tell me where to pour the solution, and they will do it.

Features of the use of concrete pumps

The participation of such equipment in construction work entails:

Using the labor of highly qualified concrete workers and mechanics.
High organization of work.
Strict adherence to all technological requirements.
The use of special concrete mixture compositions, taking into account:
- Concrete pipe diameter.
- Conditions and range of supply of the mixture in the structure.

Based on the above, it is advisable to use a pump for pumping concrete when supplying the mixture by other means is difficult or impossible, as in the case of:

Concreting structures located in cramped conditions.
Internal or densely reinforced structures.

Note! Of course, no one has the right to prohibit the supply of solution in any conditions; it all depends on your budget.

Types of concrete pumps

For concreting structures, depending on the working conditions and purpose, various types of concrete pumping units are used:

Stationary is a piston installation located on a frame with wheels. As a rule, such equipment is installed for a long period of time and is used in the construction of high-rise buildings. If necessary, it is moved further to the desired location for pumping the mixture. The installation is powered by a diesel or gasoline engine. The stationary pumping unit is capable of:

As they say, set it and forget it until you need to transport the equipment

Pour concrete to a height of more than four meters.
Feed speed up to ninety cubic meters per hour (depending on the technical characteristics of the unit).

The advantages of stationary installations include:

Small dimensions.
No big requirements for the installation site.
Low price (up to 3,000,000 rubles). Renting such a concrete pump will cost 250,000 rubles per month.

Trailed - a mobile unit that does not stand out in terms of power, but fits into almost any area and is easy to transport.

One type of trailer pump

Mobile. Such installations are mounted on the frame of a truck. The advantages of automobile concrete pumps include:
- High power (up to one hundred and fifty cubic meters per hour).
- Mobility.
- High productivity, ensuring reduced construction time.

The only drawback of this type of equipment is its price. Only the largest construction companies can afford to purchase such a machine. A concrete pump based on a MAN truck costs more than 12,500,000 rubles.

The Korean version based on DAEWOO will cost a little less - up to 10,000,000 rubles. But anyway, as you can see, such equipment is not available to a private developer.

The photo shows a pump installed on a SCANIA car.

Advice! A solution for organizations that cannot afford such equipment may be to rent it for a short time.

Renting a car pump, depending on the power and rental time or volume of concrete, costs from 2,500 rubles per hour, or from 200 rubles per cubic meter.

The most common mobile installations are on the go. They are equipped with movable booms of three or four links that fold in a horizontal or vertical plane.
Concreting of structures in sliding formwork It is advisable to perform it with a compensation device in the vertical section of the concrete pipeline. This makes it easier to regulate smooth changes in the length of the pipeline when lifting the formwork.

For your information! The compensation device consists of a combination of straight inserts and elbows, which are combined by locking hinge joints.

In conditions of very low temperatures, only heated concrete mixture is used to a temperature not exceeding twenty-five degrees. This measure is necessary to avoid: firstly, premature thickening of the concrete mixture; secondly, loss of mobility, and thirdly, ease of pumping.

Important! Concrete pipelines in such conditions must be insulated and pre-heated with steam before starting work, with the obligatory removal of the resulting condensate to the outside.

As you can see, the mobility of the equipment is great, which allows it to be used in hard-to-reach places

Types of concrete pump designs

Among concrete pumps, two main types of design can be distinguished:

Gerotor pump for concrete.
Piston pump.

Screw pumps

Gerotor (screw pumps for concrete) equipment is capable of ensuring an even supply of concrete of any hardness. They are characterized by low engine noise.

Possible concrete blockages in the concrete pipeline are eliminated by reverse operation of the engine.

The main disadvantage of such equipment is the rapid wear of the reinforced hose.
The advantage is the relatively inexpensive cost of repairs, since replacing spare parts does not require the involvement of highly qualified personnel.

Such equipment has:

Long service life.
High performance.

Please note that this is not the third or even the fifth floor, and concrete is also delivered here via a special pump

Piston pumps

A distinctive feature of modern piston equipment is:

Supply of concrete mixture to a height ranging from five to sixty-five meters.
Productivity under normal conditions is up to one hundred and eighty cubic meters per hour.

The disadvantage is that it is more susceptible to wear and tear, which will affect your budget or the budget of the construction organization.

This diagram will help you understand the operation of the piston system of the equipment

Transporting concrete

To supply the concrete mixture from the mixer to the place where structures are concreted, the concrete mixer with a pump is equipped with a tray loading and loading device.

This technique can be used when it is necessary to pour the solution in places where a car will pass

It is advisable to purchase concrete mixer trucks with a pump for companies specializing in:

On sale of concrete.
Providing concrete delivery services.

Even if you take into account depreciation charges for the maintenance of such equipment with its constant standard load, within a year you will recoup the funds spent on its purchase.

Conclusion

Now you know the price of the pump that will fill you in the future concrete foundation or which you will purchase for your fleet, which, you see, is very cost-effective in conditions of increased demand for the construction of country houses. The main thing is not to make a mistake when choosing an equipment manufacturer and to monitor the condition of the equipment.

In the videos presented in this article you will find additional information on this topic.

Page 2

Anyone who has ever tried to make a hole in concrete on their own knows that it needs to be drilled, not drilled. You can, of course, try using impact drill with a drill for concrete, but this is only for very shallow and small-diameter holes. In our article we will talk about various attachments (concrete drill bits 20 mm, 30 mm, 50 mm and others), and how to handle them.

The variety of attachments is the first thing that can scare an inexperienced builder

Choosing the right drill

The very first thing I would like to start with is that to work with concrete you should use a hammer drill with drills - attachments of the required diameter, if, of course, you want to achieve the desired result.

But that’s not all, you can take a hammer drill of any power and still not achieve your goal. Only a well-chosen drill will be the key best result and accurate implementation of assigned tasks.

The difference between a drill and a drill

At first glance, an ignorant person will have difficulty distinguishing a concrete drill from a drill with a Pobedit tip, used on the basis of an impact drill.

Not at all, there are differences that are quite significant:

Drill shank complex shape according to the SDS standard, whereas the drill is smooth.
The grooves on the drill, twisted in the shape of a spiral, are sharp and cutting, and in the drill, these same parts are designed to remove dust and crumbs of concrete formed during the drilling process.

The photo shows exactly the drill that is used for the hammer drill

Unlike their counterparts, hammer drill bits are not sharpened, cooled or hardened. They are usually disposable and cannot be corrected or repaired. In this regard, they are usually sold in packs of ten pieces.

Attention! The operating instructions for three-mode hammer drills allow you to use them in combination with a drill in drill mode, using a special adapter (included in the kit). Drills can also be installed on a drill, but don’t expect efficient operation from this combination.

Moreover, the nozzle may jam in the chuck, and instead of drilling you will have to repair the drill.

This is what a drill bit looks like, which can be used to make shallow holes

Types of nozzles for rotary hammers

The best way to decide which concrete drills are best is to use the ones that are suitable for a particular case.

Replacement nozzles for rotary hammers for drilling concrete and reinforced concrete have several modifications:

For drilling small and medium-sized holes, resembling a drill in appearance. For example, the drill rod for holes with a diameter of up to 10 mm is made in the form of a screw with a tip and cutting edge made of carbide metal. The reliability of a tool that experiences large shock loads is increased by slightly rounding the shape of the drill tip.

A real builder has a set of different attachments

Special crown bits for making holes large diameter when installing:
- Switches.
- Rosettes.
- Branch boxes.

During operation, the destroyed base material remains inside the concrete drill bit.

Such attachments for drilling tools are in turn divided into:

Diamond (with the corresponding name sprayed on cutting edge) are used for non-impact drilling with simultaneous cooling with water.
Toothed bits for so-called “dry” drilling, in which the edge is equipped with teeth made of carbide. These attachments are designed for hammer drill operation in impact mode.

Crown for drilling holes for communications

Industrial drilling

Drilling in factory conditions or on large construction sites, provided that it is necessary to perform multiple drilling with precise markings in accordance with GOST, is performed automatically by special equipment.

The concrete drill machine, depending on the settings, is capable of drilling concrete in different directions:

Horizontal.
Vertical.

Machine drilling is performed with diamond-coated nozzles and serrated edges of various calibers:

For deep or through holes of small diameter.
Nozzles that simultaneously cope with deep drilling of large holes (50x1000 mm or more).

Drilling machines with different types of attachments are simply irreplaceable:

When performing a replacement engineering communications in old buildings in places where they pass through structures in previously unforeseen places (walls and ceilings).
When introducing utility networks into buildings through the foundation.
Construction of inputs and passages of underground routes through reinforced concrete and concrete wells.

For your information! Rotary hammers do an excellent job with other types of work.

Using a special attachment, you can quickly and effortlessly dismantle old tile cladding or excess concrete build-up.

It is much more convenient to hold the hammer drill with the help of a special additional handle

Nuances of the reinforced concrete drilling process

And yet let us give a few practical advice for beginners and not only:

When drilling, always use the speed setting recommended by the manufacturer.
The period of continuous operation of the tool should not be long. To avoid overheating, the reinforced concrete drill must be removed from the hole every 10 seconds and allowed to cool.
You need to combat the rapid heating of the nozzle by reducing its friction on the concrete. To do this, before starting work, when installing a drill for reinforced concrete on a hammer drill, drop a little technical oil onto the shank.
Try to maintain the drilling axis at all times. Even with a slight misalignment, the drill (especially a long one) can break.
Do not use commercially available adapters that claim to allow you to use attachments for powerful tools on analogs of a lower class. Manufacturers are thus trying to unify their products; not a single professional will do this.
If you have to work with your own hands on a concrete structure that has a reinforced reinforcement frame, immediately prepare diamond drill bits for concrete. They are precisely adapted to work in such conditions.

When working with a thin drill, be careful; any curvature can lead to deformation of the bit.

Important! The instructions for each individual tool provide clear recommendations for its operation.

Careful study of it will guarantee long-term service of the hammer drill and always consistently accurate execution of holes of the given parameters.

In the end, all that remains to be added is that, as a priority, purchase tools and attachments for them from manufacturers only with a good reputation, who have proven themselves in international market. The price of such equipment is slightly higher, but it will pay off with a long service life and quality of work.

Conclusion

We hope that the information described above was useful to you, if only because you were able to learn more about the various options for drill bits (for example, that there is an 8x600 mm concrete drill).

Remember that no matter what work you do, you should not neglect the safety of yourself and your loved ones. In the videos presented in this article you will find additional information on this topic.

masterabetona.ru

Pumps for concrete (concrete): gerotor, screw, for feeding

The scale of construction, which is gaining momentum every year, stimulates the development of technology. At construction sites, to facilitate and speed up work, a variety of equipment appears.

On large construction sites, the use of a concrete pump makes the job especially easier. The use of modern technology for the supply of concrete solution significantly increases the productivity and quality of work.

Features of using concrete pumps

A concrete pump is a difficult technique to use. Using the device has the following features:

work with the unit is permitted only to high-class specialists;
it is necessary to comply with technology and operating rules;
be responsible for organizing and preparing work;
use a special concrete solution, taking into account the diameter of the supply hose, the conditions for supplying the mixture to a specific location and the distance.

Truck concrete pump

Having considered the features of the use of such equipment, we can conclude that the concrete pump is mainly used in impossible or difficult conditions for supplying the mixture. For example, dense buildings, it is difficult to drive to a construction site, or you need to pump the solution to a large height - the concrete pump can easily cope with such difficulties. to menu

Types of pumps

During operation, the principle of displacement operates on the unit; a volume is created in the system, which can change. This principle divides pumping devices into two types: piston and gerotor. to menu

Concrete pump in operation (video)

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Piston devices

In piston machines, concrete is supplied continuously. Today, equipment can supply concrete mixture to a height of 6-65 m, the volume of solution supplied reaches 180 m³/h. Small particles of cement sometimes get caught between the surfaces of the pistons that rub, so the piston device has a short service life.

The concrete solution flows in spurts. There are devices with a hydraulic device that are durable and deliver concrete more smoothly. At the same time, the feed speed does not change, and the high pressure makes it possible to deliver over long distances. The operation of two-cylinder devices is so soft that it is almost unnoticeable. to menu

Gerotor pumps

These are auger devices with a continuous supply of concrete solution. The characteristics of gerotor technology allow you to work silently with a composition of any hardness. When a blockage forms in the hose, it is removed using a motor that can change the direction of rotation. The main disadvantage of the gerotor design is the rather rapid wear of the hose for supplying the mixture. But the advantage is the low cost of repairs, which can be done without the intervention of specialists.

Stationary concrete pump Tuna 40

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Mixer concrete

Delivering concrete mixture to a construction site is not an easy task. Incorrect actions may well ruin the quality of the solution. Using a concrete mixer truck prevents such nuances. A concrete mixer with a pump is attached to a car chassis. The inside of the iron barrel is equipped with blades. The clockwise movement of the barrel helps the mixture move inward, and when the reverse process is turned on, it pushes the concrete mixture along the blades to the discharge hole.

Advantages of using a mixer:

the homogeneity of the mass is maintained and stratification of the solution is prevented;
the solution is constantly in motion, even with delays, which helps maintain the technical characteristics of the material.

The capacity of the barrel allows you to move or prepare up to 9 m³ of concrete solution. The concrete mixer is equipped with a loading tray for pumping the finished mixture to the construction site. They use such transportation when you can easily drive up to the construction site. If there is no access to the building site, a pipeline is used, which is an in-building technique. The use of such a device has the following technological advantages:

horizontal and vertical movement using one equipment;
ease of work in hard-to-reach places.

Baryval 8m3 concrete mixer truck

Pipeline equipment – devices for supplying concrete mixture or a separate type of construction equipment. A separate technique involves installing a pump on a car using a rotating boom. Such devices allow transportation of the solution in a vertical or horizontal position for auxiliary structures.

The delivered mixture is moved through trays to the pump receiver, and through a pipe, which consists of three parts, the solution is supplied to heights and to hard-to-reach places. to menu

Stationary pump

Based on the principle of operation, the devices are divided into standard, trailed, mobile, or truck-mounted concrete pumps. The equipment can be equipped with a mechanical or hydraulic drive. The main parameters of construction units: feed height, productivity and distance.

A stationary concrete pump can be made in several versions and installed on a flatbed truck or a special platform, which is responsible for ease of movement. It is worth noting that the design is made in the form of a trailer with a chassis, and ensures a continuous supply of the mixture. It is very easy to transport such equipment by hooking it up to a truck.

The operating principle is based on the continuous pumping of a large amount of concrete mass. The design of the device has two modes: supplying the mixture under high pressure(at the same time, work productivity is significantly reduced), and the mode low pressure(with greater productivity).

Stationary concrete pump

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Pumping solution with a gerotor pump Pine

The mechanical engineering company StroyMechanika offers the buyer a gerotor (screw) unit CO 78.300/500/1000 Pine. The Pine gerotor pump pumps viscous and abrasive masses, materials that differ in density (foam concrete, polystyrene concrete), and cellular concrete solutions. The device is used for pressure supply of multicomponent and complex masses that are sensitive to mechanical stress. Also, the device supplies paste and liquid solutions with solid particles or fibers. to menu

Design

The mortar pump is equipped with a hopper for receiving material from the mixing plant. The presence of a supply hopper makes it possible to continuously supply material when using cyclic mixing technology. This is an important condition during work where interruption is unacceptable (filling out forms, mechanically applying plaster material, etc.). To facilitate transportation, the devices are equipped with a wheeled chassis.

The feed part of the screw technology consists of a gerotor steam and a feed auger. The single-thread screw (moving part of the steam) makes planetary motion in the stator, which has an internal double-thread surface with a pitch twice the pitch of the screw. With constant contact, the screw and the cage create several closed cavities.

Concrete pump drive diagram

As the screw moves, the cavity on the suction side increases, in which a vacuum is formed. Under the influence of such a vacuum, the cavity is filled with the pumped material. This design helps to move foam concrete, plaster and polystyrene concrete mixtures as carefully as possible.

Gerotor concrete pumps with small dimensions have high performance, allow you to pump working material into voids, pump mixtures for self-leveling floors, supply and apply plaster solutions. to menu

DIY concrete pump

Before assembling the main components of the device, you need to create a plan or make a drawing. This will help to assemble all the equipment into one unit. The main elements of the mechanism are the piston and cylinder.

All components and parts of the concrete pump are made using a lathe. When adjusting key parts, the accuracy of the error must be at least ±0.1 mm. The base for the body is made of sheet stainless steel, which will help avoid corrosion and chemical influences. The valve is adjusted using a screwdriver. The structure is assembled with a wrench of the required diameter. The drive part of the device is performed hydraulically or electromechanically.

The choice of method depends on the financial capabilities of the master. After all, a hydraulic drive has a more complex design and a high price level. Therefore, you should make your choice in favor of an electric drive unit.

Diagram of operation of a hydraulic concrete pump

Basically, a three-phase asynchronous electric motor is used, which is connected to the piston head rod. A mechanical converter and torque reduction gearbox are used to reduce the load. to menu

Unit installation

The electric motor is mounted on the axial base of the trailer. The gearbox is mounted on the motor shaft using a coupling. The converter is connected to the pump piston and the output shaft of the reduction gearbox. Then connect the motor to the power cable.

When assembling the concrete pump you will need following materials:

drawing supplies;
iron sheet up to 6 mm;
blanks for piston and valves;
metal pipe with a diameter of 400 mm;
three phase electric motor with starter;
a set of locksmith tools;
gearbox with reducing torque;
car trailer or welded base.

It is worth remembering that work with electrically conductive installations must be carried out by a qualified specialist.

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Do-it-yourself concrete pump: how to make it?

To make a concrete pump with your own hands, it is not enough to have money for the necessary parts - it requires patience, certain skills and ability.

The purpose of the concrete pump is to receive freshly prepared mixture from concrete mixer trucks and supply it to work area.

Of course, self-made construction equipment will look different from the factory model, but this factor will not affect its functioning in any way.

What types of concrete pump designs exist?

It is worth making a concrete pump yourself if large-scale construction is planned, otherwise it is more profitable to rent it.

As for the purchase of this type of construction equipment, it must be said right away that we are talking about expensive equipment.

At the moment, two types of concrete pumps can be used on construction sites: pistonless and piston.

The design of the first unit involves supplying the concrete mixture using rollers equipped with the rotor housing - during rotation, the rollers exert pressure on the supply hose, resulting in the release of concrete.

Assembling a rotary-displacement type structure with your own hands is more difficult than making a piston model yourself.

Reciprocating equipment drawings include three main parts, each necessary to perform a specific function:

piston - makes the cylinder work;
cylinder - responsible for taking concrete from the bunker and pumping it;
drive – electromechanical or hydraulic can be used.

In this article we will talk about assembling a single-piston pump with your own hands, which first began to be used in Germany at the beginning of the 20th century.

Double-piston concrete pumps have a complex design, and therefore are more expensive - there is no point in considering making them yourself.

It should be noted that the operation of 2-piston equipment can be carried out through the operation of diesel or electric motor, their use allows hydraulic energy to be converted into mechanical energy.

The piston system operates via a hydraulic drive cylinder in antiphase.

The cylinder of the unit is equipped with two check valves, which are activated by the piston.

The operating principle of construction equipment can be understood by considering the interaction of the cylinder and the piston system.

When the concrete pump is turned on, the piston begins to operate - first, the part forms a discharge inside the cylinder, as a result of which the construction mixture enters the hopper.

The piston reaches the designated point and returns to its original position, due to this, pressure is created, which contributes to the release of the mixture into the concrete pipeline, after which the concrete mixture is already supplied to the pouring point.

How to make a simple concrete pump?

As already mentioned, modern concrete pumps have two pistons, which increases the power of construction equipment and technical characteristics.

It is advisable to use such structures on large-scale construction sites, because only in this way will it be possible to recoup their cost.

It turns out that in small-sized individual construction, even their rental may turn out to be unprofitable.

In this case, it is worth considering the possibility of making a single-piston unit with your own hands.

As a rule, each project begins with planning, which allows us to obtain a high-quality final result.

Therefore, before starting to assemble a structure for supplying concrete, you need to draw up a plan with your own hands, which should include points about monetary costs, the purchase of the necessary material and parts, as well as an assembly diagram.

The diagram of the future pump is formed after the action plan is ready. In the process of drawing up drawings, it would not be a bad idea to ask for help from a specialist with an engineering education.

It was said above that the main parts of a concrete pump are the cylinder and the piston, therefore the correctness and duration of operation of the concrete pump depends on the quality of their manufacture.

When assembling the unit, two main points need to be taken into account:

the cylinder must have a diameter of at least 400 mm;
the piston must have a stroke of at least 500 mm.

The indicated values are due to the following factor. If the unit is equipped with a cylinder with a smaller diameter, and the piston system operates with a shorter stroke than specified, then this design is subject to rapid wear.

In this case, the machine performs more cycles to help pump a certain volume construction mixture than similar equipment with the above cylinder diameter and stroke size.

To increase the service life of the concrete pump and reduce the wear rate of its parts, it is recommended to use high-strength steel for the manufacture of check valves, which can withstand heavy loads.

Key points for assembling a concrete pump

In the process of manufacturing the working parts of a concrete pump with one piston, you will need a set wrenches, angle grinder, emery wheel and screwdriver.

It is worth keeping in mind that you may also need a lathe to make some elements, without which it will not be possible to assemble the structure.

Round small parts are turned on a lathe, which are then cleaned and taken to the desired parameters.

Sheet iron is used to make the concrete pump housing.

And, of course, the concrete pump cannot be put into operation without a drive, but when choosing a drive system, you need to take into account its features.

The drive for this type of construction equipment must be simple and economical.

To start the concrete pump you will need:

asynchronous electric motor with recharge from three phases;
gearbox – reducing the gear ratio;
reciprocating piston converter.

Important! In order for the piston to start moving, it must be combined with the converter using a pin.

Further assembly of the concrete pump is simple. First, a frame is made from metal profiles by welding, then the concrete pump elements are attached to it according to the diagram, and an electric motor with a switch is connected.

Using bolts, the gearbox is fixed to the electric motor shaft, the converter is assembled and mounted, after which all that remains is to connect the cable to the electric motor.

Once the concrete pump assembly is completed, it is recommended that it be tested to ensure that the unit is functioning correctly.

At the same time, it is strictly not recommended to carry out the test at idle speed. Therefore, before turning on the concrete pump, you need to fill its receiver with concrete mixture. For a test run, the concrete may have a very liquid consistency.

Experts advise adding a little to the first mixture motor oil, which at the same time will allow not only to check the performance of the unit, but also to prepare it for subsequent operation.

If the test was successful, then the concrete pump will only need to be disassembled and cleaned, which will need to be done after each use.

You can add a mobile function to the unit by placing it on a single-axle trailer, which will allow it to be moved around the construction site or sent to other construction sites.

stoydiz.ru

Making a concrete pump with your own hands

With the help of the latest advances in construction technology (mortar-concrete units (RCU), concrete mixing units (BSU) and others), it is possible not only to reduce the construction time of any objects, but also to improve the quality of work. For example, one of modern achievements With the advancement of technology, a concrete pump is an excellent assistant for builders.

Diagram of a trailed concrete pump: 1 – chassis, 2 – cylinder block, 3 – receiving hopper, 4 – concrete pump drive, 5 – casing.

You should know what a concrete pump is and what benefits it can provide, how it stands out among other construction equipment for mixing concrete. The purpose of such construction equipment, which is called a concrete pump, is to accurately and accurately supply concrete mixture or solution into forms or structures that have been prepared in advance, in various types of construction work. It is necessary to take into account the fact that when a certain mixture is supplied by a concrete pump, additional mixing of the concrete will occur, mortar mixture, which is supplied from a concrete mixer. This can improve the quality of the mixture that is served.

In addition to using this device for concrete for its intended purpose (injecting the mixture), it is possible to use it to control the quality of raw materials, for example, to check the delivered concrete according to given parameters quality project, which was purchased from a third-party factory. The pump will signal the operator with certain special signals about the shortcomings of the components and the discrepancy in the quality of the concrete mixture that will be obtained.

Existing types

Today on the market of construction equipment (concrete mixing equipment) there are concrete pumps, which are divided into 2 types: stationary and automobile.

Scheme of operation of a hydraulic concrete pump.

A permanently installed pump is a technique that has greater power compared to a car pump. It is most often used on large construction sites, at events that are held far from cities, or in harsh climatic conditions.

Provided for rent with o/p
mortar pumps (pneumatic blowers)
Strojstav PX 500 with compressors
for pumping cement mortar
for pouring (screeding) floors.

The MIKHTECH company provides for rent with service personnel:

- pneumatic mortar pumps
intended for the preparation and supply of various mixtures, concrete, expanded clay concrete, sand concrete, dry and semi-dry mixtures, etc.);

- piston mortar pumps
designed for creating and serving special plaster solutions from sand, lime, cement. Pouring mortars for installing screeds;

- auger (screw) pumps - plastering machines
supply liquid solution for plastering works.

Range and technical characteristics of mortar pumps and plastering stations

Model	Feed volume	Supply pressure	Feed range up/horizontally, m
Pneumatic mortar pumps
Mortar pump Putzmeister M 740 D - rent
Mortar pump Putzmeister Mixokret M 501 E - rent
		7
Pneumatic compressor PN-500 - rent
Piston pumps
Mortar pump Putzmeister P 13 EMR - rent
Mortar pump Putzmeister P 13 DMR - rent
Mortar pump Putzmeister P 715 - rent
Screw or screw mortar pumps (plastering machines)
Multi-purpose mixing mortar pump Putzmeister P 12 Sprayboy - rent
Plastering station Putzmeister MP 25 MIXIT - rent	25 l/min		15/40
Universal screw (screw) mortar pump Putzmeister SP 11 - rent	55 l/min

mortar pump PX-500

Pneumatic mortar pumps

Pneumatic operating principle of mortar pumps ensures pumping of hard solutions (expanded clay concrete, concrete, semi-dry cement-sand mixture screed, sand concrete, sand, etc.), which piston and screw mortar pumps cannot cope with.

The delivery range and height of the mortar pumps depends on the performance (modification) of the mortar pumps and the performance of the compressor.
The principle of operation is that the solution is placed in a sealed reservoir of a pneumatic blower and, under the action of compressed air, is supplied in portions and transported through a concrete pipeline.

Productivity up to 6 m 3 /hour.

Piston mortar pumps

Purpose:

plastering works;
shotcrete;
filling hard-to-reach places before spraying cement-sand mortars using a setting accelerator (silicate).

Capacity up to 115 l/min.

Screw mortar pumps

Purpose:

for working with dry mixture and ready-made solution;
for working with ready-made or on-site exterior plasters, high-quality decorative plaster mortars, lime-cement plaster mortars, light masonry mortars, screed mortars;
for finishing finishing solutions, putty, sealing masses, adhesives, liquid plaster solutions.

Capacity up to 55 l/min.

Mortar pump (pneumatic blower): prepare and supply the solution using one piece of equipment

In an effort to reduce the labor intensity of construction work and minimize the construction time of buildings, designers are creating new types of equipment and technology. An example of a successful combination of two different functions in one equipment can be considered mortar pump(or pneumatic supercharger).

As the name suggests, compressed air is used to move the solution. The mixture is prepared in a closed tank using rotating blades, which simultaneously push it towards the outlet. Additional pressure is created by the flow of lower air, which ensures uniform supply of the solution through the hoses. This design minimizes the risk of hose clogging and premature failure of all equipment.

Using a pneumatic mortar pump you can:

quickly prepare a solution from dry ingredients directly on the construction site
take the almost finished solution from the mixer and refine it
ensure direct supply of the solution to the place of its installation

Mortar pumps with the same productivity in less than a minute they are able to prepare coarse and fine-grained concrete, masonry, plaster mortars and even polystyrene concrete. Pneumatic compressors have proven themselves well in the construction of semi-dry screeds.

The main advantages of mortar pumps:

the solution is prepared immediately before laying, so its heterogeneity or partial setting during delivery to the construction site is excluded
the composition of the mixture for the prepared solution can be any, including the inclusion of lime or waterproofing additives
mortar pump Can also be used to prepare foam concrete
solutions with regular and low percentages are pumped equally well percentage water
equipment operation does not require large energy consumption
mortar pumps The Strojstav brand offered by our company is reliable in operation and, if necessary, suitable for repair
for supplying solution from pneumatic supercharger Concrete pipes of various diameters can be used at the work site
long service life due to the absence of wearing parts
relatively light weight and dimensions pneumatic superchargers, as well as the presence of a pneumatic chassis, allow them to be used on small sites and easily moved
lower than that of concrete pumps similar in power and conditions of use for certain types of work, price

Plastering stations: convenient, profitable, fast

The second representative of such equipment, combining several functions, is plastering stations. They are used to prepare a solution, pump it to the work site and apply it directly to the surface.

The main benefits of using plastering stations:

fast mechanized plastering of large surfaces, reducing work time by 3 times. Equipment productivity is on average 200-500 sq. meters of processing per shift
minimizing manual labor during finishing work on site, allowing workers to be freed up to perform other types of work
maintaining uniform thickness of the layer of applied plaster

What STROJSTAV plastering stations can do

prepare solutions for plastering work with any composition, including additives that ensure the decorative effect of the plastered surface
Some models of plastering stations can work without connecting to a water supply. A special valve allows them to take the amount of water required for the mixture from any container
move the prepared solution over distances of up to 40 meters and raise it to a height of up to 20 meters
apply the prepared solution to vertical and horizontal surfaces indoors and when performing exterior finishing buildings
It is easy to cope with the installation of self-leveling floors.

At MIKHTECH you can not only buy one of the offered models of mortar pump or plastering station, but also rent this equipment for the required period. The personnel servicing this equipment have been well trained to guarantee uninterrupted operation at the site and the most high quality works

Compare the prices for renting and purchasing equipment in this table and choose the option that suits you. Our specialists will advise you on the required performance of the mortar pump (pneumatic blower) or plastering station for the scope of work. We will try to coordinate the delivery time of equipment to the site in the most convenient way for both parties.

With the increasing scale of construction of residential and industrial facilities, the need for new technologies and equipment arises. One of them is a screw pump for supplying cement mortar. Its use on large construction sites increases labor productivity and improves the quality of work performed.

When constructing huge objects, large volumes of liquids are involved cement mortars. It is necessary to quickly deliver concrete to the construction site; delays in work have a bad effect on its quality. To do this, use structures in the form iron barrel, attached to the car. The composition in such a device is homogeneous, without separation. Inside, the mixture is constantly in motion, which ensures the preservation of its technical characteristics.

Delivery to the site occurs using a special loading tray. But for this it is necessary to provide access to the construction site, which is not always feasible. In this case, a screw pump comes to the rescue. Its advantages include the possibility of vertical and horizontal transportation of the solution and easy access to hard-to-reach places.

The concrete pump is mounted on a truck chassis and equipped with a full-rotating boom. Using this technique, it is easy to concrete floors during the construction of multi-story high-rise buildings.

Advantages of concrete pumps

The application has some peculiarities. The main ones:

Attracting highly qualified concrete workers to work.
The need to adhere to certain technological requirements.
High-quality organization of the production process.

For proper operation, a specially prepared mixture is required, taking into account the diameter of the hose and the delivery range.

The use of this equipment is advisable in cases where the supply of solution to the object is difficult or even impossible. For example, when located in cramped conditions or for working with densely reinforced systems. Pumps are suitable for hard-to-reach structures various types. For transportation liquid concrete stationary, trailed and mobile types are used.

The mobile auger device is mounted on a truck chassis. Its advantages over other types are greater power, which allows you to supply up to 150 cubic meters of ready-made concrete per hour to the site. This installation is more maneuverable and mobile. It has good performance, which reduces the construction time of objects. The disadvantage is the price; it can only be purchased by large construction companies. For private developers, the solution may be rent, calculated based on 1 hour of work or delivery of 1 cubic meter.

The concrete pump is capable of silently and continuously delivering a solution of any hardness. The formation of congestion in the hose is eliminated by changing the direction of rotation of the mixer. The main disadvantage is the wear of the pipeline for supplying the mixture. This can be caused by improper use. As the concrete hardens, a blockage forms. In this case, the device should be turned off and the jammed area should be cleared.

The supply system must be flushed with water. To do this, install a water pump.
Before starting work, check the hydraulic pressure.
When laying the pipeline route, a large number of bends should be avoided. Its parts are located at an angle. Placement at right angles should not be allowed.
To begin work, the concrete pipeline is moistened with lime mortar, which forms a kind of lubricant on the walls.

It is unacceptable to take long breaks from work. Even during periods of inactivity, a small amount must be pumped through the pipeline.

Review of popular pump brands

Compact feeder liquid mixtures. In construction they are used when transporting concrete mortar, putties, and plasters. Powered by electrical supply and is easy to maintain. It has adjustment of engine performance and speed and a reverse mode, which allows you to work with compositions containing solid particles.

Due to its compact dimensions (1x0.5x0.5 m) and low weight (11 kg), it can be used in difficult and cramped conditions. The hopper has a capacity of 25 l, the kit includes a 5 m hose, connecting nozzles and tubes, and a pressure gauge. You can purchase it in most existing online stores of industrial equipment.

2. Screw G10-G85.

For pumping solutions containing solid particles. The installation provides constant operating pressure without pulsation, which serves as protection for the mixture. Capable of processing from 0.2 to 20 cubic meters per hour.

The horizontal pump is designed to supply fine-grained cement compositions to the site. KSG-705 is a compact multifunctional electrical device with adjustable speed. Used in construction for pumping water and concrete mixtures, liquid plaster solutions, putties, varnishes and paints.

Used to strengthen and reinforce foundations, stone and brickwork, for applying plaster and putties, and filling voids in structures. The advantages include versatility, mobility, simplicity and ease of use. Weight – 15 kg, the kit includes a 5-meter hose with a GEKA connection, a pressure gauge and nozzles. Hopper capacity – 10 l, maximum length feed – 10 m.

The screw device is used for pumping viscous cement mortars, putties, and adhesive mixtures. This type is used to supply concrete to a significant height when filling cracks in brickwork and applying plaster to the walls.

The advantages are:

removable 30-liter hopper;
light weight and compact dimensions;
size of solid pumped particles up to 3 mm;
equipped with a high pressure screw pump;
adjustable feed;
power supply from household electrical network.

The cost is higher than other analogues due to the materials from which it is made. Steel is used in production, which makes it more reliable in operation and allows major renovation. The stator is made of polyurethane - a material that is considered the most wear-resistant. The rotor is made of stainless steel. For ease of movement around the construction site, the unit has conveniently arranged supports and wheels.