Main characteristics of the concrete pump is its power, on which the length of the boom and the feed range depend. The latter parameter is singled out separately, since the ABN is sometimes connected to a stationary highway, designed for delivery to those areas where it cannot drive up on its own. For modern construction, machines are used whose boom can reach 64 meters - this is quite enough to build a multi-storey residential building. For the construction of monolithic structures, the height of which exceeds the indicated figure, stationary systems are used, combined with pipelines. The characteristics are quite diverse and it is necessary to say a few words about how their selection should be made. First of all, there is a cost factor, which is the main limitation in the process of searching for an optimal model. The characteristics of the concrete pump should be selected in such a way that, given the parameters sufficient for operation in specific conditions, the possibilities of ensuring the entry of the rental or purchase price into the established range are fulfilled. It should be understood that when a product has insufficient parameters, then the efficiency of its functioning in the given conditions of construction work decreases many times. If this is not taken into account, then a significant number of problems will arise, which will have to be dealt with already on the spot.
Choosing ABN, the main focus is on its performance:
To use concrete pumps, several conditions must be observed, which are necessary to ensure the smooth operation of the unit itself and the safety of builders on the site. The slope should not exceed 3%, otherwise, operation may lead to an accident. For the same reason, it is not recommended to deploy ABN near the fortified edge of the pit - the minimum distance is 5 meters. The limitation on the ambient temperature is minus 15 degrees, in addition, there should be no power lines near the object.
Nowadays, automation of the construction process is increasingly being introduced into the construction industry, which makes it possible to reduce the cost of an object being erected, increase the speed of construction and facilitate the work of builders.
One of the construction automation processes is using concrete pumps, photo 1.
Photo 1. Concrete pumps on a truck chassis
A concrete pump is a set of equipment that is installed on a truck chassis and consists of the following main parts:
- built-in folding concrete pipeline in the form of an arrow (arrow-concrete pipeline). The length of the concrete pipeline in working position can be 22 ... 64 m, photo 2;
- rubberized hose ("trunk", usually about 4 m long);
- mixer;
- loading hopper;
- concrete-water elbow (there are 3 ... 7 pieces);
- hydraulic cylinder (usually 2 pcs);
- water pump;
- concrete lock with rubber seal;
- flushing device.
Photo 2. Concrete pump-boom concrete pump in working position
There are concrete pumps with the following boom reach: 22 m; 32 m; 36 m; 42 m; 46 m; 52 m; 53 m; 57 m.
Depending on the type of supply, concrete pumps are divided into:
- vacuum (concrete is supplied by creating a vacuum in the system);
- piston (concrete is fed due to the movement of pistons);
- curtain (curtains);
- gate (the presence of gate).
According to the shape of the concrete pipeline there are:
- S-shaped concrete pumps;
- C-shaped concrete pumps.
Concrete pumps are of different types, depending on the size and method of movement:
- stationary (has wheels for movement and is made in the form of a trailer);
- automobile (based on a truck);
- mini concrete pump (used with a small volume of concrete or a small flow), photo 3.
A photo. 3. Types of concrete pumps: a) stationary; b) mini concrete pumps
On photo 4 concrete pump trucks of high performance and long boom length are shown.
Photo 4. Concrete pumps with maximum power and long reach. Installation of concrete pumps manufactured by Putzmeister M70-5 (Germany) and CIFA K80H Carbotech on Kenworth C 500B, Mercedes, Man cars
A car concrete pump has a number of advantages, such as mobility and the possibility of more convenient maintenance of the entire machine as a whole. But, for example, stationary at the cost of rent and operation is cheaper.
Conditions under which the concrete pump is used
- The main purpose of a concrete pump is to pump concrete from concrete mixers () to the object of concreting, which is located in a place that is difficult to access.
- When using an appropriate concrete mix. For normal operation of the concrete pump, a concrete mixture with a maximum crushed stone size not exceeding 1/3 of the cross section of the concrete pipeline should be used. Usually, for concreting most of the construction projects using a concrete pump, a concrete mixture with a crushed stone particle size of 20 ... 60 mm is used, while the inner diameter of the concrete pipeline should be 60 ... 120 mm.
- If necessary, concreting building elements and structures at a considerable height, more than 5 m.
- Concrete the entire structure at the same time, if necessary.
- With a large amount of concreting, when it is necessary to concrete with high productivity and for a long time, with the possibility of round-the-clock operation of the concrete pump.
- Characteristics of the concrete mix for which the concrete pump can be used:
- the mobility of the concrete mixture P4, P5 (cone draft 16 ... 21 cm);
- W / C (water-cement ratio) no more than 0.75;
- strength grade of at least B12.5 (M150), for some pumps - at least B22.5 (M300).
The principle of operation of the concrete pump
The principle of operation of a concrete pump is that concrete mix is \u200b\u200bfed continuously from concrete mixers at a certain speed into the bunker of the concrete pump. From the hopper with the help of pumps, the concrete mixture enters the concrete pipeline, from where it goes to the direct concreting site.
Before operating the concrete pump, to create a lubricating thin layer that ensures easy pumping of concrete, you should pump a small amount of such mixtures to choose from:
- mortar;
- cement-sand mortar in a ratio of 1: 2 (C: P).
It is not permissible to make long breaks in concrete supply, more than 15 ... 20 minutes. In case of emergency or forced stop of the concrete pump for more than 1 hour, if possible, it is necessary to pump concrete at low speed every 10 minutes in a minimum amount so that it does not grab inside the concrete pipeline.
In winter, the condition for the operation of a concrete pump is pumping a concrete mixture with a temperature not lower than 25 ... 30 ° C, i.e. it must be preheated. During winter concreting, concrete pipes are additionally insulated.
Route application
In especially difficult conditions, where the access to the object is located very far or high, additional equipment is used - tracks (a set of concrete pipes). The route consists of a certain number of metal pipelines, which are laid to the object along the shortest path with a minimum number of bends.
Concrete pipes cannot be installed at right angles or strictly vertically, in extreme cases, with a short length of the concrete pipe, it is allowed to be located at a right angle, if this bend is located at least 8 m from the concrete pump itself and an additional installation of a needle valve is provided.
When choosing to rent a concrete pump, you should pay attention to its characteristics:
- type of concrete pump;
- power and performance of the concrete pump;
- concrete mix delivery parameters (maximum length and height);
- concrete pump manufacturer.
Benefits of using concrete pumps
- Possible direct access to the construction site in difficult conditions when there is no possibility of a truck mixer drive directly to the construction site.
- Labor costs are reduced.
- Concrete losses during transportation to formwork are reduced.
- Construction speed increases.
- High durability of the concrete pump equipment when used correctly.
- Concrete pump equipment is easy to operate.
- Possibility of conveying concrete in horizontal and vertical directions:
- horizontally - up to 300 m;
- vertically (in height) - up to 80 m.
- The mobility of the installation allows you to use the equipment to the maximum in terms of time and speed of movement.
- High performance (up to 90 m³ / h).
- It is convenient to use in the monolithic construction of multi-storey and massive buildings and structures.
- Concrete pumps can be powered by an electric or diesel engine.
It is believed that the concrete pumps of the following manufacturers are of higher quality and reliability:
- Putzmeister (Germany);
- Cifa (Italy);
- Sany (China).
Konev Alexander Anatolievich
Malyavin Anatoly Nikolaevich
Most large construction companies use concrete pumps. With their help, the mixture is transported for the manufacture of foundations, various monolithic structures in the shortest possible time. This article will provide and review devices installed on a car chassis, for example, a used concrete pump.
In the photo - supplying the solution directly to the construction site
How it works
The main purpose of such equipment is the supply for pouring the ready-made concrete solution in the horizontal or vertical direction with the inclination of the supply cone within 60-120 mm. The concrete pump is installed on a car chassis, the drive is hydraulic.
The boom placed here also consists of several hinged-connected sections and a concrete pipeline, through which concrete mortar passes, mixed in certain proportions. Usually it is not made by hand, but is centrally transported from the factory to a place specified by the construction plan or is made on site using a mini concrete plant.
Note! You cannot use equipment to make mortar, the installation only pumps it from one point to another, making the construction process easier and faster.
Concrete pump truck with extended boom
Components
The design of the concrete pump has several elements with which it works and transports the ready-mix.
The main components are:
- concrete transport cylinders;
- hydraulic cylinders;
- piston group;
- receiving funnel;
- concrete pipeline.
With the help of hydraulic cylinders, the pistons of the concrete transport cylinders are set in motion at a certain interval. The instruction is simple, during this process, the finished solution is captured, which at that moment is in the receiving funnel, and it is transported to the concrete pipeline, in accordance with the working cycle.
Concrete pump truck with folded boom
Properties
Below we consider the technical characteristics of the concrete pump:
- With the help of a hydraulic drive, the solution moves freely along the concrete pipeline, in addition, the drive serves for several more tasks - the productivity and working pressure are regulated, due to which all units and mechanisms operate in a rather gentle mode.
- Concrete pumps, which have a hydraulic drive and a two-piston engine, provide a solution feed rate from 5 m3 / h to 65 m3 / h.
- The maximum distance for feeding various grades of concrete is no more than 400 m in the horizontal direction and no more than 80 m in the vertical direction.
To calculate the productivity, the following formula is used - P t \u003d I A kH n 3600, where:
- I - working stroke of the piston (m);
- A - section of the piston (m);
- kN - coefficient of filling the concrete cylinder with a solution (0.8 - 0.9);
- n is the number of paired piston strokes.
Visual representation of the process of pouring the foundation with the mobile installation
One of the main features of the model under consideration, in addition to mobility, is its performance, which is determined by the parameters of the concrete pipeline and boom. It should be said that the cost of construction will greatly increase, in this case it is compensated by the speed and economy of labor resources.
The spreading boom on standard equipment consists of three sections that are connected by articulated joints. It is located on a swivel mechanism mounted on the chassis and resting on it with a frame. It can be rotated 360 ° and its working length can be no more than 19 m.
The equipment operates in a temperature range from -5˚C to + 40˚C, with a supply voltage of 380 V. There are modifications that allow it to function in an autonomous mode, then the equipment is provided with an engine running on diesel fuel. Its power is measured in kW and depends on the model.
Kinds
An automobile concrete pump is a special equipment designed for pumping concrete. Unlike a stationary concrete pump, it is installed on a mobile chassis, so it is possible to deliver the ready-made solution directly to the work site.
With such transportation, the power of the pump decreases, but makes it possible to use it more efficiently. All types of automatic pumps are unable to transport large volumes of solution.
Advice: do not sharpen yourself with such a problem, since many construction projects do not require high equipment power.
Production work at subzero temperatures
At the current time, the types of concrete pumps are divided into groups according to the amount of concrete pumped per hour:
up to 60 m3 / h Typical installations subject to optimal and correct use. up to 200 m3 / h Some types of concrete pumps have higher performance. It should be said that these data were obtained when working with an ideal mortar and without boom.In the construction industry, there are other classifications according to which varieties of automobile concrete pumps are distributed.
For example, in size or, if possible, the extension of the boom:
- If we analyze modern plant models, the last parameter fluctuates in the range of 22-64 m.
- For complex objects, to which it is not possible to fit a car, units with higher rates are used.
Also, one of the important factors is the height to which it is possible to extend the boom.
The principle of operation of piston cylinders
Advice: when calculating, it should be borne in mind that the higher the height, the more powerful the pump motor must be.
This depends on the fact that gravity interferes with proper stacking at a higher level of the structure, therefore, for high-quality construction of tall buildings, powerful equipment motors must be used.
Output
From the article it became clear that the concrete pump has a big plus - mobility. Although this also reduces its power, this drawback is not always in demand at the construction site. There are several types of such equipment, which differ in overall dimensions, the amount of mortar supply and the boom reach (see also the article "Concrete quality control is the key to safe construction").
The video in this article will help you find additional information on this topic.
To ensure the transportation of ready-mixed concrete over a long distance or to hard-to-reach places, a concrete pump is used. We will talk about the features of the choice and operation of a concrete pump further.
The principle of operation and the device of the concrete pump
The main function of a concrete pump is to pump concrete during the construction of residential and industrial facilities.
The concrete pump is characterized by the presence of:
- output part,
- agitators,
- loading hopper,
- oil tank,
- cooling system,
- main engine,
- water pump,
- tool box,
- nitrogen cylinder,
- pumping valve,
- electrical panel,
- casing,
- hydraulic system,
- oil filter,
- pressure gauge,
- lubrication systems,
- supports,
- wheels,
- chassis,
- shilnik,
- hitch,
- support chassis.
The main parts of the concrete removal device are:
- concrete water pipe,
- concrete-water knee,
- concrete lock with rubber seal,
- flushing device.
The main part of a concrete pump is a motor powered by electricity or diesel fuel. The concrete pumping system works in an open circuit, which is easily adjustable. Additional features such as infinitely variable hydraulic adjustment and variable fuel delivery help the device to perform better.
The main components of the concrete pump are two hydraulic cylinders and a water pump. Due to the presence of pistons connected to hydraulic cylinders, a reciprocating movement occurs, during which the first piston moves in one direction, and the second in the other.
A loading sector is connected to the outlets, into which the concrete mix falls. With the help of the work of two cylinders, moving versatile, the concrete mixture is pumped. Transport cylinders are connected to hydraulic cylinders, so the concrete mix is \u200b\u200bvery quickly sucked in and pumped.
In an oil-type concrete pump, the adjustment of the concrete feed rate depends on the amount of oil entering the hydraulic cylinder. Distributors in such a device are pipes installed in a rotary direction. To ensure uninterrupted pumping of the mixture, you need to use pipes three times the size of the concrete.
For the construction of industrial or residential purposes, concrete is used, which has a particle size of two to four centimeters, in which case the diameter of the pipes will be from 6 to 12 cm.
The concrete mixture that enters the concrete pump undergoes a special study in laboratory conditions, where such a composition is selected so that the concrete is conveniently and easily pumped. It is recommended to use cement or other plasticizer-based additives.
Scope of use and advantages of the concrete pump
The concrete pump is used to deliver concrete to hard-to-reach places. During the construction of multi-storey buildings or large industrial plants, it is much easier and faster to move concrete with a concrete pump.
Scope of use of the concrete pump:
1. In the construction of bridges, overpasses, this device helps to quickly deliver the concrete mix, preventing it from thickening.
2. In the process of building railway or water structures, this device is also used.
3. During the construction of tunnel or port connections, the concrete pump is an indispensable means of transferring the concrete mixture to the facility.
4. In any construction where a lot of concrete is used, a concrete pump is required, since this unit does not require spending time and physical resources on transporting concrete.
Benefits of using a concrete pump:
1. The concrete pump helps to quickly and efficiently erect buildings and save time and money.
2. Smooth conveying of concrete mix does not allow its leakage during transportation.
3. The concrete pump is a fairly wear-resistant equipment, besides, it is easy to operate.
4. Concrete pumps are capable of conveying mix both vertically and horizontally.
5. Some models are characterized by the presence of a remote control, with the help of which it is possible to supply concrete over a long distance exceeding 25 meters.
6. The presence of wheels allows you to quickly move the device and does not require a large number of people to transport it. One person is enough to operate the concrete pump.
7. Concrete pumps are distinguished by a high level of productivity, and perform a given job several tens of times faster than a person.
8. The maximum length of the concrete mix is \u200b\u200b300 meters and the height is 80 meters. During the construction of multi-storey buildings, this is a necessary unit.
Varieties of concrete pumps
Depending on the type of movement, there are:
- stationary concrete pump,
- automobile concrete pump,
- mobile concrete pump,
- mini concrete pump.
A stationary concrete pump looks like a trailer with a pump installed on it. It is transported using a tractor.
Benefits:
- pumping large quantities of concrete,
- availability of both vertical and horizontal feed,
- lower cost,
- availability of a highway.
Scope of use:
- construction of tall buildings,
- multi-storey buildings.
Disadvantages:
- lack of fast transportation of the pump,
- poor performance of maneuvers,
- mandatory presence of a manipulator.
A truck-mounted concrete pump is used when conveying concrete to hard-to-reach construction sites. It looks like a car on which a pumping station with concrete pipes is installed. The main components of this device are a concrete bunker and an arrow. The boom looks like a tube with several movable legs. The boom length of the truck-mounted concrete pump is 20 to 60 meters. This is the main criterion for the cost of this device. A container for immersion of concrete acts as a bunker. From the hopper, by pumping liquid, the concrete enters the pipe system. The end of the boom has a flexible sleeve that controls the concrete hitting a specific location. To start a concrete pump of this type, first, cement milk or a chemical solution is poured into it. To work on this device, two people are required, one is responsible for the control and coordination of the boom, and the second is engaged in direct construction work.
Benefits:
- high level of productivity, more than 90 m³ per hour;
- does not require special transport to move;
- easy maneuverability.
Disadvantages:
- high price,
- lower length and height of concrete delivery.
Mobile concrete pumps require additional technical equipment to move them. They are mounted on a chassis and thus move around the construction site.
Mini concrete pumps are used during construction to supply small amounts of concrete. This unit is used both in large-scale construction and during the construction of medium or small objects.
Due to its compactness, the mini concrete pump can easily move around the construction site and deliver concrete solution to the most inaccessible places.
Features:
- feed length up to 150 m, and height up to 50 m;
- devices operating both from the network and on diesel fuel;
- autonomy of movement.
In relation to the type of concrete supply, devices are distinguished:
- vacuum type,
- piston type,
- curtain type,
- gate type,
- S-shaped,
- C-shaped.
A vacuum-type concrete pump provides fuel supply by accumulating vacuum in the receiving part. The piston system involves pushing concrete with multiple pistons.
Curtain-type devices have a feed mechanism that is separated from the entire device by curtains. In vane concrete pumps there is a vane assembly that separates the device from the feed mechanism.
1. To buy a concrete pump, contact a specialized store, where experienced consultants will help you choose a device based on the construction features.
2. In the process of choosing a concrete pump, the first step is to determine its functional load. You should know for sure: how much concrete needs to be pumped and on which objects, in size, it will be used.
3. If you need to use the concrete pump only once or twice, compare the rental price and purchase price, and decide for yourself which option to choose.
4. Pay attention to the power and performance characteristics of the device.
5. Parameters of length and height of delivery are also selected individually.
6. Between a stationary and a car concrete pump, it is better to give preference to the second type, although it is more expensive, but over time these costs will pay off, since for a stationary device it is necessary to hire equipment for its transportation.
7. The price for a concrete pump is determined by the following factors:
- type of concrete pump,
- device power,
- performance,
- feed height and length,
- company manufacturer.
Concrete pumps characteristics and manufacturers overview
1. Concrete pump Putzmeister (Germany) - characterized by the following features:
- fast and efficient transportation,
- high feed rate,
- good performance,
- allow you to quickly build bridges, high-rise buildings, tunnel structures,
- a large number of innovative technologies produce remote-controlled devices that work quickly and efficiently,
- able to work in the most severe weather conditions,
- easy to clean and unpretentious in operation.
2. Cifa concrete pump (Italy) - differ in the following characteristics:
- about ten models that meet all modern construction technologies;
- complete set using high-performance units;
- Z-shaped boom design allows easy and high quality delivery of concrete over a long distance;
- concrete pumps easily penetrate into the most inaccessible places;
- the design allows you to significantly save fuel during operation;
- accelerating the pace of construction several times;
- the bunker helps to improve the quality of the concrete mix;
- high pressure allows the delivery of concrete faster;
- compactness of the installation does not take up much space on the construction site;
- choice of electric or diesel engine.
3. Sany concrete pump made in China has the following features:
- the presence of a liquid crystal indicator and a text display,
- ease of management,
- the presence of two modes of operation: high-speed and low-speed,
- patented technology for manufacturing a concrete bunker,
- there is practically no accumulation of solution in the corners of the hopper,
- the presence of a remote control,
- low noise performance,
- reducing the amount of exhaust gases in devices powered by a diesel engine,
- the engine is able to start easily even at low temperatures,
- low fuel consumption,
- ease of use,
- durability of work,
- the ability to adjust the concrete feed rate allows the use of the concrete pump on various construction sites,
- the presence of a hydraulic circuit makes it easy to transport the device.
1. Before starting to use the concrete pump, it is recommended to test the device of the concrete pump itself and the complete set of the concrete pipeline for a test hydraulic pressure, which will help to determine the performance and adjust the device. The recommended pressure value is indicated in the technical data of the device.
2. Use a water pump to flush the concrete water system. The receiving hopper controls the size of the initial particles of the mixture entering the concrete delivery device and thus prevents clogging.
2. To correctly select the composition of the mixture, you should test the device for pumping different compositions of density. Due to the presence of a special tank for concrete, it is continuously pumped. Installation of a centrifugal water pump is required to pump out excess water after washing the concrete pump.
3. The route of the concrete pump is installed in such a way that the shortest distance and the smallest number of bends are obtained. The horizontal part of the concrete pump is mounted on supports or pads, and the vertical ones are located on masts, farms or formwork. It is impossible to install concrete pipes at right angles, and in case of the appearance of vertical sections, they should be replaced with inclined ones.
4. If the appearance of a vertical section could not be avoided, then its location should not be closer than eight meters to the concrete pump, in addition, additional installation of a needle valve is required, which will prevent the occurrence of a reverse flow of concrete during stopping, changing or cleaning the device.
5. Before starting the delivery of the concrete solution through the concrete pipeline, first pass the lime mortar or a mixture of cement and sand, diluted one to two, in order to wet the inner part of the concrete pipeline and form a lubricating layer on it.
6. Several trays or vibrating chutes are used to distribute the concrete mix. If there is a low density aggregate in the concrete mix, booms should be used as distributors.
7. It is forbidden to make long breaks during concrete delivery. If there is a break of up to one hour, then the concrete mixture should be pumped every ten minutes at the minimum speed.
8. The main reason that indicates improper operation of the concrete pump is the appearance of blockage of the concrete pipes. This process appears due to a long delay of concrete in a concrete pump, in the process of delamination or partial setting of a mixture that is prepared without observing the correct proportions or due to an increase in the density of concrete, which succumbed to prolonged vibration.
9. If the appearance of a traffic jam could not be avoided, do not start the device in operating mode, as this will lead to its breakdown. First you need to find the place where the plug is located, if it formed in the concrete pipeline, then you need to start the concrete pump at the minimum number of revolutions. To clean the concrete pump, use the banniks or wads that should be installed in it.
10. If the concrete pump is used in winter, then the concrete mixture that gets into it must be heated to a temperature of 25-30 degrees. Before starting work, it is recommended to insulate the concrete pipes and warm up the concrete pump with steam, the condensate must be discharged outside.
For the construction of a small facility, it is not always rational to use large-sized special equipment. An excellent solution to this problem will be the use of a mini concrete pump technique, which has similar parameters to the performance characteristics of large specialized equipment for construction. The small-sized concrete pump has proven itself well in monolithic construction, where an operational solution is required for pouring foundations and other supporting structures of buildings.
Why choose mini-appliances?
Buying a large stationary or mobile concrete pump does not always pay off. Expensive equipment can pay off after months and years, while you need to solve production problems. A mini concrete pump can be rented, and if funds permit, you can buy it on lease or under another credit program. In the construction segment, there are universal tasks where it is required to fill structures without using large-sized equipment, and at the same time, it is irrational to use home-made concrete pumps. The low price of special equipment with a full daily load will allow you to pay off in about 6-8 months, and renting a mini concrete pump can "recoup" the investment even faster, but again, subject to full daily load.
The market for small concrete pumps is quite extensive, there are Russian developments, but recently you can see mini-equipment made in Japan, China, the USA, South Korea, as well as a number of industrialized countries at construction sites. For low-rise construction, where there is an average level of the working cycle, only a mini stationary concrete pump is the best solution for organizing the working cycle process at the production site.
Technical characteristics of mini-special equipment
In order to properly organize the working cycle of work where concrete pouring is required, try renting a miniature concrete pump. Approximate technical characteristics of special equipment include:
- The maximum size of the hose feed with the solution is 150 meters.
- The maximum level of solution supply to a height of 50 meters.
- The main installation is an electric or diesel engine with a general operating principle.
- Fully autonomous travel mode.
Small concrete pump options
Before you know how to choose a concrete pump for construction work, we suggest that you familiarize yourself with the groups of special equipment. There are two types of specialized equipment on the market, which are represented by the following categories.
- Piston type. The most popular version of the concrete pumping group, which is used not only in the post-Soviet space, but also in highly developed countries. Thanks to the universal principle of the piston group, it is possible to organize a continuous cycle of supplying concrete mixture to the production site. The maximum level of performance of the concrete pump, m 3, depends on the technological chain of the organization of the solution supply by the machines of the piston group. Installation of the piston category of equipment takes place on a mobile chassis or on self-propelled equipment.
- Rotary system. This type of mini concrete pump is also used in a number of technological processes. Due to the presence of a sleeve with rollers, direct ejection of the solution in portioned parts is ensured. The delivery system bypasses the concrete pipeline and goes straight into the hose. The productivity of such equipment is 2-3 times less than in the piston group, but it is effective for highly specialized work of supplying concrete mixture to the construction site.
"The overall dimensions of a miniature concrete pump allow the installation of a hopper for receiving and processing concrete mixture."
At the same time, in the technological process it is required to fulfill strict time requirements for processing the mixture, which should not exceed 20 minutes, otherwise this will lead to the failure of the main technological equipment. Excess of the concrete processing time can cause premature wear of the special equipment, therefore, at the end of the work, it is recommended to thoroughly rinse all the units of the special equipment with a strong jet of water or other technological liquid intended for cleaning the concrete pump.
Features of the selection of small-sized concrete pumps
Considering the high popularity of buying and renting small-sized concrete pumps, we note the main technical and functional advantages.
- Mobility. The equipment is capable of maneuvering along the difficult streets and roads of a large metropolis, where the quality of concrete comes first, and, therefore, the prompt delivery of the concrete pump to the site is guaranteed by the acceptable size of the special equipment.
- Compactness. Considering the limited space of the production site, the mini concrete pump is the right solution for the construction process. For example, in order for Kamaz to fully turn around, it is necessary to provide a free space of 10 * 12 meters, for a miniature concrete pump, such a space is 5 * 6 meters, that is, if you carry out construction processes inside the workshop, then a small-sized concrete pump may well turn around at your production site.
- Financial benefit. For large-sized equipment, it is necessary to attract a sufficient number of auxiliary forces, on average up to 5-6 people. Mini equipment of a concrete pumping type provides for the involvement of 1 driver, and a maximum of 2 auxiliary workers. The financial component is quite impressive.
- Multifunctionality. The use of a concrete pump is not only about the supply of concrete mix. Some models of special equipment are equipped with a mixer that allows you to stir concrete if there is no way to invest in the time frame for pouring the solution on the production cycle.
- Performance. Despite its very miniature size, the special equipment has sufficient performance. The maximum volume of concrete processing, depending on the machine model, is 70-170 m 3. The maximum height of the hose supply and equipment operation is up to 25 meters, some models of special equipment will allow the solution to be raised to a height of 50 meters vertically and about 160 meters horizontally.
Popular brands of mini concrete pumps
Additional information about special equipment
Considering that many equipment manufacturers have provided additional options for machine control, it is necessary to carefully study the possibilities of using auxiliary processing equipment for conveying concrete mixture. The main weight of the equipment of the installation is about 1 ton, so it is possible to transport special equipment by low-tonnage transport if there is no mobile scheme of a mobile type. After finishing work with concrete, it is necessary to thoroughly rinse all units and components of special equipment from the formation of concrete build-up after the mass has hardened.