Construction work is a long process, even if it concerns the construction of a private house. To help in this difficult matter can properly selected tools, and some of them - significantly reduce the time of work. One of these "helpers" is a concrete mixer. But how to choose a concrete mixer, so that the ideal price-quality ratio? And to make it absolutely simple.
Scheme of the device concrete mixer.
It is important to note that this unit allows you to perform brickwork or pouring the foundation, without being distracted by mixing concrete (work is not only time consuming, but also requires a lot of physical strength).
To choose a concrete mixer, you first need to estimate the amount of upcoming work. The construction of a residential building will require more concrete than, for example, the construction of a garage or bath. Therefore, the main characteristic of a concrete mixer is the volume:
The device is a concrete mixer with an electric drive.
- Up to 100 liters. This concrete mixer weighs about 20 kg, designed for the construction of small buildings and repair work.
- 100-150 l. This range includes the optimum volume of 130-140 liters, which universal concrete mixers possess, suitable for diverse works of a particular nature. Such a unit produces enough concrete to build a sauna, a small house.
- 150-300 l. A concrete mixer of this size weighs about 50 kg, which makes it difficult to transport. Used for the construction of houses with a height of 2 floors and more.
- A volume of over 300 l have heavy (from 160 kg) concrete mixers, which are used on professional construction sites (construction of industrial buildings, apartment buildings).
But you cannot choose a concrete mixer only in terms of volume. Such devices have different power and additional features that can facilitate the work. The latter include the function of loading components and unloading the finished mixture. It can be either automatic (typical for concrete mixers with a volume of more than 300 liters), or manual. To build a house, it is more common to purchase a concrete mixer, in which the loading is done by hand or with a special mechanical bucket. To unload it, a handle (lever) is attached to it, with the help of which it is tilted, and the mixture is poured into the substituted container.
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Capacity depends on the estimated time of continuous operation. Till 12 o'clock - use a concrete mixer of small power (to 800 W). You plan to work longer - get a powerful concrete mixer - from 1000 watts.
The principle of operation of the device matters
Option concrete forced type.
Concrete mixer can choose the principle of operation.
Their construction market offers two: forced and gravitational action. Forced mixing looks like this: all components are poured into the container, and the 4 blades installed inside are mixed. Gravitational mixing looks different: ingredients are poured into the drum, after which the blades unwind inside, and the capacity itself moves up and down. Thus achieve the only concrete mixture.
Concrete mixers with a forced operating principle are designed for liquid mixtures without large-caliber additives and have a large volume. Therefore, gravity concrete mixers are often used for private construction. With their help, you can prepare a mixture of liquid, hard, plastic, with the addition of rubble or other material of large fractions.
To date, there are concrete mixer gear and the crown. The first ones are much more expensive, but more reliable with intensive loads. For work on the construction site of a private house, a circular concrete mixer is quite suitable. The quality of the mixture is the same in both species.
Another point concerns the duration of action - continuous and periodic. If you plan to work in which you have to stop the mixer in the mixing process, then choose a unit of periodic action. It is forbidden to stop the device of continuous operation (spoil the mixture).Back to table of contents
The choice of cement mixers: basic recommendations
Determining which concrete mixer to choose, do not forget about the voltage necessary for its work. Universal concrete mixers used in private construction most often work from a standard network of 220 V. Concrete mixers of production capacity operate from an alternative power source, since the required networks cannot withstand the electrical networks.
If you plan to work in the winter, pay attention to the models adapted for this. Most of the concrete mixers are designed for use in the spring-summer-autumn season.
There are a few nuances that should not be overlooked.
Among the countries that produce concrete mixers, Italy, France, Germany, Poland and Croatia are well recommended. They differ from domestic units by convenient transportation devices (trolleys) and higher-quality output mixtures.
Check in advance the rules of operation, as their violation can lead not only to a deterioration in the quality of the mixture, but also to the failure of the concrete mixer itself.