How to choose a construction vacuum cleaner: types of devices, basic selection criteria, additional functions

Construction vacuum cleaners have the simplest working principle. The electric motor acts thanks to the fan. It is he who creates the maximum vacuum within, therefore, is considered the driving force. The incoming air along with the dust moves along the device’s hose and eventually enters the reduced pressure zone.

The largest particles fall directly into the dust collector, while the smaller ones capture auxiliary filters. And only after passing this system, purified air is ejected through the hole, which is located at the outlet of the unit.

The main elements of the device are:

• fan and engine;
• a filter that purifies the air;
• container for collecting garbage and dust.

In order to adequately choose a vacuum cleaner, it is necessary to understand the specifics and features of this apparatus, which will be discussed later in the article.

Varieties of construction vacuum cleaners

It can be conditionally divided into two types: professional and semi-professional and household. They can also be distinguished by suction strength, parameter, potential and performance without pauses. Let us dwell on the first classification.

• Household. Suitable for cleaning small rooms and small hours of work (several times a week). These options are most accessible, as they are purchased at a low price.

• Semi-professional differ from the first modification only in the highest engine power. In addition, they quickly adapt to construction waste. IMPORTANT! It is not necessary to carry out wet cleaning, because the bag can tear due to the ingress of large material. This kind of vacuum cleaner is also inexpensive. A plus may also be the ability to conduct both home cleaning and cleaning in a car or garage.
• Professional. Suitable for cleaning in large rooms, as it is for them that they require huge time costs and a special apparatus. Designed to work on construction sites and in production. For them you can give a fairly high amount of money, but the price is justified. These units have a powerful engine with a bypass. The bag for household garbage is durable, it is even possible to use it for wet cleaning. The device is cooled by a separate stream of air. Such vacuum cleaners can be subjected to various tests.

Criterias of choice

Of course, choosing a construction vacuum cleaner, you should not focus on the price. It would be more appropriate to pay attention to the characteristics of the device. Only then will the upcoming work be carried out effectively.

Main criteria

• Power. The size with which the unit will cope will depend on its size. The highest rate is anything above two kW. Conventional vacuum cleaners are 1 - 1.5 kW (this provides the ability to let out through itself 50 liters of air per second). However, this criterion has a big impact on performance, and besides, information about this is not always possible to find.

That is why you should focus not on it, but on the following points:

• Dust box volume. First you need to decide what kind of work you get a vacuum cleaner for. As a rule, it is from 20 liters to 50. If cleaning is expected with a small amount of garbage, then you can take the optimal amount. However, if you take professional cleaning at a construction site, the value sometimes reaches up to one hundred liters;
• Since the weight and equipment are quite large, then pay attention to way to move. It should not be difficult;
• Container capacity. This criterion can be viewed ambiguously. On the one hand, it affects the size of the device. Therefore, it will be inconvenient to work with large dimensions, but with a significant capacity. And on the other hand, the greater its indicator, the less times you will have to change the bag and clean it of garbage;

• Type of dust collector. There are two varieties: reusable cloth and paper with a single use. The first of them needs to be changed a large number of times, and it also often passes small debris and dust through it. Although they are much stronger than paper ones, they can tear if large materials get in.

The second - disposable, which are much more convenient to use. Without much difficulty, you can get dirt, which, in principle, can be thrown out with a dust collector. However, they also have their drawbacks, cons. In addition to low strength, air resistance can increase, which usually leads to a lack of power of the device for operation.

If construction forces a considerable number of times to clean, then using paper bags can cause financial difficulties. The price for it is a decent amount;

• Terms of Use. Of course, you need to take into account that moment - for what purposes you are going to use a vacuum cleaner. And your choice must be consistent with pollution levels. There are several of them: L, M, H, Atex. They are written as the degree of danger of contamination increases.

The first is due to construction waste. The second is average. For it you need to use more than one filter. At maximum, you must use a special system that will provide filtering. And the latter needs an explosion-proof apparatus.

Additional functions

These are the functions that make it easier for you to work with the device, as well as with cleaning.

• Suction power controller;
• Filter cleaning on an automatic basis. The valve, with the help of which there is a change in the direction of air formation, thereby purging the filter is provided and clogging is eliminated. Such an additional element is located above the filter itself;
• To protect the engine from overloads, a special defense has been created. There is a special need for it in extreme and severe cases;
• At the maximum filling of the dust collector or with a clogged filter, the indicator is able to display such information;
• If you need to connect the device with splitters or with a hose, then adapters that allow you to do this are useful.

Conclusion

For a really reasonable choice, you have to think carefully about the goals of buying a construction vacuum cleaner. And already on this basis, deal with each characteristic of the unit. For example, to clean industrial premises you need an apparatus with great power and a large dust collector. For cleaning garages or a car, a budget option is suitable, which will be able to remove only dust and small debris. However, you should always refer to the instructions, as some vacuum cleaners are afraid of water and certain types of garbage.