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Faq Vacuum cleaners
1. What do the vacuum and air flow rate values mean?
The are two specific characteristics of vacuum cleaners that can be summarised as follows:
vacuum is the ability to lift the debris to be removed. The higher the value, the higher the ability to lift it.

The air flow represent the ability to transport the thus lifted debris and, in the case of large quantities of dust, to keep it suspended within the hoses.
The correct ratio of both values, therefore, enables the vacuum cleaner to lift the debris to be removed and convey it to the hopper at the same time.
2. Can I remove dust and liquids at the same time?
Some models are designed to remove solids and liquids simultaneously. This is done by directing the air flow (which conveys the solids and liquids) not directly onto the filter but onto a dynamic (Cyclone) separator. In this way, heavier debris is collected at the bottom of the container (and liquids and solids can be separated by means of grids), whereas the air containing lighter particles is filtered and released back into the environment.

If liquids are vacuumed using a dry/wet vacuum cleaners without dynamic separation, the paper or fabric filter needs to be removed.
3. In the case of industrial vacuum cleaners, is the single-phase or three-phase model better?
We're talking about the power supply, of course. If you have a choice, vacuum cleaners with a single-phase power supply are better for intermittent, limited use. Three-phase vacuum cleaners, on the other hand, are more suitable for prolonged or even continuous operation.

However, it is important to remember that only three-phase vacuum cleaners can deliver high power, which is often needed for industrial applications.
4. Which version is better for the vacuum cleaner's barrel or bin? Stainless steel or painted steel?
The container for vacuumed debris and filtering chamber can be made either of stainless or painted steel.
In some cases, stainless steel is used on manufacturing or performance grounds (e.g. use in ATEX environments).

In the majority of cases, cost-effectiveness, greater ease of cleaning and the functional characteristics required make painted steel a more than adequate material choice. Where needed, however, it is always possible to request a stainless steel version.
5. Can two operators work at the same time?
Some industrial vacuum cleaners can be operated by two operators at the same time, by installing special accessories.
This option can be envisaged for higher-powered models, whose air flow is adequate to support this type of requirement. (roughly from 2.9 - 3 Kw upwards). Of course, the distances over which you can work have to be verified case by case.
6. What does ATEX mean?
The vacuum cleaner may have to be used in areas where explosive powders or gases may be found (so-called ATEX environments).

Depending on the likelihood of these eventualities, such areas are classified into zones (by the end user) in compliance with Directive 94/9/EC and 99/92/EC. The zone number identifies the type of area. The equipment used in these areas must therefore meet precise manufacturing criteria. TBM's models are designed to be compliant for zone 22 (potentially explosive zones).
7. How do I choose the type of filter?
The models are equipped with L-class filters as standard.

M-Class filters are available for greater filtration needs (greater ability to retain the dust that goes through the filter). For specific suction operations, such as fine dust or bacterial charges, class H (Hepa) filters are available. These filters cannot be used on their own but must be preceded by lower-class filters (L or H). Additional filters (nylon, TNT or disposable paper bags) are also available for specific requirements.
8. When removing large quantities of dust, do I have to interrupt the job often or can I work continuously?
For this type of application, we developed a model - obviously, three-phase - that can work on a continuous basis as the filter cleaning operation is effected by air flow inversion and by the mechanical action of a hammer also powered by the air flow.

Some models (SEA) are equipped with an automatic electrical filter shaking mechanism for less extreme applications.
9. Are the vacuum cleaners noisy?
Noise is now an unwelcome guest even in industrial environments. As a result, all means of reducing it have been adopted, from the design and the air flows of the vacuum's guide bases through to turbine silencers for both air outlets and pressure relief valves.

A special mention goes to the 53 dB (A) Piccolo Silenzio vacuum cleaner and to the M 602 SE/603 SE and M 1003 SE models, that are equipped with suction and outlet pipes capable of significantly reducing emitted noise levels.
The former allows operators to carry out cleaning operations even in areas where the utmost discretion is needed.
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