Vacuum cleaners
Vacuum cleaners are suitable for removing dust or solids from surfaces in general (dry vacuum cleaner) and removing liquids from floors or containers (wet vacuum cleaner). A wide range of single phase and three-phase power supply, with various solutions and accessories designed to cope with any situation: sporadic dust removal by suction under continuous production lines, drying of a floor treated with the
single disc machine,
intake of processing oils in a work centre.
What do the suction vacuum and air flow rate values mean?
These are two typical vacuum cleaner characteristics that we can sum up in this way:
Suction vacuum is the capacity to lift the material to be removed. The greater the value, the greater the lifting capacity.
The air flow rate is the capacity to convey the lifted material and, when there is a lot of dust, to keep it suspended in the tubes.
The correct combination of the two values therefore allows the material to be lifted and, at the same time, conveyed towards a collection container.
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, the heaviest material is collected at the bottom of the container (and liquids can be separated from solids via grilles), while the air with the lighter particles is filtered and sent back into the environment.
When removing liquids with a vacuum cleaner, or for liquids with no dynamic separation, the paper/fabric filter must be removed.
In the case of industrial vacuum cleaners, is the single-phase or three-phase model better?
We are speaking about the power supply, of course. If you can choose, the vacuum cleaners with a single-phase power supply are better for intermittent, limited use. Those with a three-phase supply are more suitable for prolonged (or even continuous) applications.
But it is essential to remember that only the three-phase vacuum cleaners offer those higher power levels often necessary in industrial-type applications.
Which is the better vacuum cleaner tank - the one in stainless steel, or the painted one?
The suction material container and filtering chamber can be made of stainless steel, or painted.
In some cases, for production or performance reasons (see e.g. ATEX environments) stainless steel is used.
In most of the cases, the economical product, easy to clean and functional characteristics of the material required make the painted material more than adequate, but available when needed is the ability to ask the stainless steel model.
Can two operators work at the same time?
Some industrial vacuum cleaners can be used by 2 operators simultaneously, if the appropriate accessories are installed.
This is possible with the more powerful models, where the air flow is right for this type of necessity.
(roughly from 2.9 - 3 Kw upwards). Of course, the distances over which you can work have to be verified case by case.
What does ATEX mean?
It might be necessary to use the vacuum cleaner in areas where there are potentially explosive dusts or gases (these environments are usually called ATEX).
Depending on the chances of these conditions arising, these areas are classified (by the end customer) according to directives 94/9/EC and 99/92/EC, into zones. The zone number identifies the type of area. The equipment used in these areas must therefore meet precise manufacturing criteria. In the case ofComac, the available model, is designed for the zone 22 (dust with low risk probability).
How do I choose the type of filter?
The models are equipped with class L filters.
For increased filtering needs (a greater capacity to hold back dust that passes through the filter), there are class M filters. For specific suction operations such as fine dust or bacterial charges, class H (Hepa) filters are available. These filters cannot be used by themselves - they must be preceded by filters of a lower category (L or H). Additional filters (nylon, TNT or disposable paper bags) are also available for specific requirements.
Are the vacuum cleaners noisy?
Noise is now an unwelcome guest even in industrial environments. All the precautions have consequently been adopted in order to reduce it: from the shape and air flow in the machine heads, to the silencers fitted to the turbines (both on the discharge and the pressure limiting valve).
Special mention must be made of the CA15 Silenzio vacuum cleaner with its 53 dB (A), and the models CA 2.60 SE/SEA and CAV3.100 SE/SEA which have channelled suction and discharge tubes to considerably reduce noise emissions. The former allows you to carry out cleaning operations even in environments where the maximum discretion is necessary.
