Usually used in the wood or plastic sector ( pvc, composite materials, etc ..), they are very easy to use with practically non-existent maintenance, they can be single (single bag) or multiple mounted on a single structure for space optimization.
The operating philosophy of these line of vacuums cleaners totally differs from all the others by having the aspirated material that comes into direct contact with the fan blades and for this reason it is strongly discouraged for use for the aspiration of metal residues that over time they could damage the fan even though it is a special reinforced fan.
For this model Italyvacuum technicians have designed a special fan with curved blades, the result of in-depth mathematical calculations on air flows that make it the most powerful model in the sector compared to the same power.
In the case of aspiration of toxic dust or in some way substances harmful to human health, there is a faired version that allows you to channel the filtered air outside the work environment in order to comply the regulations in force on the matter.
From the final position of the aspirator there may also arise the need for a strong reduction of the noise produced by the centrifugal fan which in these cases can be enclosed within special sound-absorbing bulkheads that drastically reduce the decibels produced.