Come funziona una sabbiatrice/pallinatrice BLASTLINE a depressione

The picture below shows a Blastline vacuum sandblasting/shot-peening machine complete with a bag filter. The aspirator is located on the exit station of the cyclone, before the bag filter.

The picture below shows a Blastline vacuum sandblasting/shot-peening machine complete with a cartridge filter. In this model, the aspirator is located at the exit station of filter, being the filter the last component of the line.

The cartridge filter solution is better in the technical aspects and performances for two fundamental reasons:

1. No abrasive grain is delivered to the aspirator
2. The dust filter is under pressure all the time and, therefore, dust leaks are prevented.

• Through a proper use of the blast gun, the abrasive will be blown onto the surface to be treated with a precision jet. Some residue (dust) will result from the breakage of abrasive grains during the process. In addition to that, some residues will be released by the treated surface.
• The mixture of unbroken abrasive+dust+residues will fall on bottom of the hopper shaped cabinet and continously collected by the vacuum system..
• The mixture of unbroken abrasive+dust+residues will be transferred to the cyclone (the reclaiming apparatus) where the unbroken abrasive grains will be finally separated from dust and residues.
• The reclaimed abrasive will settle in the storage tank on bottom of the cyclone, ready to be used for the next sandblasting cycle..
• The dust and residues, after separation from the abrasive grains in the cyclone, will be transferred to the filter (bag filter or dust collector) to be finally intercepted and filtered.