Problast Dustfree Blast Machines

Problast®
Pressure-Fed Machines

In the pressure-fed version blast media stored in the pressure vessel is metered into the air stream and directed with up to supersonic velocity at the workpiece through a specially designed nozzle. Pressure-fed blast machines are mainly used for

• Rust removal
• Descaling
• Cleaning
• Paint stripping
• Roughening
• Shot Peening

For pressure-fed blasting mainly metallic media and aluminium oxide are used.

Continuous Blasting (K-version)

Special applications sometimes require uninterrupted blasting operation for several hours*. In the case of pressure blasting this means that no break is available for the refilling of the pressure vessel. This is rather achieved by a transfer vessel which feeds the main pressure vessel. Whereas the abrasive residing in the main vessel always remains under pressure, the transfer vessel is operating in continuous cycling mode: depressurization – refilling from the storage hopper – pressurization – refilling of the main pressure vessel.

*) An optionally available external refilling hopper ensures a constant operating mixture by feeding fresh abrasive into the vacuum hose.

Problast®
Suction-Fed Machines

In the suction-fed version the blast media is drawn to the nozzle by a venturi generated within a special gun assembly. Suction-fed blast machines are mainly used for

• Mattening
• Roughening
• Cleaning

For suction-fed blasting mainly non-metallic media such as glass beads and aluminium oxide are used.