A pressure blast cabinet uses a pressurized vessel (like a pressure pot) filled with blast media, which is then forced through a blast nozzle. Pressure blasting is significantly faster and more aggressive than suction blasting.
Increased productivity - Generally, you will be able to clean surfaces about 3 to 4 times faster using direct pressure as opposed to siphon blasting.
More aggressive force than siphon / suction blasting - Pressure blast cabinets deliver abrasive media at about twice the speed of siphon blasting cabinets. Heavy, caked-on residue is much easier to strip with a direct pressure blaster.
You can blast with heavier media - Metallic blast media, like shot or steel grit is not easily done in a traditional suction blast cabinet. Direct pressure cabinets mix the air and blast media in a pressurized pot and expel the abrasive into the cabinet. With a siphon blast cabinet, this is not easily done, as the media must fight gravity, and be drawn up through the blast hose. For shot blasting, a direct pressure cabinet is the equipment you should use.
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