Suction Blast Cabinets pulls the media, usually Glass Beads or Aluminum Oxide from a sump either in the bottom of the Blast Cabinet or in the Reclaimer as air passes over a port in the hand gun. As the air passes over the port, the air pulls the media in a Venturi action to the Gun Nozzle and out onto the part being Blasted. Suction Blast Cabinets are less expensive and very easy to operate and maintain. Suction cabinets are excellent for light to medium Blasting operations. If you need to Blast occasionally several hours a day a Suction Cabinet is best suited for your needs.
Pressure Blast Cabinets include a Pressure Vessel or Pressure Pot to power the flow of the media. The media is pushed out of the Pressure Pot with air through the hose, Nozzle and onto the part being blasted. Air Pressure Cabinets are more expensive in the initial cost. Pressure Cabinets require an Air Compressor large enough to generate 80-120 CFM, usually a 20-30 HP Compressor. Pressure cabinets are the cabinets of choice for continuous Blasting Operation where an operator may spend more than 6 hours a day Blasting parts.