Most direct pressure blast cleaning is done at 40-60 PSI. Due to these lower pressures, abrasive media breakdown is greatly reduced even though a high volume of media is being directed at the part to be cleaned. Most of the media is recovered through the recycling process of this abrasive blasting system.
Direct pressure blasting is ideal for tough jobs, applications where large surfaces must be cleaned quickly, production blast cleaning or jobs that require the use of heavy media or large mesh sizes. Popular media that are used in direct pressure cabinet systems are aluminum oxide, white aluminum oxide, urea and other plastic abrasives, corn cob grit, walnut shell grit, glass beads, pumice, crushed glass grit, silicon carbide, steel grit and steel shot.
Kramer Direct Pressure Cabinets feature large dust collectors, heavy-duty blast hoses, tungsten carbide nozzles and heavy-duty mixing valves. Designed for speed, pressure cabinets produce high media velocities and volumes. You get 2-3 times the production speed with a pressure system as with a conventional suction system. The use of a pressure tank forces media through the blast hose rather than siphoning it, resulting in more efficient use of air and greater control of media flow.
These cabinets can be used with a wide selection of media and pressure...pressures low enough to blast delicate parts and high enough to handle the most demanding cleaning and finishing operations. With pressure blasting, you get top performance at both ends of the pressure scale!
In pressure blasting, a controlled quantity of media is pressurized by drawing through a special ASME pressure tank. It is joined by compressed air entering the system from your air compressor. The air and media mixture are then propelled together through a single hose to the nozzle at an extremely high speed. The media is recovered and reclaimed for reuse. Broken down media and debris are removed and trapped in the dust collector.
DP850 Retrofit Package
Converts a siphon type cabinet to a direct pressure unit. Can be adapted to any standard siphon-type cabinet with a minimum of effort to afford you the speed and efficiency of direct pressure blasting. Includes 850 CFM abrasive separator. Abrasive capacity: 150 lb. Overall dimensions: 70" x 104" x 40"