Guyson Corporation has introduced a more compact and economical direct pressure media delivery module available on several sizes of industrial manual cabinets. The Model 8-EP is the largest blast cabinet to be fitted with the novel pressure-blast system.
Pressure-blast media delivery is preferred for processing of components with a large amount of surface area and for surface treatment operations such as descaling, etching, coating removal and surface preparation that may require greater kinetic energy. Because the Model 8-EP’s direct pressure blasting system accelerates media throughout the length of the blast hose, it is capable of delivering media particles at much higher velocities than suction-blast equipment operated at the same blast pressure. Industrial blast cabinet users report that pressure-blast usually proves to be at least four times faster than suction-blast.
Consisting of a cyclonic separator linked to an A.S.M.E.-certified pressure vessel, the pressure-blast module is attached to the rear of the blast cabinet. The standard pressure vessel holds approximately 0.8 cubic foot (22.6 liters) of media.The separator/media reclaimer removes dust from the recirculated blast media and is powered by a freestanding cartridge-type dust collector with an air extraction capacity of 500 cubic feet per minute (14 m3/min.). Flexible ducting connects the dust collector to the cyclonic separator, allowing the collector to be positioned wherever it is most convenient.
The blast chamber of the Model 8-EP is 36 inches high at the rear of the sloped cabinet,42 inches wide and 42 inches deep (914 H x 1066 W x 1066 mm D). Open access to the finishing chamber is provided by side- and top-hinged doors at the front, to simplify loading of bulky work pieces, as well as a convenient side-hinged, slam-shut door on one side. The cabinet is optionally equipped with a rubber-flapped crane slot in the roof of the blast enclosure, above the side door, to facilitate loading and unloading of heavy components by an overhead hoist or crane.
Most types of dry blast media can be used in the Model 8-EP pressure-blast cabinet, including plastic grit, glass beads and fast-cutting mineral grit, such as aluminum oxide, giving the system great versatility for a wide range of blasting applications. When harsh abrasive media are to be used, the cabinet is supplied with protective features that include rubber lining of the blast chamber, a wear resistant boron carbide blast nozzle and a sacrificial inner abrasion window mounted in a quick-change frame to prevent accidental frosting of the safety-glass viewing window.
Prospective users of industrial cabinet-blast equipment are encouraged to submit sample components for free laboratory testing and application engineering evaluation at the Guyson factory in northeastern New York State.