Guyson Corp.’s Model 7 shot blasting system features two operator work stations that enables either two users to blast simultaneously or a single user to change positions and conveniently reach all aspects of a component. Each work station has its own view window and independently adjustable blast nozzle.
With overall dimensions of 36 × 60 × 36 inches, the shot blast chamber features a full-width, side-hinged door for frontal access and a slam-shut 19 × 19-inch side door. The top-hinged upper section of the cabinet front can be raised for loading tall components. All doors are equipped with safety interlocks that prevent operation until securely closed.
Stainless steel shot is collected at the base of the blast cabinet and pneumatically conveyed up to a cyclone media reclaimer that separates dust and fines before feeding reusable shot into a 3.5-cu-ft capacity pressure vessel. The pressure pot automatically recharges with fresh shot when both foot pedals are released. Two metering valves at the bottom of the pressure vessel enable control of the shot flow to each pressure-blast nozzle. The blasting pressure of each nozzle also is individually regulated.
The system also features a dust collector with an extraction capacity of 1,000-2,000 cfm of air, which maintains negative pressure in the blast cabinet and balances the flow of air to the media reclaimer. An optional wet dust collector is suited for collecting potentially flammable dusts that may be generated when processing components made of titanium, magnesium or other reactive metals and their alloys.
Abrasion protection features include a bonded-rubber lining of the blast enclosure; cast urethane ducting to the reclaimer; lining of the cyclone inlet elbow, body and cone; and boron-carbide-lined blast nozzles.