This system is designed to grit blast large aluminum structures used for building outdoor bleachers and stadiums. The grit blast process is performed using 8 direct pressure nozzles moving on a high speed gun mover to provide uniform coverage on parts up to 72 inches (1.8 m) wide and 32 feet (9.75 m) long. The grit blasted surface provide good friction and slip control for steps and horizontal surfaces used in the outdoor arena industry.
Photo sensors mounted across the width of the blast machine inlet detect the width of the incoming parts, and turn on or off blast nozzles to ensure proper coverage without using excess compressed air.
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