Guyson Corp.’s seven-axis grit-blasting machine is designed to produce a specified surface roughness with greater consistency than manual or multiple-gun blasting methods.
The machine features a six-axis robot arm that serves as a blast gun manipulator and is attached to a 52 × 32-inch rotary blasting cabinet with a servomotor-driven, 24-inch turntable controlled as a seventh axis of motion. A part-holding fixture attached to the table locates the component, which can be oriented or rotated at controlled speed during the programmed process routine.
For components with through-holes, vents or internal passageways that could collect media during processing, core air is supplied to the turntable to allow a positive and adjustable flow of purge air through the component during blasting.
The system constantly maintains the blasting angle, nozzle-to-surface distance and surface speed while following the contours of the parts, eliminating over- and under-blasted surfaces. It executes the motion program identically each time, and can store and recall process recipes for more than 100 different components.
Features such as automatic regulation of blast pressure, media flow sensing, media level sensing, automatic media replenishment and screen classification of blasting grit also are available. A SCADA controls package also is available to display, capture and record data throughout each blast cycle, providing an audit trail to verify conformity to specifications or process work instructions.