Guyson Corporation has built an expanded abrasive wet-blast machine with an indexing table, rotary spindles and programmable nozzle motion to perform surface preparation work in manufacturing of turbomachinery components and other precision parts.
The slurry blasting enclosure of the 72 x 72-inch machine is divided into two chambers to isolate the slurry-blast operation from a rinsing zone and the front load-unload station. The 120-degree cam indexer of the 48-inch diameter table is sufficiently accurate to allow automated loading by a robot or pick-and-place device. At each index, the partition doors are made watertight by inflatable seals.
Inside the wet-blasting chamber, six slurry-blast guns are attached to a roof-mounted linear actuator. Multi-adjustable brackets enable the wet blasting guns to be pre-positioned at the correct angles and offsets for coverage of target surfaces. The component is fixtured securely on a shielded ball bearing spindle and is rotated at controlled and adjustable speed, as the blast guns move up or down in the vertical axis, according to the stroke distance, traversing speed, location and stroke count that is programmed in the process recipe for the individual part.
A full description of the rotary indexing wet-blast machine can be found in our Product News archive. READ MORE