Robotic blast system includes extended lance nozzle

Guyson Corp. has designed and built a robotic blast system with an extended lance nozzle for precision grit blasting and surface preparation of the IDs of industrial gas turbine components in manufacturing and repair operations.

A FANUC M-710iC robot serves as the lance manipulator in an expanded process chamber with a servomotor-driven rotary table that is controlled as an auxiliary axis of robotic motion. The blasting enclosure is fabricated with an added rear vestibule to allow room for full movement of the pressure-blast lance as the robot follows the toolpath required for coverage of complex-shaped internal surfaces.

The machine is designed with an enhanced media reclamation and delivery system for two different grit sizes, including a separate cyclone separator, classifier, and pressure pot for each. The changeover from one grit size to the other is accomplished in less than 5 min., says the company. The selected media, as well as the status of all valves and elements of the media delivery system, is detected automatically and displayed at the touchscreen HMI.