Twin Table Robotic Grit-Blast System

Guyson Corporation’s robotic blast system with two turntables on a shuttle transfer cart facilitates loading and unloading during the automated grit blasting cycle.

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Guyson Corporation’s robotic blast system with two turntables on a shuttle transfer cart facilitates loading and unloading during the automated grit blasting cycle. The RB-72 TT was designed for production descaling and surface preparation of components up to 66 inches in diameter and weighing up to 4,000 lbs.

A six-axis FANUC M-710iA robot is mounted on a pedestal in a vestibule at the rear of the blasting enclosure and isolated from the grit-blast environment by a custom-tailored suit of laminated fabric. The robot is used to direct two pressure-blast nozzles attached to the end-of-arm tooling. The FANUC R-30iB controller stores motion programs for processing dozens of different components and is configured as a slave to the robotic blast system’s programmable automation controller (PAC).

The twin turntables of the RB-72 TT are servomotor driven and controlled as a seventh and eighth axis of coordinated robotic motion to allow precisely regulated rotation or radial orientation of components during the robotic blasting and air wash blow-off cycles. Each table is designed to accept and positively locate interchangeable fixtures for a range of different sized components.