Custom Crane Solution for Nuclear Reactor Maintenance

This technical report discusses the development and implementation of the SKY-RISER, a custom-engineered crane designed for nuclear reactor maintenance at an Arizona power plant. The report outlines the challenges faced by the facility, including dependency on a single overhead crane for control rod replacement, which led to extended shutdowns and significant financial losses, with downtime costs reaching approximately $1,000,000 per day. The SKY-RISER crane was engineered to operate independently, allowing simultaneous maintenance tasks and significantly reducing outage durations. The report details the specific design requirements, including precision operation, compact size, and remote control capabilities, which were essential for the confined space of the reactor containment. The results of deploying the SKY-RISER demonstrated measurable improvements in maintenance efficiency, reduced downtime, and enhanced safety during operations. The findings indicate that custom crane solutions can effectively address specialized maintenance challenges in the nuclear industry, offering a viable alternative to traditional overhead cranes.