Spider Robot Triples Nuclear Weld Inspection Speed
Summary
- Spider-style robot performs ultrasonic weld inspections ~3× faster.
- Designed for thick sections—reported up to 30 cm welds.
- Target use: nuclear components where access and safety are tight.
A new spider-like inspection robot is being introduced for nuclear welds. According to Rosatom, the tool carries out ultrasonic testing about three times faster than legacy methods and can scan welds as thick as 30 cm. The company positions it for areas where people struggle to reach or should not be exposed for long periods.

Coverage in tech media echoes the speed claim and frames the machine as a purpose-built crawler for reactor work. While detailed specs are limited, the pitch is clear: faster coverage of heavy-section welds with automated data capture. For nuclear fabricators and service teams, that points to less outage time and more repeatable results during in-service inspections.
For welding and NDT professionals, the standout is not the spider look—it’s the cycle-time claim on thick sections. If borne out in field use, a 3× uplift would change planning for ultrasonic weld QA/QC on large vessels, nozzles, and safe-end joints.
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