Russia Deploys “Spider Robot” to Inspect Nuclear Reactor Welds
The robotic system uses ultrasound to detect microscopic flaws in reactor components—three times faster than traditional methods.
At the Atommash plant, part of Russia’s Rosatom engineering division, engineers have begun using a robotic inspection system designed to check the welds of nuclear reactors and steam generators. The technology, nicknamed the “spider robot” for its shape and mobility, represents a major leap in precision and safety for nuclear manufacturing.
The robot uses ultrasonic testing to scan welds up to 30 centimeters thick, identifying even the smallest structural imperfections. Controlled remotely, it crawls across curved or hard-to-reach surfaces where human access is limited. According to Rosatom, it performs inspections three times faster than manual methods, which previously required technicians to move ultrasonic probes by hand.
Smarter safety for nuclear energy
Oleg Shubin, Director of Quality at Atommash, said the new system demonstrates how digitalization and robotics are reshaping nuclear safety.
By automating one of the most critical and time-consuming safety checks in the nuclear industry, Russia’s “spider robot” shows how advanced robotics can minimize risk, boost efficiency, and strengthen quality control in one of the world’s most demanding industrial environments.
