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3D-printed multi-blade impeller used for cooling the generator circuit breaker at Saeul Nuclear Power Plant Unit 1

A 3D printed impeller ran 18 months at Korea’s Saeul nuclear power plant without a single defect

editorialteam - October 13, 2026

Manufactured in 2024, it was installed at Saeul Unit 1 in January 2025 and operated for 18 months under actual nuclear power plant conditions...

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A 3D printed impeller ran 18 months at Korea’s Saeul nuclear power plant without a single defect