China's BEST Project Completes Delivery of Seven TF Coil Boxes
On August 30, 2026, as the final BEST Toroidal Field (TF) coil box passed all acceptance inspections and was shipped, Shanghai Electric Nuclear Power Equipment Co., Ltd. completed the development of seven core coil boxes for the BEST project. The project spanned approximately two and a half years, from the initiation of the first laser weld in January 2024 to the completion of all girth welds on products by the end of May 2026. The BEST TF coil box is a core pressure-bearing component in the magnetic field system of a tokamak device, primarily used to support the magnet structure, confine high-temperature plasma, and ensure stable device operation. Featuring an irregular and complex structure, high integration precision requirements, and demanding service conditions, this component imposes stringent requirements on specialized laser welding, precision machining, and geometric tolerance control...
2026-09-07
