TE Magnetics HTS magnet systems

Commercial
Tokamak Energy
Tokamak Energy
TE Magnetics HTS magnet systems

Overview

The company's high-temperature superconducting magnet business, built on REBCO tape wound in-house, sold both into fusion programmes and into non-fusion markets including power distribution, propulsion, motors and generators, and analytical science. Demo4, its 44-coil demonstration system, is the technology proof point.

Demo4 reached 11.8 tesla with seven million ampere turns in November 2025, the first HTS magnet system to reproduce fusion-relevant magnetic fields at system level. The division won the £70M STEP Magnet Systems Partner contract in April 2026, acquired Ridgway Machines in 2025 to expand manufacturing, and is working with Furukawa Electric to build UK HTS tape capability.

Key Specs

Demo4 Field Strength

11.8 T at cryogenic temperatures

Demo4 Ampere Turns

7 million

STEP Contract

£70M to March 2029