The semi-finished CF composite components for the hybrid discs were produced and assembled by CompoTech using semi-finished steel components supplied by Hofmeister, which performed the final machining ...

Disc Cutter: A rotating cutting tool affixed to the front of a TBM, designed to fracture and remove rock during tunnelling and subject to wear due to mechanical and abrasive interactions.

The Top Cutter Solo is available in five widths – rigid-frame versions are 3m and 4m, and hydraulic folding variants are 4m, 5m and 6m. Prices start from £8,225.