About Us – The Present

Holt’s offer one turningof the most versatile large gas carburising furnaces in the UK, capable of holding long and/or wide components and heat treating them using carefully designed process to minimise distortion.

We provide specialist bar and shaft straightening services for companies around the UK, often provided in conjunction with carefully controlled heat treatment

We specialise in the “difficult” jobs that are not mass production or easily combined with a number of similar components and suitable for standard or routine heat treatment cycles.

Large or heavy components

Asymmetric shapes and profiles that are prone to stresses and movement in machining and during heat treatment

Separation of small components to prevent blinding and distortion during processing

Individually tailored processes in vacuum, carburising & hardening, normalising, annealing and stress relieving

Deep case nitriding

Helping our customers deliver the highest quality, on time, in full and with lowest total cost of acquisition.