Heat treatment

We have one of the most modern and best equipped facilities in Europe. We have state-of-the-art, 100% automated Ipsen© furnaces.

State-of-the-art heat treatment

We have two production plants exclusively dedicated to the application of heat treatment.  We have state-of-the-art Ipsen©️ furnaces and we carry out our treatment in independent batches, complying with the highest quality standards.


sanjo group

Technical Features

1,500 kg loading capacity

±6 ºC temperature homogeneity

More than 9,000 t parts treated per year

Constant Monitoring

The different operations are carried out under controlled conditions and in accordance with the specifications and quality standards set.


The batch size is adapted to the technical needs of the parts, from 150 kg to 1500 kg, which allows the treatment of components of various sizes, maintaining the highest efficiency in the operation, the highest precision and the best use of energy.

Thermal Uniformity

The heating chambers are prepared to achieve perfect thermal uniformity, reaching temperature homogeneity ranges of ±6 ºC.

Fully Equipped Facilities

Our fully automated modular facilities are equipped with the most advanced technologies in hardware and control software. We have state-of-the-art, 100% automated Ipsen © furnaces, which allow us to operate different heat treatment processes for steel components.

Recirculation Devices

The oil quenching chambers equipped with recirculation devices (SuperQuench) allow the oil flow to be efficiently directed through the load, achieving uniform microstructural transformations of the material at all levels of the treatment load, as well as appropriate control of any dimensional deformations in the components.