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Thermi-Lyon

THERMI-LYON is the world's first contract heat treatment facility. More than 60 years after its creation, this site has become the group's technological showcase.

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THERMI-LYON, a true technological showcase

Historically the group's first site, THERMI-LYON was created in 1960 to meet the needs of the Rhône-Alpine mechanical engineering industry.

Its high level of investment in human resources and technology has enabled it to extend its reach nationwide and internationally.

THERMI-LYON has played a major role in the development and industrialization of new heat treatment processes, and has won several MIDEST and A3TS innovation awards.

New processes have been deployed to improve the wear and galling resistance of stainless steels without compromising corrosion resistance: THERMI-SP®.

This powerful multi-treatment unit meets a wide range of customer requirements.

All equipment is linked by a supervision network, enabling continuous data acquisition and remote interrogation.

Address: 13 avenue du château de Gerland 69007 Lyon

1960

Creation date

1993

Date of first certification

DLC deposit specialist

THERMI-LYON has invested heavily in the development and mastery of DLC coating using PACVD technology.

An adapted environment (clean room) has made it possible to create a dedicated workshop for coating tribological layers.

Recently, THERMI-LYON developed a new range of DLC deposits based on PVD technology. This new development makes it possible to produce dehydrogenated carbon-based coatings for specific applications, depending on the working environment.

Since its creation, THERMI-LYON has adapted to different contexts and set up an organization to meet the requirements of the automotive, aerospace and medical markets, as well as the special machinery sector.

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vacuum cleanroom

Discover our solutions

Heat treatment
Heat treatment
parts partially coated with platin vacuum coating
Vacuum deposition
Vacuum deposition

Site contacts

Delphine BEUCHER
Site Manager
06 74 95 45 80
Delphine BEUCHER's LinkedIn profile
Cédric LAVOLEE
Sales engineer
06 61 28 84 78
Cédric LAVOLEE's LinkedIn profile
Yohan DOUEST
Sales engineer
06 32 07 59 51
Yohan DOUEST's LinkedIn profile
vacuum furnace at the thermi-lyon plant

    our thermi-lyon certifications

    EN 9100

    EN 9100 certification guarantees the quality management system requirements of the ISO 9001 series, and specifies additional definitions and notes for the aerospace and defense industry.

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    NADCAP Heat Treating
    logo nadcap heat treating

    NADCAP is an accreditation program for aerospace and defense subcontractors, designed to ensure the quality and reliability of products and services. This accreditation focuses on the special processes employed in the manufacture, testing and maintenance of components and systems used in these industries. Within the THERMILYON Group, NADCAP applies only to the special heat treatment process.

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    ISO 9001

    The ISO 9001 standard, widely recognized throughout the world, helps organizations improve their performance by meeting quality management system requirements and demonstrating a commitment to customer satisfaction.

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    Our latest news

    Discover the latest news on heat treatment and vacuum deposition.

    What are the implications of certifications for heat treatment in the aerospace industry?
    In the aerospace industry, every component must meet extreme standards for safety, performance, and reliability. Heat treatment plays a central role in achieving the desired mechanical properties, but it cannot be carried out without a strict framework for control and validation. This is where certifications and […] come into play.
    March 26, 2026
    What are the implications of certifications for heat treatment in the aerospace industry?
    Vacuum Deposition and Heat Treatment: Toward Ever More Effective Solutions?
    In an industrial landscape characterized by ever-increasing demands for reliability, durability, and performance, manufacturers are seeking solutions capable of optimizing the performance of their mechanical components. Heat treatment and vacuum coating have emerged as key technological solutions for addressing these challenges. Whether the goal is to increase […]
    March 24, 2026
    Vacuum Deposition and Heat Treatment: Toward Ever More Effective Solutions?
    stainless steel components requiring appropriate heat treatment
    What heat treatments are used for stainless steel components?
    Stainless steels are a family of materials that are essential in a wide range of industrial sectors, including medical, aerospace, automotive, tools, energy, and electronics. Their properties make them indispensable for critical components. However, even a material as high-performance as stainless steel requires considerable expertise to achieve its optimal performance. This is where treatments come in.
    March 2, 2026
    What heat treatments are used for stainless steel components?
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    Heat treatment in Île-de-France, a key driver for the performance of aerospace industry players
    With the presence of manufacturers, engine builders, equipment suppliers, and maintenance centers, the Île-de-France region occupies a strategic position in the European aerospace industry. In this environment, where every component must guarantee absolute safety, mastery of heat treatment in Île-de-France has become an essential factor in performance. Metal parts designed to fly, withstand [...]
    February 23, 2026
    Heat treatment in Île-de-France, a key driver for the performance of aerospace industry players
    How does vacuum deposition improve resistance to friction and wear?
    In many industrial sectors, component wear remains one of the main causes of reduced performance, premature failure, and additional maintenance costs. Faced with these constraints, the use of vacuum coatings has emerged as a leading technological solution for improving the durability of parts subjected to repeated friction. Thanks to […]
    February 2, 2026
    How does vacuum deposition improve resistance to friction and wear?
    tray containing medical devices made of steel and heat treated
    The role of heat treatment in extending the service life of medical components
    In the medical sector, every instrument, implant, or assembly component must guarantee an impeccable level of reliability. Parts are subjected to demanding conditions: constant contact with the human body, exposure to chemical agents, repeated mechanical stress, and intensive sterilization cycles. To ensure consistent performance over time, it is […]
    January 21, 2026
    The role of heat treatment in extending the service life of medical components

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