The Louis Schweitzer manufacture (Le Mans)
The Louis Schweitzer Manufacture (Le mans, France) is dedicated to the conception and development of ground linkage systems for the entire Renault Group. Its plant manufactures chassis components for thermic, hybrid and electric vehicles of the Renault, Dacia and partner brands.
- FOUNDED IN: 1920
- LEGAL FORM AND CAPITAL OWNERSHIP: S.N.C (a form of partnership) with capital of €15,244,900 fully owned by Renault SAS (France)
- ACTIVITY: Powertrains, foundry
- WORKFORCE: 1,712 at December 31, 2025
- AREA: 69 ha, o/w 28 ha of covered buildings
- CERTIFICATIONS: ISO 9001, ISO 14001, labels SMR and RHP
Main products
Model:
- Chassis: front axles, rear axles
- Components: subframes, axles, lower arms
- Casting parts: Brake discs, brake drums
PRODUCTION 2025
- Chassis parts: 1,3 million units
- Cast iron foundry: 95 000 tons
Environment & Energy
The Louis Schweitzer Manufacture reduces CO2 emissions from its production activities by favouring internal recycling of waste materials. Preserving natural resources is a priority, with work on water recycling, energy recovery and waste management.
Quality
All our quality control processes enable us to meet our customers’ most exacting requirements, from design to manufacture.
Safety
The Louis Schweitzer Manufacture strives to offer its employees a safe and motivating working environment, with a strong commitment to health, safety and ergonomics.
News
Le Mans, Renault Group’s chassis expertise hub
At Renault Group’s Le Mans site, chassis are designed, tested and manufactured. Although largely unseen, this essential expertise has evolved through the decades, adapting to new materials, electronics, digital technologies and, more recently, electrification. Here, mechanical heritage and innovation come together, supported by a rich legacy within a site that has been operating for more than a century.
Our history
Back to the key dates
- 1920: The first buildings and activities start up at the Louis Schweitzer manufacture
- 1955: The site begins to specialise in the production of chassis components
- 1999: The Auto Châssis International structure, bringing together engineering, manufacturing and marketing resources for chassis components, is created to diversify the customer portfolio.
- 2006: The site returns to 100% Renault Group ownership to focus on projects for its brands.
- 2008 : The foundry benefits from new automated facilities to boost its competitiveness
- 2015: An investment of over €10 million is made to modernise the lines and automate workflows
- 2020: The Louis Schweitzer manufacture celebrates its 100th anniversary
- 2022: The ISO 50001 energy certification process is launched and obtained
- 2024: The Louis Schweitzer manufacture components for Alpine A290.
- 2026: The Le Mans site becomes "the Louis Schweitzer manufacture."
Contact us
Renault Group manufacture Louis Schweitzer (Le Mans),
15 avenue Pierre Piffault, 72 086 Le Mans, France
+ 33 (0)1 76 86 43 43