ZI du Cheix 23300 Saint Agnant de Versillat
contact@ressorts-dury.fr
05 55 89 69 00
Electrical Equipment
Electrical Equipment
Reliable and precise springs for the performance of your electrical equipment
A reference partner for the electrical equipment industry
For more than 60 years, Ressorts Dury has been supporting manufacturers of electrical equipment, switchgear and power components. Our expertise in the design and manufacture of technical springs allows us to meet the reliability and safety requirements specific to this sector.
Our springs equip essential components: circuit breakers, contactors, relays, disconnect switches, power connectors and terminal blocks. Applications where precision and consistency of forces are critical.
Quality standards compliant with the requirements of the electrical sector
The electrical equipment industry demands perfect repeatability and reliability over millions of operating cycles. At Ressorts Dury, we meet these requirements through:
- A guaranteed repeatability thanks to a fleet of 40 CNC machines
- Rigorous controls at every stage: dimensional, load, force consistency, endurance
- With certified processes compliant with industrial standards (ISO 9001) and compatible with IEC requirements
- Complete technical documentation (material certificates, inspection reports, PPAP on request)
Materials and treatments adapted to electrical constraints
We master the processing of a wide range of materials adapted to the conductivity, insulation and temperature resistance requirements of the electrical sector:
- Chrome-silicon alloy steels – high fatigue resistance, ideal for switching mechanisms
- Stainless steels (302, 304, 316) – corrosion resistance for humid or outdoor environments
- Copper alloys (bronze, beryllium-copper) – electrical conductivity and contact properties
- Pre-hardened wires and strips – miniature springs and contact parts for compact switchgear
Each spring benefits from adapted heat and surface treatments (shot peening, passivation, tin plating, silver plating) ensuring optimal service life and consistent electrical properties throughout the entire service life.
Why choose Ressorts Dury for your electrical equipment?
Exceptional responsiveness – the majority of our springs are designed, manufactured and delivered within 48 hours. An integrated engineering department for co-development and optimization of your electrical components. Production capacity for small, medium and large runs. More than 60 years of experience serving the leaders of the electrical equipment industry.