Torsion Springs | RDO Springs french spring specialist

TORSION SPRING

DEFINITION :

Like compression springs, the main function of torsion springs is to release torque when subjected to lateral loads, as in the case of so-called “return springs”.
Frequently they have contiguous turns with many different shapes at the ends in order to adapt to the often complex systems requested by our customers.

MANUFACTURING PROCESS :

Small run (<250 parts), Medium run (<400,000 parts)
Automatic production: wire from 0.4 to 8 mm
RDO Springs produces several billion torsion
springs annually

CALCULATIONS – PLANS – TECHNICAL QUOTATION :

Due to the complexity of the ends adaptable to customer characteristics, this spring is produced to plan.

Numerous useful aspects are required to manufacture it, including wire and inner diameters, winding direction, lateral loads to be taken up/released and different angular working positions.

Once the plan is completed and transmitted, our Design Office will
check the dimensions and call you back if necessary.

Tests are then conducted to verify that the requested characteristics can be validated on initial samples.

EQUIPMENT :

RDO Springs has :

Dozens of very modern manufacturing machines to produce these springs.
Several recent software programs to calculate dimensions and static and dynamic loads on springs
All the necessary control instruments to check the required dimensions (shadowgraph, measurements taken via imaging, 2D LED, 3D LED, etc.)

FINAL TREATMENT OF THE MANUFACTURED SPRING :

Several million combinations are possible depending on the mechanical characteristics required on the dimensions or the resistances.

To ensure that a spring meets your requirements over time, heat treatments (ovens) are performed. Chemical treatments can also be performed (tribofinishing or passivation) in order to guarantee these characteristics over time.

RDO Springs has two modern production lines for these operations.

Subcontracting operations (painting, cataphoresis and chemical treatments) can be performed by a subcontractor located near our manufacturing facility.

MATERIALS PROCESSED :

Mild stainless steel 1.4301 – Implantable stainless steel 1.4441
Inconel 600, 625, 718, 750 • Monel, Nimonic, Uranus, Titanium, etc.
Phosphor bronze, beryllium, copper, brass

SM, SH, DH, etc. spring steel
Square cross section, rectangular cross section
Stainless steel 1.4310, 1.4310 HS, 1.4401, 1.4568, 1.4462

OUR RECOMMENDATIONS :

The manufacture of torsion springs is based on several international standards that define tolerances and the standard manufacturing process.

RDO Springs is certified ISO 9001 (Quality) and EN 9100 (Quality ++: Aerospace and Defense sectors) proving its considerable expertise in this field.

There are no so-called “standard” springs. Each spring is specific and requires an appropriate approach so we can meet your requirements

ISO 9001
EN 9100

Our certifications

RDO Springs
10 RUE BENJAMIN DELESSERT
60510 BRESLES

contact@rdosprings.com
www.rdosprings.com

Torsion Springs | RDO Springs french spring specialist

TORSION SPRING

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