Springs & Wire Forms
Custom Torsion Springs Manufacturer
Custom-made torsion springs tailored to your specific specifications. Discover Filame's deep expertise, production capabilities, sector expertise, materials and finishings.
Torsion springs operate by flexion. They pull towards their axis by concentric rotation.
All coils in these torsion springs are active. Therefore even the fractions of coils must be taken into account in the calculation.
Available in all dimensions and qualities from 0.25 to 8 mm in wire thickness in small, medium or large series.
Engineering Tool Real-Time 3D Preview
Design Your Spring
Use Filame’s interactive calculation tool to size and preview your spring. Compute rates, loads, Wahl stress corrections, and submit verified parameters for rapid quoting.
SPRING CALCULATOR → Instant 3D Mesh & Technical PDF
Materials
Worked Steels
- SM, SH, DH grade spring steel, ...
- Pre-coated galvanised SM grade, galvanised SH grade, Bezinal © SM grade and Bezinal © SH grade steel
- Oteva © silicon-chrome oil-tempered steel
- Stainless steel 1.4310, 1.4310 HS, 1.4401, 1.4568, 1.4462, 17/7 PH
- Low-carbon stainless steel 1.4301
- 1.4441 implant grade stainless steel
- Inconel 600, 625, 718, 750
- Monel, Nimonic, Elgiloy …
Surface Treatment
Finishings
- Oiling
- Zinc plating
- Epoxy coating
- Teflon © coating
- Geomet © coating
- Passivation
- Phosphate treatment
- Colour coding
- Marking
- Ultrasonic cleaning
- Unit packaging in sachets, etc.
Portfolio
Product samples
Sectors
Industries we serve
The Filame Group manufactures precision components for a wide range of industries. Discover the main sectors we serve:
Aerospace
Automotive
Civil Engineering
Construction
Gaskets & Seals
Horeca & Nautical
Lock Industry
Machine Construction
Medical & Pharma
We also serve many other sectors. For more details on all of our industry services, visit our Industries & customers page, or contact us for any custom requests.
Documentation
Technical Documentation
Download the following documents to help you define your specifications and for more details on materials :
Media
Video
FAQ
Questions & Answers
01 What wire thickness range does Filame offer for torsion springs ?
Filame manufactures custom torsion springs with wire thicknesses ranging from 0.25 mm to 8 mm, supporting small, medium, and large production series.
02 What hook and leg configurations are available for torsion springs ?
We can customize torsion spring legs with straight, bent, coiled, or hooked configurations tailored to meet your specific assembly requirements.
03 What materials can be used for custom torsion springs ?
We work with a wide range of spring materials, including spring steel (SM, SH, DH), stainless steel (1.4310, 1.4401, 1.4568), and high-performance alloys like Inconel, Elgiloy, and Monel.
04 Does Filame offer surface treatments for torsion springs ?
Yes, we provide a complete range of finishes including oiling, zinc plating, epoxy coating, Teflon coating, passivation, phosphate treatment, and color coding.
05 How does Filame ensure the quality and compliance of its products ?
Filame is ISO 9001 certified and operates in accordance with IATF 16949 requirements. We utilize advanced automated optical inspection (AOI) systems for 100% dimensional compliance and routinely provide full EN 10204 3.1 material certifications and PPAP Level 3 documentation.
06 Can Filame assist in the engineering, design, and prototyping phase ?
Yes. Our in-house engineering design studio collaborates directly with your R&D teams to co-design progressive dies and optimize part geometries for cost-efficient mass production. We also utilize advanced 3D printing to quickly manufacture prototypes, assembly jigs, and custom verification fixtures.
07 Which industries does Filame primarily manufacture components for ?
We manufacture high-precision components for demanding sectors worldwide, including the Automotive, Aerospace, Medical & Pharmaceutical, Defense, Nuclear, Civil Engineering, Construction, and Locksmith industries.
08 What manufacturing machinery does Filame utilize for production ?
Our state-of-the-art Nivelles facility features high-speed automatic mechanical presses (with multi-step progressive tooling), stand-alone mechanical presses, hydraulic presses, Bihler multi-slide machines, CNC 2D/3D wire formers, laser-cutting/punching machines, and automated welding robots.
09 What are Filame's shipping capabilities and delivery times across Europe ?
Headquartered in Nivelles, Belgium, at the geographic heart of Europe, Filame provides robust logistics with rapid shipping across all major European countries—including Germany, France, the Netherlands, Luxembourg, and beyond—with transit times typically between 24 and 48 hours once production is completed.
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