- Tension Springs
- Compression Springs
- Disc Spring
- DIN2093 Disc Spring
- Wire Forms
- Drawbar Spring
- Wave Washer
- Barrel Springs
- Thread Insert
- Spiral Springs
- Torsion Springs
- Die Springs
- Volute Springs
- Belleville Washers
- Taper Spring
- Helical Spring
- Coil Spring
- Heavy Duty Spring
- Solid Thread Insert
- Thread Repair Kit
- Slotted Disc Spring
- DIN6796 Belleville Washer
Tension Springs – The Pulling Force Resistor
About the Product
Tension springs (or extension springs) are helical springs designed to absorb and store energy by resisting a pulling force. They are typically close-coiled and feature hooks or loops at the ends for secure attachment, releasing their stored energy as they extend under load.
- Close-coiled, helical design
- Variety of end hooks (English, German, cross)
- Uniform tension/pitch along the body
- Pre-tension for tight coil spacing
Tension springs are essential for providing restorative force. They are widely used in **trampolines, garage doors, washing machines, and lever mechanisms**. Their close-coil structure and custom ends ensure a secure attachment and reliable, consistent pulling force.
Technical Specifications
Characteristics: Linear force response, customizable hook direction and coil tightness (pre-tension), rust-proof with surface treatment options, supports high cycle usage.
Measurements: Wire Diameter: 0.2{mm} – 25{mm}, Outer Diameter: 2{mm} – 150{mm}, Free Length: Custom Hook-to-Hook Length, Number of Coils: Variable as per tension requirement.
Configurations: Full loops, extended hooks, reduced hooks, swiveling ends, various hook shapes (cross-center, side-center).
Rate or Stiffness: Moderate stiffness (20–150{ N/mm}).
Service Life: Up to 500,000 dynamic cycles depending on load type and environment.
Tolerances: pm 0.1{mm} OD, pm 10 in load, adhering to IS and DIN standards.
Applications: Trampolines, return mechanisms, garage doors, automotive interiors, levers, and pull-actuated devices.
Ready to discuss your custom spring requirements? Contact us now