Gym equipment spring
Extension springs for weight machines, expanders and fitness equipment. Design the exact resistance and quote instantly.
Recommended type and material
Gym equipment needs high-fatigue chrome-silicon extension springs that withstand thousands of effort cycles without losing tension. Force is sized to the target resistance.
Reference specification
| Type | Extension |
|---|---|
| Material | Chrome silicon |
| Wire diameter | 4 mm |
| Outer diameter | 30 mm |
| Length | 200 mm |
| Spring rate | 7.03 N/mm |
| Max safe load | 477 N |
| Spring index | 6.5 |
Values calculated for the reference example; adjust everything in the designer.
Things to consider
- Chrome silicon for high fatigue life under heavy use.
- Pull force calibrated to the resistance level.
- Reinforced hooks for the anchor points.
Design your spring for this application
Open the example in the designer, adjust the dimensions and get an instant quote.
Design & quoteFrequently asked questions
Will the spring survive heavy gym use?
Yes — chrome silicon suits fatigue over thousands of cycles per day.
Can I get different resistance levels?
Yes — adjust wire diameter and coils to vary the pull force.