Gate extension spring
Return extension springs for sliding and tilting gates. Design the hook-to-hook length and quote instantly.
Recommended type and material
Gates use stainless 302 extension springs due to weather exposure. Initial tension keeps the coils closed and ensures a firm return to position.
Reference specification
| Type | Extension |
|---|---|
| Material | Stainless 302 |
| Wire diameter | 2.5 mm |
| Outer diameter | 22 mm |
| Length | 120 mm |
| Spring rate | 3.79 N/mm |
| Max safe load | 129 N |
| Spring index | 7.8 |
Values calculated for the reference example; adjust everything in the designer.
Things to consider
- Stainless 302 resists rain and sun on external gates.
- Initial tension calibrated for consistent return.
- Hooks defined to match the anchor point.
Design your spring for this application
Open the example in the designer, adjust the dimensions and get an instant quote.
Design & quoteFrequently asked questions
Does it suit an automatic gate?
Yes — the return spring is sized for the gate's weight and travel.
Which hook type should I choose?
It depends on the mounting; the designer offers machine, crossover and swivel hooks.