Stainless extension springs for rocking and glider chair mechanisms. Stainless is specified here because rocking chairs are often used on porches and in conservatories, where a plated carbon steel spring will stain the timber it is mounted in.
No plating to wear through, and no rust streaks running down a painted or timber frame.
The rocking feel comes from the spring rate. Coil count and wire size are set for a gentle rise rather than an abrupt stop.
Both sides of a chair mechanism come from the same run, so the chair rocks evenly rather than pulling to one side.
Replace both springs together even if only one has failed. A new spring paired with a tired one makes the chair rock unevenly and stresses the new part.
Rust stains from chair springs marking timber and painted frames
Chairs that rock unevenly because the two springs differ in force
Dimensional and load figures are set per order against your drawing or sample, so they are marked TBC rather than filled with catalogue numbers.
| Product Type | Tension Springs |
|---|---|
| Raw Material Options | Stainless steel, Spring steel, Carbon steel, 65Mn, Music wire |
| Wire Diameter Range | 0.1-8 mm |
| Surface Treatment Options | Zinc plating, Nickel plating, Silver plating, Gold plating, Tin plating, Galvanizing in various colours, Dacromet, Black oxide, Phosphating |
| Standard | ISO, non-standard and OEM drawings |
| Processing Route | Material sourcing → Coiling and forming → Heat treatment → Surface treatment → Quality inspection → Packing → Shipping |
| Inspection Equipment | Grinding and shot peening machinery; Precision tensile strength testers; Magnetic powder flaw detectors |
| Packing | Plastic bags, cartons or pallets, or packing to your own specification |
| Payment Terms | L/C, T/T, D/A, D/P, Western Union, 30% deposit before production, 70% balance before shipment |
| Lead Time | 7-15 days after the order is confirmed |
| Minimum Order Quantity | Quoted per part — tell us your requirement (TBC) |
| Dimensions and Load Rating | Made to your drawing or sample (TBC per part) |
Every batch follows the same seven step route, with tensile testing and magnetic powder flaw detection carried out before packing.
Available in Stainless steel, Spring steel, Carbon steel, 65Mn, Music wire, in wire from 0.1-8 mm, with any of our nine surface finishing routes. Geometry, end treatment and finish are all specified per order.
ISO 9001, SGS certificate and RoHS report (stated on the legacy site, certificates pending re-confirmation). Certificate copies are sent on request once re-confirmed.
Against zinc plated chair springs, stainless costs more and avoids the staining that eventually spoils the furniture it is fitted to. For indoor dry use, plated steel remains reasonable.
Because the spring sits against timber or paint. A plated spring that starts to rust will mark the frame long before it fails.
Yes. Send one of the originals and we will reproduce it, in stainless if you prefer.
Slightly, since stainless behaves differently from carbon steel at the same geometry. We adjust the design so the feel matches.
Send your drawing, dimensions or a sample. We will confirm the specification and come back with a price and a lead time.