A coiled flat spring in stainless steel with a copper plated finish, used where the spring is visible and a warm metallic appearance is wanted, or where copper's surface properties suit the contact. The coil form stores a long strip in a small space.
The coiled strip holds a long working length in a compact diameter, which is how these springs deliver long travel.
Chosen where the spring is visible in a product or where copper's surface behaviour suits the mating part.
The mechanical behaviour comes from the stainless strip; the copper is a surface layer.
Handle with gloves during assembly. Copper surfaces mark readily from fingerprints and the marks show clearly on a visible part.
Bright stainless springs looking clinical in a product with warm metal hardware
Long travel mechanisms with no room for an extended spring
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 | Flat 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 a plain stainless coil spring, the copper version is a visual choice. Mechanically the two are equivalent.
Not meaningfully. The plating is thin relative to the strip and the stainless does the work.
Copper darkens over time in air unless lacquered. Tell us if a stable appearance is required.
Tell us the travel you need and we will confirm what fits the space available.
Send your drawing, dimensions or a sample. We will confirm the specification and come back with a price and a lead time.
