A barrel or ball shaped compression spring with a bright polished finish, made for decorative artware, craft products and display pieces. The bulged profile is chosen for how it looks as much as for its resistance to buckling.
The wider centre and narrower ends make the spring more stable under load than a straight cylinder of the same height.
A polished or bright plated surface suits products where the spring is part of the design rather than hidden inside it.
The part still behaves as a proper compression spring, so it can carry a real load in a display or craft assembly.
Handle polished springs with clean gloves and pack them so they do not rub together. On a decorative part, surface marking is the defect that gets noticed.
Straight cylindrical springs buckling and spoiling the look of a display assembly
Dull plated springs that look like industrial hardware in a decorative product
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 | Compression 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 cylindrical spring of similar height, the barrel form is more stable without a guide and looks intentional rather than functional, which is the point in a decorative product.
The narrower ends and wider centre shift the buckling behaviour, letting the spring stay upright at length to diameter ratios where a cylinder would fold over.
Bright nickel, chrome and silver plating are the usual choices. Colour coatings are available where the piece calls for it.
Yes. The coil diameter profile along the body is set on the machine, so the silhouette can be adjusted.
Send your drawing, dimensions or a sample. We will confirm the specification and come back with a price and a lead time.