Tapered Spring
Tapered Spring
A compression spring with a varying outer diameter — wider at one end, narrower at the other. Compresses to less than the wire diameter at full collapse.
A tapered (or conical) spring solves a common problem: when fully compressed, a standard cylindrical spring is at least as tall as its solid height. A tapered spring can collapse flat — coil-on-coil — saving stack height and reducing buckling.
Used wherever low solid height matters: battery contact springs, retractable mechanisms, low-profile assemblies.
Specifications
| Wire diameter | 0.1mm – 6mm |
| OD range | 5:1 ratio max (large end : small end) |
| Free length | up to 200mm |
| Solid height | as low as wire diameter |
| Materials | Stainless spring steel, high-carbon spring steel |
| Lead time | Production runs 1–3 weeks · walk-in single-piece custom often within an hour |
| MOQ | None — single piece available |
Common applications
- Battery contact springs in electronics
- Retractable pen mechanisms
- Low-stack-height suspension components
- Buckle and clip assemblies
Materials & finishes
Materials & finishes
Stainless spring steel and high-carbon spring steel for most spring types. Chrome silicon and chrome vanadium for die-spring grades. Polyurethane elastomer for urethane springs. Finishes available: zinc plating, black oxide, phosphate, passivated stainless.
Dimensions & tolerances
Dimensions & tolerances
Wire diameter range: 0.1mm – 10mm. Tolerance: ±0.05mm wire, ±1% free length, ±10% load. Squareness: 3° or less. Custom geometries to drawing — send a sample or a sketch.
Lead time & ordering
Lead time & ordering
Walk-in single-piece custom: often within an hour at our Valenzuela factory for standard geometries. Stock items: 2–5 days. Production runs: 1–3 weeks. No minimum order — single piece available.
QC & documentation
QC & documentation
Every batch is sample-tested before pack-out. Mill certificates, dimensional reports, and full material traceability available on request — at no extra charge for production runs above 500 pieces.

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Have a sample?
Get directionsBring it to our factory in Valenzuela. Walk-ins welcome Mon–Sat 08:30–16:00 — we'll quote on the spot for standard work.
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2–5 days standard
Most stock springs ship in 2–5 days. Custom runs in 1–3 weeks. Same-day pickup at our Valenzuela factory available.
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Material certs included
Mill certificates, dimensional reports, and material traceability documentation provided at no charge for production runs above 500 pieces.