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When a standard cylindrical spring simply won't fit your assembly, engineers and DIYers alike turn to conical compression springs. Their tapered geometry lets them collapse nearly flat under full load, making them the go-to pressure spring for compact mechanisms, valve seats, switch contacts, and vibration-damping applications where axial space is at a premium.
Each conical cone compression spring in this range is wound from spring steel wire with diameters from 0.4 mm to 2 mm (approximately 0.016″ to 0.079″). Free lengths span 7 mm to 76 mm (roughly 0.28″ to 3.0″), with outer diameters typically ranging from 4.5 mm to 39 mm (0.18″ to 1.54″) depending on the selected variant. The tapered coil profile reduces coil clash and allows a lower solid height than an equivalent cylindrical spring.
These conical pressure springs are widely used in consumer electronics button mechanisms, automotive sensor assemblies, small appliance controls, precision instrument latches, and hobby robotics — anywhere a reliable, low-profile return force is needed in a conical compression spring format.
| Product Type | Conical Cone Compression Spring (Pressure Spring) |
|---|---|
| Wire Diameter Range | 0.4 mm – 2 mm (approx. 0.016″ – 0.079″) |
| Free Length Range | 7 mm – 76 mm (approx. 0.28″ – 3.0″) |
| Outer Diameter Range | See variant options |
| Inner Diameter (Small End) | See variant options |
| Number of Coils | See variant options |
| Material | Spring Steel |
| Surface Finish | See variant options |
| Spring Rate | See variant options |
| Solid Height | See variant options |
| End Type | Closed ends (typical for conical compression springs) |
| Quantity per Order | 1 piece |
Start with three measurements: the bore diameter your spring must fit inside (determines maximum outer diameter), the shaft or pin diameter it sits over (determines minimum inner diameter at the small end), and the available axial travel (determines free length and solid height). Then match wire diameter to your required load — thicker wire produces a stiffer spring. Use the variant size code (e.g., 0.8x10/16x20-7) which encodes wire diameter × free length / outer diameter × inner diameter – coil count.
The variant naming convention follows the format: Wire Dia × Free Length / Outer Dia × Inner Dia – Coil Count. For example, "1x10/20x42-9" means: 1 mm wire diameter, 10 mm free length, 20 mm large outer diameter, 42 mm… wait — please refer to the product images or contact us to confirm the exact dimensional breakdown for your chosen variant, as the slash-separated values may represent different dimensional pairs depending on the size group.
These conical compression springs are wound from hardened spring steel and are suitable for light-to-medium duty mechanical applications including switches, valves, instruments, and consumer electronics. For heavy industrial loads (e.g., automotive suspension or heavy press tooling), please verify the spring rate and maximum load against your engineering requirements before ordering.
The springs are made from spring steel with a surface treatment that provides moderate corrosion resistance suitable for typical indoor environments. They are not recommended for continuous immersion in water, exposure to strong acids or alkalis, or outdoor weathering without additional protective coating. For corrosive environments, consider stainless steel springs instead.
In many cases, yes — provided the outer diameter, free length, and spring rate are compatible with your assembly. The key advantage of a conical spring over a cylindrical one is its lower solid height, which is beneficial when axial space is limited. However, the variable coil diameter means the spring rate is not linear throughout the stroke, so verify this characteristic suits your application.
Each order is for 1 individual spring. If you need multiple pieces, simply increase the quantity in your cart before checkout. This allows you to order exactly what you need for prototyping, repair, or small production runs.
We recommend carefully verifying all dimensions — wire diameter, free length, outer diameter, and coil count — against your application requirements before ordering, as springs are precision components and size mismatches are common. Please contact us through the store's support channel if you have questions about fit before placing your order.
