Compression Spring Wire Dia 2mm Stainless Steel Pressure Coil Springs OD 10-30mm

Measure the bore or spring pocket your spring must fit inside — the spring OD should be slightly smaller than the bore diameter. For free length, measure the uncompressed space available and add the required travel (deflection). Select the variant whose OD and free length best match those measurements. If you are replacing an existing spring, measure the original spring's OD, wire diameter, and free length directly.

Spring rate depends on wire diameter, OD, free length, and number of active coils. With a fixed 2mm wire diameter, a smaller OD and shorter free length will generally produce a stiffer spring, while a larger OD and longer free length will be softer. Exact spring rate values vary by variant — contact us to confirm if your application has a specific load requirement.

Yes. Stainless steel provides good resistance to oxidation and mild corrosive conditions such as humidity, light moisture, and many non-aggressive chemicals. For highly corrosive environments (e.g., salt spray, strong acids or alkalis), additional protective measures or a different alloy grade may be needed. Contact us if you have specific environmental requirements.

The Packing QTY option lets you choose how many springs you receive per order line. Selecting "1 PCS" ships one spring; "2 PCS" ships two springs of the same OD and length. Pricing reflects the quantity. If you need larger quantities, contact us for bulk pricing.

Yes. The stainless steel construction and consistent dimensional tolerances make these springs suitable for CNC fixtures, robotic end-effectors, linear actuators, and similar precision mechanical assemblies. Select the OD and free length that match your design's spring pocket and required deflection range.

Check three dimensions: (1) OD — must clear the bore or housing; (2) inner diameter (ID ≈ OD − 2 × wire diameter, so ID ≈ OD − 4mm for this series) — must clear the guide rod if one is used; (3) free length — must fit the uncompressed cavity. If you are unsure, order a single piece first to confirm fit before purchasing in quantity.

The longest available free length in this product family is 305mm (approximately 12.0 inches), available in select OD sizes. Check the Length variant dropdown after selecting your preferred OD to see all available lengths for that diameter combination.