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When a worn-out or undersized spring causes equipment downtime, misaligned mechanisms, or failed assemblies, finding the right replacement fast is critical. These 2.2mm wire diameter compression springs are designed for engineers, maintenance technicians, and serious DIYers who need a dependable, dimensionally consistent coil spring without the lead time of custom orders.
Each spring is formed from springsteel (spring steel) wire with a wire diameter of 2.2mm (approximately 0.087 in). Outer diameters span 14mm to 35mm (approximately 0.55 in to 1.38 in), and free lengths range from 20mm to 305mm (approximately 0.79 in to 12.0 in). Ends are closed and ground for stable seating. Available in packs of 2, 5, or as a single 305mm long spring.
Typical use cases include compression spring replacement in industrial machinery, automotive suspension sub-assemblies, pneumatic valve return mechanisms, jig and fixture clamping systems, and hobbyist robotics or maker projects requiring precise spring force. Long-tail search terms: springsteel compression coil spring 2.2mm wire, pressure coil spring all lengths, replacement compression spring metric.
Consistent 2.2mm (0.087 in) wire cross-section across all variants for predictable spring rate and load capacity.
Outer diameters from 14mm to 35mm and free lengths from 20mm to 305mm cover a broad range of replacement and design needs.
Made from spring steel wire offering good tensile strength, fatigue resistance, and elastic recovery under repeated compression cycles.
Closed and ground end configuration provides a flat, stable seating surface for accurate load transfer and reduced lateral deflection.
Available in packs of 2 pcs, 5 pcs, or as a single 305mm long spring — order exactly what your project requires.
Suited for industrial machinery, automotive sub-assemblies, pneumatic valves, clamping fixtures, and maker/robotics projects.
| Wire Diameter | 2.2 mm (0.087 in) |
|---|---|
| Outer Diameter Range | 14 mm – 35 mm (0.55 in – 1.38 in) |
| Free Length Range | 20 mm – 305 mm (0.79 in – 12.0 in) |
| Material | Spring Steel (Springsteel) |
| End Type | Closed and Ground |
| Spring Type | Compression Coil Spring |
| Finish / Coating | See variant options |
| Spring Rate | See variant options |
| Pack Quantity | 2 pcs / 5 pcs / 1 pc (305mm length) |
| Inner Diameter | See variant options |
Measure the bore or housing that the spring sits inside, then select an outer diameter (OD) that is slightly smaller than the bore to allow free movement without binding. For a shaft-guided spring, measure the shaft and choose an inner diameter (ID = OD minus twice the wire diameter) that clears the shaft with a small gap. Our OD range of 14mm–35mm covers most standard metric applications.
The free length is the uncompressed length of the spring. Select a free length that, when compressed to your working height, delivers the required load. As a starting point, choose a free length roughly 20–30% longer than your compressed working height to ensure the spring operates within its elastic range. The 305mm option is ideal when you need to cut a spring to a custom length.
Load capacity depends on the combination of wire diameter, outer diameter, free length, and number of active coils. With a fixed 2.2mm wire diameter, shorter springs with smaller outer diameters will generally have a higher spring rate (stiffer), while longer springs with larger outer diameters will be softer. If you need a specific spring rate or load value, contact us to confirm before ordering.
These springs are made from spring steel, which offers good mechanical properties but has moderate corrosion resistance. For outdoor, wet, or chemically aggressive environments, consider applying a protective coating (e.g., light oil, zinc spray) after installation, or contact us to ask about stainless steel alternatives if your application demands higher corrosion resistance.
Yes — the springs use standard metric dimensions (outer diameter and free length in millimeters) and are compatible with metric spring seats, bores, and shafts. Always verify the OD, ID, and free length against your housing drawings or the original spring specifications before ordering to ensure a correct fit.
Yes. The 305mm (approximately 12 inch) long spring is well suited for use as stock material that can be cut to a custom free length using a spring cutter or angle grinder. After cutting, dress the cut end to ensure it seats flat. This is a practical option when you need a non-standard free length not available in the standard pack sizes.
The pack quantity (2 pcs or 5 pcs) refers to the number of identical springs included in one order. The springs themselves are identical in dimensions and material — only the quantity differs. Choose 2 pcs for single-unit repairs or prototyping, and 5 pcs for batch builds, production runs, or to keep spares on hand.
