1.5mm-2.0mm Wire Dia 60-100mm Length Stainless steel Pressure Compression Spring

Wire diameter directly determines the spring rate and maximum load capacity. A thicker wire (e.g., 2.0 mm) produces a stiffer spring with higher load capacity, while a thinner wire (e.g., 1.5 mm) yields a softer spring. Match the wire diameter to your required force range — if you need a light return force, start with 1.5 mm or 1.6 mm; for heavier loads, select 1.8 mm or 2.0 mm.

The outside diameter (OD) must fit inside your housing bore with adequate clearance — typically 0.5 mm to 1 mm of radial clearance on each side. If your bore ID is 12 mm, choose an OD of 10 mm or 11 mm. If the spring slides over a guide rod, the inside diameter (ID = OD minus 2× wire diameter) must clear the rod diameter.

Yes. Stainless steel offers significantly better corrosion resistance than carbon steel or zinc-plated springs. These springs are suitable for humid workshops, outdoor enclosures, and light-exposure environments. For highly aggressive chemical or saltwater immersion applications, verify the specific alloy grade against your media requirements.

Free length is the overall length of the spring when no load is applied. Your housing or assembly must accommodate the full free length when the spring is uncompressed. The working stroke (compression travel) is the difference between the free length and the installed (compressed) length. Ensure your design allows sufficient travel without fully compressing the spring solid (solid height).

Yes — these are well-suited for extruder return mechanisms, spring-loaded probe mounts, gripper fingers, valve actuators, and jig clamps. The consistent spring rate and closed-ground ends make them reliable in repetitive-cycle applications common in desktop robotics and small automation builds.

If you need a single spring for a prototype or repair, select the 1-piece option to avoid unnecessary stock. For builds requiring matched pairs (e.g., bilateral symmetric mechanisms, dual-spring assemblies) or if you want a spare on hand, the 2-piece pack offers better value per unit. Check the "Length & Quantities" variant selector for available pack sizes.

Compression springs resist being compressed — they push back when force is applied along their axis. Extension springs, by contrast, resist being stretched and pull back when elongated. These listings are compression springs; they are designed to sit between two surfaces and provide a return or separation force when compressed.