Compression Springs are used primarily for storing and returning mechanical energy. This page lists the industries and assemblies where they are specified, the selection criteria that matter for each application, installation practice, and the cases where a different fastener type is the correct choice. Parts are supplied to ISO / DIN. Stocked across roughly 0.6 mm to 5 mm, they cover light-duty and instrument-scale work.
Typical Applications for Compression Spring — ISO / DIN (Series 145)
The most common settings where these are specified:
- Valves & actuators: controlled closing or opening force.
- Vibration & cushioning: absorbing shock and maintaining contact pressure.
- General machine building: fastening covers, brackets, motors and sub-assemblies on production equipment.
- Maintenance & repair (MRO): a stocked size for servicing existing plant where the original fastener spec must be matched.
- Fabrication & metalwork: bench and on-site assembly of steel frames, enclosures and weldments.
How to Specify Compression Spring — ISO / DIN (Series 145) for Your Application
- Size: Select on wire diameter, and confirm it against the mating feature in the assembly. This product spans 0.6 mm–5 mm; check the full table below for the exact dimensions of each size.
- Material: Choose the material and finish for the service environment — plated steel for general use, stainless for corrosion resistance.
- Environment: For damp, coastal or chemical exposure prefer A4/316 stainless or a suitable coating; indoors, plated steel or A2 is usually sufficient.
- Standard: This product is supplied to ISO / DIN. Quoting the standard on your order guarantees interchangeable dimensions between suppliers.
Where Compression Spring — ISO / DIN (Series 145) Are Not the Right Choice
Not where a precise, repeatable force is needed without rating the spring, and avoid over-stressing beyond the rated deflection.
