Function and properties of metal coil springs
A metal coil spring is a spring consisting of a wound wire, typically manufactured from hardened spring steel or stainless steel. The characteristic coil shape allows the spring to store energy and release it in a controlled manner when subjected to load. Depending on the direction of force and application, three main types can be distinguished:
- Compression springs, which deliver force when compressed;
- Extension springs, which absorb tension when stretched;
- Torsion springs, which absorb rotational or torque loads.
The coil geometry, wire diameter, and material selection together determine the spring rate, load capacity, and service life. Through precise calculation and manufacturing, each coil spring can be accurately tailored to the required load, stroke length, and available installation space.
Practical applications of metal coil springs
Metal coil springs are used in industries where strength, precision, and durability are essential. Their compact design and high load capacity ensure reliable performance, even under demanding conditions.
- Mechanical engineering: In mechanical engineering, coil springs provide controlled movement, damping, and preload in components such as couplings, valves, and locking mechanisms. They ensure consistent performance under high cycle loads and limited installation space.
- Defence & Aerospace: In these highly demanding sectors, metal coil springs are used in locking and damping systems that must withstand high loads, vibrations, and temperature fluctuations. Special alloys such as Inconel and Elgiloy provide enhanced reliability under extreme conditions.
- Medical: For medical equipment, coil springs deliver precise and repeatable forces. Typical applications include dosing mechanisms, adjustable instruments, and operating tables. Stainless steel versions ensure sterility and corrosion resistance.
- Offshore & Maritime: In humid and saline environments, stainless steel and nickel-based alloys offer excellent corrosion resistance. Coil springs are used in valves, shut-off systems, and safety structures that must perform reliably under pressure over long periods.
Advantages of using metal coil springs
When high load capacity, durability, and precision are required, metal coil springs offer a reliable solution. Their excellent mechanical properties ensure consistent performance over millions of load cycles while maintaining long-term resilience. The compact design makes them ideal for applications where force and space efficiency must go hand in hand. As a result, metal coil springs are a durable and low-maintenance choice for a wide range of technical systems.
Why choose De Spiraal?
Short lead times: thanks to our in-house toolmaking facility and CNC production, we deliver quickly, even for custom solutions.
Custom materials and designs: choice of spring steel, stainless steel, or special alloys tailored to your technical requirements.
Consistent quality: production according to DIN standards with tight tolerances and controlled spring characteristics.
Wide range of applications: suitable for high frequencies, dynamic loads, and limited installation space.
Small and large series: from prototypes to series production with reproducible quality.
Order your metal coil spring from De Spiraal
Are you looking for a durable metal coil spring that perfectly matches your technical design and load requirements? De Spiraal designs and manufactures spring solutions that meet your exact specifications. Whether you need a prototype, a custom production series, or a replacement part, we support you with design, material selection, and performance optimisation. Thanks to our in-house production and efficient processes, we guarantee consistent quality and fast delivery.
Contact us directly at +31 (0)74 – 291 45 08
Or visit our contact page for a no-obligation quotation.
