Canted coil springs are widely used in aerospace, medical, and semiconductor equipment due to their stable preload, high cycle life, and compact design. This article explains common applications, performance advantages, material options, and provides a detailed comparison with traditional springs.
As modern industries continue to push the limits of precision, reliability, and miniaturization, traditional spring solutions are often no longer sufficient. This is especially true in aerospace, medical devices, and semiconductor equipment, where failure is not an option and tolerances are extremely tight.
Kantige Schraubenfedern—also known as slanted coil springs or constant force springs—have become a preferred solution in these high-performance sectors. Unlike conventional compression or extension springs, canted coil springs provide stable preload force, excellent fatigue resistance, and superior performance in limited spaces.
This article explores the most common applications of canted coil springs across three critical industries, explaining why they are chosen, how they perform, and what design engineers should consider.
A Schrägzugfeder is formed by a series of coils angled relative to the spring axis. This geometry allows the spring to deflect smoothly while maintaining nearly constant force over a wide working range.
These features make canted coil springs particularly suitable for critical assemblies and high-reliability systems.
Before diving into industry-specific applications, it’s important to understand why canted coil springs outperform traditional spring types in demanding environments.
| Performance Factor | Kantige Spiralfedern | Compression Springs |
|---|---|---|
| Preload at Zero Deflection | Yes | No |
| Force Stability | Excellent | Moderate |
| Ermüdung Leben | Very High | Medium–High |
| Vibration Resistance | Excellent | Limited |
| Weltraum-Effizienz | High | Moderate |
| Precision Control | Excellent | Limited |
The aerospace industry demands absolute reliability under extreme conditions, including temperature variation, vibration, pressure changes, and long service life.
Canted coil springs are widely used in aerospace-grade electrical connectors to maintain consistent contact force.
Why they are used:
Typical components:
Canted coil springs function as retaining elements in aerospace assemblies, often replacing traditional retaining rings.
Vorteile:
Electromagnetic interference is a major concern in aircraft and spacecraft systems.
Canted coil springs used in EMI shielding:
Medical equipment requires precision, cleanliness, repeatability, and biocompatibility. Canted coil springs meet these requirements exceptionally well.
In devices such as implantable sensors and diagnostic tools, space is extremely limited.
Vorteile:
Canted coil springs are used in:
Why medical designers prefer them:
In patient monitoring and imaging systems, reliable electrical contact is essential.
Key advantages:
Semiconductor manufacturing demands extreme precision, cleanliness, and process stability. Even microscopic inconsistencies can lead to yield loss.
Canted coil springs are used to apply controlled force during wafer positioning.
Why they are critical:
Semiconductor tools often operate in vacuum or controlled atmospheres.
Canted coil spring advantages:
High-frequency processes require robust EMI shielding.
Canted coil springs provide:
Material selection is critical for performance and compliance.
| Material Type | Key Properties | Typical Industry Use |
|---|---|---|
| Stainless Steel 316 | Corrosion resistant, biocompatible | Medical, Aerospace |
| Stainless Steel 302/304 | High strength, good fatigue life | General Industrial |
| Beryllium-Kupfer | Excellent conductivity | EMI-Abschirmung |
| Nickel-Basis-Legierungen | High-temperature resistance | Halbleiter |
Force (N)
│
│ ──────────────── Canted Coil Spring
│ /
│ /
│ / Compression Spring
│ /
│___/________________________ Deflection
Key takeaway:
Canted coil springs provide a more stable force over deflection, which is essential for precision equipment.
Our precision-engineered canted coil springs are designed to deliver consistent preload force, exceptional fatigue life, and reliable performance in the most demanding environments. Manufactured from high-quality stainless steel and specialty alloys, these springs are ideal for aerospace connectors, medical devices, and semiconductor manufacturing equipment.
The unique angled coil design ensures stable force output with minimal deflection, making them perfect for applications requiring precise retention, electrical contact, or EMI shielding. Compared to traditional compression springs, canted coil springs offer superior vibration resistance, longer service life, and improved performance in compact assemblies.
Available in custom diameters, wire sizes, and material options, our canted coil springs can be tailored to meet strict industry standards and application-specific requirements.
Across aerospace, medical, and semiconductor industries, canted coil springs have become a trusted solution for engineers who demand precision, durability, and reliability. Their ability to provide consistent preload, withstand harsh environments, and perform over millions of cycles makes them an essential component in advanced equipment design.
For applications where performance cannot be compromised, canted coil springs offer a clear advantage over conventional spring technologies.