Canted coil springs offer unique advantages over other types of springs, making them particularly suited for a wide range of applications.
Unique Design: Traditional springs have all coils perpendicular to their longitudinal axis, whereas canted coil springs have the individual coils parallel to each other and at an angle to the longitudinal axis. This design allows canted coil springs to serve a wide range of uses that traditional springs cannot.
Flat Load Curve: Due to the cant of the coils, canted coil springs have a flat load curve when compressed, which is rather unusual for a spring. This means that the load generated as these springs are compressed is predictable through their wide deflection range, making them ideal for applications where a consistent force is required.
Versatility: Canted coil springs can be used in many different ways, including as mechanical connectors for latching, locking, and holding, as well as for EMI/RF shielding and as multi-point electrical connectors. Their versatility allows them to be used in various industries, such as medical, automotive, oil and gas, and aerospace, where they can achieve solid mechanical and electrical connections while reducing weight and minimizing the complexity of assemblies.
Performance in Sealing Applications: In the context of spring-energized seals, canted coil springs generate a flat load curve that keeps friction at a predictable, constant level. This is crucial for sealing applications where friction and torque are critical to the functionality of a seal. Additionally, canted coil springs do not experience compression set, making them ideal for situations where friction needs to be highly controlled.
Material Options: Canted coil springs are available in a variety of materials, including Hastelloy, Inconel, Elgiloy, and 300 Series Stainless Steel (e.g., 316, 316L, 302). They can also be nickel, silver, or gold plated if needed, offering flexibility in material selection to meet specific performance goals.
EMI/RF Shielding: Canted coil springs can provide effective EMI/RF shielding by adjusting their electrical properties to meet specific impedance requirements. They are particularly effective at shielding from crosstalk and can adapt to even the most uneven and irregular shapes, providing a consistent level of shielding.
Multi-point Electrical Conductors: They can serve as multi-point electrical conductors, offering a cooler operating temperature which can be critical in certain designs, including those where space is highly limited. Their multi-point contact system ensures electrical contact even in extremely harsh conditions, including those where vibration and shock are common.
In summary, canted coil springs stand out for their unique design, which allows for a flat load curve and versatility in application. They are particularly suited for sealing applications, EMI/RF shielding, and as multi-point electrical conductors.They offer a range of benefits over traditional springs.