Spring contacts are applicable to:
★Centering / concentricity
★Holding / control
★Conducting
★Latching / locking device
★EMI / RFI shielding
★Tolerance compensation
★Grounding
★Sealing
Wire diameter: 0.10mm - 1.5mm
Material: Copper alloy, stainless steel, special alloy, etc.
Surface treatment: Gold plating, silver plating, nickel plating, tin plating; Plating Au/Ag/Ni/Sn
The EMI Shielding canted coil spring is a precision spring element designed to ensure continuous electrical grounding and electromagnetic interference shielding between conductive surfaces. Unlike traditional fingerstock or flat shielding gaskets, the canted coil spring provides controlled contact force, consistent conductivity, and superior adaptability to dimensional variations.
At YFS Technology (SZ) Co., Ltd, EMI shielding canted coil springs are engineered as part of complete electromagnetic compatibility (EMC) connection solutions, supporting modern electronic systems that demand reliable grounding performance under vibration, thermal expansion, and repeated assembly cycles.
By maintaining uniform contact pressure along the mating interface, the spring helps create a stable conductive path, reducing EMI leakage and improving overall system shielding effectiveness. This makes it a preferred choice for high-frequency, high-reliability electronic enclosures and modules.
The angled coil structure ensures multiple contact points, maintaining uninterrupted electrical continuity along the shielding interface.
Delivers consistent force distribution, avoiding localized stress that may degrade shielding performance over time.
Adapts to surface irregularities, misalignment, and enclosure deformation without losing grounding effectiveness.
Maintains stable shielding pressure after repeated compression and release cycles.
Available with copper alloy or stainless steel base materials and optional conductive surface treatments such as silver or nickel.
Compared with conventional shielding springs, the canted coil design improves contact stability, enhancing EMI attenuation across a wide frequency range.
Ensures low-impedance grounding between metal housings, panels, and modules.
The rolling contact behavior of the angled coils minimizes abrasion during assembly and disassembly.
Maintains shielding effectiveness even after extended service life and repeated mechanical cycling.
Can be integrated into grooves, channels, or custom housings without complex mounting structures.
Used in metal housings and cabinets to maintain continuous EMI shielding at seams and joints.
Applied in RF modules, base stations, and network devices requiring stable electromagnetic control.
Supports EMI suppression in mission-critical equipment exposed to vibration and environmental stress.
Ensures electromagnetic compatibility in diagnostic and monitoring devices.
Used in control cabinets and automation equipment to reduce electromagnetic interference.
Q1: How does a canted coil spring improve EMI shielding?
A: It maintains consistent conductive contact between mating surfaces, ensuring a continuous grounding path.
Q2: Is it suitable for high-frequency applications?
A: Yes. Stable multi-point contact helps reduce impedance and improve shielding effectiveness at high frequencies.
Q3: Can it replace traditional fingerstock gaskets?
A: In many designs, it offers improved durability and more consistent contact force compared to fingerstock solutions.
Q4: Does it tolerate vibration and thermal expansion?
A: Yes. The elastic design adapts to movement and dimensional changes without losing contact.
Q5: Can the spring be customized for specific enclosure designs?
A: Yes. Dimensions, coil angle, and surface finish can be tailored to specific EMI requirements.
Address：Shenzhen City, China
Mobile Phone：+86 17656553585
Email：davykou0@gmail.com
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