What are canted coil springs?

Figure 2: Examples of Canted Coil Spring Force Curves

What is a canted coil spring?

Unlike conventional helical springs with circular cross-sections, canted coil springs all have oval cross-sections with different heights and widths (Figure 1 on the right). Varying the wire diameter (WD), width, height, or coil spacing changes the spring force. By design, we can target a specific canted coil spring holding/latching, or electrically conducting/EMI shielding application. A spring ring can be installed in a fitted piston or housing groove to transmit electricity, energize plastic seals, control connecting force, provide bearing, or limit RF interference. An axial spring can control the binding force between two surfaces. We sell spring rings or cut lengths springs.

Compressing the coil height of a canted coil spring generates a force curve with a flat region (Figure 2). This force plateau is used to compensate for surface unevenness and dimensional variations in changing weather, stabilize contact resistance in electrical plugs, and control engaging & disengaging force in mechanical connectors. Canted coil springs are widely used in automotive, aeronautical and aerospace, green energy generation & storage, healthcare, Laser and lighting apparatus, lighting, military, power transmission & distribution, oil & gas,  and transportation industries. 

If you are still using conventional ways for round part holding or quick disconnecting applications, there is a good chance you can benefit from the convenience and cost-saving features of canted coil springs. They reduce materials and space, limit assembly time and system cost, and provide reliable connections as the enablers of mechanical and electrical connectors.

Please go to our products page for more details on iConnFlex™ canted coil springs.  

iConn Engineering, LLC was established in 2011 in California, USA, and has been serving worldwide customers since. iConn is ISO-9001 and ISO-14001 certified. Our specialty is to design each iConnFlex™ canted coil spring meticulously with finite element models and manufacture precisely with CNC machines in our Taipei, Taiwan facility. 

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iConn Engineering uses only DFARS compliant materials for all canted coil springs.

Canted coil spring


iConn Engineering is an ISO-certified canted coil spring manufacturer.

iConn supplies canted coil springs worldwide

Viedo 1:  One canted coil spring can serve as both the mechanical force controller and the electrical conductor. It also provides tactile and audio feedback. Please click the above video.

How is a canted coil spring used in an application?

ISO 9001 and ISO 14001 certified

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iConn Engineering's canted coil springs are ITAR compliant.
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What does a canted coil spring look like?

Reg. #:  11Q22180               Reg. #:  37E22180

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