Stainless Steel Asymmetric Double-Arm Torsion Spring
Applied to precision rotational mechanisms requiring asymmetric torque arm force, the dual differently-shaped arms flexibly accommodate varied anchor points for precise torque output.
Precision cold-wound from SUS304 stainless steel wire with a precise coil body. One end features a small round loop for pin or hole mounting, while the other end has a larger J-hook for hang-and-latch connections — the asymmetric arm design simultaneously accommodates two different fixing methods. The stainless steel body requires no additional coating and maintains stable torque output in humid or corrosive environments, making it ideal for rotational return functions in precision instruments and small consumer electronics.
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Asymmetric arm design (round loop + J-hook) compatible with both pin-mount and hang-latch installation.
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SUS304 stainless steel body with natural corrosion resistance — no coating required.
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Compact coil structure for minimal footprint in space-constrained precision assemblies.
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Stable torque output with excellent fatigue resistance under high-frequency rotation.
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Available in left-hand or right-hand winding for different rotational return directions.
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Arm length, arm shape, wire diameter, and torque angle fully customizable per drawings.
Application areas: Consumer electronics flip-cover hinges / Precision instrument rotational return / Medical device clamp opening mechanisms / Small door lock spring clips / Toy and model joint return assemblies
