Stainless Steel 90° Double L-Leg Torsion Spring
Applied to hinges and rotational return mechanisms, delivering precise torque output via dual 90° bent straight legs for stable angular control and reliable return action.
Precision cold-wound from SUS304 stainless steel wire, with both ends bent to a standard 90° L-shape using dedicated tooling. The flat, clean leg ends allow direct insertion into slots or onto pivot pins for tool-free assembly. The tightly wound coil body ensures stable linear torque output and is available in left-hand or right-hand winding. The stainless steel body provides natural corrosion resistance with no additional surface treatment needed, ensuring long-term stability in humid or mildly corrosive environments. Available in short-leg and long-leg variants to accommodate different moment-arm lengths and assembly spaces.
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Standard 90° L-bent legs on both ends for direct slot insertion and efficient assembly.
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SUS304 stainless steel body with natural corrosion resistance — no coating needed.
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Tightly wound coils for stable linear torque output and precise controllable return angle.
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Short-leg and long-leg variants available for flexible moment-arm adaptation.
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Left-hand or right-hand winding options to suit different return directions.
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Leg length, wire diameter, outer diameter, and torque angle fully customizable per drawings.
Application areas: Electronic device flip-cover hinges / Eyeglass frame spring hinges / Furniture cabinet door return / Automotive interior knob return / Industrial clamp opening and closing mechanisms
