Custom Constant Torque Spring Manufacturer – Spring for Window Shades | Seme Hardware

 SM-031 custom stainless steel contorque spring for window shades cordless curtain

Product Basic Parameters

ParameterDetails
Product ItemSM-031
CategoryConstant Torque Springs / Contorque Springs
MaterialStainless Steel
ShapeCoil
SizeFully Customized

【👉 Get a Free Sample & OEM Quote】 

Product Description

SM-031 custom stainless steel contorque spring for window shades cordless curtain

As a professional custom constant torque spring manufacturer  in China, SEME Hardware focuses on the production of high-precision constant torque springs for window shade applications.

Contorque springs are core components for cordless window shades, roller blinds, and spring hoist systems. They provide stable, consistent reset torque and support long‑cycle repetitive use with reliable service life.

We support multi-material customization, including carbon spring steel, alloy spring steel, stainless steel, and various oil‑quenched tempered alloy spring steel materials to meet different product standards and application environments.

Product Features

 SM-031 custom stainless steel contorque spring for window shades cordless curtain

  • Excellent fatigue resistance – Resists long‑term vibration and alternating stress, ensuring stable curtain operation

  • Strong toughness and impact load resistance – Not easy to deform during daily lifting and pulling

  • High elastic limit and stable torque output – Effectively improves curtain smoothness and service life

  • Simple structure – Easy installation, maintenance, and replacement, with low overall use cost

【👉 Get a Free Sample & OEM Quote】 

Product Applications

SM-031 custom stainless steel contorque spring for window shades cordless curtain

Our custom constant torque contorque springs are widely used for:

  • Cordless window shades

  • Roller blinds

  • Household curtain lifting systems

  • Automatic reset mechanical equipment

Ideal for residential and commercial window decoration products.

Packaging & Delivery

SM-031 custom stainless steel contorque spring for window shades cordless curtain

ItemDetails
Inner PackagingPE bag or customized
Outer PackagingStandard carton box or customized
DeliveryAccording to formal contract requirements with stable lead time

Why Choose SEME Hardware

SM-031 custom stainless steel contorque spring for window shades cordless curtain

SM-031 custom stainless steel contorque spring for window shades cordless curtain



Dongguan Seme Precision Hardware Co., Ltd. is a professional constant torque spring manufacturer with over 10 years of precision hardware production experience. We provide:

  • ✅ Full OEM & ODM custom services

  • ✅ Strict quality inspection

  • ✅ Factory direct pricing

  • ✅ On‑time delivery for global clients

Contact Us

📧 Email: [email protected]
📞 WhatsApp / WeChat / Phone: +86 186 6511 1545
🌐 Website: https://www.semehardware.com

📍 Address: Building 1, No. 48 Minghua Road, Shijie Town, Dongguan City, Guangdong Province, China

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SM-031 custom stainless steel contorque spring for window shades cordless curtain

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