🔑 Key Features

• Interior diameter: 5 1/4″ for sectional garage doors
• Wire range: 7.0 to 10.5 mm for strength and flexibility
• Surface finish: Anti-rust oil or zinc plating for superior protection
• Constructed of high-tensile spring steel with heat treatment
• Tested for 10,000+ cycles at variable endurance levels
• OEM & Customizable in sizes, finishes, torque values, and packaging
• Perfect for household, business, and industrial upward doors

⚙️ Technical Specifications

🏭 OEM & Customization Expertise

Our overhead door torsion springs factory specializes in precision OEM manufacturing with advanced CNC coiling machines and testing equipment 📏. Every torsion spring is built to ISO, DIN, and ASTM standards. We provide tailored solutions including specific wire diameters, torque ratings, cycle life, and surface treatments. Distributors benefit from private labeling, branded packaging, and engineering support for new door system designs. Our overhead door torsion springs are specified for multinational OEM projects worldwide.

• Wire diameters: 6.5 mm – 10.5 mm
• Optional finishes: galvanized, powder-coated, painted, or black oxide
• Programmed torque and cycle life settings available
• OEM packaging and private label branding
• Engineering support for sectional and overhead door systems

📦 Applications

• Residential sectional garage doors 🏠
• Industrial overhead doors 🏭
• Warehouse and logistics center doors
• Rolling and heavy-duty overhead systems
• Outdoor or coastal applications requiring rust resistance 🌊

🌍 Quality & International Standards

Our galvanized torsion springs are built with premium steel, offering double the life compared to average springs. Heat treatment and oil tempering guarantee strength and cooler performance. Galvanized surfaces resist rust and corrosion, making them ideal for outdoor use. All products comply with ISO, ASTM, and DIN standards for performance and torque flow 🔧.

📐 Installation & Safety

Correct installation is essential for safe garage door operation ⚠️. We recommend professional installation for security and reliability. Our OEM torsion springs can be delivered with torque load data and cycle life charts to simplify installation. Optimized for smooth performance, each spring reduces technical risk and improves system reliability.

💡 Why Choose Our Overhead Door Torsion Springs?

• Made with high-strength spring steel
• Durable anti-rust oil and galvanized finish
• OEM and customizable designs for any sectional or overhead system
• Certified with ISO 9375 and global quality standards
• Competitive pricing with flexible MOQs
• Extended cycle life for long-lasting use

📊 Packaging & Logistics

Each overhead door torsion springs is double-protected, packed in reinforced cartons or on sturdy pallets 📦. OEM customers can enjoy custom branding and packaging. Thanks to our global logistics network, orders are shipped quickly with flexible delivery solutions to meet diverse distributor needs.

✅ Conclusion

If you need long-lasting, reliable, and safe torsion springs for sectional or overhead garage doors, our galvanized torsion springs are the perfect choice 🌎. Featuring OEM flexibility, rust-resistant finishes, and extended life cycles, they are trusted by distributors, installers, and manufacturers worldwide for strength, durability, and safety.