Our torsion spring for garage are stronger and longer lasting than most other stretch or extension springs on the market. Featuring a sturdy 3 3/4″ inside diameter and varying wire size from 7.0 all the way up to 10 mm, this galvanized torsion spring can effectively counterbalance different sectional garage door weights and sizes. The spring is treated with anti-rust oil and galvanization for protection under the toughest outdoor conditions 🌦️. From homes, apartments and warehouses to office buildings, rolling doors and the transport industry, this tough torsion springs by Garage Door Parts is a high cycle life option for round-the-clock service that you can rely on.

🔑 Key Features

• ID: 3 3/4 inches – inside diameter, heavy-weight sectional garage doors
• Diameter: 7mm -10mm for added strength and flexibility
• Surface treatment: Anti rust Oil + Galvanized for corrosion resistance
• Long Life Cycle tested, High tensile spring steel strength upto 10,000+ cycles
• OEM & Customization for Sizes, finishes, torque value and package available
• Ideal for residential, industrial and commercial sectional doors

⚙️ Technical Specifications

🏭 OEM & Customization Expertise

With decades of torsion spring technology experience, we can help you design and manufacture a torsion spring for garage door to your exact specifications. Our state-of-the-art CNC coiling machines and rigorous testing equipment guarantee compliance with world-class quality standards such as ISO, DIN and ASTM 📏. We provide support on special dimensions, torque ratings, cycle life and finishes. Distributors and dealers receive private labeling, packaging and custom branding services.

• Wire Diameters – custom 6.5mm to 10.5mm
• Finishes available: galvanized, powder-coat, black oxide or painted
• Custom torque and cycle life settings
• OEM private label (article box packing)
• New door system design development and engineering supervision

📦 Applications

• Residential sectional garage doors 🏠
• Industrial overhead sectional doors 🏭
• Goods in/out and lorry doors
• Rolling or Overhead Doors, Heavy-duty
• Outdoor / coastal applications where rust-proof is required 🌊

🌍 Quality & International Standards

Every torsion spring for garage is built to our exacting specifications with strict control over manufacturing. Heat treatment and oil tempering ensure long life without premature wear, while the galvanized finish repels rust and corrosion. All products comply with ISO, ASTM and DIN standards, assuring excellent operation through thousands of cycles. Rigorous testing for torque stability and smooth operation provides user security 🔧.

📐 Installation & Safety

Correct installation is critical to performance. We recommend professional installation for safety ⚠️. Our OEM-ready designs can be pre-equipped with torque loads, load charts and cycle life information. Patented winding cones are ported for ventilation and engineering-balanced to your garage door (winding rods not included).

💡 Why Buy Our Torsion Springs?

• Made of high strength spring steel for durability and safety
• Long lasting anti-rust oil finish & hot dip galvanization
• OEM & Custom designs for sectional door systems
• Production is ISO 9375 certified with strict inspection
• Competitive wholesale prices and flexible MOQs
• Long cycle life increases service life, reducing downtime

📊 Packaging & Logistics

For safe shipping, every torsion spring is double protected and packed in reinforced cartons or on pallets 📦. OEM customers benefit from private label packaging and branding. Our worldwide logistics network ensures fast delivery and stable supply for resellers and manufacturers.

✅ Conclusion

If you’re in need of a top quality, long lasting and customized torsion spring for garage sectional doors at home or business, our galvanized oil tempered springs are perfect. With OEM manufacturing expertise, international certifications and innovative technology, we provide reliable solutions to installers, distributors and manufacturers worldwide 🌎. Designed to last and built for safety, our springs deliver exceptional performance.