Torsion spring of universal garage door is an important component in modern sectional door system. It counterbalances the weight of the door so that it can be easily opened and closed, featuring superior performance for industrial, commercial and residential applications. Our galvanized torsion springs are constructed with safety and durability in mind, with inside diameter 2 inch, wire diameter of spring ranging from 5.0-6.8mm, an anti-rust oil finish and galvanization treatment that protects the coil from corrosion.

• 218 X 2 X 26 Garage Door Torsion Spring High Strength with Winding Bars, Rated for 10000 Cycles from P728 to P739
• Wire diameter: 5.0mm – 6.8mm for various sectional door demands
• C-4662 Materials: Detailed Specifications – Corrosion Protection with SEO coating & HDG finish
• Robust steel case: Strong and compact with long discharge lag for reliable performance
• OEM available for size, wire thickness and finishing
• Perfect for sectional doors in residential garages, factories, and warehouses

With decades of experience in the production of precision springs, our company offers OEM and customized services for a variety of sectional garage door systems. Whether you need specific wire diameters, coil lengths, or surface treatments, our engineers are ready to supply the perfect garage door torsion spring solution to meet your project requirements.

• Custom wire gauge from 4.5mm to 8mm
• Optional finishes: galvanized, powder-coated, black oxide, or painted
• Private labeling and custom packaging options for distributors
• High volume support with quick lead times
• Engineering support for new product design

Our staff utilizes CNC coiling machines and stringent quality control to produce springs tested to international standards. We serve worldwide clients with stable quality, ultra-long cycle life, and efficient technical advice.

This type of garage door torsion spring provides smoother and cleaner operation, reducing the need for additional coatings. It is suitable for:

• Residential sectional garage doors
• Industrial and commercial sectional doors
• Warehouse loading bay doors
• Rolling and overhead sectional doors
• Heavy-duty garage usage systems

Also suitable for humid, coastal, or outdoor environments requiring corrosion resistance.

Each torsion spring is properly heat-treated and oil-tempered to ensure the correct torque and performance. Our ISO-certified factory uses international standards such as ASTM and DIN. Cycle testing ensures tens of thousands of openings and closings, reducing maintenance costs while ensuring safety.

The installation of a garage door torsion spring requires technical expertise and proper tools. Poorly fitted structures may pose a safety risk. We recommend professional installation. Our OEM-enabled products can be pre-set with torque specifications, cycle life data, and load charts for simplified installation.

• Anti-rust oil finish & galvanization for corrosion resistance
• High tensile and durable spring steel
• OEM & customization for specific door sizes
• Rigorous ISO-certified quality control
• Wholesale and dealer volume pricing
• Long life cycle with reduced replacement costs

Our torsion springs are securely wrapped and packed in export cartons or pallets to prevent damage during transport. Custom packaging and private label services are available for bulk orders. We provide global shipping with short lead times, helping distributors and OEM customers maintain inventory efficiently.

If you’re looking for a torsion spring with safety, durability, and easy installation, our galvanized anti-rust oil tempered springs are the perfect choice. With OEM production experience, advanced technology, and strict quality control, we deliver high performance, safety, and value. Whether you are an installer, distributor, or manufacturer, our torsion springs can be customized to fit your sectional door systems.