Garage door extension springs use resistance to help a door function. They're tightly coiled and extend and retract as a garage door operates. In general, extension springs return a moving object to its original position. Something moves, which extends the spring, and the resistance in the spring pulls the object back. That's how garage springs work. In a garage door system, extension springs attach to pulleys and go above the door's horizontal track. Tension in the spring then helps the door to operate.
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Material | Meet ASTM A229 Standard | |
Inside diameter | 90LB 100LB 110LB 120LB 130LB 140LB 150LB 160LB 170LB 180LB | |
Sample | Free sample | |
Product type | Extension spring | |
Production time | 4000pairs - 15 days | |
Warranty | 3 years | |
Package | Carton box and Wooden case | |
Choosing the Correct Garage Door Springs for Enhanced Security LB:90LB 100LB 110LB 120LB 130LB 140LB 150LB 160LB 170LB 180LB US standard Extension Spring |
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Our Heavy - Duty Double - Looped Garage Door Extension Spring is engineered to meet the most demanding requirements. Constructed from high - carbon alloy steel, it offers extraordinary tensile strength, capable of withstanding significant loads. The double - looped design is not only a mark of durability but also enhances the spring's functionality. This unique configuration allows for a more even distribution of force during the door's operation, reducing the risk of premature wear and tear.
The manufacturing process involves precise coiling techniques, ensuring that each coil has a consistent pitch and diameter. After coiling, the springs are heat - treated to optimize their mechanical properties. This heat treatment hardens the steel, increasing its resistance to fatigue and extending its lifespan. Our team of experienced spring engineers oversees every step of production, and all springs are rigorously tested in - house to meet the strict quality standards set by our ISO 9001:2018 - compliant quality management system.
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The heavy - duty springs are particularly well - suited for industrial and commercial garage doors. In large warehouses, where heavy - duty trucks and equipment are constantly being moved in and out, the doors need to be robust and reliable. Our extension springs can handle the frequent opening and closing, providing smooth operation even under extreme usage conditions. They are also ideal for industrial facilities with high - traffic garage areas, such as manufacturing plants and distribution centers.
For some larger residential garages that house heavy vehicles like RVs or boats, the Heavy - Duty Double - Looped Garage Door Extension Spring offers enhanced support. It ensures that the garage door can be opened and closed easily, without putting excessive strain on the door mechanism. Additionally, in public facilities such as large - scale transportation hubs or maintenance depots, where large garage doors are in constant use, these springs prove to be a reliable choice, guaranteeing consistent performance and minimizing downtime.
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