A typical garage door is made up of four or five panels connected by hinges. These doors usually weigh hundreds of pounds, but you may notice that we can easily lift them by hand. The reason for this is the garage door springs. Springs are a crucial part of the garage door; without them, the door wouldn't be able to open or close.

This article will explain the importance of garage door springs and how they work.

What Are Garage Door Springs?

So, what is a garage door spring? A garage door spring is an important part of the garage door. Its job is to balance the weight of the door, making it easy to open and close. When the door is closed, the spring stores a lot of mechanical energy. When the door opens, this stored energy is released, doing most of the work of lifting the door and easing the load on the motor and other parts.

Types of Garage Door Springs

Before understanding how garage door springs work and why they are important, you need to know the two types of garage door springs. Generally, there are two kinds: torsion springs and extension springs.

Torsion Springs

Garage door torsion springs are usually installed above the garage door panels, mounted on a metal shaft. They work with parts like flanges, steel cables, and pulleys to form a complete spring balance system. The torsion spring lifts the garage door by twisting the metal shaft. Compared to extension springs, torsion springs can carry heavier loads.

Extension Springs

Garage door extension springs are usually installed on both sides of the horizontal track above the garage door. They are secured with safety cables and connected to the door through pulleys and cables. While extension springs are easier to install, they are more expensive to maintain than torsion springs. Torsion springs also offer better stability.

So, if your garage door uses extension springs, it is recommended to switch to torsion springs for better safety and stability.

How Garage Door Springs Work

Mechanics of Torsion Springs

When the garage door is closed, the torsion spring is wound tight, storing a lot of energy. This tension creates enough force to lift the weight of the garage door. When the door opens, the torsion spring unwinds and releases this energy, lifting the door. That's why even if you open the door by hand, it feels very easy.

Mechanics of Extension Springs

When the garage door is closed, the extension spring is stretched, storing potential energy. When the door opens, the extension spring contracts and releases this energy, which then lifts the door through pulleys and cables.

The Importance of Garage Door Springs

Garage door springs are crucial to the garage door system. Their main job is to help balance the weight of the door, allowing it to open and close smoothly and safely.

Without the balance provided by the springs, the door would not open or close steadily, and it could even fall suddenly, creating a safety hazard.

At the same time, garage door springs help reduce the force needed by the opener, easing its workload and extending its lifespan. Without the springs, the opener would have to bear more weight, require more power, and could wear out too soon.

Also, if there’s a power outage, garage door springs allow you to easily lift the door by hand, even without the electric opener. Without the springs, opening or closing the door manually would require a lot of effort, making it nearly impossible for most people, especially those with less strength.

Garage Door Spring Process

Garage door springs are mainly made of thick steel wire coils and flanges at both ends. They are processed through steps like material selection, bending, tempering, painting code, zinc-plating, anti-rust oiling, adding lining, and adding spring fitting.

Material selection: The raw material for the steel wire comes in standard sizes such as 7.0, 7.5, 8.0, 8.5, 9.0, 9.5, 10.0, 10.5, 11.0, 11.5, and so on. The wire is made from 82B carbon spring steel, and special steel wires can be customized.

Spring bending: Using specialized equipment, the raw steel wire is wound into the required spiral shape.

Tempering and Shaping: The spring is heated to a certain temperature and then cooled to increase its hardness and strength. The temperature is adjusted based on the torsion spring's specifications, and this process helps shape the spring.

Painting Code: Text such as date and specifications can be sprayed onto the surface of the spring as needed.This is optional.

Zinc-plating: The steel wire spring is coated with zinc to prevent rusting. This is optional.

Anti-rust Oiling: Apply anti-rust oil to the garage door spring.

Adding Lining: Add lining in sizes like 3-3/4", 5-1/4", or 6". The spring length equals the length of the inner lining.

Add Spring Fitting: Attach different flanges such as 2", 2-5/8", or 3-3/4".

For more information, please check out our YouTube video ----Producing process for spring

The Lifespan of Garage Door Springs

The lifespan of garage door springs is usually between 7 to 12 years, depending on how often the door is opened and closed.

The lifespan is typically measured in cycles, with one cycle being a complete opening and closing of the door. The spring's fatigue count should exceed the number of cycles required for the door to open, ensuring it doesn't break within its expected lifespan.

In general, the number of cycles a garage door spring can handle depends on factors like the size and weight of the door, installation settings, how often the door is used, its age, and the working environment.

Standard garage door springs typically last around 10,000 cycles, but springs with a longer lifespan can also be custom-made.

Conclusion

Well-maintained garage door springs are crucial for the smooth operation of the door. By understanding the types of garage doors, how they work, and keeping them properly maintained, you can avoid unnecessary manual handling and potential safety risks.

FAQ

Can I Replace My Garage Door Springs Myself?

No, you should not. Garage door springs are usually very heavy, and if a spring that is under tension breaks or loosens, it can release force equal to the weight of the entire garage door, which is very dangerous. Therefore, garage door spring repair should be left to professionals.

How Often Should I Have My Springs Inspected?

In regular use, the springs should be checked and lubricated from time to time, usually about twice a year. If you use your garage door more frequently, the springs should be checked and maintained more often.

What Should I Do if My Garage Door Spring Breaks?

If you notice that a garage door spring has broken, stay away from the door. Do not attempt to open or close it, because the door is heavy, and the spring carries its entire weight. If you try to use the door with a broken spring, the door could fall, which is very dangerous. You should immediately contact a professional to replace the spring. Do not try to replace it yourself to avoid unnecessary safety risks.