Torsion Springs
Torsion spring are a key component in most garage door systems, responsible for balancing the door’s weight and making it easier to open and close. They work by storing mechanical energy when twisted and releasing it to generate the necessary force to lift or lower the garage door smoothly.
How Torsion Springs Work
Location and Installation:
- Torsion springs are mounted horizontally above the garage door, attached to a metal shaft.
- The shaft has cable drums at both ends, and cables are connected from the drums to the bottom corners of the garage door.
Operation:
- When the garage door is closed, the torsion spring is tightly wound, storing energy.
- As the door opens, the spring unwinds, transferring energy through the shaft and cables to lift the door.
- When the door closes, the spring winds back up, storing energy for the next opening cycle.
Types of Torsion Springs:
- Standard torsion springs – Installed above the door, used in residential and commercial doors.
- EZ-Set torsion springs – Easier to install and adjust but less durable under heavy use.
- TorqueMaster springs – Encased in a metal tube for added safety and durability.
Lifespan and Maintenance
- Most torsion springs are rated for 10,000 to 20,000 cycles (one cycle = opening and closing).
- Over time, springs can weaken or break due to metal fatigue.
- Regular lubrication and inspection can help extend the lifespan.
Extension Springs
Extension springs are another type of spring used in garage door systems, primarily found in lighter or smaller residential garage doors. Unlike torsion springs, which store energy through twisting, extension springs store energy by stretching when the garage door closes and release that energy to help lift the door when it opens.
How Extension Springs Work
Location and Installation:
- Extension springs are installed parallel to the horizontal tracks on both sides of the garage door.
- Each spring is attached to a pulley system and connected to the garage door cables.
Operation:
- When the garage door closes, the springs stretch, creating tension and storing energy.
- As the door opens, the springs contract, using the stored energy to help lift the door.
- The pulley system ensures even tension and balanced lifting on both sides.
Types of Extension Springs:
- Open-loop extension springs – Have an open end for easier replacement but are weaker at the connection point.
- Closed-loop extension springs – Have a closed end for more strength and durability but are harder to replace.
- Double-loop extension springs – Have two loops at the end for extra strength and durability.
Lifespan and Maintenance
- Most extension springs are rated for 10,000 to 15,000 cycles (one cycle = one open and close).
- Over time, the metal can weaken from repeated stretching and contracting, causing the spring to lose tension or break.
- Safety cables should always be installed through the center of each extension spring to prevent injury if a spring breaks.
Signs of a Failing Spring
- The garage door opens unevenly or at an angle.
- The door slams shut or struggles to open.
- You hear a snapping noise when the door operates (indicating a broken spring).
- Visible gaps or stretching in the spring coils.
Why Springs Are Important
✅ Provide balanced lifting, reducing strain on the garage door opener.
✅ Ensure smooth and controlled door movement.
✅ Increase the lifespan of the garage door system by distributing weight evenly.
⇩ Schedule a Check-Up Today! ⇩