This is a complete side-mounted extension spring replacement kit designed for single sectional residential garage doors. The system uses a dual-spring design (two nested springs on each side) to provide smooth, counterbalanced lifting assistance for manual or automated garage doors.
Key Technical Features
- Weight Capacity: 75kg total door weight (calibrated with a ±3kg operational margin).
- Color Code: White tip indicator ensures quick identification of the 75kg load rating.
- Compatibility: Fits standard single sectional garage doors with a height between 2.0m and 2.3m.
- Material Construction: Heavy-duty, high-tensile galvanized carbon steel to resist rusting and mechanical fatigue.
Performance & Safety Benefits
- Double-Spring Safety: If the outer spring breaks, the inner spring acts as a safety catch to prevent the heavy garage door from free-falling.
- Smooth Operation: Reduces the workload on your garage door motor, extending the lifespan of your automation system.
- Pre-Calibrated Tension: Eliminates the need for manual winding (unlike torsion springs), making the side-mount installation process straightforward.
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