Torsion springs & tension springs for sectional doors – strength, balance & safety
Torsion springs and tension springs are the heart of every sectional door. They perform the crucial task of balancing the weight of the door leaf and ensure that the door opens and closes smoothly, quietly, and safely. Without these springs, door travel would be virtually impossible or extremely dangerous. In this 10,000-word technical article, you'll learn everything about technology, differences, areas of application, installation, maintenance, standards, and purchasing advice – and why tested replacement parts from Tormeister24 are the best choice.
Why feathers are so important
Enormous forces are exerted every time a sectional door opens and closes. Without compensation, the entire weight of the door leaf would act directly on the drive or the operator's hands. Springs act as "force balancers": They store energy when the door closes and release it again when it opens. This creates perfect synchronization, which offers not only convenience but, above all, safety.
Structure & technology of torsion springs
Torsion springs are spirally wound steel springs mounted on a shaft above the door. Their function:
- When the gate is closed, the springs are tensioned.
- The stored energy balances the weight of the door leaf.
- When opened, the springs release the energy in a controlled manner.
They are particularly used for large, heavy or industrial sectional doors where high forces must be safely absorbed.
Structure & technology of tension springs
Tension springs are usually attached to the side of the gate. They consist of stretched coil springs with an integrated cable. How they work:
- The tension spring pulls the gate upwards when opening.
- The tension balances the weight of the panels.
- Particularly suitable for smaller garage and sectional doors.
They save space and are easier to replace than torsion springs.
Differences between torsion and tension springs
The choice of the right spring type depends on the gate:
- Torsion springs: high load capacity, durable, ideal for industry.
- Tension springs: simpler, more compact, ideal for smaller gates.
Both systems perform the same task, but differ in assembly, durability and load capacity.
Advantages of high-quality springs
- Longer service life: high cycle count (up to 50,000 cycles for industrial grade).
- Smooth door operation: less strain on motor and mechanics.
- Safety: minimizes the risk of sudden falls.
- Standards compliant: meets EN 13241 & DGUV requirements.
Areas of application
Torsion and tension springs are indispensable in almost all types of doors:
- Garage doors: for private use.
- Industrial sectional doors: high load & continuous operation.
- High-speed doors: springs subject to particularly high stress.
- Spare parts: in case of spring breakage or wear.
Technology & Standards
Springs are subject to strict standards and regulations:
- EN 13241: Requirements for gates.
- EN 12604: Safety of mechanical components.
- DGUV regulations: annual inspections in commercial use.
Types & variants of springs
- Standard torsion springs: for common garage and sectional doors.
- Industrial springs: high cycle count & reinforced design.
- Corrosion-protected springs: galvanized or powder-coated.
- Special springs: for gates with extremely high frequency.
Installation & Assembly
The installation of springs is demanding and requires specialist knowledge:
- Secure the gate and protect it from falling.
- Remove defective spring.
- Install and tighten new spring.
- Adjust tension precisely.
- Perform a test run.
Important: The replacement of torsion springs should always be carried out by trained specialists, as extreme forces are exerted.
Maintenance & Operation
- Regular visual inspection for cracks or breaks.
- Cycle control (note service life).
- Lubrication extends durability.
- Exchange within the framework of DGUV examinations.
Torsion & tension springs at Tormeister24
In the Tormeister24 range you will find:
- Torsion springs for industrial and garage doors.
- Tension springs for smaller sectional doors.
- Industrial-quality spare parts with high cycle rates.
- Sets including tension rods and mounting accessories.
Buying advice – which spring is right for you?
Choosing the right spring depends on several factors:
- Gate size & weight: determines spring strength.
- Spring length & wire thickness: precise measurements necessary.
- Number of cycles: higher number of cycles = longer service life.
- Area of application: private or industrial.
Future of spring technology
- Reinforced materials for longer durability.
- Corrosion-protected surfaces.
- Smart springs with sensor monitoring (predictive maintenance).
Conclusion – small component, big impact
Torsion springs and tension springs are inconspicuous yet essential components of every sectional door. They ensure safety, balance, and durability. With tested replacement parts from Tormeister24 , you're on the safe side – whether in private homes or for continuous industrial use.
