To order the right torsion springs for your sectional door, please follow these detailed measuring instructions:
1. Measure the inner diameter (ID)
• Use a caliper to measure the inside diameter of the spring. This is the distance between the inside edges of the spring coils.
2. Determine wire diameter
• Measure the diameter of the wire that makes up the spring. Use a caliper and measure in several places to get an accurate average.
3. Length of the spring in the relaxed state
• Determine the length of the spring when it is completely relaxed, but without any spring heads . Make sure the spring is lying straight to ensure an accurate measurement.
4. Determine spring side (left or right)
View of the gate from the front (e.g. with standard fitting - spring shaft at the front):
• Left = left-handed (spring mounted on the left)
• Right = right-handed (spring mounted on the right)
If the spring is attached in the middle and the clamping cone points outwards, the situation is reversed:
• Left (front) becomes right-handed
• Right (front) becomes left-handed
If the spring is at the back (e.g. with low-camber fittings):
• The directions are mirror-inverted , ie seen from the inside:
• Left becomes right-handed
• Right becomes left-handed
5. Measure shaft diameter
• Measure the diameter of the torsion shaft on which the spring will be mounted. This is crucial to choose the right spring.
6. Safety devices: spring break protection
• Important : Regardless of whether your garage door is manually operated or equipped with a garage door opener, we strongly recommend installing a spring break safety device . This device prevents the door from falling uncontrollably in the event of a spring break, which can prevent serious injury and damage.
If you are unsure, please call us.
7. Always replace both springs at the same time
• To ensure consistent tension and functionality, you should always replace both torsion springs at the same time , even if only one spring is defective. This will extend the life of your garage door system.
This guide will help you take precise measurements to replace your torsion springs. If you are unsure, please contact a professional to ensure the safety and functionality of your garage door.