Hörmann R720 torsion spring for track application N, L or H, right-hand wound

Torsion springs sit above the door on the shaft and balance the weight of a sectional garage door so that it can be opened easily by hand and by an operator. The R720 spring is intended for Hörmann sectional doors of series 20, 30 and 40 with track application N, L or H and is right-hand wound. It is supplied including the spring cone.

How to find the right spring

Each spring has a small aluminium label at the end with a designation, for example R720. Order a spring with the same designation. The spring on the other side of the door has its own designation, for example L720 – check that on the label too. You will find other types in the Garage door spare parts category. If you cannot read the designation, write to eshop@saver.sk.

Safety

• Replace both springs – the springs are calculated for the same load. When one breaks, the other is close to its breaking point.
• A spring can break suddenly – so do not wait after one spring breaks; replace both.
• Have the replacement carried out by a specialist – a tensioned torsion spring is dangerous. In the Košice and Prešov regions we replace it; more on the page Service.

When replacing, also check the wire ropes for track application N and the spring-break safety device.