If a spring of the guide rail system breaks (for instance at the end of its life), it is possible for the overhead door to suddenly shut at great speed. For manually operated doors especially, this can result in dangerous situations. Therefore, these overhead doors are fitted as standard with an obligatory spring break safety device. If another mode of operation is used, the spring break safety device can be fitted as an extra option.
Spring break safety device
Cable break safety device (recommended)
In the unlikely event that one of the cables of the guide rail system breaks, an unsafe situation can develop when opening or closing the door. To reduce the risk of a cable break, we overdimension the cables six times. This reduces the probability of both cables breaking at the same time to almost zero. Although when using our cables it is not obligatory to fit a cable break safety device, we recommend that one be fitted. After all, safety really does come first.
Slack cable safety device
If the cable goes slack, for instance if when closing the door it stops moving, the slack cable safety device ensures that the motor stops. Dependent on the bottom bracket used, one or two slack cable devices are required. If the cable break device is used as a bottom bracket, then a single slack cable device is sufficient. When all other bottom brackets are used, two slack cable devices must be ordered.
Safety edge
You can also select a safety edge to be fitted on electrically operated overhead doors for additional safety. If the door closes while someone or something is under it, the safety edge stops the door automatically.
Anti-lift device
A small overhead door can easily be secured with a (sliding) lock or our Smart-Lock device. For larger, heavier doors, a security lock is probably less necessary. But for relatively small overhead doors, that can be lifted by hand, an anti-lift device is recommended. Such a device will prevent uninvited guests entering your building via the overhead door.
Finger protection
Finger protection is obligatory (CE standard) for overhead doors up to a height of 2.50 metres (the height of the pivot point of the top section). Finger protection is not obligatory for higher overhead doors, but offers extra protection.
All our Pro-Line S40 and A40 models are fitted with finger protection. The choice is yours
Summary of the safety/ security possibilities
| Description | Obligatory | Recommended |
|---|---|---|
| Spring break safety device | For manually operated doors and doors operated by a chain hoist |
Always |
| Cable break safety device | If the cables are less than six times overdimensioned |
Always |
| Slack cable safety device | For electrically operated doors | Install 2 per door |
| Safety edge | Not obligatory | For safety and ease of use |
| Smart-Lock device | Not obligatory | For security and smaller doors |
| Finger protection | If the pivot of the top section is below 2500 mm |
Always |