The hinge is the mechanical component that allows the armoured door to open and close, connecting the door leaf to the frame.
As well as ensuring the door moves smoothly, hinges play a crucial role in security, because they must withstand attempts to lever the door off its mountings and support the weight of the armoured structure without warping over time.
Hinges in armoured doors
In armoured doors, the hinges must be designed to bear far heavier loads than those on traditional doors.
Since the door leaf is made from steel and insulating materials, its weight can range from 60 kg to more than 150 kg, which often makes reinforced hinges necessary.
A crucial aspect is their fixing system, which must guarantee a stable, long-lasting installation.
The best armoured doors use welded hinges or hinges fixed with steel pins, often equipped with anti-lift systems to prevent attacks with levers or break-in tools.
Types of hinge for armoured doors
There are several types of hinge, designed to offer different levels of security and functionality:
Exposed hinges
Ariete armoured door with exposed hinges
Visible from the outside of the door, but often protected by anti-lift dog bolts, which prevent the door from being removed even during attempts to force it.
Concealed hinges
Ariete armoured door with concealed hinges
Built into the structure of the door, they are invisible when it is closed, improving the look of the door itself.
Adjustable hinges
Adjustable hinges on an Ariete armoured door
Most of the latest generation of armoured doors allow the hinges to be adjusted.
Adjustable hinges let you fine-tune the position of the door leaf if the structure settles, keeping a perfect seal over time.
How to adjust the hinges on armoured doors
In this video we look together at how to adjust the height of an armoured door by working on the hinges.
Conclusion
Hinges are a fundamental component of an armoured door, since they affect both its security and how long it lasts.
A well-designed hinge system guarantees effective protection against break-in attempts and ensures the door is comfortable and smooth to use.
Choosing a door with certified, reinforced hinges is an essential investment to guarantee the highest security and functionality over the long term.