Magnetic door locks can be used on many types of doors, car gates and walk-in gates. They are designed to secure any type of door or gate as long as it closes against a fixed stop, with the added advantage compared to other door locks of no moving parts to bind or wear out. They can be used on doors made of any material: metal, wood, aluminum or glass doors. The design on full glass doors allows access while maintaining an aesthetic appearance, while for manual sliding doors narrow magnetic door locks are designed to conceal their installation.
Some magnetic door locks have additional features as a built in buzzer, a built in key switch, an option for time delay or door monitoring, and they are of course weather resistant. They are very effective in restricting and controlling entry of unauthorized people in to your home or office. For fire safety magnetic door locks provide instant discharge, when they receive a signal from the fire command center or from a remote control. One of the major advantages of using magnetic door locks is that they can not be picked or tampered with like a traditional door locks with a cylinder. Furthermore it relieves you the need to use keys since the lock is used attached to an electrical security system.
Magnetic door locks are built with an electromagnet and an armature plate. On the inside of the door the magnet is mounted, to prevent any sort of obstruction with the mechanism. The plate is installed on the face of the door. The magnet is connected to an electrical source thus producing a strong magnetism, holding the magnet tight to the plate, successfully keeping the door locked. The electrical source can be either the building’s electrical system or a separate battery. Magnetic door locks are “fail-safe,” since when there is a power failure or alarm activation the door will remain unlocked, allowing everyone to exit safely.
Magnetic door locks are based on the principles of electromagnetism. A magnetic force strong enough to prevent the door from opening is produced when an electrical current runs through the wire. They are rated based on the total force they can endure without failing. For example, a 1,200 pound magnetic door lock can endure 1,200 pounds of force still securing the building.
There are four basic methods to operate magnetic door locks; either connected to a buzzer which is manually opened by someone inside the building, or used with a keypad, entering a code to open the door. Larger companies may choose to use key card readers or scanners that read fingerprints to activate them. A warning is issued when a door is unlocked by an unauthorized key car, and there is an option to lock and unlock the doors from a central location. The magnetic door locks can be combined with conventional door locks for added flexibility or security.
Magnetic door locks are available in a large variety of sizes and are especially suited for using on doors which are chosen to be the fire exits of the building, but still have the need to be secure from the outside. Choosing the proper strength lock must be individual for each door. Glass doors have specific characteristics and have only a small range of suitable secure locking systems.