It is hardly possible today to surprise someone with a magnetic lock with a magnetic key. Various models of locking devices, which are based on the principle of magnetic waves, we find almost everywhere. Nevertheless, the industry for the production of such devices is developing successfully, and manufacturers each year offer new models of more intricate and more reliable electromagnetic locks.
Features and differences
Distinctive characteristics of door locks with magnetic keys are their efficiency, noiselessness, reliability and ease of operation. Due to the design features that exclude moving and rotating parts, these devices have a long service life. The reliability and efficiency of magnetic devices of this kind has been proven over many years of service in all weather conditions and in various situations. Systems whose operation is based on the principle of interaction of electromagnetic waves are in many ways superior to other types of locking mechanisms.
Magnetic locks: electromagnetic and passive
The principle of operation of locking devices of this type is based on the interaction of magnetic elements. For their functioning, an additional power supply may be provided in the design of the lock. Due to the action of the electromagnet, which attracts the back plate mounted directly in the canvas, the front door remains in the closed position. Only when a special button is pressed or under the influence of a magnetic key, a short interruption of the current supply occurs, and the sash opens freely. Such devices have been widely used in the field of protection of objects requiring additional control and restriction of visits.
In some models of locking magnetic devices, only mechanical interaction is involved. Such models are often called passive. Of course, they do not have a special power of retention, but in certain areas are widespread. Simplified samples are usually used to close cabinets or as magnetic locks for interior doors. Very often, such mechanisms are used on wallets, purses or women bags. Nevertheless, these systems are unlikely to be suitable as a means of reliable protection and security of the room.
Design of electromagnetic locks
Outdoor locking devices or models used indoors have a simple design. It is based on the use of a metal plate and a steel core in a copper winding installed in a special case.
The case of the electromagnetic lock is usually made of aluminum or steel. In its production, the use of special plastics is allowed, but even the use of high-strength materials does not guarantee the long service life of the lock.
Equipment
To install a magnetic lock with a magnetic key, you will need not only the device itself, but also some additional attributes and mechanisms. The reliability and effectiveness of the lock will depend on the auxiliary elements. In a complete set of the electromagnetic locking device must be present:
- The lock itself, which is sold complete with a reverse metal plate and wiring for connecting the device to an electric current source.
- The controller needed to control the locking mechanism. It is through this element that the rest of the castle’s attributes are connected. The main function of the controller is to provide simulated resistance for the electronic key chip.
- The reader of information necessary to open the door using a special magnetic key.
- A set of keys programmed to a specific frequency.
- A special button, when pressed, you can open the door from the inside.
- Power Supply. Additional batteries will ensure the correct operation of the locking device in case of power outages.
Classification
Given certain design features, electromagnetic locks are usually divided into two groups: systems with a sliding type of opening, and devices that work on separation. Like any other locking mechanisms, electromagnetic devices are divided according to the method of installation on the door leaf. It can be mortise or patch magnetic locks with a magnetic key. Devices can be divided by geometric characteristics: they have a rectangular mechanism or are made in the form of a rounded electromagnetic system.
Lock system selection
When choosing a door lock with a magnetic key, special attention should be paid to the overall dimensions, weight and technical equipment of the device. Modern electromagnetic locks are compact devices, but their adhesion can reach thousands of kilograms. Such devices are suitable for massive and strong doors, since when mounted on not very strong canvases made of plastic profiles, they can deform and lead to jamming of the door. Therefore, based on the mass of the lock, the strength of its impact and the design features of the door leaf, the locking system should be chosen carefully.
Myths about electromagnetic locks
Recently, talk about how to open a magnetic lock without a key-tablet has become increasingly relevant. In fact, electromagnetic locking devices lack the function of introducing a universal numerical code. This may differ only some models of the Vizit system, which in the factory settings have functionality that allows you to open the front door without using a magnetic key.
There are no universal keys that open any electromagnetic device. They simply cannot be due to too different locking systems and their operating principles.
Special keys for such locks cannot be demagnetized due to exposure to strong magnetic fields. Nevertheless, they are easily damaged, therefore they require careful handling.
Reviews
The main technical advantages of a magnetic lock with a magnetic key consumers include the absence of movable locking elements. This factor ensures the long life of the device. Thanks to the ability to control an electromagnetic lock from inside any room, such mechanisms have proven themselves as intercoms. They are trouble-free and effective in all situations and weather conditions. Their only and main disadvantages are called the fact that in the absence of electricity, electromagnetic locks are absolutely incompetent. In this case, they acquire the characteristics of magnetic locks for interior doors and lose the ability to reliably protect the room.