Modern cylinders have very high secrecy and perfectly oppose the "quiet" autopsy. But how to protect them from rude strength?
Feature of cylinder castles
The peculiarity of the cylinder locks is that their code part is placed in a separate compact case (actually cylinder), which can be removed by unscrewing the fastener screw on the end bar. Such a design allows you to replace the mechanism of secrecy without any problems if it is damaged or when the key is loss. Another plus is the miniature size of code parts (pins, disks), which makes it difficult to manipulating opening. (The latest generations are not amenable to "advanced" launders, including electric and electronic.)
Photo: V.Ladimir Grigoriev / Burda Media. Experts converge on the fact that a modern high-quality cylinder with a protective qualification protector is not inferior to a powerful suvalden castle and can serve as a basic locking mechanism
Alas, because of the same design features, cylinder locks are vulnerable to hacking. There are cases when the resistance of the mechanisms managed to overcome with the help of the simplest household tools like a hammer or a powerful screwdriver.
Meanwhile, the leading manufacturers, such as Abloy, Caba, Cisa, Mul-T-Lock, have long received efficient countermeasures. In the design of the cylinder, improvements were made to increase its strength, and in addition, external protective devices appeared on the market - protectors.
Reinforcing design details. Suppose, the keyway knocked the rod from the tempered steel, and the side of it was hampered. The cylinder is sometimes rehearsed in the middle part - where the swivel cam or gear and the hole under the fastening screw are located. To exclude the possibility of hacking in this way, in some models, the cylinder body is performed from elastic steel or amplified by plates or a rod from a durable alloy.
Photo: "became", abloy. Nowadays, contributes and mortise locks are most common. The first are intended exclusively for steel doors, the second universal.
Another common method of hacking is the surveys of the flage (rotating part) of the cylinder. In such a situation, the balls and vertical rods from solid alloys help pressed into metal; Stumbled upon them, the drill goes sideways. Pins (all or some) are also performed from hardened steel. As a result, the mechanism is better resisting both drill, and a screwdriver (thieving tool, which makes it possible to test the flap in the housing with the effort.
The strengthened fastening screw reduces the risk of knocking the cylinder. Finally, the market presents actuators, automatically blocking goals when removing a cylinder (some CISA and MOTTURA models).
External protectors
They are also called armor and armoredaca. The protector partially closes the cylinder end and protects against any power influences. In this case, the efficiency of the product depends not only on the strength of the material from which it is manufactured, but also on the installation method. The armorps, fixed on an external steel sheet of the door leaf, and even more so on the finishing panel, are almost useless: they are easily knocked down by a hammer blow. So that the protector coped with its task, it must be fixed with long and powerful screws through the castle body or blend into the canvas.
The armored cars for the pinov cylinders must be equipped with a rotating sleeve at the location of a keyhole that prevents drilling; It does not hurt and strengthening in the lower part, followed by retaliatory pins.
The installation of the external tread must be provided when ordering the front door, since the holes for the installation of this device must be done in production.
A multi-level protection is provided in abloy disk cylinders. First of all, extremely high secrecy (2 billion code combinations) and the wear resistance of the mechanism that exclude the possibility of selection of the key or opening with the launder. In this case, the special profile of the key makes it difficult to unauthorized production of duplicate. In addition, the locks have integrated protection against power and instrumental influences: the first disk is freely rotated, which interferes driving the parts of the mechanism, and the cylinder is reliably attached in the housing, so it is impossible to reject it, or knock it out. Also, products are equipped with an armored car and at the request of the customer are supplied in a reinforced body of hardened steel. In practice, the hacking of a modern castle Abloy with the help of a professional power tool takes more than 40 minutes. I note that the company produces cylinders both Finnish (Scandi) and European (DIN) type (with an identical mechanism); The second is suitable for the absolute majority of locks.
Pavel Pomat
DOMINO sales department head
Photo: Abloy. Armored courses are able to prevent power hacking. The market also contains anti-vandal valves for a magnetic key closing the locking well, but they are intended mainly to fight attempts to bring the castle in order
Photo: Abloy. Disc cylinders are not amenable to vibration opening.
Photo: Kaba. As for the pithy models, only products with multi-row (in two or more planes) location of codepins are protected from modern electrices.
Photo: Kaba. The case of the executive mechanism, closed with a steel sheet of web cover, is rarely subjected to attack of intruders