Today it is no surprise the front metal door, indicating the owners desire to ensure its security.But all their efforts may be reduced "to zero" if were selected and installed not the best or inappropriate locks for metal doors.It is up to the closure of the lock mechanism depends on the safety and security of our house.Choosing a lock for metal door, you need to understand its principle and understand the structure of the castle.Special problems with no choice, as the market locks for metal doors in a wide range and from different manufacturers.
- Features choice to lock the metal door
- class resistance to burglary
- Security lock
- Types and assign locks for the metal doors
- Types secret lock mechanism
- cylinder lock cylinder lock cross
- Cylinder lock pin
- Cylinder lock disc
- Eurocylinder increased protection
- level lock
- Combined Locks
Features choice to lock the metal door
choosing door locks for metal doors, it is necessary
But be careful, because quite often instead of a lock for the input of metal doors, you can buy an ordinary lock for interior doors.And it is fraught with decline primarily safety and quick breakdown of the castle.To the castle served for a long time and provides security, the choice you must follow a simple rule - the reliability of the lock is selected according to the purpose doors, it needs to be guided by an indicator of the castle, as a class resistance to cracking.
class resistance to burglary
There are four classes of resistance to cracking locks.The first class are the simplest to break locks used for interior doors.Time of opening the locks of the first class is less than 5 minutes. second class are opening the locks with time from 5 to 15 minutes.These locks are set as the internal doors and the input. third class locks has raised protective qualities, and time of opening such locks more than 15 minutes.By fourth grade are the most reliable locks, time of opening of which more than 30 minutes.Such locks are installed in the door for areas with high requirements for protection.
It should be noted that the locks for metal doors prices depend primarily on the class of stability to breaking.That in turn implies the use of more durable materials and machinery with a high level of secrecy.For example, locks for metal doors Elbor Basalt has the 4th resistance class in accordance with GOST 5089-2003 and cost about $ 25At the same time locking BRUNO Lock, despite its visual similarity to the CBN, is $ 5, is positioned as a lock for the entrance and interior doors and has a 2nd class resistance to burglary.The difference between these locks is not only the stability of the class, but also the materials used.Choosing locks, preference should be given high-strength steels and try to avoid using soft locks and brittle metals, such as brass, silumin, or different kinds of plastic.
If the materials are all relatively simple and straightforward, the secrecy about the locking mechanism should mention one very important point.Consultants-sellers, eager to impress the buyer, bring in proof of the reliability of the lock number of possible combinations of key and lock.The number of such combinations can reach billions of dollars of value, which usually responds and the buyer.And it can be a fatal mistake.The fact that the secrecy is a complex concept.It includes a number of combinations , protect the castle from mechanical impact , burglary master key, lock and wear the probability of coincidence of keys .There are three levels of secrecy: low, middle and upper.
Low secrecy characterized by the number of possible combinations from 10 to 10000. Such locks are no security elements from mechanical impact, there is no protection from the master key.Profiles key and the location pin in the lock is quite simple.Materials not lock wear and low strength, as well as manufacturing and assembly accuracy is low.These locks can be determined by eye, just looking at the quality of parts.
Average secrecy lock means the number of possible combinations from 5000 to 5,000,000 In such locks can sometimes be missing from the master key and protection from mechanical impact, but they are sure to be a complex combination of pins.The castle is made partly from durable and wear-resistant materials, and production of parts of medium quality.Most of these locks locking mechanism crossbars made qualitatively, but the body and handles are made of low-grade materials.
top secret lock means from 100,000 to a billion possible combinations, the availability of protection from the master key and from mechanical impact.Profile of the key and the combination of pins in these castles is very difficult.Materials castle resistant to acid, and precision manufacturing and assembly is very high.
Types and assign locks for the metal doors
Also secrecy of the castle and its resistance to cracking should pay attention to the type of lock.Here especially no choice.Of all the possible types only one worthy to be a reliable lock for metal doors - a mortise lock.These locks are considered the most reliable and therefore received the most widespread.Mortise locks are installed inside the door leaf and fixed to it.Metal doors serves as a reliable protection of the castle and hides it from prying eyes.Castle is inserted from the end of the door where the strap is attached invoice.This type of lock is represented by all manufacturers.Examples are locks for metal doors Kale.With rare exception, all models of this company Mortice.
As regards the appointment of locks, for the metal doors used two sets of locks: locking and fixing -locking .The difference between these groups is available by lever handles and latches for fixing-locking locks.On safety is not particularly affected, most usability door.You must agree, it is convenient to close the door lock when it is tight against the door frame and latched than to press her knee while trying to turn the key.An example of the fixing-locking locks may serve as locks for metal doors Sisa, namely model CISA 56535.
Types secret lock mechanism
Despite the wide variety of locks and keys forms to them, the secret mechanism of the lock is only two types: cylinderand lever.Both of these types are used in modern locks in one form or another.Options castles and pretty much each one of them has a different degree of privacy, and each of them has its advantages and disadvantages.To determine the best locks for metal doors, we must briefly look at each of the locks.
This kind of locks appeared in the middle of the XIX century and became fairly widespread due to their ease of use.The main advantage is the ease of cylinder locks repair and replacement of the lock.Suffice it to replace the central mechanism for secret - a cylinder "bot" that transmits cranking the key to locking crossbars.Such locks have a key with only one particular combination.The principle of operation of the lock is quite simple and is building the pins inside the cylinder in a certain combination.With the development of technology in the cylinder lock began to be used instead of pins rotating units, washers, mobile probes.If in the process of opening the door to enter the wrong combination of pins, the lock will not open.Secrecy in such locks depends on the number of pins, accuracy of their manufacturing and the possible combinations of position adjustment, as well as protection from the master key.
Cylinder lock cross
Quite often on the input metal doors you can see the cross-shaped hole keyhole.Such locks have good privacy and, depending on the materials used, the quality of the assembly and of the manufacturer, the prices are quite democratic, and typically are in the range $ 20In a secret mechanism used pins arrayed in four key facets, and this is achieved by a large number of combinations.But the main drawback of this castle is its very low resistance to mechanical stress to break the lock.This lock can open in less than a minute using a conventional Phillips screwdriver.These locks are better designed for wooden doors, so put these locks on the front door of the metal is not recommended.An example of such a cross-shaped lock cylinder can serve as a mortise lock Kale 189F 4MF.
Cylinder lock pin
These locks are available in several versions and can be installed in the normal interior doors, and the metal entrance.But the plan to establish this kind of locks, be careful, because the pin locking cylinder can be made under the English or perforated key.In the first case, the castle has a very low secrecy and to open it for 2 - 3 minutes in the cellar.Typically, English key locks are designed for interior doors.The principle of operation of such a lock is to select a combination of pins, but unlike cruciform cylinder lock, the number of combinations is very small.In demonstrating locks for metal doors photo you can see the appearance of a cylinder lock and key example of him.
As for the pin cylinder locks with perforated key, depending on the availability of protective elements they have 2, 3 and 4 class of secrecy.Open the lock using a master key is possible, but very difficult and long.The only quick way of opening - a knocking or drilling "larvae" castle.But, as already noted, if the secret lock mechanism is protected by a special armor plates and plates, such locking is very difficult to crack.Time of opening locks with protective plates is about 40 minutes and is accompanied by a loud noise.Producing such locks for metal doors Mottura, Apex, Elbor, Kale and others.
Cylinder lock disc
This type of cylinder locks for the first time was created by ABLOY.The main difference from the rest of cylinder locks are moving disks instead of pins.The key to such locks has a semi-circular cross-section of the kerf, made at a certain angle.The secrecy of such locks is very high due to the fact that instead of selecting the pin height, wheels lined up at a certain angle.Another important protective quality of locks is the inability to drill the cylinder because of the rotation cylinders.
But there are a number of conditions under which all the possible breaking of the door with a lock.Firstly, acquiring these locks, you must make sure that they are issued by ABLOY, and not on domestic or foreign company under license.Manufactured under license locks only the likeness of the original, and does not have a high class resistance to burglary.Secondly, as a lock for the front door locks should have such bronenakladki and skid plates.Otherwise, the "larva" just knock out the castle.Third, the cylinder lock disk mechanism is often available patch, which also contributes to the high reliability of the power break.Examples are locks for metal doors Apex, namely APECS Model 9331-C-BN.Or locks Abloy Protec Cliq, which is a fine example for installation in the front metal door.
Eurocylinder increased protection
In an effort to ensure the safety of the house locks manufacturers use modern technologies and achievements in the secret of the lock mechanism.The work began with castles Eurocylinder increased protection.They can be open for 30 - 40 minutes, but only with considerable noise.Despite all the familiar principle of the new materials used in these locks have unique properties that provides the highest level of protection.
produce such locks for metal doors Kale, Cisa, Mottura, Mul-T-Lock, Vachette, Asix, Iseo.But each of them has its own unique experience for the secret mechanism.For example, Kale and Cisa cylinders are in the end of carbide inserts to protect against drilling.The castles and Cisa Mottura first pin is made of a refractory metal, which also provides protection against drilling.In other castles provided security bronevstavki or titanium case, providing protection against of cracks in.All cylinders are well have the highest level of secrecy that provide more than 1.5 million combinations.But, as noted earlier, the castle with multi-million combinations vulnerable to the usual breaking out or knockout.Therefore, acquiring Eurocylinder increased protection, which cost a lot of money, you should be careful and make sure you have the protective lining.
addition to the above evrotsilindorov protective properties, they can be used floating element or the magnetic insert the key.This approach allowed to raise the bar of secrecy to the highest level.Choose a key or make a mold for such a lock is not possible.But the price for such locks are more than 100 USD
lock mechanism of this type - one of the first invented by man, but despite this, lever locks are still considered among the most reliable.Of course, like any other lock, you can open, but the time spent on it can vary from 30 minutes to 2 hours.It all depends on the complexity of the secret mechanism and picking protection.
principle of operation is quite simple lever locks.His secret mechanism consists of plates - levers which are arranged at the opening of a specific combination of key on.When you open such a discrepancy can not be locking.The number of combinations and privacy lock depends on the number of levers.The more, the harder it is to open a lock.But the number of levers imposes certain restrictions on the key.The fact is that the more plates, the greater the key bit, which is not very convenient.For added security, the locks are built in such a trap for the master key in the form of false slot.Perhaps the only way to quickly open a lock is to create a duplicate key, which is fairly easy to do.Produce lever locks for metal doors Barrier, The Guardian, Elbor, Kale, Cisa, Mottura, Mul-T-Lock and others.This type of lock is one of the most popular, as combines excellent privacy and affordable price.
As you know, you can open any lock, it requires a certain time.This is understood as the cracks and manufacturers of locks.The latter, seeking to improve the reliability of their products, decided to combine a number of different mechanisms into one.The result is a combination lock, the locking mechanisms which complement one another, and if you do not open one of them, will not open a second or not to turn the locking beams.
Produce combination locks for metal doors Guardian Barrier Elbor, Kale, Cisa, Mottura, Mul-T-Lock, Vachette, Asix, Iseo and many other companies.Often, in the castles of a firm combines two of the most successful and reliable models produced by this company.
Posted by in Doors