Lock cylinders for metal and wooden doors. Door lock cylinders

Not a single door can protect an apartment if the owner does not take care of a reliable lock. There are thousands of them on the market, in different price categories and with different types work. But the main element of any lock is the cylinder. There is not always a need to change the lock; sometimes (if it breaks or loses the key) it is enough to just replace the cylinder. But how to choose it?

Main settings

The simplest choice is a cylinder that complies with the DIN standard. It is not difficult to recognize it; the larva has a teardrop-shaped through groove. The height of the groove is 34 millimeters, the protruding part is 10 millimeters wide. These larvae are standard and their selection in the store is simply huge. If the cylinder does not meet the specified standard, it is necessary to choose a cylinder produced by the same manufacturer as the lock.

However, there are exceptions to all rules, and in this case too. Thus, well-known manufacturers Mul-t-lock and SuperLock use larvae in their designs that correspond in size to the above standard. But the device does not have a standard drive; it uses gears instead of cams. What should I do? Purchase a cylinder with gears from any manufacturer that produces such products.

It is important to know. The internal and external length of the cylinder has its own meaning. The longer outer part, the easier it is for intruders to open such a lock.

Key types

By appearance key, you can recognize not only the cylinder, but also establish the reliability of the mechanism. Budget classic cylinders should be chosen for rooms where the threat of opening the lock is minimal. Such mechanisms are opened using an English key. It is a flat or shaped canvas with a toothed cut. Distinctive feature is the location of the pins in the same plane. It is worth abandoning the cylinder that unlocks with a cross-shaped key; its reliability is recognized as minimal.

Locks that are opened with a semicircular disk key are more reliable. The plate has grooves and grooves on both sides, which makes breaking in difficult. However, not every manufacturer can provide cylinders with a semicircular disk key of appropriate quality, so they are not common.

Punch card keys are recognized as the most resistant to hacking. They combine several types of secrets, and also additionally use magnetic or electronic chips. The secret elements are offset, making it not easy to open the lock.

But, of course, we should not forget about the overall reliability of the lock. If it is made of steel, it will be more difficult to damage it.

Resistance to opening

Reliable protection is provided by the larva, which combines secrecy, compactness of the well and strength of the material. The most simple larvae have up to five pairs of pins, more complex designs the manufacturer supplies 13 pairs.

As for the well, the narrower it is, the more difficult it will be for a thief’s tool to penetrate it. Moreover, if the hole has false passages, depressions and curvatures. The strength of the material is important when it comes to mechanical burglary.

Today, attackers have developed this type of hacking door locks like bumping. The key blank is inserted into the hole, after which it is struck. The consequence of this is that the pins get into the grooves and the core rotates. However, locks with electronic or magnetic code this way they cannot be hacked. Bumping is only dangerous for devices that have a spring.

To summarize, we can say that the choice of cylinder depends on where the door is installed. For apartments in high-rise buildings, simple devices are suitable, and for cottages it is worth purchasing locks with maximum protection.

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The lock cylinder is the coded part of the mechanism, which ensures the secrecy of the structure and moves the bolts. Because the cylinder is inserted inside the body and looks like an oblong part, it was popularly called a “larva.”

Many buyers are wondering how to choose a cylinder for a lock, what needs to be taken into account and, in general, what types of this mechanism exist. Let's try to understand all the structural diversity of "larvae" by considering the basic standards, parameters and nuances.

Before choosing a cylinder, you should know that there are many types of “larvae”. Let us designate the most common models that meet European DIN standards (Europrofile). In addition, their widespread use has supplanted other similar types of cylinders.

Certified mechanisms are produced in many countries: from Japan to Portugal. The price of the "larva" directly depends on design features and manufacturer (from 100 to 30,000 rubles). The more serious the brand and the better the quality of the mechanism, the higher its cost. You can also add some innovative ideas here, original material and so on.

In order for the average person to understand how to choose a cylinder, it is necessary to clarify the basic parameters responsible for the operation of the mechanism.

Length and offset

The first parameter is length: the distance from one edge of the cylinder to the other. Depending on thickness door leaf and castle, the sizes also vary.

The next thing is the displacement of the "larva". As a rule, the cylinder is divided by a rotary cam, which is shifted to one side, dividing the mechanism into outer and inner parts. If the cam is exactly in the middle, then the cylinder is considered equilateral.

Dimensions

For example, the dimensions of the cylinders for Turkish-made locks of the English type are as follows: 71 mm with an offset of 40 and 31 mm, respectively. This design is used mainly in plastic products: office and verandas, gazebos, etc.

The most common cylinder sizes for locks are Chinese mechanisms with a total length of 90 mm. This size is commonly used at entrance and interior doors made in China, which literally flooded our market.

When choosing a lock for a cylinder, it is important to take into account that the entire structure does not protrude beyond the plane of the door leaf on either one side or the other. If the door is made of wood, then the “cylinder” should be flush with decorative overlay. The maximum permissible protrusion of the “larva” is 3 mm: anything that goes beyond this limit can easily be used by burglars. If the lock is equipped with an armored lining, then the length of the outer part of the mechanism will depend on the specific dimensions of this lining and the door itself.

Cylinder for lock with pinwheel

Sometimes the cylinder may be equipped with a rotary spinner for convenience. It allows you to easily open and close the mechanism without a key. It is worth noting that the turntable has no “dead” points, therefore, at any position of the slider native key on the other hand will always open the lock.

Basic the lineup presented on our market by Chinese manufacturers (60 mm mechanism) and more expensive Italian models with a rotary handle (72 mm).

Other cylinder standards

If the models indicated above are suitable for almost any lock and can be safely purchased for standard doors, then the following mechanisms have specific dimensions and can only be suitable for a specific design or one manufacturer. Therefore, always pay attention to the "cylinder" specification before choosing a cylinder.

The most striking example of originality is the products of the Turkish company Kale Kilit. Their locks are highly reliable, but are only suitable for mechanisms of the same type. Some competent craftsmen can convert a Chinese lock into a cylinder from Kale Kilit, thereby obtaining a significantly reduced cost of the mechanism.

Domestic castles

Domestic producers do not lag behind imported ones, although prices for similar quality are sometimes higher than Turkish ones. Kirov cylinders with a cross key have proven themselves to be excellent, and just as in the previous case, a domestic mechanism cannot be inserted into an imported case and vice versa.

Before choosing a cylinder, you should take into account that for some domestic mechanisms you can purchase a “cylinder” separately. A striking example- the frequently broken Fort mechanism, which is produced in Petrozavodsk. The obvious cheapness of the design has its undeniable disadvantages: the security mechanisms, together with the main components of the cylinder, are made of waste and fragile silumin alloy, hence the frequency of breakdowns, and at the same time the opportunity to buy a new cylinder assembly (good

Other domestic mechanisms like “Glazov” and “Iset” suffer from similar problems: the materials are too fragile, coupled with low quality products. But, unlike Kirov locks, specific cylinders are not sold separately by factories, so you have to order them in China.

Secret

In most cases, the cylinder is the weakest link in the locking mechanism. Attackers break them, drill them out, or simply pick up a master key, so a reliable lock secret is the main obstacle to this kind of attempt. You need to choose the mechanism wisely and there is no point in saving on the cylinder. Let's look at the main hacking methods and how to avoid them.

Selection of master keys. A smart manufacturer always equips its mechanisms with false grooves, significantly complicating the process of selecting a key.

Bumping. The method is based on brute force: any suitable key into the well, then it is hit with a hammer. The pins and pins come apart and the mechanism is no longer useful. In this case, high-strength cylinder material and a non-standard well help.

Drilling. The only protection against this type of hacking is reinforced alloys and metals that cannot be drilled.

Knocking out. The main protection is again the materials from which the cylinder is made. The best option- these are carbide elements that do not bend, do not crumble and reliably protect against this type of hacking.

Summarizing

When choosing a cylinder for a lock, you should never save money. Good materials They are not cheap, so a junk Chinese design for 300-500 rubles will not save you even from an amateur scammer. It is also worth considering factors such as the durability of the mechanism, design and ease of operation. If you have children in your family to whom you entrust the key, then the lock should not be an obstacle to quickly getting home. Be sure to take this point into account. Sometimes, in pursuit of anti-burglary mechanisms, people forget about such obvious things as ease of use, and suffer with inconvenient keys and tricky locks. Therefore, this factor must also be taken into account.

Do you need a lock cylinder? Then you have come to the right place, contact our store, our consultants will help you make the right choice for favorable conditions. The lock cylinder plays an important role for the door structure, because it allows you to reliably protect the door structure from unauthorized entry into the room. In addition, high-quality lock cylinders greatly facilitate the use of doors.

Variety of models on the market

Available on the market a wide range of There are a variety of cylinders for doors, but not all of them are made with high quality; many manufacturers use unreliable materials and outdated technologies. Therefore, the choice of a cylinder for a lock with a pinwheel must be taken seriously. All of our products are manufactured using modern equipment and durable elements, which guarantees excellent reliability and durability in use. You can buy a lock cylinder in a store quickly and profitably. The main advantages of our larvae:

• Tested, certified products famous brands
• Wide choice for every type of door
• Relatively low cost.
• Functionality and reliability.
• Delivery postal services to any corner of the country



The cylinder for the front door lock is a structural element that is selected based on several parameters; we recommend that you pay special attention. It is recommended to buy larvae from manufacturers who have passed the certification procedure. This guarantees quality; such larvae are reliable and practical to use. The locking mechanism will last a long time without replacement. Pay attention to what the lock cylinders are made of. The materials used in the manufacture of these elements are subject to increased requirements for reliability and strength. Therefore, the higher the quality of the material from which the cylinder mechanism is made, the more reliable the lock will be.

How to order

In our online store you can choose from the catalog suitable model, add to cart and buy a lock cylinder for any type of door, wooden or metal, from the presented range of products. The simple and intuitive interface of the site greatly facilitates the selection and subsequent purchase. We offer products from such famous brands. We have larvae from APECS, CALE KILIT, CISA, AVERS, Mottura, and other European and Asian manufacturers. There are many models of larvae with turntables, symmetrical and reversible mechanisms of different security classes, and resistance to burglary in accordance with Russian and European standards. By contacting us to purchase a cylinder mechanism with a turntable, you are making the right choice.

The reliability of the front door depends on locking mechanisms, and this is due, first of all, to the secrecy of the lock itself, its design and reliability. Therefore, we can say with confidence that the lock cylinder performs the main function of protecting the premises. And although lever products do not contain it, not a single cylinder mechanism can do without it. We will talk about what a larva is and what types it comes in in the article.

Lock cylinders

Description of the larva

As mentioned above, the lock cylinder, or core, is found only in cylinder products. Its structure is simple: split pins are installed inside, to which special springs are attached. They prevent the entire mechanism from rotating if someone else's key is inserted into the keyhole. If you use the original key, then under its action the pins are lifted, which allows you to install their connectors flush with the core. This action moves the deadbolt, allowing it to unlock and lock the lock.

The grooves on the key look like wedges and are involved in unlocking locking device. The core of the lock and the keys are similar to each other, but the similarity is only external, since the secret mechanism is very different.

In addition to the core, any locking mechanism has a special device that locks the door leaf. They are called crossbars, or deadbolts. This can be seen in detail in the diagram presented.

Larvae and their types

Secret mechanism for entrance doors has several difficulty classes. They are one- or two-sided. The first type of device is characterized by a cylinder in the door lock, which can only be opened unilaterally. In the second case, the lock cylinder is unlocked from both the inside and the outside. outside, this is done with a key, and with the other - a handle.

The mechanism may have several pairs of return springs. Spring-loaded pins come in several types:

• codes with which the key interacts;
• locking, have locking mechanisms.

Based on the location of the lock cylinder, there are several types:

• Double-row and single-row mechanisms.
• Three- and four-row.
• With conical arrangement.
• With rotating pins.

Based on the type of mechanism, the lock cylinder can be:

• Secret with a disk mechanism.

• Secret with a cross-shaped pin.

• A cylinder with a pin mechanism.

It is important! The latest model can have several configurations: electronic cylinder or magnetic.

As an example, here are several privacy mechanisms with 9 or more pins:

• NK mechanism, lock cylinder 120 mm (60x60).
• NDT device, 60 mm (30x30).
• Product NK for 70 mm (30x40).
• NDT device for 70 mm (40x30).
• Product DF 70 mm (40x30).
• Product XD 70 mm (13 pins).

The main models of mechanisms have a cylinder size of 60 mm, and the Italian-made secrets have a size of 70 mm.

The cylinder in the door lock of the front door can have several levels of secrecy:

• low when the castle has 10 thousand options;
• medium, when there are 50 thousand options;
• highest, when the castle has more than 100 thousand options.

Cylindrical larvae

To open a cylinder lock, you need a key with special teeth. various shapes and sizes. It can be presented in the form of a mortise lock or a padlock.

This mechanism is produced in two standards - DIN or RIM. And if the second type is quite rare, then the first option is found everywhere.

It is important! If, when replacing a cylinder, you are worried whether it will fit the lock, if it is from a different manufacturer, then you can rest assured, they are interchangeable.

The larva is selected depending on several factors:

• door thickness,
• location of the fastening screw.

Lock cylinders can be divided into several types:

• Single-sided cylinder mechanisms with a latch (turnkey). The lock cylinder is unlocked from the outside using a key, and from the inside using a turntable. The design of such a product includes a cam mechanism, due to which the crossbars rotate.
• Double-sided lock (key-key). When the locking mechanism is opened from both sides using a key. Such products are useful for families with children; if you close the door and remove the key, then open it with inside it is impossible without it, so small children are unlikely to be able to leave the apartment without permission. In addition, if you leave the key in the keyhole after closing the door, you will not be able to open the door from the other side.
• A one-way product in which the door can only be opened from the outside and only with a key.
• A device with a gear, in which the key interacts with the bolt through the gear.

Disc larvae

Such a device contains movable disks. When the key is rotated, they become at a certain angle, while ensuring the release of the mechanism due to rotation.

The key for such a lock is characterized by a semicircular cross-section, on which there are several recesses that will correspond to the installed disks in the mechanism. main feature Such a mechanism can be replaced with a disk device of the same type.

Cross-shaped, pin cylinders and high security cylinders

The cross-shaped cylinders for the lock contain pins, which, when the key is rotated, become along its four edges. Such devices have a large number of secret combinations, but this does not help to effectively protect the premises, since most mechanisms can be hacked with a screwdriver.

To replace the cylinder of such a lock, you will have to tinker, since you will have to disassemble the lock. Therefore, most experts are inclined to replace the lock.

Secrets for pin locks are produced according to two standards, as a result of which they have two types of keys:

• English.
• Perforated.

The first type does not cope well with its direct task. There is no need to talk about its secrecy and reliability. The second version of the larva is more reliable, although it can be drilled or knocked out, but this requires additional time and noise, which is undesirable for burglars.

Progress does not stand still, this also affected the larvae for locking mechanisms, which are being improved every day. Their manufacturers are constantly increasing the level of secrecy of their products, which ensures the safety and security of property and premises.

Every year the secret arsenal of larvae is replenished new protection, among which they note:

• armor inserts;
• body made of titanium alloys;
• a large number of security combinations (more than a million);
• pins made of durable and refractory metals;
• floating elements on keys.

To find a suitable key for such a mechanism, you will have to spend a lot of time and effort, which is not in any way included in the plans of the robbers. If necessary, you can replace the larva, although its cost prevents such actions.

Lock cylinder with pinwheel

Now let's talk about the cylinder for the pinwheel lock. The main goal of such a mechanism is ease of use, which is achieved thanks to the turntable. If you have such a lock, then you can open and close the door from the inside without a key. In addition, the turntable has no dead spots, so you can always open the door leaf from the outside.

This is what a Chinese 60 mm cylinder type mechanism looks like, with a pinwheel mounted on the inside

How to choose a larva

If you had to choose a lock cylinder, then you need to know how to choose it correctly and what to pay attention to?

The choice of cylinder for a lock should take into account several aspects:

• Size. When choosing a lock, pay attention to the size; it must exactly match the previous mechanism, otherwise you will not be able to install it. If, instead of replacing the cylinder, a decision was made to completely replace the lock, then it is necessary to pay attention to the thickness of the door, since the length of the cylinder depends on this.
• Cost and country of origin. This fact must be taken into account when you choose cylinders for door locks.
• Model and configuration. Remember that the distance between the end part and the hole should not differ from the previous locking device.
• Keys. The larva is usually equipped with a set of keys; experts advise choosing the model that has the required number of keys for your family.
• Product color. Usually they choose a cylinder that matches the design of the castle.

But the main thing that is worth checking when purchasing such a mechanism is its performance. Try turning the key in one direction and the other several times. How does this happen, does the key jam, does it catch something inside, how is it removed from the keyhole?

Repair of larvae

There are several reasons why a lock needs to be repaired. This can happen due to wear and tear on the internal elements, after a break-in attempt, or after unsuccessful attempts to open the door with someone else's key. It is possible that the lock cylinder can be repaired for other reasons; no one can rule out a manufacturing defect either.

In addition, you may experience sagging of the door leaf, which will sooner or later lead to a breakdown of the mechanism. But the most common reason for which a larva needs to be replaced is

There may be several reasons for this. This can happen due to wear and tear on the internal elements, after a break-in attempt, or after unsuccessful attempts to open the door with someone else's key. It is possible that the lock cylinder can be repaired for other reasons; no one can rule out a manufacturing defect either.

In addition, you may experience sagging of the door leaf, which will sooner or later lead to a breakdown of the mechanism. But the most common reason that requires replacement of the cylinder is the loss of keys.

Usually you can change the lock cylinder yourself or invite professionals to do this, because the work is not the easiest. But first you need to assess the situation soberly: is there any reason to repair it? Perhaps it would be more advisable to replace the lock? By answering these questions, you will accept correct solution and determine the phasing of further actions.

The working part of the lock is the cylinder, also known as the CMS (cylinder security mechanism). Actually, this is the lock cylinder of the corresponding system itself. Often, a lock breakdown comes down to a malfunction of the cylinder, and you can limit yourself to replacing it. What types of lock cylinders are there? metal doors and how to choose the right one?

Lock cylinder design

The cylinder for a mortise lock consists of a cylinder with grooves. The grooves contain spring-loaded plates. The key (a metal blank with grooves) presses the plates. The cylinder rotates and drives the crossbar mechanism. The door closes (or opens, depending on the direction of rotation).

There are many versions of this basic design. Pins (pins, plates) can be positioned horizontally, vertically, or at an angle. Their number varies (it determines the level of secrecy), from two to thirty. There are double pins (one inside the other), magnetic, floating, etc. The grooves on the key are cut for a specific cylinder (i.e. required quantity pins taking into account their location).

The more complex the door lock cylinder (the design and the higher the secrecy), the more difficult it is for a burglar to open the door in an intelligent way.

Basic parameters of larvae

1. Cylinder length.

2. Displacement of the cam relative to the middle. Cylinders can be scalene or equilateral. In the latter, the cam is located strictly in the middle, in the former it is shifted to the side.

3. Presence/absence of a turntable. The cylinder with a pinwheel is more convenient: the door can be locked from the inside without a key.

4. Secrecy mechanism.

There are three levels of secrecy:

Important: when choosing door cylinders you need to be especially careful. Usually the mechanism is suitable only for its own lock model, and less often - for several models of the same manufacturer.

Low – up to 5 thousand combinations;

Average – up to a million;

High – up to 4 million.

Types of larvae

Door lock cylinders have features depending on which door the lock is installed on.

For entrance metal doors they are most often used mortise locks(they are installed in the end part of the canvases). Sometimes their variety is inset (almost the same, only without the front panel). Inset locks are more often used as auxiliary locks, as well as for internal locking (cylinder with a pinwheel). The cylinder cylinder for the lock (mortise) is located in its body.

For wooden entrance doors (and for interior doors too) both mortise and rim locks can be used. For overhead locks, the cylinder is attached to the lock cover or directly to the door.

Popular lock cylinders with a pinwheel and those designed to be unlocked with a key on both sides.

Manufacturers and price

1. The price for a lock cylinder for Mottura (Italy) starts from 7 thousand.

2. Mul-t-lock (Israel) – from 5 thousand.

3. Lock cylinder Cisa (Italy) – from 8 thousand rubles.

4. Kale (Türkiye) – from two thousand.

5. Apecs (China) – from 600 rubles.

Undoubtedly, modern castles– this is reliable protection for your home. But in reality it is not always sufficient. For complete security, we recommend that you also install a security system. Such a system, together with good locks, guarantees you one hundred percent confidence and safety. To install such a system, it is best to turn to professionals. We recommend paying attention to the company MK KRONA. Security systems– their main profile. You can find out all the information in the apartment security section.

Video “Replacing the door lock cylinder”:

When choosing cylinders for metal door locks, it is better to give preference to models with increased security. Indeed, nowadays it is possible to pick a regular lock in less than a minute.