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Manufacturers of steel doors. The market of steel doors

Manufacturers of steel doors. The market of steel doors At the present time the market steel doors has developed quite favorable, and at the same time a difficult situation for the consumer: a plurality of vendors offering products of domestic and foreign manufacturers to suit all tastes. Large price range, variety of variants and protective properties, a wide range of related services. This diversity requires the buyer additional knowledge to properly evaluate the proposed goods. Unfortunately, there are many opportunities for fraud are not very knowledgeable buyer. On the other hand, sometimes the buyer himself provokes merchants and manufacturers of steel doors   on the notoriously foul play, denying the axiom that quality items and service can not be cheap. At this point of view may be two reasons: the objective - the financial capacity of the buyer and the subjective, based on outdated views and assessment systems. Together, they are the main obstacle to the development market of steel doors . In this situation, it seems to us, a manufacturer of steel doors , are not interested in short-term excess profits, and in promoting the good image of the product and maintaining its brand, to focus on honest and professional advice for buyers of their product. This product offered by the manufacturer must have the highest quality at a given price. Now, more than ever, it is important to bring to the customer the idea that " we are not so rich to buy cheap things ". Guided by these considerations, we offer an overview of the main door designs on the market to assist the future buyer.

Despite the simplicity of the door is a mechanism in which each element plays an important role, and the web, and locking system, and a box, and a filler, and appearance - all of them in the complex shape of the product is formed, which we appreciate.

Thus, the canvas. The most common today is the frame technology of manufacturing fabric. There are two basic types of scaffolds: manufactured by rolled mild steel or forged on the basis of thin profiles. The advantages include good first-bearing capacity and impact resistance, and the advantages of the second - the spatial rigidity and lightness. The quality and the durability of web in both cases is dependent on the quality of raw materials, processing and assembly. Sheathe frames metal sheets on both sides. It is necessary to pay special attention to the thickness of the outer sheet. It protects the entire locking system, being an obstacle to cutting tools and instruments, and should not be too thin. The bulk of the external doors are fitted with sheets up to 1.5, rarely up to 2.0 mm. Only on some models of their thickness reaches 4.0 mm. The outer sheet form and closed the door, providing tightness. If you do not want to know what your neighbor smokes, you should pay attention to the fit fabric to the frame and the quality of the seal around the perimeter.

In any door element for its operation, a locking system and its heart - the castle, the most responsible and vulnerable link. Competently hacked, it provides an opportunity to open the door almost unhindered. Using this, attackers, in most cases, begin their " work " It was with locks. It is believed that with the help of master keys open locks predominantly lever (vault) type. This is true with respect to the most primitive models. Three- and chetyrehoborotnye lever locks open the master key is virtually impossible. Selection of a duplicate or master key completely useless at opening locks with security enhanced radial cylinder (flat with the PIN-code). This, for example, cylinders companies such as CISA, Vachette, Winkhouse, Mul-T-Lock, and others. In turn, the increased secrecy succumb to simple devices such as drills and sledgehammers. If the door is equipped with a cylinder lock, the domain cylinders must be protected on both sides by special bronenakladkami: against drilling outside, inside - against knocking. Today it is the best option of protection. As one of the ways to strengthen the castle, making it " tough nut to crack ", is a combination of lever and cylinder mechanism in the same housing (some models ISEO and the like). At the same time, however, increases the number of keys in the bundle. There are exotic ways - masking the lock of the door leaf in the cavity, does not allow one to calculate its location.

The continuation of the lock system are locking deadbolts or locking pins. They provide for a locking door frame in the closed position. From the quality of their manufacturing and reliability depends on how long the door will resist the attackers, and there is always the owner of the apartments will be able to open the door with his key. Crossbars are moving (active) and static (passive). Argued that the more crossbars and thicker than they are, the more reliable the door. This is not entirely true. Each additional bolt is meaningless since when the door is easier to break down the wall than from the frame. In all important measure. The most reliable and durable and are self-cleaning disc flowlines crossbars. At sliding crossbars there is one drawback - to complete the work locking system must be an exact match axes crossbar and his mate in the frame. Perform this condition often does not allow deformation constructions that occur over time. To avoid jamming the doors, the diameter of mates are doing with a margin greater than the diameter or cross-bars installed in mates collapsible plastic " cups ", enabling play.

An important role in the design of the door take the loop. They are responsible for the ergonomics and the reliability of the door. The most common conventional outer loop. They worked well in the doorway light type 60-70 kg. With increasing web weight, the load on the hinge and wear are significantly increased. In this case, the outer loop design with reinforced bearings or hardier concealed hinge axis with bearings and persistent adjusting balls. For proper operation and long doors The number of loops must not exceed two, and the distance between them should be the maximum. Under no circumstances will the loop can not be the main passive bolt - in the case of cutting of opening doors much easier.

A few words on the door frames. They differ from each other, from any type of profile, and are made as a set in the opening, or at any place only vnakladku outside. For reliability, both of these methods are virtually identical, if a sufficient number of anchors, and they are positioned correctly - the entire perimeter, at least two per side. If we talk about breaking out the doors of the wall, then, in our opinion, more reliable installation of the frame in the middle of the opening. When mounting the door the main parameter is the size of the frame. Doors manufactured on production lines are standardized, fixed with a certain step or standardized sizes. This often leads to the need to change the size of the opening. Individual door is manufactured with the use of established technologies and are harvested by hand, are more expensive, but can be almost any size at the opening.

Last but not least in conjunction with other selection criteria is finishing. Here, as they say, " the taste and color. The buyer is free to choose the door in accordance with their preferences. Fortunately the choice is so great that you can pick up just about any version of unpretentious plastic to wooden layouts, glass or stainless steel noble. We believe that the appearance of any product should not be " just ", and reflect its function, carry the semantic content, so prefer to decorate their doors in a simple style Hi-Tech, showing the work of a " live " steel.

If you are going to buy a steel door, one has to first of all ask ourselves the question: " Why do I need a steel door ". Surely, most answer that steel door they need for their own safety and to protect the apartments. This motif of purchase determines the degree of responsibility of the buyer to himself. Sometimes a cheap door can bring more expenses than once bought a more expensive, but quality. Select the door should not only in appearance, but above all, for the technical equipment. Apartment doors are not subject to mandatory certification as a means of protection. However, if the producer declares special protective features provided by the GOST, the presence of the certificate - the only proof of the truth of his words. Also, special attention should be paid to the conditions of warranty and service.

Finally. Acquiring a reliable door, do not flatter yourself. Almost any door can be opened for 20-30 minutes, so the anti-burglar important to limit his time to " work ". Set additional alarms, and you can be assured of the peace as long as technical progress does not teach an attacker to bypass it.

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