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The common methods of unlocking a marble lock are as follows: 1. Hit the key, insert the corresponding tool at the place where the marble is lowered, and hit it upward with force. At this time, the lower marble will hit the marble, causing separation between the two; First, use the wrench to rotate the lock cylinder, and cooperate with the needle-shaped unlocker to push the marble upwards. When the marble reaches the highest point, it will deflect a little, and then twist the wrench to open the lock. 1. Hit the spoon It is relatively simple to use this method, and even if you do not have special training, you can easily open the ordinary marble lock. First, prepare a tool, insert the tool into the place where the marble is placed, and then hit it hard. When the marble is thrown upward, the marble lock can be unlocked in an instant. In order to prevent the lock from being easily opened, manufacturers now have another lock cylinder in the production of ordinary marble locks, which can ensure safety. 2. Unlocker and wrench First find the lock cylinder of the marble lock, and then rotate the lock cylinder with the torque wrench. Under the action of external force, the lock spring and the marble will be pushed up. When the marble is pushed to a certain height, the lock cylinder will be slightly biased. Of course, if there is a slight offset, the marbles cannot be fully opened. When the heights of the marbles are all aligned, the marble locks can be easily opened with a torque wrench. In order to reduce the unlocking time, a lot of force is required when pushing up. 3. How to choose a marble lock When buying a marble lock, first look at the brand. Generally, the higher the brand, the higher the security level. Don't be fooled by the merchant when purchasing. You can ask the merchant to show the test certificate to ensure that there is no problem. When there is a certificate and it is In the case of the brand, it is more assured to buy it back and use it. 4. When buying an electronic lock, you can look at the tooth flower on the key. In fact, it is similar to human teeth. If there are more teeth, and the teeth are deeper and the arrangement order is more complicated, the higher the safety factor, the higher the anti-theft performance. The more superior it is, it cannot be opened at will by corresponding tools. 5. When buying a marble lock, you should look at the appearance of the lock. If the color is uniform, the outer plating treatment is superior, and it is smooth and flat, which means that the product quality is guaranteed. If the color of the marble lock is dark yellow, the cable core is generally stronger, and the harder the lock core, the better the anti-theft performance. If the color of the marble lock is gray and white, it means that the lock cylinder may be zinc alloy, which means that the anti-theft performance is average and the safety factor is not very high. 5. When buying an electronic lock, you can test it on the spot, insert the key into the lock, and see how the lock cylinder feels when it is used. If the lock cylinder is stuck during use, it means that the quality of the marble lock is average, and it is not recommended for everyone Buy. Andja produces excellent quality locks, And we accept customization. For more information about Andja's products, contact your Andja representative or call 18962195537

The principle of the magnetic lock is the same as that of the electromagnet. It is the principle of using electro-magnetic and then the opposite pole attracting. When the current passes through the silicon steel plate, the electromagnetic lock will generate a strong suction force to hold the adsorbed iron plate tightly to reach the door. effect. As long as the small current electromagnetic lock will generate great magnetic force, the access control system that controls the electromagnetic lock power supply will identify the personnel and then turn off the power, and the electromagnetic lock will lose its suction to open the door. Because the electromagnetic lock has no complicated mechanical structure and the structure of the bolt, it is suitable for the access control of the escape door or the fire door. Its interior is protected by epoxy resin. At present, the suction strength of the electromagnetic lock is represented by LB (pounds), and the test method is static pressurization. The so-called static pressure is the electromagnetic lock gradually increases the tension on the adsorption iron plate after the energization, when the electromagnetic lock's suction exceeds the moment when the absorption of iron plate, the tensile force data is the value of the electromagnetic lock pull. In addition, the force of the electromagnetic lock and the adsorption iron plate must be face-to-face and linear pressure, so that the suction force of the electromagnetic lock is the largest. Adsorption iron plates may be magnetized for a short period of time due to the magnetic induction of the electromagnet for a long time. The electric plug lock is an electronic control lock, and the function of locking or opening the door is achieved through the opening and retraction of the [tongue" through the on-off of the current. Usually the electrical latch consists of two main parts: the lock body and the keyhole. The key component in the lock body is the "lock tongue", and the "keyhole" cooperation can realize the "closed door" and "open door" two states. That is, the lock tongue is inserted into the lock hole to close the door, and the lock tongue leaves the lock hole to open the door. It is because of the retractable function of the tongue that the name of the [electric plug" is awarded. It is also because of this feature that electrical plug locks are often used for various swing doors (two-way opening). At the same time, the characteristics of its [hidden" installation are more suitable for places where the confidentiality of the lock body is relatively high. The design of the magnetic lock is the same as that of the electromagnet. When the electric current passes through the silicon steel plate, the electromagnetic lock will generate a strong suction force to firmly attract the adsorption iron plate to achieve the effect of locking the door. As long as the small current electromagnetic lock will generate great magnetic force, the access control system that controls the electromagnetic lock power supply will identify the personnel and then turn off the power, and the electromagnetic lock will lose its suction to open the door. The output of the signal output between the card and the magnetic lock and the electric lock. Usually the signal transmission way between them is through, RS422, RS485, RS232 several kinds of commonly used data transmission ways, among them RS422 is the duplex data transmission way. Transferred outside. Transmission data is generally odd. 3-wire and 5-wire signal lines are used for wiring. In the door sill system, it is connected with magnetic lock or electric lock signal sensing. Andja produces excellent quality locks, And we accept customization. For more information about Andja's products, contact your Andja representative or call 18962195537

A good lock to protect the whole family, if you buy a bad lock minutes is dangerous! Therefore, when the door lock is purchased, the type of the lock cylinder is a headache. There is a blade lock on the market now. What lock is this? Is the blade lock cylinder safe? What is its principle? Let's take a look at this popular science. Is the blade lock core safe? For the blade lock cylinder, this is the safest lock cylinder at present. It has higher anti-theft performance than the AB lock core because it adds an additional slot on the basis of the AB lock double-sided double-row marble, and it adopts The structure of the side column lock is that the top of the lock is on the side. The focus of the general shackles is two points above and below. In the test of the public security department, such a lock cylinder requires about 270 minutes to open the technology. This is the most basic difference between the blade lock cylinder and the AB lock cylinder. Security door lock core level The principle of the blade lock is to use a tooth with a different angle of the bevel on the key to rotate and align the blade with different angle changes in the lock core, thereby realizing a lock in which the lock cylinder is rotated and opened. The blade lock is a kind of lock product which is completely different from the traditional mechanical lock and has relatively high safety performance. The principle of the blade lock is to use the teeth with different angles of the bevel on the key to rotate and align the blades with different angle changes in the lock core. A kind of lock that the lock cylinder rotates open; but the blade lock is in the working process, and the principle of its specific work is not so simple. What is the working process and principle of the blade lock? 1. When the key is inserted into the lock cylinder, if all the key teeth on the key match the step difference of the blade, the notch on all the leaves in the lock core forms a straight groove, and the movable pin in the lock core acts under the elastic force. Will fall into the trough, the movable pin in the middle shell will also fall, the part of the trough which is taken out of the outer casing slides into the vane groove in the lock core. At this time, the key is turned, the key will drive the lock core, and the lock core drives the middle shell. Rotating together, the transmission structure of the middle casing is also rotated at the same time, the door lock can be opened and closed; 2. If one or several of the key teeth on the key do not match the step difference of the blade, the notch on the blade inside the lock core will not form a straight groove, and the movable pin in the lock core will not fall into the groove. Inside, the movable pin in the middle shell is caught by the movable pin in the lock core and cannot be removed from the tank body in the outer casing, so the middle shell is connected to the outer casing and does not rotate, and the movable pin in the middle shell does not fall. In the blade slot in the input core, the middle case is separated from the lock core. At this time, the key is rotated, only the lock core rotates, and the middle case does not rotate, so that the door lock can not be switched. 3. If other foreign objects are inserted into the lock cylinder, it is difficult to encounter the opportunity to match the level difference between the lock core and the blade. Therefore, the result can only be that the lock cylinder rotates, the middle shell does not rotate, and the door lock cannot be opened. Please pay attention to the direction of insertion of the key when using it: the key handle must be vertical, and the raised dot on the key handle (the key is correctly inserted into the direction mark) above can be inserted into the keyhole. After confirming that the key has been fully inserted, turn the key clockwise to unlock it. Never open the key when the key is not inserted, forcibly unlocking the key, causing the key to die in the lock cylinder and unplugging or twisting the key. The key cannot be pulled out during the rotation. Only when the key is turned counterclockwise, the key can be pulled out. Andja produces excellent quality locks, And we accept customization. For more information about Andja's products, contact your Andja representative or call 18962195537

The so-called single lock and double lock actually refer to the locks of the external locks, which are two different types of external locks; and the external locks are used for the outer doors of buildings, the outer doors or hall doors of each house. A type of lock product; the application of the external lock is still quite extensive, but what is the working principle of the single lock and the double lock in the lock? What is the difference between the two? Single lock: This type of lock is opened with a key outside the door, and the door is opened with a handle (or knob). It has strong confidentiality outside the door, easy operation inside the door, no need for a key, and is especially suitable for use in emergency situations such as fire prevention. Double lock: The door and the door are opened with a key, so its confidentiality is higher than that of a single lock. The thief can't open without a key after entering the house. In addition, most of them also have a defense function, as long as there is no key to indent the lock tongue, use General tools such as screwdrivers, pliers, and hammers cannot remove the lock. However, it is unfortunate that there is no single lock in the emergency operation, and it is easy to cause errors in the busy operation. In the double lock, since the lock tongue is in the vertical direction, the lock tongue is generally cylindrical, and the lock tongue is extended or contracted. In general, the key or knob (or handle) is used, so the self-collision and non-self-collision functions are formed in the structure of the lock tongue. The difference between them is: 1. Self-touch function: There is a slope on the cylinder lock tongue. As long as the lock body and the lock plate meet, the lock tongue will be hooked. It is commonly called self-touch. At this time, the key must be used to open the door. Use the screw (or handle) or the key to lock or open; the self-touch function lock body usually has a safety button. When the door needs to be covered and not locked, the safety button must be locked to make the lock surface The oblique tongue does not extend, the door can be freely opened and closed, and the door does not have a key. It is impossible to open the door. 2, non-self-touch function: the cylinder lock tongue does not have a slope, when only the lock tongue is retracted, the door can be closed, and then locked with a knob (or handle) or a key, when the lock tongue is extended, the door However, it cannot be turned off. The lock generally does not have a safety button. The door needs to be switched with a key, and the door is closed with a knob (or handle) or a key. Since the single lock and the double lock of the external lock have their own advantages and disadvantages, it is better for the consumer to purchase according to the actual needs when purchasing, to ensure the safety performance of the external lock in the home. More importantly, it is easy to use. Andja produces excellent quality locks, And we accept customization. For more information about Andja's products, contact your Andja representative or call 18962195537

Currently, there are two types of locks sold on the market. One type is traditional mechanical locks that are currently installed and used by current households, and the other type is electronic locks currently used in hotels and enterprises. Mechanical locks are only cheaper than twenty or thirty yuan, and the most expensive ones do not exceed one thousand yuan. Compared to the price of electronic locks of up to 8,000 yuan, mechanical locks have become the preferred locks for the general public because of their low price and ease of use; electronic locks are now commonly used in hotels, institutions, business enterprises and high-end intelligent real estate support. Since the traditional mechanical lock is opened with a key, the lock body must have a keyhole, and since the lock has been established, the gentleman on the beam can use a certain tool and skill to easily open the lock, especially in today's world, a variety of advanced ** ** The endless stream of unlocking technology is even more exciting. According to the information provided by the Public Security Bureau's Special Industry Management Office, general thieves and unlocking personnel can open all mechanical locks within 3 minutes, and a technically smart three seconds can open the locks. It is shocking! Although electronic locks adopt some high-tech technologies, such as biometric fingerprint recognition technology, electronic passwords, and voice-activated sensing, they have improved a lot in safety performance compared to ordinary mechanical locks. However, due to the inability of electronic systems to guarantee continuous stability in daily use, manufacturers When designing the electronic lock, a mechanical lock system is also added as a backup. The mechanical spare must reserve a key and a keyhole. It is usually hidden with a LOGO cover. Once the electronic system fails, it can be opened with a spare key. Mechanical locks, but with the thief into the time, will use this usually hidden keyhole for plagiarism! It is understood that more than 90% of locks in China's lock industry are facing market elimination due to potential safety hazards. A new type of high-tech lock that combines the double safety functions of mechanical locks and electronic locks will become the new darling of the lock industry instead of smart anti-riot locks. In the smart home situation, the emergence of smart locks is not just a voice, but the real needs of the market. Andja produces excellent quality locks, And we accept customization. For more information about Andja's products, contact your Andja representative or call 18962195537

In the market, zinc alloy and stainless steel lock surface treatment color is very close, often the salesperson misleads customers, such as "zinc alloy nickel-plated brushed color, only tell the customer is drawing, not to mention the material does not say color", resulting in customers to buy The zinc alloy lock is also thought to be a stainless steel lock. Therefore, when buying a lock, please ask the customer's friends to identify it carefully, or you can refer to the following methods to identify: Zinc alloy lock Method 1, the same volume of stainless steel lock weight than zinc alloy lock, can be clearly felt from the hand. Method 2, scratching method. Use a sharp knife or a sharp knife to scratch the back side of the panel, hard and difficult to draw and the same color inside and outside the mark is stainless steel lock, soft and easy to draw silver white is a zinc alloy lock. Method 3, the method of identifying the top mark. The stainless steel lock material is hard. When the panel is out, there is no positioning support hole distributed in the center line position of the inner surface of the panel; the zinc alloy material is soft, and 4-8 positioning support holes are distributed on the periphery and the center of the inner surface of the panel when the panel is out. Stainless steel lock Method 4, visual method, by visually identifying the surface difference between the two materials, the stainless steel lock is more natural, delicate and delicate, and the texture is warmer than the zinc alloy, and the brilliant texture is presented under the illumination of the light. Method 5, look for the brand, shop around. Andja produces excellent quality locks, And we accept customization. For more information about Andja's products, contact your Andja representative or call 18962195537

1, Confirm the door lock status: Confirm that the installation conditions on the site meet the installation requirements. For example: Is there a power source? Is there a special person? Whether the renovation is completed, etc. See the Admission Confirmation for details. Center distance confirmation: There are two kinds of center distance: 55mm 70mm Note: The center distance is from the door frame to the handle rotation axis center distance door lock thickness: door lock thickness requirement: 38mm-55mm special requirements according to special requirements. (The thickness of the door lock is different. The lock cylinder, lock fixing screw length and punching requirements of the door lock are different. Please explain to the manufacturer when ordering.) The left and right opening of the door lock is confirmed: the door has left and right opening points, the corresponding door lock also has left and right opening points. When ordering, it should be stated that the door should be opened during installation. Unidirectional door locks. Left door lock definition: The person stands outside the door, the door opens inward, the hinge is on the left, and the door is left open. Right open door lock definition: Same as above, the hinge is on the right side, and the right door is open. 2, the installation of the door lock Draw a hole: Line the front, back and side of the door according to the hole pattern provided by the factory. (See the specific drawings for the specific hole drawing) Draw the front opening line of the door: Determine the installation height of the door lock. The height of the handle position is 90CM from the bottom of the door. (The old door is modified, then the door is still the same.) Open the back line of the door: Draw a line on the back of the door in the same way as above. Draw the side opening line of the door: first draw the center of the side of the door, press the opening line on the side of the door for punching. Draw the opening line of the door frame: After installing the lock core, open the opening line of the door frame according to the corresponding position of the lock core (according to the opening hole drawing) The opening of the door frame must pay attention to the height of the corresponding lock cylinder 3, open the door 1). Open the front and back holes according to the drawn hole. Note: When opening the hole, prevent the wood fiber from being burred (it is best to cut the fiber along the opening line with a cutter) to prevent the opening from being too large. 2). Open the side hole by drawing the opening line. Note: The side door lock is one of the most critical aspects of opening. Be careful to open the hole to prevent the fiber from flashing and prevent the opening from being too large and rough. After opening the hole, check it with the lock cylinder. If it is not suitable, correct it accordingly. 3). Open the door frame door according to the drawn hole line. Note: The hole size of the door frame is required to be high, to prevent the virtual position, and the door lock is shaken. (See the hole punching map for details) 4, door lock After opening the package, first check whether the door lock parts are complete, whether the direction is the same as the room, and use the battery to test whether the computer lock core and the circuit board are working properly, and then start to install the door lock: 1). Install the lock cylinder: Install the lock cylinder into the door panel, and the connector head penetrates into the inner panel. All the fixing holes meet the requirements. 2). Install the mechanical lock: Install the mechanical lock into the lock cylinder and fix it with screws to check if the mechanical key can open the door. 3). Install the front lock body: adjust the four-corner sleeve of the lock cylinder to the correct position (the square hole and the spring are marked on the inner hole of the four-corner sleeve), and insert the front lock body into the door panel. Note: The circuit board cannot be hard-mounted, the circuit board is damaged and the patch cord is broken. 4). After the lock body is installed: the same as the front lock body, after the lock body is installed, the upper set screw. Note: Before and after installation, the lock body should be parallel to the door, and the left and right distances should not be adjusted to make the handle and the horizontal direction of the lock cylinder consistent. Adjust the up and down distance to keep the handle in line with the vertical direction of the lock cylinder. 5). Install the battery box: Install the battery and the battery box in the corresponding position; connect the wire plug and try to open it with the opening card. 6). Mounting side fixing plate: According to the installed lock core, the door frame hole is installed, and the plastic box and the side fixing plate are installed. Note: Adjustment of position. 7). Debugging and opening the door, preliminary configuration of the door lock: with the opening of the card can open the door lock (various types of opening the door card) mechanical key can open the door. 5 equipped with smart door lock . 1. The door lock is installed normally. The combination of the oblique tongue and the oblique tongue should pop out freely. The square tongue should be able to extend smoothly. The mechanical key can open the door normally. 2. The most common problems after the door lock is installed: A, the combination of the door lock oblique tongue can not be fully extended, the solution is: (1) Adjust the lock lever (upper, lower, left, and right), and the oblique tongue and the square tongue are facing each other, so that the oblique tongue can smoothly expand and contract. (2) Look at whether the side trim panel is not installed properly, and when the oblique tongue is pushed against the door opening (3), the movable part of the combined oblique tongue is not too narrow on both sides of the lock core slot, and the combined oblique tongue is stuck; Solution: The lock cylinder of the lock cylinder groove should be widened in the movable part of the tongue. B. According to the handle door lock, the door can be opened inside and outside. Reason: Some door locks have a channel function due to the lock core. No processing is required for the time being, and normal state can be restored after debugging. 3. After the door lock is installed, if you need to temporarily use the card to open the door. operating: A. Install 4 AA high-performance batteries on the 5th. B. Hold the [school time card" pre-configured by the company and insert it into the door lock (or rely on it). The green indicator light is on and [click". C. The company can open the door with the [engineering card" pre-configured by the company. 4. After the door lock is installed and the hotel is officially put into use, it must re-send the new [time card" from the door lock software to all the door locks (or rely on) the green indicator light, and [click" after the door lock Time is the current correct time. Special note: The above installation dimensions are for demonstration purposes only! The actual installation size of the door lock should be based on the goods! Install the door locks in strict accordance with the above installation steps! Andja produces excellent quality locks, And we accept customization. For more information about Andja's products, contact your Andja representative or call 18962195537

How to open the lock? What method does Lock open the fastest? With the upgrading of home quality, the requirements for locks are also getting higher and higher, and some locks with sophisticated construction and innovative technologies are gradually being noticed by people. Different methods of unlocking the door locks are different. For those who forget the key or the key is lost, they need to be turned on. This often requires professionals to open the technology. This article mainly introduces the locksmith tools. Mainly introduce how to use the popular version of the tool. As shown. This is a popular version of the locksmith tool picture. With respect to the popular opening tool, the opening rate is all, and the opening rate for 10 minutes is 70 percent. So where does the 10-minute open rate come from? A locksmith master takes 2 minutes to complete the 50-percent chance of opening the lock after mastering the effective probe operation. There is nothing wrong with the opening rate of the universal tool, but if the actual operation does not open successfully for 10 minutes, It's just that you need more practice. Andja produces excellent quality locksmith tools, And we accept customization. For more information about Andja`s products, contact your Andja representative or call 18962195537

Padlocks are the oldest and largest family in the world of locks. It can be said that other locks are derived from the class of padlocks. The lock body of the padlock is provided with a snap-fit ring-shaped or "one" shape metal stem, that is, a "lock beam", so that the padlock is directly coupled with the lock body through the lock beam to form a closed-type lock. Suzhou Jiarong Communication Components Co., Ltd established in 2001, is well known worldwide as a manufacturer of Lock Cylinders and lock components. We are located in Suzhou of Jiangsu province with convenient transportation access. We just moved into our new plant in November 2018, which have about 40,000 square meters. We have obtained ISO 9001 certificate. Andja is Jiarong's own brand. The stable quality of our product and on-time delivery are always recognized by our customers. We also have strong R&D ability to work with customers to design or customize new products. Whether selecting a current product from our catalog or seeking engineering assistance for your application, you can talk to us about your detailed sourcing requirements. All of us are happy to work with you. Andja produces excellent quality padlock, And we accept customization. For more information about Andja`s products, contact your Andja representative or call 18962195537

A small tin foil, in the hands of master can instantly become a "master key", two or three seconds will be able to easily open the anti-theft lock? ! Is the lock cylinder of my house safe? At present, the door lock is generally divided into three levels: First, A-level, the technology is opened more than one minute (calculated as qualified). Second, the B-level, technology opened more than five minutes (calculated qualified). Third, super B level, opening time is a little longer, up to 270 minutes. According to experts in unlocking, B-level locks and Super-B-level locks are relatively difficult to open, and most of them do not like them. They choose to give up directly and are therefore relatively safe. But in fact, these three levels of locks have a common feature: the internal principles are the same, are the top and bottom pin structure, this lock is called traditional locks. Due to the long working hours and relatively high market share, the number of personnel who study such locks is relatively large. With the aid of the network, the unlocking has become more and more simple, and personal safety has been further affected. Based on such a status quo, our lock industry is also innovative: magnetic locks, fingerprint locks, eye mask locks and other technical content of the locks gradually appeared in front of the public, so that everyone eyes lit up! Here We will talk about fingerprint locks: Fingerprint lock is a kind of intelligent lock with human fingerprint as the carrier and means of identification. It is the perfect crystallization of computer information technology, electronic technology, mechanical technology and modern hardware technology. Fingerprint locks generally consist of two parts: electronic identification and control, and mechanical linkage system. The uniqueness and non-replicability of the fingerprint determines that the fingerprint lock is the safest kind of lock among all the current locks. In addition to fingerprint identification, fingerprint locks, according to national regulations, should be equipped with emergency mechanical keys. According to the division of anti-theft performance, currently popular fingerprint locks are divided into two categories: ordinary fingerprint locks and anti-theft fingerprint locks. Ordinary fingerprint lock, and the original electronic lock is not much difference, mainly to use fingerprint authentication, but not used in existing domestic security doors, such fingerprint locks without world hooks, can not use the security door world security system (all imports Fingerprint locks do not meet national industry standards and can only be used for wooden doors. This type of product is more common in Guangdong products, the appearance of compact, and export-oriented. Industry Foundation: All ** Museum electronic lock base, wooden doors with electronic locks more mature. Therefore, this type of fingerprint lock is also called a wooden door fingerprint lock or office fingerprint lock. Such fingerprint locks may also be partially installed on security doors after special modifications to existing doors or removal of security door world systems. Fingerprint anti-theft lock, better security, can apply to standard security doors and wooden doors. Such locks can automatically or semi-automatically connect the anti-theft door system with the heaven and earth lock system, without affecting the performance of the original anti-theft door. Such products are more common in Zhejiang products, such as St. Georg and Gold Fingers. Industry base: National anti-theft door and anti-theft lock base, anti-theft lock body developed mature and relatively stable. Therefore, this type of fingerprint lock is also called a security door fingerprint lock. Anti-theft performance is different, the market price is also very different. The price of fingerprint locks with mechanical anti-theft function is obviously higher than ordinary fingerprint locks without anti-theft function. Therefore, when purchasing fingerprint locks, first select the appropriate lock according to your door. Generally choose fingerprint lock according to the use of different requirements and use different fingerprint locks, home use should be selected anti-theft fingerprint lock, so the lower the requirements of the door, do not have to be modified, easy to maintain after-sales. Fingerprint locks are generally purchased in batches and can require the same orientation of the door factory to provide matching doors for product installation. Therefore, there is no conversion problem. Only the follow-up maintenance or replacement of common anti-theft locks will cause certain troubles and there will be mismatched new locks. Happening. The villa fingerprint lock is an antique fingerprint lock specially provided for all kinds of villas. This kind of fingerprint lock is the most high-level representative in the current fingerprint lock product line. According to the classification of identification carriers, fingerprint locks can be classified into optical fingerprint locks and semiconductor (capacitive, pressure bar and thermal sensing) fingerprint locks. Optical fingerprint lock is relatively stable and adaptable. It is mostly used in anti-theft locks. It occupies more space than semiconductors, and can still be used after being scratched by metal hard objects. Semiconductor fingerprint locks are relatively small in volume and have a wider range of identification than optics, especially for dry fingerprint users. However, semiconductor fingerprint locks have high requirements for the use of the environment and are easy to scratch. Generally, it is used in the places where people are watching (such as banks) and products (such as mobile phones, laptops). The service life of semiconductors is much shorter than that of optics. Andja produces excellent quality LOCK CYLINDERS, And we accept customization. For more information about Andja`s products, contact your Andja representative or call 18962195537

The B-class lock core is more anti-theft. At present, the lock cores used in the market have three grades: A grade, B grade and super grade B. The anti-destructive opening of the A-class lock cylinder is greater than 15 minutes, and the technical opening is more than 1 minute. The anti-destructive opening of the Class B lock should be greater than 30 minutes, and the technical opening should be greater than 5 minutes. The biggest feature of the Super B-class anti-theft door lock is that the anti-technical opening time is more than 240 minutes. "The lock cylinder can also be identified by the number of marbles. In general, multi-row marble locks are superior to single-row marble locks. Multi-row stealth marble locks are superior to ordinary multi-row marble locks." The master told the author that since the B-level locks are much more expensive than the A-class locks, most manufacturers on the market produce Class A locks. The public can check the key of their own security door. If it is a single row of marbles, the security door is probably installed with a Class A lock cylinder. If the public feels unsafe, they may consider replacing the Super B-class lock cylinder to improve the overall anti-theft performance of the security door. In addition to the lock core, there are hardware accessories. [Materials are generally aluminum alloy, stainless steel and copper. The aluminum alloy is slightly worse, copper is the best, but the price of the lock is also the highest. What is important is that even if copper is used, the difference in the material of the lock is very large, and it is difficult for consumers to distinguish. The salesperson said that the only way for consumers to distinguish is experience. The qualified locks work finer, the unqualified products look rougher, the qualified locks are very clear when opened, and the unqualified locks often have surfaces. Traces of scratches, the key insertion seems loose, and the opening sound is dull.

A key system allows you to control access to all of the locked openings in your facility from the front door to high security server rooms. It is the result of the choices you make for the cylinders on your locks as well as ease of key duplication you prefer for your facility. For instance, if high security is your top priority you should consider a system where key design is restricted and duplication is tightly controlled. Other facilities may prefer convenient and easily accessible key duplication. System configuration steps 1. Identify the openings in your building Before you begin to configure your system, identify all of the openings in your facility. Start at the exterior and move through the building`s core. Consider grouping openings into categories, such as by building, department or floor. This will allow you to consider the security level and key control for each area of the building. 2. Select a cylinder format Conventional cylinders Full size cylinders designed specifically for Andja products. Conventional cylinders require some breakdown of the lock for removal and replacement. The types of cylinders available are: Key-in-knob/lever, mortise and rim cylinders, based on the industry standard plug diameter of 1⁄2". Interchangeable cylinders Can be replaced and installed without breakdown of the lock. Small format (SFIC) Can be used to replace cores from other brands . Based on the industry standard plug diameter of 1⁄2". Large format (LFIC) Large format interchangeable cores are based on the industry standard plug diameter of 1⁄2" utilizing the same key families as conventional cylinders. 3.Select a keyway and key control Open key control Standard keyways easily duplicated and available without any ordering formalities. Exclusive key control Keyways which use blanks that are very hard to find in the marketplace. Restricted key control Special non-stock keyways set aside for limited use and a higher degree of key control. A letter of authorization is required to process orders for keys, blanks and cylinders.

Interchangeable core An interchangeable core or IC is an adaptable locking key cylinder. Unlike a standard key cylinder, which is accessible for combinating only via locking device disassembly, an interchangeable mechanism relies upon a specialized "control" key for insertion and extraction of the essential (or "core") combinating components. "Small format" interchangeable cores are in a figure-eight shape that is standard among lock manufacturers. "Large format" interchangeable cores are of varying sizes. Interchangeable cores can be extracted from one lock type (bored cylindrical lock, mortise lock, padlock and so forth) and then installed into another without requiring the removal or disassembly of any single component. These units are readily adapted for master keying systems and can be set up with spare cores and keys for quick replacement when security is compromised, such as when a key is lost or stolen or when a personnel change takes place. Extracted cores can then be recombinated without urgency and placed back into maintenance storage for future use. Key Attributes Interchangeable cores require a notch at the tip of each key to properly align the peaks and valleys of each blade with the combinating pins in the chambers of the mechanism; as a consequence, these keys are always configured and cut from blade tip to bow. Conversely, conventional cylinders and removable cores use a shoulder near the bow of each key to properly align all peaks and valleys; as a consequence, these keys are always configured and cut from bow to blade tip. As a further consequence of this fundamental difference, neither of these two key types can ever be cross- or master-keyed with the other. As a benefit to keying from blade tip to bow, a six, or seven-pin interchangeable core key blank can be machined to precisely fit a smaller five-pin system configuration. Although the blade of such keys may be a pin or two longer than need be, this extra length never enters the locking mechanism; therefore, five-, six- and seven-pin interchangeable core systems can be easily integrated to work with one another or to provide different levels of access control within the same system. Conventional cylinder and removable core systems are significantly more limited in this regard since the extra length of their keys must pass through to the inside of the locking mechanism, which is often just not physically possible. Andja produces excellent quality interchangeable core, And we accept customization. For more information about Andja`s products, contact your Andja representative or call 18962195537

The main difference between the two cylinders is the tailpieces and how they fit into the lock. And rim cylinders have bolts and a stem that projects out into the door. Besides that, mortise lock bodies fit inside the door, and the lock bodies of rim cylinders can be found on the outside of the door. In this manner, what is the difference between mortise and cylindrical locks? The most glaring difference between a mortise lock and a cylindrical lock is the fact that a mortise lock requires a pocket or an indention to be cut into the door at the specific spot where the lock is to be fitted. Similarly, what is the difference between a cylinder and a core? The Standard core cylinders have a fixed middle (the key hole) that requires the removal of the entire cylinder for repair or re-keying. During the removal of a core on a removable core cylinder, a special key, called a control key, is required to insert and remove the core from the cylinder housing. Considering this, how does a mortise cylinder lock work? Lock cylinder or keyed cylinder is the mechanism that operates the locking and unlocking function of the lock body when the key is inserted. The mortise lock cylinder will have a cam, which is a rotating piece of metal that manipulates the handle's ability to retract the latch. What is a mortise cylinder? Mortise cylinders have a threaded exterior and a cam. And rim cylinders have bolts and a stem that projects out into the door. Besides that, mortise lock bodies fit inside the door, and the lock bodies of rim cylinders can be found on the outside of the door. Andja produces excellent quality Mortise Cylinder and Rim Cylinder, And we accept customization. For more information about Andja`s products, contact your Andja representative or call 18962195537

Andja, a leading manufacturer and marketer of premium access solutions and services, now offers Large Format Interchangeable Core (LFIC) cylinders featuring the Andja SKC system / A100 keyway. The A100 Large Format core is a 7-pin cylinder that can be keyed into master key systems containing Small Format Interchangeable Core (SFIC) and conventional cylinder offerings. According to Jack Hu, Product Manager, Locks, Cylinders & Access Control, [The large format core rounds out Andja`s offering. It makes an ideal cylinder choice for the retrofit of existing buildings and hardware." A100 is a part of Andja`s superior key control system, SKC (Serialized Key Control). To protect against unauthorized duplication, the SKC system tightly controls key blanks. Key blanks are engraved with a unique serial number, and only Andja and its network of authorized key cutters (CKCs) may obtain the blanks to cut keys. SKC key blanks cannot be found at hardware or home improvement stores, and they are not for sale on the internet. Andja Products Compatible With LFIC The following Andja products are already available to accept Schlage style LFIC Cores (R Option): Mortise Lockset Cylindrical Lockset Dead Bolt For more information about Andja`s LFIC Core Cylinders, contact your Andja representative or call 18962195537