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  • 16Oct
    Why Do We Need To Install Automatic Door Openers?

    In recent years, with the development of technology, smart home has long since bid farewell to the concept, appearing in every corner of the home. For example: sweeping robots, smart speakers, smart TVs, Remote gate controller,infrared switches...There are many kinds of intelligent products, and many times tricks and gimmicks take the place of the role. The core of smart products should be to serve life and facilitate different social roles and occasions.In fact, S4A already has products in the field of smart home, but we have been adhering to the principle of low-key and calm, and have been making products silently without excessive publicity.S4A Automatic Swing Gate Openers is a driver (drive device) composed of intelligent motor, speed change mechanism and nylon silent transmission system.Under what circumstances will an automatic sliding gate openers be used?At first glance, the gate opening kit seems to be far away from us, but in daily life, when you open the door with something in your hand, when you just wash your hands and enter the door, pay attention to the quality of life and enjoy the intelligent experience, especially when the boss wants to open the door (after all, the door If someone opens the door, how can the office door be opened in person)......Of course, it is also a life helper for the elderly and people with limited mobility.In addition to being easy to use, the ED200 and ED300 also have the following features: Which is the stronger opening posture:You can use the remote control to open, the button to open, the radar to open, and even a kick (kick switch)200,000 door opening testsIn other words, if you use it 10 times a day, you can use it for 55 years.1 hour to complete the installationIt only takes 1 episode of American drama to install it and start using it.Back to the original question, why do you want to produce the remote control gate opener? S4A has more than 20 years of experience in the field of access control systems and solutions. Due to the various requirements of users for opening doors, there are automatic swing door openers.What kind of gate opener system is good? How to make the door opener match the door reasonably? Which door type is more suitable for installing a door operator? How to meet the needs of using functions and opening doors at the same time?With these questions, we have done a lot of research and tests to understand the use experience, and only have this S4A ED100,ED200 and ED300 automatic door openerOnly those who do access control know how to open the door.

  • 29Sep
    15 ways to judge the quality of a magnetic lock

    In the past two days, three electromagnetic locks have been processed in a row. The three locks look at the same shape. The circuit board can be divided into three grades, A Grade S4A magnetic lock , B, and C at a glance. No result, C-level this often kills the access control host .Standard qualified magnetic locks (Like S4A brand) generally provide two input voltages of 12V and 24V (the difference between single coil and double coil), which are selected and switched by jumpers. There are several ways to judge the pros and cons of a magnetic lock:(1)   Look at the circuit board(2)   Measuring resistance(3)   Measure the current value after power-on(4)   Insulation value(5)   The verticality of the cut steel sheet(6)   Glue inspection(7)   The distance of the cut steel sheet(8)   No residual magnetism(9)   4007 diode(10) Process treatment of lock body shell(11) High and low pressure(12) Acidity test(13) Finish(14) Lock body electroplating(15) Output line1. Look at the circuit boardThe inferior magnetic lock can be judged from the circuit board. The inferior magnetic lock circuit board has rough printing and very simple layout. It does not use varistors (that is, surge devices, generally there are two), and there is only one set of voltage input.2. Measuring resistanceFirst unplug the 12V and 24V switching jumpers of the magnetic lock (note: no power is required), there are generally 4 binding posts (at the jumper), measure the red and black lines, and the resistance is about 50 ohms. good.3. Measure the current value after power-onAfter the magnetic lock is connected to 12V voltage, the current value is measured, and the one that matches the marked value is better. 280KG (600 lbs) magnetic lock is generally better at 400-450 mA. If it is less than 450 mA, it is not enough to pull; if the voltage is 24V, the marked or actual value should be 200 mA.4. Insulation valueThe insulation value of the lock body of a standard qualified magnetic lock should be infinite, and the specific value should be more than 50 megohms; the specific test position is the cut steel sheet and the lock body output line (any one).5. The verticality of the cut steel sheetIn principle, the cut steel piece should be touched or stained with hands as little as possible. The perpendicularity and parallelism of the qualified magnetic lock cut steel piece should be as standard as possible. The quality of the electroplating of the cut steel sheet depends on whether there are oxidation marks on the cut steel sheet.6. Glue inspectionThe colloid of the magnetic lock should not have bubbles(Reference S4A Magnetic Lock), it should be flat and neat, without cracks, and the angle should be square.7. The distance of the cut steel sheetThe main concern is that the thickness of the cut steel should be 0.35mm. At present, most of the cut steel on the market use 0.5mm cut steel; the tighter the arrangement o...

  • 24Sep
    What should I pay attention to when purchasing an automatic door opener?

    How to choose a suitable automatic door opener from purchase to installation?(1) Select the professional factory(2) Purchase cost(3) Which automatic swing gate openers to choose,We have highlighted this.(4) When purchasing a door operator, the compatibility of the door operator should be considered.(5) Engineering problems1:Select the professional factory- personal recommendation to cooperate with the factory directly. Cut out the middleman.If you have any questions, you can also communicate with the factory directly ( Email to: sales@s4a-access.com)Any machine will have certain problems after a certain period of use, so when purchasing a machine, first check whether the purchasing unit is a professional sales unit and whether it can provide good after-sales service. At present, most of the automatic door manufacturers of most brands use the regional agent authorization method for distribution, and the agent provides after-sales service for customers, so that the rights and interests of customers are guaranteed. Of course, it is inevitable that some people will be confused, so you can ask the purchaser to provide relevant guarantee certificates or manufacturer authorization letters when purchasing the machine. One more thing to keep in mind: Beware of fakes.(2) Purchase costEveryone hopes to buy a set of gate swing opener with superior performance, reliable quality and moderate price. Now, the price of door operators on the market ranges from a few thousand yuan to tens of thousands of yuan. There are imported and domestic brands, and the difference is very large. Generally speaking, the price of door operators with better performance and quality is naturally higher, because professional manufacturers do not hesitate to use high-quality parts in order to improve the quality of door operators. As the saying goes: you won't lose by shopping around, you can go to a few more factories or companies, learn more about the price and quality of similar door operators, read more relevant information, and then make a budget.(3) Which automatic gate system to choose,the details as below:If there is a large flow of people, hundreds to thousands of people enter and exit every day, and the door opening is large, such as shopping malls, airports and other occasions, it is better to choose a door operator with a strong brand to avoid failure of the door operator during the peak flow of people. , causing great inconvenience to customers and affecting customer impression.Model:ED200 can meet your demand, the holding force can up to 150KG.If the flow of people is not very large, but the door opening requirements are large, such as a car dealership, you should choose a door operator that can withstand a large weight, so as to ensure that the door operator will not run too slowly. It is best that the door operator also has half-opening Function, that is, when there are no cars or large items in and out, and there are few pedestrians, the opening of the door can be...

  • 24Sep
    What are the advantages and disadvantages of wireless access control?

    Compared with traditional access control, the emergence of wireless access control is the best interpretation of the definition of wireless, which swept away the tediousness and complexity attached to access control, but the stability and security that followed were greatly reduced. Although wireless technology is constantly breaking through the barriers of line, distance and cost, its further improvement and breakthrough in security will be the killer to completely defeat wired access control and seize the market and users in the future.The traditional access control is to use complex wiring to network the cables of each door point, including power supply and control, and the amount of engineering is very large. However, with the rapid development of access control technology and the widening of applications, more and more industry peers and customers have begun to realize that traditional wired networked access control system solutions may not be suitable for some professional applications, such as inconvenient wiring engineering. , or already renovated residences, or hotel room access control systems with a huge application volume. So wireless access control was proposed in this context.The advantages and disadvantages of wireless access control coexistIt has been more than ten years since wireless access control was proposed, but according to the situation of its market application, it is not optimistic. The reason, Anna Zhang, product manager of S4A industrial co.,limited, believes that at present, manufacturers and users are watching the growth of wireless technology with a wait-and-see attitude. On the one hand, they applaud their breakthroughs in convenience, and many more Users want to try new technology in access control, but on the other hand, they are hesitant to question its stability and security. Although the emergence of wireless access control has reduced the complicated wiring and maintenance projects of wired access control, greatly improved the aesthetics of the access control, and saved the cost of users to a greater extent, it is still technically impossible to do the same as wired access control. To the real-time, smooth, stable and safe effect, the market's acceptance of wireless access control has decreased. Rao Ruqun explained that although there is the protection of encryption technology, wireless transmission is carried out in the air, unlike wired transmission, which is transmitted through lines. If others want to intercept and steal data, they must enter the access control environment and need to pass the line Therefore, it is easy to be intercepted and cracked, and the security cannot be guaranteed.In addition, in the function of avoiding interference, wireless access control is easily interfered by magnetic fields, such as computers, home appliances, etc., which are easy to interfere with the transmission of wireless data. Although manufacturers use frequency hopping technology to avoid interference, they can o...

  • 17Sep
    How to distinguish and choose dropbolt lock?

    1. Classification of electric Dropbolt LockElectric Dropbolt Lock can be divided into two-wire, five-wire, eight-wire, etc.; according to different use occasions, such as five-wire, eight-wire and other multi-wire electricDropbolt Lock basically have the function of door magnetic signal detection. In some access control systems, users need to see the real-time opening and closing status of the door on the access control software interface, then they need to choose this electric mortise lock with door magnetic signal detection.2. How to judge the quality of electric Dropbolt Lock?1. When you get the electric dropbolt lock, check whether the surface of the lock body has obvious scratches, and the lock body should have a metallic luster.2. After the power is turned on and the power is turned on for a long time, whether the surface of the lock body is hot, whether the bolt of the electric mortise lock is fully ejected, and whether the bolt springs back forcefully after pressing the bolt.3. Whether the Dropbolt Lock is an ultra-low temperature electric lock, so that the Dropbolt Lock will not get hot during repeated operation, thereby prolonging the service life of the electric Dropbolt Lock.4. Whether the electric Dropbolt Lock has an anti-intrusion circuit design. Some electric Dropbolt Lock on the market are locked by magnetic induction. When the magnetic force artificially disappears or the magnetic force is weakened, the latch springs back to unlock. At the actual installation site, there is a certain gap between the small magnetic plate and the lock body of the electric Dropbolt Lock. Once the magnetic force between the magnetic plate and the lock body is blocked by a small object, the lock body will automatically open because it does not sense the magnetic force. deadbolt. This kind of electric Dropbolt Lock will inevitably have certain security risks. The electric Dropbolt Lock with anti-intrusion circuit protection is locked by sensing the magnetic force of the small magnetic sheet. Once the electric mortise lock is locked, the electric mortise lock can only be opened by receiving the door opening signal or power off. Because of the presence or absence of the magnetic force of the small magnetic sheet, the safety of the Dropbolt Lock is affected.Author: Written by Ms.He from S4A INDUSTRIAL CO., LIMITED

  • 17Sep
    How to identify the quality of the magnetic lock?

    Our factory has 15 years experience in magnetic lock production.Whether it is the low-end market, the terminal market, or the high-end market, our company has corresponding magnetic locks to meet your different needs.Of course quality is based on cost. mini Magnetic locks should be identified from various technical indicators. Standard qualified magnetic lock door generally provide two input voltages of 12V and 24V (the difference between single coil and double coil) for time delay magnetic lock, They are selected and switched by jumpers. There are several ways to judge the pros and cons of a magnetic lock:Here,S4A company's engineers have summarized 15 related knowledge for your reference.1. Circuit board: The inferior magnetic lock can be judged from the circuit board. The inferior magnetic lock circuit board has rough printing and extremely simple layout. A set of voltage inputs.2. Measure the resistance: first unplug the 12V and 24V switching jumpers of the magnetic lock (note: no power is required), generally there are 4 binding posts (at the jumper), measure the red and black lines, the resistance is at Preferably around 50 ohms.3. Measure the current value after power-on: After the magnetic lock is connected to 12V voltage, the current value is measured, and the one that matches the marked value is better. 280KG (600 lbs) magnetic lock is generally better at 400-450 mA. If it is less than 450 mA, it is not enough to pull; if the voltage is 24V, the marked value or actual value should be 200 mA.4. Insulation value: The insulation value of the lock body of a standard qualified magnetic lock should be infinite, and the specific value should be more than 50 megohms; the specific test position is the cut steel sheet and the output line of the lock body.5. Perpendicularity of the cut steel sheet: In principle, the cut steel sheet should be touched or stained with hands as little as possible. The perpendicularity and parallelism of the qualified magnetic lock cut steel sheet should be as standard as possible. The quality of the electroplating of the cut steel sheet depends on whether there are oxidation marks on the cut steel sheet.6. Glue inspection: There should be no air bubbles in the colloid of the magnetic lock, it should be flat and neat, without cracks, and the angle is square.7. The distance between the cut steel pieces: the main concern is that the thickness of the cut steel pieces should be 0.35mm, which is the best. At present, most of the steel cut pieces on the market use 0.5mm cut steel pieces; the tighter the arrangement of the cut steel pieces on the lock body, the better , Pay attention to observe that there is no glue leakage in the arrangement of the cut steel sheets.8. No residual magnetism: Generally, the cleats of magnetic locks are made of pure iron, but most of the cleats are 99% pure iron, so they must have the function of removing residual magnetism, and are equipped with protruding rubber pads to play a buffering r...

  • 17Sep
    How to install the L,Z,U bracket of the magnetic lock?

    How to install the L,Z,U bracket of the magnetic lock?Many customers are not sure if their own doors need brackets, or what brackets to choose.After ordering, can they install it themselves?According to the usual communication with customers, we have sorted out the relevant questions of customers, and hope that this article has the answers you want.If you need more detailed information, you can email or call us directly.Email: sales@s4a-access.com  or Call: +86 755 29450011       a. First put the L1 bracket in the Z&L bracket on the position where the lock is installed, and fix it on the door frame or wall with self-tapping screws.       b. Use a hexagonal wrench to lock the lock body on the L1 bracket.       c. Fix the Z2 bracket on the door corresponding to the position of the L1 bracket.       d. Insert the follower iron plate into the three holes of Z1 for false fixation, and then close the door to make the magnet and the follower iron plate fit tightly, and determine the connection position of Z1 and Z2 for the single door magnetic lock(The relative position of Z1 and Z2 can be adjusted according to the thickness of the door)      e. Tighten Z1 and Z2, and then fix the follower iron plate on Z1 with M8*25 hexagon socket head screws (insert the screw, iron plate, washer and rubber washer in sequence).       f. If it is a double door magnetic lock system, two Z&L brackets can be used. Buried (built-in) installation method The buried installation method of the inner door and the outer door are the same. The slot, the lock can be embedded and then the screw can be locked, and the general construction personnel will install the lock when they see the lock.The frame of the aluminum alloy door is generally hollow. For this feature, we have designed two installation methods.      A. Wood lining method: Put a suitable size of wood in the door frame for lining, and then lock the screws. This method is convenient to obtain materials and simple to install. This method is mostly used in actual installations.      B. Using the installation accessories method: This method is to use the accessories (four-hole iron plate + U-shaped iron) provided by us to make the installation easier. Installation Precautions When doing flush installation, make sure that the size of the door stop is slightly larger than the size of the selected lock.  Glass door installation method 1. Installation method of glass door with aluminum alloy (or other materials) framed glass door for embedded installation generally can use FG-600 or UB-600 series magnetic door lock, which is unique to our S4A company and most suitable for installation in glass door The lock on the door, whether your door is inward-opening or outward-opening, double-opening free door can be installed. The installation method is the same as the embedded ...

  • 03Sep
    How is the access control system linked with the fire alarm system and video surveillance system?

    Linkage between access control system and fire alarm systemIn places with relatively dense traffic, it is difficult to evacuate people in emergencies such as fire alarms and terrorist attacks, especially after the installation of access control systems in these places, this problem is particularly obvious. It has become a major obstacle to people's escape. Therefore, the access control system must have the function of fire-fighting linkage.The signal output by the fire alarm system is usually a passive dry contact signal, and the access control system can be linked with it in two ways.Directly power off the electric lock controlled by the access control systemThe fire protection system can be directly connected to the relay (it should be pointed out that when the relay has no fire alarm signal, the coil should be in a power-off state, so as to prolong the life of the relay) to control the electric lock power supply of the access control system, that is, the relay is normally open. The contact controls the on-off of the 220V power supply. When a fire alarm occurs, the relay will act in time to force the power-off control of the electric lock power supply of the access control system (mains power and backup power supply), so that the designated door can be automatically opened when the system is powered off. . The advantage of this method is that it is easy to use, but the controller has no access to alarm signals and no corresponding records are kept.Access control system logical judgment linkage (indirect linkage)The alarm signal of the fire alarm system is directly communicated with the linkage expansion port of the access control controller. This method can realize input functions including fire alarm signal input, glass breaker alarm signal input, etc., as well as sound and light alarm signal output, forced electric lock. Action output and other functions. In the event of a fire, the access control controller will accept the fire alarm signal transmitted by the fire alarm system in the form of a relay dry contact (the fire protection system actively sends the signal, and the access control system passively receives and executes control), so as to control the designation according to the prefabricated linkage command. The electric lock automatically opens or closes to facilitate the normal evacuation of personnel and achieve the purpose of escape.In order to further emphasize the safety of the channel and prevent someone from deliberately creating false fire signals to automatically open the electric lock and cause escape accidents, the access control system can be set to the multi-channel fire alarm signal input authentication mode, which can be set to receive multi-channel fire alarm signals. A designated door is only opened when an alarm signal occurs. If only a single-channel alarm signal input is detected, no action command will be issued to the electric lock, but the electric lock can still be opened through the normal legal exit proc...

  • 03Sep
    Analysis of the development trend of Network Access Control systems and solutions-3

    Face recognition is a trend, but also integrationFace recognition is a bright spot and trend in smart access control. As the technology matures, the cost of face recognition equipment continues to drop, even slowly approaching the cost of fingerprint recognition equipment. In some public areas, such as schools, park entrances and exits, for the convenience of fast passage, the verification method of pure face recognition can be adopted. However, in key places, it is recommended to use a hybrid verification method, such as face + card or face + password composite verification. When providing products and design solutions, S4A access control manufacturers will recommend different verification combinations based on the actual use scenarios and purposes of users. In general, smart access control solutions still need to maintain a certain balance in terms of convenience and security.At present, the security of face recognition is already high. It is basically inadvisable to use high-precision printing of photos/videos/3D masks to replace faces and other attack methods. Face recognition equipment can detect living bodies through various technical means, such as binocular cameras, 3D structured light, etc., to effectively identify fake faces.However, it is still necessary to realize that in the overall access control solution, face recognition is only one of the identification and verification methods, and it needs to be better integrated into the traditional access control solution, so that the management server can unify the traditional access control controller and the face recognition device. The data is distributed, and the face-swiping records are completely stored in the entire access control system, forming a complete and unified solution.Of course, if you want to learn more or have a deeper discussion,you can add our whatsapp: 0086 134 1050 0721  (Anna Zhang).Ms or email back to me: sales1@s4a-access.com

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  S4A-Security For All.  S4A Industrial Co., Limited, Founded in 2010, We have been dedicating in access control production R&D and sales for 10year till now. With the belief that we do one thing well in a lifetime, our CEO has been in this industry for 15 years. During the past 10 years, our products have been exported to various countries and regions. And 90% of customers come from the recommendations of cooperative customers, and 80% of the turnover comes from cooperative customers in the past 10years.Your business is a plant, we are the gardener, our mission is to water and fertilize the plant, and make it become the towering tree. We attach great importance to the partner's appeal, customer's suggestions, and feedbacks. To strengthen Product quality awareness, client's service awareness. Our clients and S4A are on the same path walking for many years.       S4A's future would be even more brilliant, this is related to all of our staff's working sweat. When you join this team, you will feel an invisible power to drive walk forward. S4A mainly produces a series of security Door Access Control such as:Network Access Controller, Locker board, Electromagnetic lock, Standalone door Controller, Automatic door opener, etcOur team can manufacture products, sell products, and do after-sales.We can create value for you! 1-We put quality and price in top priorityQuality takes great importance for a company's credibility, and buyer's every penny spend must worth it. That is our most basic principle. Our business mainly for wholesale, so we could offer large quantities at competitive prices. During the past 10 years, We work hard to create value for our customers, and with our help, customers have an increasing market share. 99% of the customers who have cooperated with S4A will choose 2nd,3rd, and endless purchasing. because S4A not only controls the product quality very well, but the price is also very reasonable. As you can see, we have hundreds of products, but We do not produce all products. We adopt a portfolio strategy and invest in each factory. Because of the large export volume and the stable cooperation relationship with the factory, we can better control the quality and price of the products. Cooperate with us, you have no worries. In the past 10 years, more than 80% of our customers' sales have increased turnover by 15-20% every year. 2 -We have experienced and professional sales Our sales are not just sold products, we also help you choose products, do market research. Our company's top sales team all have more than 8 years of experience in the access control market, our team loves learning, loves sharing, good at summarizing, and dare to undertake responsibility. Because all of us regard the access control field as a career we love throughout our lives. At S4A, you can get a quick response and flexible support, and you can see our ability to solve problems. get professional guidance and recommendations, you don't have to worry about after-sales at all. Our task is: All emails must be replied within 2 hours at a working time!3-We have experienced and professional engineer S4A is equipped with 6 technical engineers for after-sales. and every year, We take out 20% of the net profit as research and development for new products, We all know Access control system is a kind of product with technical knowledge. When you have headaches such as unable to connect wires, Software compatibility issues or programming device, please remember S4A's after-sales support at any time. Our task is: All technical issues must be solved within 4 hours at a working time!4-Support OEM & ODM  All of our products accept OEM and ODM orders at a reasonable quantity. we help customers to promote their brand. We all know Access control is an increasingly popular industry. Based on past experience, we have found that customers who have just started to become distributors do not have a large number, but want to promote their own brands. For this kind of customer, we will also have a special application to do OEM for him. Because Support is mutual.5. S4A Vision Our Vision is to let all people in the whole world free their hands for keys, whether it is in poor areas or developed cities able to use access control.<
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