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Electromagnetic Lock


The working principle of the Magnetic Lock

The design of the magnetic lock (or electromagnetic lock) is the same as that of the electromagnet. It uses the principle of electromagnetism. When the electric current passes through the silicon steel plate, the electromagnetic lock will generate powerful magnetism and tightly attract the iron plate to lock the door. As long as a small electric current electromagnetic lock will generate a powerful magnetic force, the access control system that controls the power supply of the electromagnetic lock will cut off the power after identifying the authorized users and the electromagnetic lock can open the door after power off. This is Fail-Safe locks.

We know that every magnet has two poles, a north pole (N pole) and a south pole (S pole). Magnets have the characteristics of repulsion of the same points and attraction of opposite point, Magnetic locks take advantage of this feature of magnets. The unlocking tools made of permanent magnets (magnetic beads) are also called "electronic locks".

At S4A Factory, we pride ourselves on our exceptional capability to fulfill both OEM (Original Equipment Manufacturing) and ODM (Original Design Manufacturing) orders with precision and excellence. With our versatile manufacturing capabilities and dedicated team of experts, we offer a comprehensive suite of services to accommodate the unique needs and preferences of our clients.

For OEM orders, we excel at producing high-quality products based on the exact specifications and designs provided by our clients. Whether it's replicating existing products or manufacturing components according to specific requirements, our advanced facilities and stringent quality control processes ensure that each OEM order is executed with utmost precision and reliability.

In addition to OEM services, we also offer ODM solutions for clients seeking customized product development from concept to completion. Our experienced design and engineering teams work closely with clients to bring their visions to life, providing innovative solutions tailored to their exact specifications. From conceptualization and prototyping to manufacturing and distribution, we are committed to delivering ODM projects that exceed expectations and set new standards of excellence.

With our seamless integration of OEM and ODM capabilities, S4A Factory offers unparalleled flexibility and versatility to cater to a diverse range of client needs. Whether you're looking to bring your own designs to market or leverage our expertise in product development, we are your trusted partner every step of the way. Experience the difference with S4A Factory and unlock the potential of your OEM and ODM projects today.


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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.In the realm of access control, one company stands out for its unwavering commitment to providing security services for everyone. S4A, which stands for "Security for All," has been at the forefront of access control technology for the past 13 years. With its own state-of-the-art factory and a strong focus on research and development, S4A has continuously delivered cutting-edge access control machines with the latest functions. Their dedication to product quality, customer feedback, practicability, and cost performance sets them apart as a leader in the industry.Factory and R&D Expertise:S4A takes pride in its fully-equipped factory, where skilled engineers and technicians work tirelessly to develop and manufacture access control solutions that meet the highest standards. The company's investment in research and development has resulted in a steady stream of innovative products that cater to evolving security needs.By staying ahead of the curve, S4A ensures that their customers have access to the latest advancements in access control technology.Quality Assurance and Customer Feedback:At S4A, product quality is of paramount importance. The company adheres to rigorous quality control procedures throughout the manufacturing process to guarantee the reliability and durability of their access control machines. Each product undergoes comprehensive testing to ensure it meets industry standards and exceeds customer expectations. S4A also places great value on customer feedback, actively seeking input to continuously improve their products and services. By listening to their customers, S4A maintains a customer-centric approach and delivers solutions that address real-world security challenges.Practicability and Cost Performance:S4A understands that access control solutions must not only be technologically advanced but also practical and cost-effective. The company's emphasis on practicability means that their products are designed to be user-friendly, easily integrated into existing systems, and adaptable to various environments. S4A's access control machines are known for their intuitive interfaces, simple installation processes, and seamless compatibility with other security systems. Additionally, S4A strives to provide cost-effective solutions without compromising on quality. Their competitive pricing ensures that security is accessible to businesses and individuals of all sizes.With 13 years of industry experience, S4A has cemented its position as a leading provider of access control solutions. Through their dedication to "Security for All," the company has set a benchmark for excellence in product quality, customer satisfaction,practicability, and cost performance. S4A's in-house factory and research and development capabilities enable them to stay at the forefront of technological advancements in the field of access control. As the company continues to evolve and innovate, S4A remains committed to empowering individuals and organizations with the highest level of security, ensuring that everyone can enjoy the peace of mind that comes with a reliable and efficient access control system.We can create value for you!Quality 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 customer...<
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    Factory Address:Building S4A, South Third Lane, Qiuyuling Street, Zhangkeng Village, Hengli Town, Dongguan City, Guangdong Province Office Address:#601,floor 6 ,building 1,JINFANGHUA industrial zone, Bantian St. Longgang Dist. Shenzhen, PRC.

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