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Automatic door electromagnetic lock (magnetic lock) lack of suction or no suction solution

November 08 , 2021

The design of the automatic electromagnetic lock (or magnetic lock) is the same as that of the electromagnet. It uses the principle of electromagnetism. When the electric current passes through the silicon steel sheet, the electromagnetic lock will produce a strong suction force to tightly attract the iron plate to lock the door. So it is widely used in automatic doors, but this kind of lock will have insufficient suction or no suction failure after long-term use. So how should this kind of failure be solved?

electromagnetic lock

1. Automatic door magnetic lock (electromagnetic lock system) has a little suction or insufficient suction. Reasons and solutions:


1. The magnetic lock is not installed in a standard manner when it is installed.


2. The traction plate of the magnetic lock is installed too tightly, so that the magnetic lock body and the traction plate are not completely sucked together, but a certain part is sucked together. This is bound to cause insufficient suction. You can loosen the traction plate a bit to allow the traction plate to have a range of motion, so that the lock body and the traction plate can be completely attracted.


3. If the inspection is not the above problem, then you can consider the problem with the wire you selected, you can use a multimeter to measure the voltage of the magnetic lock power input (the normal condition of the magnetic lock is 12V). The farther the magnetic lock is from the power supply, the greater the voltage drop will be. Insufficient voltage will also cause insufficient suction power of the magnetic lock, or no suction power at all. Our requirement: The distance between the power supply and the magnetic lock is within 50 meters, and it is recommended to use a power cord with a cross-sectional area of 1.0 square millimeter; if it exceeds 50 meters, the cross-sectional area of the power cord should be doubled (2.0 square millimeters) within 100 meters, or two 1.0 square millimeter power lines are connected in parallel.


2. Automatic door magnetic lock (electromagnetic lock) has no reason and solution:


1. First determine whether there is any problem with the power supply for the magnetic lock. Please use a multimeter to check whether the input voltage is normal at the terminal connected to the power cord of the magnetic lock. Normally, the voltage should be above 12V; if not, please find the problem with the power supply.


2. If there is no problem with the power supply after the above test, then check whether the power cord of the magnetic lock you choose meets the requirements (please refer to the power cord specification above).


3. If there is no problem in the previous two steps, the power supply is normal, and the power cord selection is standard; then, please use a multimeter to check whether the input voltage of the magnetic lock is normal; if the input voltage of 12V is normal, there are two situations:


A. The wiring terminal is not connected properly, please reconfirm and connect the wiring;


B. There is no problem with the wiring. That is, there is a problem with the magnetic lock, please contact the factory for repair.

Author:Written by Ms.Anna Zhang from S4A INDUSTRIAL CO.,LIMITED

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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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