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What is an electromagnetic door suction? How does it work and how to install it?

October 31 , 2022

Electromagnetic door suction, this kind of door suction is often used with fire doors, also known as electromagnetic door suction for normally open fire doors.


1. What is electromagnetic door suction

2. The working principle of electromagnetic door suction

3. Electromagnetic door suction classification

4. Installation method of electromagnetic door suction


1. What is electromagnetic door suction

Electromagnetic door suction is an electromagnet used for automatic doors. It is a door positioning device that uses electromagnetic principles to generate suction, also known as electronic door suction. Due to its simple mechanical structure, reliable electromagnetic principle, and low-voltage micro-current operation, its service life can reach decades or even hundreds of years. On-site manual control and remote electronic control are widely used in building intelligent door control facilities. At present, electromagnetic door suction is mainly used for fire doors in buildings, and must pass the inspection of the National Fire Protection Center.


door suction


2. The working principle of electromagnetic door suction

The electromagnetic door suction is mainly composed of a magnet body (installed on the wall), a suction plate (installed on the door leaf), a mounting base or a bracket, with a release button and a buffer pad. The working principle of the electromagnetic door suction is to generate electromagnetic force by the conversion of current, to absorb the suction plate installed and fixed behind the fire door, and firmly absorb the door, so that the door cannot be closed, and the fire passage is unblocked.

For example, the normally open fire door release device composed of electromagnetic door suction and fire door controller has the function of keeping the fire door normally open and automatically closing in the event of a fire, realizing "closing the door when power off", which can be powered by the mains at ordinary times. It does not occupy limited fire-fighting power resources, and does not increase the cost of fire-fighting power supply equipment and circuits. When a fire occurs, the mains power supply is just cut off to realize automatic shutdown, thus ensuring the smoothness of the usual fire-fighting passages. The effect of smoke and fire prevention", thus ensuring the safety of personnel and property.


3. Electromagnetic door suction classification

According to different installation methods, electromagnetic door suction can be divided into three types: wall type, floor type and chain type. Door suction and chain fasteners. Generally, the wall-type door suction is suitable for the situation that the door leaf is very close to the wall at the maximum opening angle, and the floor-type electromagnetic door suction is suitable for the situation that there is no wall behind the door leaf after it is opened, so the wall type cannot be used.

The chain door suction is more suitable for the case where there is a wall behind the door leaf after opening, but the distance is far away. Therefore, when choosing the type of door suction, you should determine which one to use according to the distance between the door and the wall.


door suction


4. Installation method of electromagnetic door suction

First of all, we need to determine the installation method of the door suction and choose a suitable door suction product, then choose the appropriate installation position on the door and the wall, and then align the front of the suction plate with the front of the electromagnet without leaving any gaps. , otherwise it will affect the magnetic force.

Then, tear off the self-adhesive sticker, stick it on the back of the suction plate, align the front of the suction plate with the front of the electromagnet, and then open the door until it touches the suction plate (bottom), and use a little force to make the suction plate. Glue the door leaf and fasten it with the provided screws.


door suction

Author:Written by Ms.Rebecca Fu 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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