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Learn about electric RIM locks

November 17 , 2022

Electric RIM lock is a kind of electric lock with a large amount of use. It can be opened electronically or with a key. It is mostly used in building intercom doors (also called electric doors) in residential areas. It is the veteran of electric locks. For a period of time, it represented the electric lock, and now people often use the electric lock as a general term for all electric locks. However, because it cannot be set to normally open and normally closed, it is rarely used in access control.

Electric Rim Lock

The electric RIM lock has two lock pins, one is smaller, this is not a lock pin, it is used to store energy, its function is to store energy when the door is closed, so that the lock pin can bounce back when unlocking, so this small The energy storage lock plug corresponds to the position where the lock box has no opening, and the other lock plug is larger. This is the real lock plug. When installing, this lock plug should correspond to the lock position of the lock box. The inside of the electric lock is a set of linkages. When the door is closed and the electric lock is locked, the large lock inserts into the lock, and the small lock insert used to store energy is squeezed, and the spring of the linkage stores energy, which is used for electric power. The spring of the electromagnetic coil for unlocking supports a metal piece to lock the linkage, and the electric control lock is locked. When opening the door, only a short-term current is needed to the electromagnetic coil, the electromagnetic coil forms an attractive force, and the metal piece of the linkage is stuck. Being sucked away, the entire linkage, driven by the previously stored elastic energy, pulls the large latch to open. The electric lock is also equipped with a set of keys and lock cylinders, as well as an internal knob or button. You can manually use the key outside the door to directly toggle the linkage with the linkage device to open the electric lock, or you can press the lock inside the door. The button on the lock is unlocked, that is to say, the access control uses the electric control lock to save the exit button, and directly press the button on the electric control lock (or rotate the knob) to open the electric lock when going out.



Electric RIM locks are suitable for installation on iron doors, especially for building iron doors for building intercoms. In order to make the installation of electric locks more secure, if you install electric locks directly when making doors, it is usually installed on the door leaf electric lock. Install the embedded parts to support and fix the lock body, and then try to install the lock at the position of the reinforcing rib of the door, or simply make a large back plate and install it at the position of the lock. Adding a back plate is to increase The strength of the door makes the installation of the electric lock more firm. Even if it is a door that is not opened frequently, the outlet of the door frame should be protected to prevent the lock wire from being pinched by the door. Because a key needs to be installed, in order to open the door conveniently, the installation height of the electric lock is generally 80cm-100cm from the ground.

Electric RIM Door Lock

Once the electric RIM lock is unlocked manually or electrically, if the door is not opened and closed again, the electric control lock will always be in the unlocked state and will not close automatically, so some places with high safety requirements must choose the electric door lock carefully.


The two wires of the electromagnetic coil of the electric lock are not divided into positive and negative, so the color of the two wires is generally not distinguished. As long as there is enough current in the coil, the lock will be unlocked.


Some electric RIM locks have made certain improvements on the basis of the original standard electric control locks, including installing a small wheel on the energy storage lock, which reduces the noise to a certain extent.

Author:Written by Ms.Vivian He 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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