Being considered one of the most secure locks you can have, magnetic locks are exceptionally reliable and rarely hacked. More recently, properties are gravitating toward the use of magnetic locks due to the increased security they offer, ease of installation and for faster access.
What is a magnetic lock?
A magnetic lock, or maglock, uses an electric current to generate a magnetic force. This force secures the door by locking it in place. When the electric current activates the magnet, it engages a locking mechanism, securing the door. Conversely, removing the power source unlocks the door, allowing access.
How Magnetic Locks Work
Magnetic locks, or maglocks, function through the interaction of their North and South poles, coupled with an electrical current that enhances the magnetic force. They consist of two main components: an electromagnet and an armature plate. The electromagnet is installed on the door frame, and the armature plate is attached to the door.
When the electromagnet is powered, it creates a magnetic field that attracts and holds the armature plate firmly against it, securing the door. This magnetic attraction is what keeps the door locked, preventing it from being opened without proper authorization.
Fail-Safe Mechanism
One of the key safety features of magnetic locks is their fail-safe design. Because they require continuous power to stay locked, they automatically unlock in the event of a power failure. This makes them particularly safe for use as emergency exits. In situations like a fire, where power may be intentionally cut off via a fire relay or call button, the doors will unlock, allowing occupants to exit the building safely.
Remote Unlocking and Access Control
Magnetic locks can be unlocked remotely in two primary ways:
- Buzzer Switch: Pressing a buzzer switch cuts off the power to the magnet, which releases the lock and opens the door.
- Access Control Systems: These systems include keypads, card readers, or biometric scanners that verify the identity of each user. Once authenticated, the system cuts power to the electromagnet, unlocking the door for authorized individuals.
Many modern access control systems also offer smartphone apps for remote locking and unlocking, adding a layer of convenience. Additionally, some setups include sensors that automatically open the door as someone approaches, further streamlining access.
What are the advantages and disadvantages of magnetic locks?
Advantages
- Easy to Install: Magnetic locks can be installed quickly without the need for complex mechanical modifications. They are often surface-mounted, requiring minimal intrusion into the door structure.
- User-Friendly: The absence of physical keys reduces the risk of loss or unauthorized duplication. Access can be managed digitally, which simplifies control.
- Highly Durable: With no moving parts, magnetic locks experience less wear and tear, resulting in lower maintenance needs and longer lifespan.
- Secure: The locking mechanism is resistant to tampering. Magnetic locks are difficult to pick or force open compared to traditional mechanical locks.
Disadvantages
- Power Dependency: The need for continuous electrical power can be a vulnerability. In the event of a power outage, the locks will fail unless supported by an auxiliary power source like a battery backup.
- Potential Wear: Continuous use can sometimes lead to a gradual weakening of the magnetic force, requiring periodic checks and maintenance.
- Higher Cost: The initial cost of magnetic locks and associated access control systems can be higher than traditional mechanical locks. However, this can be offset by the increased security and convenience they offer.
Applications of Magnetic Locks
Magnetic locks are versatile and used in various environments, including:
- Office Buildings: Providing secure access to restricted areas and integrating with employee ID systems.
- Schools and Universities: Enhancing security by controlling access to different parts of the campus.
- Hospitals: Ensuring safety and security in sensitive areas like medication storage and patient wards.
- Residential Complexes: Offering residents secure entry without the need for keys.
- Industrial Facilities: Protecting valuable equipment and sensitive information.
Integration with Access Control Systems
Magnetic locks can be seamlessly integrated with modern access control systems. These systems provide multiple methods of authentication, including:
- Keypads: Users enter a PIN code to gain access.
- Card Readers: Access is granted via proximity cards or smart cards.
- Biometric Scanners: Fingerprint or retina scans ensure high-level security.
- Smartphone Apps: Remote access and monitoring capabilities enhance convenience and security.
Goudsmit UK
High performance magnets from Goudsmit UK are used daily in hundreds of industrial applications worldwide. Should you have a special requirement, our team of design engineers will be happy to create a custom solution. All magnetic products manufactured by Goudsmit UK also meet or exceed ISO 9001 and AS 9120B quality standards.
With over 21 years of experience in the design and manufacture of high-performance magnets, magnetic assemblies, and precision parts, Goudsmit UK supply critical parts to some of the leading names in the most demanding industries.
For more information on our products and services download our brochure.
Contact us on +44 (0) 2890 271 001 or also at info@goudsmit.co.uk
