Electronically-controlled magnetic lock

Please note both magnetic locks will require an additional PSU (Power Supply Unit) to operate.

Safety 1st Magnetic Cabinet Locks, 8 Locks + 1 Key

$29.99
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  • Under difficult business conditions, Locknetics was later sold to the Ives Door Hardware company and later, resold to the Harrow company.[] Much later this division was then again sold to Ingersoll Rand Security Technologies. The division was recently closed and transferred to other divisions within Ingersoll Rand Security. Employees that were associated with activities at Locknetics, went on to form other electromagnetic lock companies, including Dynalock Corporation and Security Engineering Co.[]

    Saphirstein continued developing electromagnetic locking technologies at other companies he initiated including Dortronics (later purchased by Sag Harbor Industries), Delta Controls (first purchased by the Lori Lock Company and then later purchased by Hanchett Entry Systems) and Delt-Rex Door Controls, all of which were located in Connecticut. Other engineers also left these companies to form their own manufacturing firms in electronic locking, including Highpower Security Products LLC in Meriden, Connecticut. Many other firms in both the U.S., Canada, and throughout Asia were later established to create additional product offerings for the direct-pull electromagnetic lock.

  • The first modern direct-pull electromagnetic lock was designed by Sumner "Irving" Saphirstein in 1969 for initial installation on doors at the []. Fire concerns by local authorities in locking the doors at the Forum prompted management to find a locking solution that would be safe during a fire incident. Saphirstein initially proposed to use a linear stack of door holders to work as an electromagnetic lock. These door holders were traditionally used to hold doors open, but in this application Saphirstein believed that they could be packaged and adapted to work as a fail-safe lock. After a successful prototype and installation at the Forum, Saphirstein continued evolving and improving the design and established the Locknetics company to develop accessories and control circuits for electromagnetic locks.

    The principle behind an electromagnetic lock is the use of electromagnetism to lock a door when energized. The holding force should be with the load, and the lock and armature plate should be face-to-face to achieve optimal operation.

     

    Magnetic Locks - it consists of a magnet mounted onto door frame and a steel plate attached to the top of the door. The door will be strongly bonded when the magnet is energized holding the steel plate.

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    Access Control - By entering passwords, it allows the users to unlock the magnetic locks. It has a dual-color LED indicator which indicates its current and proximity functions.

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    Exit Switch - it is placed inside of the room that the lock provides access to, and allows individuals to open the door to leave the room.

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    The magnetic lock relies upon some of the basic concepts of . Essentially it consists of an attracting a conductor with a force large enough to prevent the door from being opened. In a more detailed examination, the device makes use of the fact that a current through one or more loops of wire (known as a ) produces a magnetic field. This works in , but if the solenoid is wrapped around a core such as the effect of the field is greatly amplified. This is because the internal magnetic domains of the material align with each other to greatly enhance the magnetic flux density.

KidCo Adhesive Mount Magnet Lock - Key Set

An Electromagnetic Lock is used to secure a door in conjunction with push bars, request-to-exit devices, or credential readers. It uses magnetic force and thus does not require a mechanical latch bolt to lock the door. Fail-safe by design (i.e., if the power goes off, the door will be unlocked), the Electromagnetic Lock needs a UPS (uninterruptible power supply) to remain locked during power failure.