Electromagnetic Lock

An electromagnetic lock, magnetic lock, or maglock is a locking device that consists of an electromagnet and an armature plate. There are two main types of electric locking devices. Locking devices can be either “fail safe” or “fail secure”. A fail-secure locking device remains locked when power is lost. Fail-safe locking devices are unlocked when de-energized. Direct pull electromagnetic locks are inherently fail-safe. Typically the electromagnet portion of the lock is attached to the door frame and a mating armature plate is attached to the door. The two components are in contact when the door is closed. When the electromagnet is energized, a current passing through the electromagnet creates a magnetic flux that causes the armature plate to attract to the electromagnet, creating a locking action. Because the mating area of the electromagnet and armature is relatively large, the force created by the magnetic flux is strong enough to keep the door locked even under stress.

electromagnetic lock

electromagnetic lock

Typical single door electromagnetic locks are offered in both 600 lbs.(272kg) and 1200 lbs. (544kg) dynamic holding force capacities. A “fail safe” magnetic lock requires power to remain locked and typically is not suitable for high security applications because it is possible to disable the lock by disrupting the power supply. Despite this, by adding a magnetic bond sensor to the lock and by using a power supply that includes a battery backup capability, some specialized higher security applications can be implemented. Electromagnetic locks are well suited for use on emergency exit doors that have fire safety applications because they have no moving parts and are therefore less likely to fail than other types of electric locks, such as electric strikes.

The strength of today’s magnetic locks compares well with that of conventional door locks and they cost less than conventional light bulbs to operate. There are additional pieces of release hardware installed in a typical electromagnetic locking system. Since electromagnetic locks do not interact with levers or door knobs on a door, typically a separate release button that cuts the lock power supply is mounted near the door. This button usually has a timer that, once the button is pressed, keeps the lock unlocked for either 15 or 30 seconds in accordance with NFPA fire codes. Additionally a second release is required by fire code. Either a motion sensor or crash bar with internal switch is used to unlock to door on the egress side of the door automatically.

 

double door electric lock with signal

Double Door Electric Lock with Signal

Double Door Electric Lock with Signal, Double Door Magnetic Lock with Signal Output 350 lbs*2, Electromagnetic Electric Magnetic Door Lock, 180kg * 2 Double Door Electric Lock with Signal Output, Electric Lock Magnets Electric Lock with Signal Output Technical Parameter: Part No.: HS-EML-180DS Size 340Lx41.4Wx20.5H(mm) Armature Plate Dimension 130Lx33Wx9.3H(mm) Holding Force 180kgx2(350Lbsx2) Input Voltage 12 or 24VDC Current Draw 12V/300mA*2 or […]

double door magnetic lock

350 lbs*2 Double Door Magnetic Lock

350 lbs*2 Double Door Magnetic Lock, Security Door Electromagnetic Lock 180kg*2 Holding Force Access Control, Electromagnetic Locking Maglocks, 12/24VDC Double Door Electromagnetic Lock, Wooden door Glass door Electric Lock, Metal door Fireproof door Magnetic Lock Double Door Magnetic Lock Technical Parameter: Part No.: HS-EML-180D Size 340Lx41.4Wx20.5H(mm) Armature Plate Dimension 130Lx33Wx9.3H(mm) Holding Force 180kgx2(350Lbsx2) Input Voltage 12/24VDC+10% Current Draw 300mAx2 at 12VDC 150mAx2 at […]

350lbs holding froce magnetic door lock

350lbs Holding Froce Magnetic Door Lock

350lbs Holding Froce Magnetic Door Lock, Electromagnetic Door Lock, 12V / 24V Electromagnetic Single-Door Lock Access Control System, 180kg Holding Froce Electromagnetic and Electromechanical Locks, Standard Magnetic Single Door Lock Magnetic Door Lock Technical Parameter: Part No.: HS-EML-180 Size 170Lx41.4Wx20.5H(mm) Armature Plate Dimension 130Lx33Wx9.3H(mm) Holding Force 180kg(350Lbs) Input Voltage 12/24VDC+10% Current 12V/300mA 24V/150mA Suitable Wooden door , Glass door ,Metal […]

single door magnetic lock with signal output

Single Door Magnetic Lock with Signal Output

Single Door Magnetic Lock with Signal Output, 180kg Holding Force Single Door Magnetic Lock, 350 lbs Standard Electromagnetic Locks, 12V/24V Single Door Unmonitored Electromagnetic Lock, Electro-MagLock Single Door Magnetic Lock with Signal Output Technical Parameter: Part No.: HS-EML-180S Size 183Lx41.4Wx20.5H(mm) Armature Plate Dimension 130Lx33Wx9.3H(mm) Holding Force 180kg(350Lbs) Input Voltage 12/24VDC+10% Current 12V/300mA 24V/150mA Signal Lock status detection signal output Suitable […]

magnetic mini lock with signal output

Magnetic Mini Lock with Signal Output

Magnetic Mini Lock with Signal Output, 70kg Holding Force Single Door Mini Magnetic Lock, Electromagnetic 12/24v Home Office Warehouse Gate Door Lock 70kg/140 lbs Magnet, Electromagnetic Mini Lock, Electromagnetic Locking Systems Magnetic Mini Lock with Signal Output Technical Parameter: Part No.: HS-EML-70S Size 90Lx39.5Wx20H(mm) Armature Plate Dimension 75Lx33Wx9.5H(mm) Holding Force 70kg (155Lbs) Input Voltage 12 or 24VDC Current 12V/240mA or 24V/120mA Suitable […]

single door mini electromagnetic lock

Single Door Mini Electromagnetic Lock

Single Door Mini Electromagnetic Lock, 70kg Holding Force Mini Magnetic Lock, 155Lbs Mini Electromagnetic Locks, EM Lock, Electromagnetic Magnetic Door Lock Access Control Ssytem, Electromagnetic Lock Face Mount, Bond Sensor, Door Switch Mini Electromagnetic Lock Technical Parameter: Part No.: HS-EML-70 Size 90Lx39.5Wx20H(mm) Armature Plate Dimension 75Lx33Wx9.5H(mm) Holding Force 70kg (155Lbs) Input Voltage 12 or 24VDC Current 12V/240mA or 24V/120mA Suitable File Cabinet ,Display Cabinet […]