These electromagnetic holding magnets are used in electrically operated independent clamping devices to hold open fire protection doors and exits. The doors are held open either in a fixed position or in a manually adjustable angle until they are electrically released.
Magnets for EX applications with ATEX certification are available.
Size: 42 - 70 mm with quality control
Holding force: 300 - 1568 N by quality controlled
goods
Rated torque: 1.5 - 3.0
These industrial holding magnets are units with an electromagnetic
holding system without an armature that is an open magnetic
circle for the holding of ferro magnetic parts.
The greatest holding force is dependant on the surface roughness
and component thickness.
Devices with permanent magnets and rectangular holding magnets are also available.
Size: 15 - 250 mm diameter
Max. holding force: 36 - 30000 N
(please note catalogue indications)
Rated torque: 1.4 - 90 W
Electromagnet is a type of magnet in which the magnetic field is produced by the flow of an electric current through the coil. The magnetic field disappears when the current ceases.
As a current is passed through the coil, small magnetic regions within the material, called magnetic domains, align with the applied field, causing the magnetic field strength to increase. As the current is increased, all of the domains eventually become aligned, a condition called saturation.
The main advantage of an electromagnet over a permanent magnet is that the magnetic field can be rapidly manipulated over a wide range by controlling the amount of electric current. However, a continuous supply of electrical energy is required to maintain the field.
In applications where a variable magnetic field is not required, permanent magnets are generally superior. Additionally, permanent magnets can be manufactured to produce stronger fields than electromagnets of similar size.
Electromagnets are used in many situations where a rapidly or easily variable magnetic field is desired. Many of these applications involve deflection of charged particle beams; the cathode ray tube and mass spectrometer fall into this category.
Popular uses: linear motor, electric motor, circuit-breakers, electromagnet brakes, electromagnet clutches, metal lifter, magnetic separators, and more.
These electromagnetic holding magnets are used in electrically operated independent clamping devices to hold open fire protection doors and exits. The doors are held open either in a fixed position or in a manually adjustable angle until they are electrically released.
Magnets for EX applications with ATEX certification are available.
Size: 42 - 70 mm with quality control
Holding force: 300 - 1568 N by quality controlled
goods
Rated torque: 1.5 - 3.0
