Permanent magnet supplied under two conditions, Magnetized or no magnetized, is usually not marked its polarity. If the user require, we could mark the polarity by the means agreed on. When placing the order, the user should inform the supply condition and if the mark of the polarity is necessary.
The magnetization field of permanent magnet is related to the permanent magnetic material type and its intrinsic coercive force. If the magnet need magnetization and demagnetization, please contact with us and ask for technique support.
There are two methods to magnetize the magnet: DC field and pulse magnetic field.
There are three methods to demagnetize the magnet: demagnetization by heat is a special process technique. demagnetization in AC field. Demagnetization in DC field. This asks for very strong magnetic field and high demagnetization skill.
Geometry shape and magnetization direction of permanent magnet: in principle, we produce permanent magnet in various shapes. Usually, it includes block, disc, ring, segment etc. The detailed illustration of the magnetization direction is below:
Directions of Magnetization
(Diagrams Indicating Typical Directions Of Manetization)
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oriented through thickness |
axially oriented |
axially oriented in segments |
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oriented laterally |
multipole oriented in segments on outside diameter* |
multipole oriented in segments on one face |
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radially oriented * |
oriented through |
multipole oriented in segments on inside diameter* |
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all available as isotropic or anisotropic material |
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* only available in isotropic and certain anisotropic materials only |
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radially oriented |
diametrical oriented |
