| In the case of magnets attached to conductive fixtures, eddy currents are established in the material that set up a reverse magnetic field during the extremely short magnetizing pulse. This prevents the magnetizing flux from fully penetrating the conductor, perhaps even the magnet, and reduces the field the magnet sees and sometimes also the flux path (direction of the flux) in the magnet. In these cases, it is necessary for the equipment manufacturer to adjust the LC (inductance capacitance ratio) of the magnetizing circuit to extend the magnetizing pulse width. An extended pulse generates more heat which slows the production magnetizing rate. So a careful compromise must be reached. | |||
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Discs & CylindersDisc and Cylinder magnets can be axially or diametrically magnetized. |
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| Axially Magnetized | Diametrically Magnetized | ||
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Blocks
Block magnets are defined by three dimensions: Length, Width and Thickness. To be consistent, we define the Thickness dimension along the axis of magnetization. We’re sometimes asked if we can provide block magnets magnetized through the length or width. Yes, we do have some long “bar” magnets, where the magnetization is in the longest dimension. We do still define this as the Thickness, though. |
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| Magnetized Through Thickness | |||
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RingsRing magnets can be axially or diametrically magnetized. |
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| Axially Magnetized | Diametrically Magnetized | ||
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SpheresSpheres can only be axially magnetized. There is only one possible direction. Disc and Cylinder magnets can be axially or diametrically magnetized. |
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| Axially Magnetized | |||
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Arc SegmentsArc Segment magnets can be magnetized in one of four directions. |
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| North on the Outside Face | South on the Outside Face | ||
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| Magnetized through Circumference | Magnetized through Thickness | ||
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