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Introduction to the magnetizing direction of various shapes of magnets

November 28,2023

The direction of magnetization is the first step to obtain magnetism in sintered NdFeb magnets, which represents the position of the north and South Pole of neodymium magnets.

The shape and size of NdFeb strong magnets are different, and different shapes have their corresponding magnetization direction. The North Pole is shown in red and the South Pole is shown in gray.

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The strength of a magnet is maximized when one of its poles makes contact with a corresponding surface. With that being said, an axially magnetized circular or toroidal magnet performs optimally when one of its planes aligns with the opposite polarity plane of another circular or toroidal magnet. While this type of magnet functions best when in contact with a relative surface, it still exerts magnetic forces on its sides.

However, in such usage, its magnetic strength is relatively diminished. Familiarity with the magnetization direction will aid in determining the most suitable orientation for your product to ensure optimal efficiency.

Magnetic direction of round and cylindrical magnets:

Round magnets can be axially magnetized or radially magnetized. Axially magnetized round magnets have north and south poles on the great plane. Radially magnetized round magnets have a north and South Pole on the circular side.

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Magnetic direction of Square magnet:

Square magnet size identification: length * width * height. The last position of the general size identifier is the magnetizing surface, such as F20*15*10MM, and the magnetizing square of this magnet is 10 mm thick. If it is F20*10*15MM, then the magnetizing interview is magnetized at the 15mm surface.

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Magnetic direction of Ring magnet:

Ring magnets can be axially magnetized or radially magnetized. An axially magnetized ring magnet has a north pole and a south pole on a flat surface. Radially magnetized ring magnets have north and south poles on circular sides. It's actually similar to a circular magnet.

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Magnetic direction of Curved magnet:

The curved magnet here refers to the tile magnet, and there are four magnetization directions to choose from, as shown below.

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