HANGZHOU TENGYE MAGNETIC MATERIALS CO., LTD.

Axial Ring Magnet

What is a axial ring magnet?

Axial ring magnet means axially magnetized ring magnet. It’s one of the commonest magnet types in both industrial and consumer industry. Neodymium magnets are the strongest magnets commercially available, which are made of iron, boron, and rare earth alloys such as praseodymium-neodymium. Neodymium ring magnets are commonly used in holding applications and most of them are axially magnetized.

Axial magnetization means that a ring magnet is polarized on the two ends. The magnetic flux goes from one end to the other.

axially magnetized ring magnet

Important Dimensions of Axial Ring Magnet

To describe the size of a standard ring magnet, three dimensions are needed. They are outer diameter (OD), inner diameter (ID), and thickness (THK). For a countersink ring magnet, countersink diameter and countersink depth are needed in addition to those three dimensions. Some pot magnets use axially magnetized ring magnets.

Axially Ring Magnet: magnetized in sectors

It’s also possible to axially magnetize a ring magnet in sectors. A special magnetizing coil needs to be designed according to the size and sector numbers of the ring magnets. A typical application of axial ring magnets magnetized in sectors is magnetic perfume cap. Perfume with magnetic cap feels higher end just because the cap opens automatically by the opposite magnetic field when rotating the cap by a certain degree.

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