Can Ferrite Magnets Be Magnetised With Multiple Poles on Single Face?

If you have any questions regarding ferrite magnets, please visit the ‘Frequently Asked Questions’ section on the Carichi Magnets website, where you’ll find answers to many ferrite-related queries. Today’s question is: Can ferrite magnets be magnetised with multiple poles on a single side? How is this achieved?

First, the answer: ferrite magnets can indeed be magnetised with multiple poles on a single face. This applies to circular, ring-shaped and square magnets, amongst others. We have sample displays on our website, and I will include product links at the end of this article.

In this type of single-face, multi-pole magnetisation, one face of the ferrite magnet features multiple N and S poles; this face exhibits strong magnetism, whilst the opposite face has virtually no magnetic properties.

Single-sided 4-pole ferrite disc magnet

Where are single-sided multipole magnetised ferrite magnets typically used?

To my knowledge, they are mainly used in motor control systems, rotary encoders, Hall sensors, smart home appliances and other such fields.

How is single-sided multipole magnetisation achieved in ferrite magnets?

It requires the use of a specific magnetising coil, which is placed in close contact with the end face of the ferrite, as shown in the image below.

As a supplier of ferrite magnets, our company can provide customers across various industries with standard axial and radial ferrite magnets, as well as multi-pole axial and radial ferrite magnets. Should you require a quotation, samples or have any enquiries, please feel free to contact us via WeChat, telephone or our online customer service.

A magnet with multiple magnetic poles on only one face;

Single sided 8 poles injection molded ferrite ring 25x8x5mm

2N2S 4-pole axial single-sided multi-pole ferrite ring 17mm x 4.5mm

Single sided 128 poles and 126 poles magnetic encoder ring magnet