China Neodymium And Ferrite Magnets Manufacturer & Supplier 
Previously in the company's another website has introduced to the difference between single-sided magnets and double-sided magnets, today again at the request of users to introduce the difference between single-sided multi-pole magnets and double-sided multi-pole magnets.
Single-sided multi-pole magnet and double-sided multi-pole magnet refers to the different ways of magnetic field distribution, the following is a brief introduction.
Single-sided multi-pole magnet refers to the magnet only one side with a number of even poles (multi-pair poles), the other side is almost no magnetic, this magnet is usually a bar or round, ring-shaped.
Double-sided multipole magnets are magnets that have an even number of poles on both sides of the magnet, such as 4-pole, 6-pole, 8-pole, and so on.
The picture below shows a 8 pole ring-shaped magnet with inner diameter magnetization
Single-sided and double-sided multi-pole magnets their differences are mainly reflected in the following aspects.
1, the number of poles: single-sided multi-pole magnet only one side with multiple poles area, while the other side is no polarity (or called unipolar). Double-sided multi-pole magnet is both sides have more than one polarity region.
2, magnetic circuit: single-sided multi-pole magnets are relatively simple magnetic circuit, the magnetic flux is small. And double-sided multi-pole magnet can form a magnetically closed loop, the magnetic flux is larger.
3, manufacturing process: double-sided multi-pole magnet production process is more complex, the cost is also higher.
4, application: single-sided multi-pole magnets are suitable for applications that require a one-way directional magnetic field, while double-sided multi-pole magnets are suitable for applications that require a two-way magnetic field.
Simply put, the main difference between the two is whether both sides have magnetic poles and the size of the magnetic flux, which determines the advantages and disadvantages of the two in the actual application of the choice.
Related single-sided multipole magnet products;
Axial single sided multipole neodymium magnet ring 58 poles
Encoder single-sided multipole ferrite ring magnet 34mm x 2.5mm