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Multi-pole Permanent Magnets Manufacturer Ningbo Bestway Magnet Limited:
In brief, the choice of magnetization direction basically depends on the magnetic application of your products.
Along which magnetization direction, the performance is the highest.
Which side or surface of the magnets do you mainly want to use please?
The outer circular surface or the inner circular surface or the flat surface
To magnetize through outer diameter to inner diameter, the magnetic performance on outer circular surface is the highest.
To magnetize from inner diameter to outer, the magnetism on inner circular surface is the highest.
Multi-poles Outer Diameter Magnetization:
Okay. I think I understand. You are asking where to place the magnetization fixture...
For magnetic fields strength, outside is better. However, I want to be sure that the outside of the ring has a nice sinusoidal transition between poles.
8 Poles NdFeB Magnets Manufacturer China Rare Earth Magnet Limited:
We noted it. The magnetization orientation you desired is 8 poles through outer diameter.
For your request of sine wave, our engineering said the outer diameter is large and the pole width is too big, sine wave is not likely to meet. Anyway, our engineering will try to make the bonded permanent magnets in this direction.