Common permanent magnets with multi poles magnetizations are 4 poles, 6 poles, 8 poles or more which depend on the dimensions and the application of the magnets.
Neodymium bonded magnets are typically made by mixing neodymium powder with a polymer binder such as epoxy or nylon. This mixture is then molded into the desired shape and cured to form a solid magnet. The binder helps hold the neodymium powder together and provides stability and durability to the magnet.
It is convenient to manufacture multi-pole magnetized, excellent performance consistency and uniformity, are widely used in all kinds of micro motors and sensor systems
Halbach Array magnet arrangement is designed to produce a strong and directed magnetic field on one side while minimizing the magnetic field on the opposite side.