Special magnetisation coils are used to magnetise permanent magnets. They are designed differently for each type of magnetisation. Magnetisation is carried out with a current surge from discharging a capacitor.
Magnetisation coil for 8-pole magnetisation on the inside diameter
Magnetisation coil for 8-pole magnetisation on the circumference
Magnetisation coil for magnetisation in stripes on one surface
Magnetisation coils for axial and diametrical magnetisation
Magnetisation coil for magnetisation in sectors on one surface