Magnetisation involves making a substance temporarily or permanently, by inserting a magnetic field. Substances that are not originally magnetic can be transformed to be. However, this is only true if they are ferromagnetic. Ferromagnetic substances have certain properties to allow them to create and maintain their own magnetic field which is key. The main substances are iron, nickel, cobalt, and certain alloys.
There are different types of magnetising tools that can be used including industrial magnetisers, bench top/laboratory magnetisers, custom magnetising fixtures and magnet setters.
Industrial magnetisers typically have a rugged industrial design and are very adaptable to fit for different energy levels, voltage and outputs. These magnetisers are suitable for most industrial applications from simple to complex multi-pole magnetisation. Typical applications for industrial magnetisers include large Neodymium blocks, permanent magnet rotors, traction motor assemblies and magnetic bearings.
These types of magnetiser are ideally suited for small-part production normally situated within labs. They usually have a workbench area on top of the unit. They can be hard-wired in for permanent installations or have temporary plugs where lots of different fixtures are used. There are lots of safety features to prevent overheating or operation reaching too high a voltage. These magnetisers are most suitable for magnetising small multipole magnets (up to 50mm)
Magnet setters are machines used for setting permanent magnets. They can calibrate a magnet to a specific working point and magnetic field.