Specific force index

The specific force index depends on the shape of the object. If this is lower than the force index of a magnet at a certain distance, the magnet will attract the object. This enables us to predict the distance at which a magnet attracts objects, so that we can choose the right magnet for the application.

Magnets, such as plate and block magnets, have a deeply penetrating field. They also attract ferromagnetic particles at a distance. The capacity to attract certain objects is dependent on the magnetic conductivity of the object and its shape. Not its weight. An elongated shape is easiest to attract. This lessens as the shape becomes more cubic. A spherical shape is the most difficult to attract.

Plate and block magnets are magnets that you can easily build into existing installations.