FAQ - Frequently Asked Questions (and their answers!)
Is the adhesive force of several stacked magnets equal to that of a single magnet of the same size?
The coating and unevenness of magnets reduce the adhesive force of the pile compared to an equally high single magnet.
Uncoated and perfectly stacked magnets are comparable though to an equally high single magnet of the same quality.
The reduction due to coating and unevenness, however, is rather small and the bigger the single magnet is the less it is noticeable.
Therefore, if a magnet is not available in a desired size, you could combine several magnets alternatively.
Please note: The force between the top magnet and the rest of the pile might be much smaller than the force between the pile and the steel plate. Hence, under pressure the pile could rip apart somewhere in the middle, even when the theoretical adhesive force was not reached. This is a disadvantage of the magnet pile compared to an equally high single magnet.
