Either pot magnet or cup magnets it is named after its shape and they both refer to the same group of magnetic products. By gluing a round shape magnet into a steel pot/cup you get a prototype pot magnet and based on that prototype there are so many extensions being made by adding different accessories, using different shape component. Some of them could look so different from the prototype pot magnet but as far as their core working principle does not change, we still call them "pot magnet". With the emerge of extension products other names are also used such as: round base magnet, hook magnet etc.
When you want to, for example, hold something, fix something, either permanently or temporarily and it could be a label, a poster, a piece of tool, a Christmas wreath, a note, etc.
More importantly, if you want to do it with ease, then you might want to choose from our wide selection of pot magnets. Pot magnets from Weizhong Magnetics Co., Ltd, the pot magnet manufacturer, come in different sizes, forces, and are mounted with different accessories to meet the application request as much as possible.
Basically, the first priority for consideration goes to holding force – the one matches the weight of the object you are about to hold. More importantly, out of safety concern, if you are about to hold a heavy object, you should choose the pot magnet like the ferrite pot magnet that offers a higher force than the weight of the object. An extra 10% higher, at least, in force of pot magnet is advised and, of course, the higher the safer as long as it is within the budget.
These simple-looking pot magnets are carefully designed following the physical practice of utilizing magnetic field strength, where, by conducting the magnetic field strength via the steel pot, an alternating-pole-pattern of; "S-N-S" or "N-S-N" is made on the holding surface of the pot magnet, and, as a result, it generates even higher holding force than using just magnet without steel pot.
The strongest permanent magnets in the world are neodymium (Nd) magnets, they are magnetic material made from an alloy of neodymium, iron and boron to form the Nd2Fe14B structure.
Cup magnets are magnets inset into steel cups that assist in mounting and increase their holding force. They are commonly used in holding applications where they are attached to a surface with a countersunk screw.
A pot magnet is a permanent magnet encased in a steel shell, which is sometimes called a pot, hence the name 'pot' magnet. A permanent magnet emits a magnetic field without the need for any electricity. Pot magnets are often used as magnetic bases and magnetic holders for large supermarket ceiling signs.
A pot magnet works by attaching itself to ferromagnetic materials with the help of its magnetic field, or to non-ferromagnetic materials with the help of fittings (such as studs and threaded holes) on the top of its steel shell. ... The larger the pull force of the pot magnet, the more material it can attract.