What is a pot magnet?

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.  

The steel shell helps the Neodymium Pot Magnet by increasing its holding power and providing the magnet with added strength and stability.

Pot magnets are often used as magnetic bases and magnetic holders for large supermarket ceiling signs.

Types of pot magnet: bi-pole, countersunk, internal threaded, stud and through hole  

There are five forms of pot magnet: bi-pole, countersunk, through hole, internal threaded, and stud.

There are many ways to use a pot magnet. To illustrate their applicability, here are a few examples:  

1. Magnetic light fittings

Internal threaded stud pot magnets can be used as part of a light fitting for a magnetic down light. The magnet is attached to the end of the light to hold it onto the metal in a ceiling.

2. Exhibition display signs

Countersunk pot magnets can be used to attach an exhibition display sign to a stand for marketing purposes, e.g. at a trade show.

3. Holders

Internal threaded Neodymium Pot Magnet With Hook with the added hook accessory can be used to hang items such as mugs to a fridge door.

4. Magnetic bases

Deep internal threaded pot magnets can be used as a magnetic base for gauges e.g. an articulated gauging arm. An articulated gauging arm is used to precisely position objects within metrology (the science of measurement).

http://www.neodymium-magnete.de/product/neodymium-pot-magnet-with-hook.html