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While a pot is not actually a shape per se, the AMF Pot Magnet category includes block and disc magnet shapes as well as magnets that contain Ceramic, Neodymium and Alnico magnetic materials. Pot magnets combine these shapes and materials with a steel casing that covers the exterior of the magnet to form an assembly with more magnetic strength and far more durability than standard magnets. The metal casing protects the brittle magnet from damage and simultaneously increases magnetic field strength by deflecting most of the field downwards to the uncovered base. The result is a magnetic holding tool that is versatile, highly effective and in many applications is far more practical than fasteners or glues.

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Pot magnets made with neodymium are extremely powerful and have excellent holding capacity. Ceramic Pot magnets are far less powerful but have high resistance to corrosion and are very cost-effective compared to Neodymium products. Alnico Pot magnets have excellent heat tolerance and good corrosion resistance but are relatively expensive and weak in magnetic energy.

Pot magnet assemblies that are made from varying magnetic materials are usually fitted with practical attachments or fixing holes. These can include hooks, eyelets, male or female threaded holes, round holes and countersunk holes. The assemblies are often designed to make the Pot Magnet easy to attach to any type of surface or to help suspend non-magnetic items from ferrous surfaces. Some Pots with an eyelet are used to attach a rope for magnetic metal retrieval. Another popular Pot magnet assembly uses several Neodymium disc magnets arranged in a circular or square pattern and capped with a steel casing. The entire assembly is encased in rubber and a male or female attachment thread is added. This type of Pot magnet assembly is used to magnetically attach equipment to painted metal surfaces such as machinery or vehicles and prevents paint damage.

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The Pull Force listed for each magnet is based on lifting 10mm thick steel from a horizontal surface. Magnets on a vertical surface (of 10mm thick steel) are generally able to hold around only 30% of the pull force listed in the product description. This is due to the effects of gravity and the lack of friction between the surface and the shiny magnet. Read More