Pot Magnet

A pot magnet, also known as a cup magnet, is a permanent magnet (usually neodymium or ferrite) encased in a steel shell. This design concentrates the magnetic field on one side, enhancing holding power and durability.

Pot magnets are widely used in industrial, commercial, and DIY applications. Common uses include holding, mounting, gripping, positioning, or lifting metal objects and fixtures.

The term “pot” refers to the cup-like steel casing that surrounds the magnet. This casing increases the magnetic force and protects the magnet from damage during use.

Neodymium pot magnets offer stronger magnetic force in compact sizes and are ideal for heavy-duty or precision applications. Ferrite pot magnets are more affordable, corrosion-resistant, and suitable for lighter tasks or outdoor use.

Pot magnets come in various sizes and pull strengths. Depending on the model, they can hold anywhere from a few kilograms up to over 100 kg (220+ lbs) when used on clean, flat steel surfaces.

Yes—especially ferrite pot magnets, which are naturally corrosion-resistant. For neodymium versions, choose models with protective coatings like nickel, epoxy, or rubber for better performance in outdoor or humid environments.

Pot magnets retain their strength for many years under normal conditions. However, extreme heat, strong impact, or exposure to demagnetizing fields can reduce their magnetic performance over time.