What are pot magnets?

Understanding pot magnets: A pot magnet is, in essence, a magnet encapsulated in a steel shell. The steel shell serves to significantly increase the magnet's power when it comes into direct contact with a magnetic surface. It is thus advised not to remove the steel shell from the magnet. Also, the steel pot makes the magnet less fragile. And even if the magnet cracks, it will still work as if nothing happens as the steel pot hold the magnet together with glue.

We offer an array of ferrite pot magnets and neodymium pot magnets, although our selection predominantly features neodymium magnets.

Neodymium pot magnets

Pot magnets crafted with neodymium and a steel pot are recommended for indoor usage as they are not inherently weatherproof and may rust over time. However, you can apply a rubber cap to shield the pot magnet for suitable outdoor use as well. This rubber cap creates a distance between the magnet and its counterpart, consequently reducing the magnet's force. But even through rust, the magnet will still work, depending on the thickness of the rust layer.

The majority of neodymium pot magnets are designed to withstand temperatures up to 80°C. However, it's preferable to utilize the pot magnets at a standard room temperature - and not too close to the maximal working temperature.

Ferrite pot magnets

Ferrite pot magnets can be conveniently used outdoors, tolerating nearly all types of weather. Our ferrite pot magnets have a temperature threshold of up to 50°C, which is below the usual tolerance for ferrite magnets. But this is because of the construction of the ferrite pot magnets.

Counterpart for a pot magnet

To maximize the magnet's full strength without any loss, it's advisable to employ a metal plate that is either identical in diameter or marginally larger than the pot magnet. You can choose from our array of countersunk metal plates or adhesive-backed metal plates.

It's also feasible to use a neodymium or ferrite magnet as a counterpart. Nevertheless, this will not allow you to fully leverage the pot magnet's strength, and therefore, selecting magnets with higher force is essential.

Why can't I stack 2 pot magnets on top of each other?

You cannot stack two pot magnets directly on top of each other. They can only be aligned side by side, as depicted in the image below:

The adhesive side of the pot magnet has the same polarity. Attempting to place one pot magnet atop another will cause them to repel each other. However, the steel shell remains magnetically conductive – attracting the pot magnet. Hence, the pot magnets will settle next to each other.

Magnetpartner boasts a diverse range of magnets, suitable for any project you might envision. Our dedicated team is ready to guide you to the perfect magnet type during our business hours, every weekday. Contact us, and we'll supply you with a selection of links to magnets, each tailored to offer the optimal shape and strength required for your specific application.