Ferrite magnet systems
A ferrite pot magnet offers good holding power and is versatile in use – for simple fastening tasks, these magnets are highly recommended. A magnet with a ferrite core is weaker than a neodymium magnet, which is why ferrite cup magnets are often cheaper than neodymium magnet systems.
However, they offer the same advantages as other pot magnets: they are robust and their holding power is increased by the steel cup.
We offer pot magnets with a variety of mounting options. A thread in the form of a bush or a pin facilitates assembly and ensures a secure hold. Pot magnets are often used for temporary fixtures. Common applications include hanging various signs or fixing ropes. For this reason, we now also offer ferrite magnets with hooks or eyelets in our range.
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Ferrite pot magnets or raw magnets: what's the difference?
Ferrite pot magnets have some distinct advantages over conventional raw magnets. Basically, pot magnets with a ferrite core are nothing more than raw magnets glued into a larger steel cup. The free edges are filled with epoxy or a plastic ring. This step is very important – the ferrite core should only be in contact with the steel cup at the back. If the magnet were to be flush with the edges, a magnetic short circuit would occur. As a result, the ferrite pot magnet would no longer have any magnetic force on the intended holding surface.
This is the key advantage of ferrite pot magnets: the combination of the raw magnet and the steel casing diverts and strengthens the field lines. The result is a pot magnet that exerts a strong magnetic force on the holding surface. At the same time, no magnetic force escapes to the outside, as the remaining surfaces are shielded. Another advantage is that the steel cup can be threaded. This guarantees easy installation and a secure fit, whereas a raw magnet usually has to be glued.
Hard ferrite pot magnets – properties and applications
Despite many similarities, ferrite magnet systems differ from neodymium flat grippers in some aspects. For one thing, there is the lower adhesive force, but there are also differences in temperature resistance. While neodymium magnet systems are only heat-resistant up to 80°C, ferrite flat grippers can withstand temperatures of up to 200°C! Another advantage of ferrite magnets is that they are rust-resistant. Ferrite magnet systems can therefore be used outdoors. It should be noted that only the magnet is rust-resistant! The steel cup can start to rust over time.
We offer ferrite pot magnets with various mounting options:
- without thread
- with internal thread
- with threaded bush
- with threaded pin
- with conical countersink
- with cylindrical countersink
- with hook or eyelet