Pot magnets — also called magnetic bases or cup magnets — combine a magnet inside a steel cup that concentrates the magnetic flux onto a single face, multiplying holding force several times over a bare magnet.
We produce pot magnets with internal or external threads, hooks, countersunk holes and eyelets, from small display bases to industrial holding magnets.
Key Specifications
| Specification | Value |
|---|---|
| Construction | NdFeB or ferrite magnet in steel cup |
| Fixings | Internal/external thread, hook, countersunk |
| Holding force | From 2 kg to 300 kg per unit |
| Finish | Zinc or nickel plating, rubber cover option |
| Applications | Fixtures, display, sensors, industrial holding |
All magnets are produced to order. Please provide grade, dimension (or drawing), magnetization direction, coating and quantity for quotation. Email sales@polemagnet.com or use the inquiry form — we reply within 24 hours.
FAQ
Pot Magnets (Magnetic Bases) — FAQ
How much force does a pot magnet provide?
A steel cup concentrates the field, so a pot magnet can hold 5–10 times more than the bare magnet alone. Our range spans 2–300 kg holding force per unit.
What mounting options are available?
Internal threads (with stud), external threaded studs, countersunk holes and hooks are all available. Rubber-coated versions prevent scratching of painted surfaces.
Do you provide free samples for testing?
Yes, sample orders are welcome. Send your drawing or specification together with the intended application so our engineers can recommend the correct grade, magnetization direction and coating before we prepare samples.
Can the factory produce to my drawing with special tolerances?
Yes. We machine, grind and inspect to customer drawing tolerances. For sintered NdFeB the standard machining tolerance is ±0.05 mm and can be tightened to ±0.02 mm with diamond grinding where the geometry allows.
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Need Custom Magnets for Your Project?
Send your drawing, grade, magnetization direction and quantity. Our engineers will reply with a quotation within 24 hours.