Disc, block, ring or pot magnet: what is the difference?
Short answer: a disc magnet is the general choice, a block magnet fits on a straight edge or in a slot, a ring magnet has a hole for a screw, and a pot magnet is a magnet in a steel pot that is strong on steel and has a mounting option. Below is the comparison.
Comparison
| Disc | Block | Ring | Pot | |
|---|---|---|---|---|
| Shape | Round and flat | Rectangular | Round with hole | Magnet in steel pot |
| Mounting | Sticking, gluing, drilling | Sticking, gluing, in a slot | Screw through the hole | Threaded bushing, threaded stud, drill hole, or gluing |
| Strong point | Versatile | Large flat surface | Easy to screw | Strong on steel |
When to choose which?
Disc magnet
For most general applications. See which disc magnet to choose?
Block magnet
For a flat contact surface or installation in a slot. See which block magnet to choose?
Ring magnet
If you want to screw the magnet in place. See which ring magnet to choose?
Pot magnet
For a secure magnetic attachment to steel. Read why a pot magnet is strong in why are pot magnets so strong? and the selection guide is in which pot magnet to choose?
Still not sure?
Also keep in mind that quality, coating, and holding force vary by product. Read the overview by shape or ask the Magnet Specialist using the magnet advisor.
