This magnet is a custom-shaped ring magnet, the material is rare earth neodymium, the appearance of the black surface is epoxy black coating, there is a groove on the side of the magnet, which is to cooperate with other parts of customer products and processing, our factory can be according to customer needs for grooving, punching, cutting corners, chamfering, edging and other processing, if you need a quote, processing samples can contact online customer service.
Epoxy coated neodymium magnets are particularly suitable for magnets exposed to wet or corrosive environments, epoxy coatings can extend their service life, and can also provide insulation properties, such as your magnets do not need to be used in harsh environments galvanizing or nickel plating can reduce costs.
Other magnet with groove or hole:
Hollow cylindrical neodymium magnets with side grooves