The magnet assembly composed of a U-shaped ferromagnetic iron shell and a rectangular magnet is called channel magnet.It is used as rectangular mounting pot magnet. Depending on the length, countersunk holes will be set in the middle or near both ends of the channel magnet to be screwed on other surfaces with countersunk head screws.The rectangle iron shell not only enhances the grip of the magnet, but also protects the fragile magnet from damage caused by impact.We are leading channel magnets supplier,which have neodymium channel magnets and ferrite channel magnets for sale.