Horseshoe magnet, also known as c-shaped magnet or u-shaped magnet, is a classic shape of AlNiCo magnet and recognized as the most universal symbol for permanent magnet and magnetism all the time. AlNiCo can be manufactured through either casting or sintering process, but almost all of AlNiCo horseshoe magnet are belonging to cast AlNiCo magnets. AlNiCo horseshoe magnet was mainly served to the holding applications in the early days, then basically used as educational facilities to demonstrate magnetism and magnetic field nowadays.
Shape Factor of AlNiCo Horseshoe Magnet
Shape of AlNiCo horse magnet was initially designed as a substitute for AlNiCo bar magnet as it generates a much stronger magnetic field. N pole and S pole of horse magnet lie in the same plane and next to each other which permits magnetic flux lines to flow through a relatively direct path between two pole and concentrates the magnetic field. In addition to enhancing pull force, AlNiCo horse shoe magnet can also significantly reduce demagnetization. Permeance coefficient Pc of AlNiCo disc magnet or AlNiCo ring magnet is weaker and slighter higher in AlNiCo rod magnet or AlNiCo block magnet. Horseshoe shape can be regarded as an extreme version of AlNiCo rod magnet which has infinitely long length and high Pc value.
