1, strong magnetic force, iron boron is the third generation of rare earth permanent magnet material, magnetic energy product between 27~50MGOE, known as "permanent magnet king", is a high coercivity and high magnetic energy product of high-performance rare earth materials.

2, the finite element method of magnetic path accurate distribution, the use of finite element method with high-speed computer analysis of magnetic path distribution of working state full load stop state zero remanence.