BINDING MAGNETISM-DRIVEN PUMP

The utility model discloses a binding magnetism-driven pump used for electrolyzing and polishing a metallographic specimen, electrolytic thinning instruments, and delivering the corrosion fluid. The binding magnetism-driven pump adopts positive placed pump body with a binding hole, and has a magnet rotor with a pillow block. The pillow block of the magnet rotor is positioned on binding hole at the bottom of the pump body cavity, supported and by a hole wall, and the rotation of the pillow block is bound by the hole wall. The structure can overcome the phenomenon that the magnetic force driving pump makes the rotor bounced and caused by the low precision product or low precision assembly; the rotor can start agilely, and has a stable operation.