Development of the high stable rare-earth permanent lifter

According to the characteristic of transfer of magnetism and mechanical force,rare-earth permanent magnetic lifter was studied and designed.The permanent magnetic lifter that was designed not only overcomes such faults as wastage of energy,small safety coefficient,heavy body and operation with dragging cable which exist on the electro-magnetic lifter,but also has such advantages as stable properties,simple structure,convenient operation,etc.It is a practical lifter that can be widely applied.