Widely used on machining, mould producing industry. Using high-performance permanent magnetic materials.Strong in magnetic suction, patent circuit design, remanence almost zero. High safety factor, maximal breakaway force is 3.5 times rated lifting power. High safety factor, maximal breakaway force is 3.5 times rated lifting power. Handle switches with safety twis, easy for single-hand operation, more safety and conveience. "v" style design at the bottom, of lifter, can lift opposite round steel or steel board. Without electricity, magnetic lasting popularity, more safety on using, aside may operated at open country. 1set/1ctn