Use high performance magnetic material to make it smaller, lighter and hold strong. Unique magnetic design,the residual magnetism is almost zero. The safety factor is high, and the maximum pull force is 3.5 times the ratedgravity. The handle swich has safety button, which can be operated by single hand and is safe. The bottomsurface of the lifing machine has “V” groove design,the corresponding round steel of the crane, the steel plate.Without electricity, the magnetic force lasts long and USES safety. Work in the field. Itis widely used for liting andlifting of children’s steel, flat mechanical parts and the installation and handling of all kinds of molds.