Magnet crane with rotating trolley is a special product equipped with electromagnetic chuck that used to lift iron or steel blocks, cylinders and so on. It consists of bridge, crane traveling mechanism, trolley, electric equipment and electromagnetic chuck. Both traveling mechanism and trolley motors are special motors for canes, large starting torque and loading capacity. Magnetic retentive is 10 minutes after power shut. The shape of electromagnet can be designed according to adsorptive goods