Compared to the hook crane, the advantages and disadvantages of the electromagnetic crane
No electricity, no work 5, electromagnet is too heavy, and every time you start hanging, you waste energy.
Faults; 1, power consumption is big 2, can lift heavy weight too simple 3, the weight that can lift at once is limited
Advantages; 1, you don't need to be able to get a hook for the lifting and landing, and you can screen for objects that need to be hoisted (such as steel).
