Automatic Lifting Magnet is made of strong magnetic material adopting ratchet wheel and pallet mechanism together with the raise of travelling crane to control the mandrill and automatically absorb and unload the materials, featuring no electricity consumption, convenient and safe in operation. It is widely used for lifting and transporting short and thick plates in the factory, dock, warehouse and transportation department. The air gas adjusting rod is equipped in particular which can adjust the magnetic force conveniently.