Intelligent quenching crane is mainly used for hoisting high-temperature profiles or bars and for carrying out the quenching process. After the high-temperature bars are released from the oven, they are transported by a flat car to the designated location. The heat-treatment crane runs in place and lifts the high-temperature bars for heat treatment in quenching pool, finally the bars were lifted and placed to the designated position, and wait for the instruction before proceeding to the next working cycle. The heat bar temperature is 1050℃ and the environment is very hot and humid. The biggest highlight of the entire process is Unmanned operation and Automatic operation.