The automatic electromagnetic dryer, Automatic rectangular tin can lining lid bottom cap drying machine, covers a wide range of cans. The adjusting range is wide and the two conveyor belts are designed as V-shaped structure. The cans are conveyed smoothly. The guide can be designed with lifting function, which is convenient and quick to adjust. Man-machine interface in Chinese and English, modular storage of parameters, easy to operate, and with fault self-diagnosis function, safe and reliable.