This product is mainly used in the field of aluminum processing and is an important component of the logistics transportation system for aluminum coil processing. The mother car includes the mother car, the first sleeve conveyor used to support and transport the sleeve, the mother car saddle used to support the material coil, and the mother car used to lift and transport the material coil. There are walking tracks corresponding to the elevated warehouse and each rolling mill in the workshop, and the trolley is used to transport the aluminum coils from the workshop to the buffer rack, as well as to transport the aluminum coils from the buffer rack to the second conveyor. This product adopts extreme frequency enhancement method to ensure positioning accuracy while running at high speed. This product eliminates the connection barriers between finished product outbound and inbound, providing customers with convenient digital control over product storage and inbound/outbound, greatly reducing manual input and output time.