Abstract: This article introduces a type of conveyor for large aluminum ingots. It is specially designed on the automatic transfer line for the aluminum ingot loading and unloading on the large scale gantry milling machine. The conveyor utilizes the double output shaft decelerator and non-play coupling. The conveyor can achieve not only larger bearing capacity, less vibration, and lower noise, but also the synchronized transmission of the supporting mechanism with multiple rollers. And the supporting roller mechanism is designed to maintain the aluminum ingots automatically centered and prevent deviation, which guarantees improved reliability and high efficiency.