The rotating direction of the drum of Shanghai Tiandi coal machine is beneficial to the coal loading and the stability of the machine. According to the relevant public information, the principle of determining the rotation direction of shearer drum is beneficial to coal loading and the stability of the machine. In order to push coal with a conveyor, the rotating direction of the drum needs to be consistent with the spiral direction of the drum. For the drum rotating counterclockwise (standing on the side of the goaf to see the drum).