ABSTRACT Screw conveyor is a type of conveyor often used to move semi-solid materials. This examination will analyze the stress on the screw conveyor type 12S624R by modifying the length of the shaft. According to the Screw Conveyor Catalog & Engineering Manual, the length of each screw shaft for a screw conveyor with a diameter of 0,3 meters is about 3,75 meters, if the screw conveyor need le…