Abstract: A material aerating and mixing machine having a material elevator which elevates, mixes and aerates the material to be processed. The material from the elevator is discharged onto a pair of conveyors, a cross conveyor that can be side shifted for windrow turning, and a discharge conveyor that is pivotally mounted for swingable movement in a horizontal plane into a different positions, one position being in line with the cross conveyor for truck loading, another at an angle for stack turning, and a third position where the conveyor is folded for windrow turning or transport. Each of the conveyors is independently powered depending upon the mode in which the machine is operated.