Abstract: A pneumatic conveyor apparatus includes a separation chamber with an input port in a wall thereof. A vacuum duct has an output end connected to the input port. An auger discharge conveyor has a lower auger intake opening in a bottom portion of the separation chamber. A suction device creates an air stream flowing from the intake end of the vacuum duct through the input port into the separation chamber, and out through an upper portion of the separation chamber. A housing connects the input port to a first portion of the auger intake opening, and a screen covers a second portion of the auger intake opening such that the air stream flows from the input port into the first portion of the auger intake opening and flows out of the second portion of the auger intake opening through the screen into the separation chamber.