A self propelled harvesting machine for picking up nuts along with debris from the surface of the ground and separating the nuts from the debris so as to enable one person to mechanically harvest an entire crop of nuts such as pecans. The machine has a special pick-up device which utilizes spaced apart sweepers which mechanically urges material to travel through a floating head with the aid of a current of air. This action transfers the nuts into a separator where the nuts and debris are separated from one another by utilization of both air and mechanical separation means. A squirrel cage type separator finally removes the remaining debris from the nuts.
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