Vacuum device for collecting light and heavy material

The invention relates to a vacuum device for collecting light and heavy material. A vacuum device has a motor-driven blower wheel with suction side having a blower inlet opening for supplying air and a pressure side; and an intake pipe at the suction side of the blower wheel has an intake opening; a pressure channel is formed at the pressure side of the blower wheel. The intake pipe is provided with a discharging opening for sucking a first collected material sucked by a suction air flow, and a second collected material passes through blower inlet opening into the pressure channel for discharge through blow-out opening. According to the invention, the discharge opening is positioned in an end of the intake pipe and is formed by an unloading opening, and a blower inlet opening is formed in a wall of the intake pipe. The blower inlet opening, in longitudinal direction of the intake pipe, is positioned between discharge opening and intake opening at a first spacing to the intake opening and at a second spacing t