The device has a conveyor (1) conveying grubbing fruits over a receiving hopper (2) in a water tank (3). A main conveying path (4) is started at an end of sinking horizontal bars and provided with an upwardly moving water-conducting channel. A bar tray (5) removes stones and gravel on the fruits using transportation water, and the cleaned fruits are transmitted to a feeding device (6). An arc wire (7) is diagonally arranged underneath the bar tray. The water tank, main conveying path and the bar tray are mounted on a common mobile skid base (13).
