After edge-banding Sword Brushes clean panel edgings extremely effectively. To clean both edges of a panel simultaneously, a Sword Brush is mounted on the conveyor, in keeping with the guide rail, in a vertical position and perpendicular to the direction of transport. A second Sword Brush is installed, parallel to the first brush, on the opposite side of the conveyor. The Sword Brush can adjusted either manually or electrically to differing panel widths by means of an adjustment unit.