Abstract: Device and method for descaling a workpiece that is in motion in relation to the device in a movement direction. The device includes a rotor head rotatable about a rotational axis and inclined diagonally at an angle (Y) with respect to an orthogonal on a surface of the workpiece. The device includes jet nozzles attached to the rotor head which dispense a pressurized liquid onto the workpiece at an angle of attack (?) inclined to the workpiece surface. The nozzles are fixedly attached on the rotor head such that during rotation of the rotor head about its axis of rotation, the spraying direction of the liquid dispensed from the nozzles with respect to a projection in a plane parallel to the surface of the workpiece, is aligned opposing to and at a spraying angle (?) of approximately between 170 and 190 degrees to the movement direction of the workpiece.

Abstract: The invention relates to a device and a method for descaling a workpiece, which is in motion in relation to the device in a movement direction (X). The device (10) comprises a rotor head (14), which is rotatable about an axis of rotation (R), which is inclined diagonally at an angle (?) with respect to an orthogonal on a surface (20) of the workpiece (12). Furthermore, the device comprises multiple jet nozzles (16), which are attached on the rotor head (14), wherein a liquid (18), in particular water, is dispensable onto the workpiece (12) at an angle of attack (?) inclined to the surface (20) of the workpiece (12) from the jet nozzles (16). The jet nozzles (16) are fixedly attached on the rotor head (14) such that during rotation of the rotor head (14) about its axis of rotation (R), the spraying direction (S) of the liquid (18) dispensed from the jet nozzles (16), with respect to a projection in a plane parallel to the surface (20) of the workpiece (12), is aligned opposing, i.e.