Abstract: A ground milling machine for grinding and/or removing a ground material comprises a hollow-cylindrical drum which extends in an axially longitudinal manner and on the outside circumferential area in which several milling tools are arranged for grinding and/or removing the ground material. In order to reduce abrasion it is provided that at least one face-side milling tool is arranged on the hollow-cylindrical drum in the region of at least one face side, which milling tool protrudes beyond said face side and is provided during milling to at least partly cut free the collision region (T) between said face side and the ground material to be processed. The present invention further relates to a ground milling machine with at least one such milling drum.

Abstract: The invention relates to a compaction roller having at least one rolling body with a vibratory drive which comprises a drivable exciter shaft with an unbalance. The shaft is mounted axially with respect to the rolling body and in the body. The unbalance, which comprises an unbalance cylinder arranged centrally with respect to the axis of the rolling body, is held by the exciter shaft and has an unbalance piston which can be adjusted hydraulically radially with respect to the axis of the rolling body by means of an adjusting device.