Roller press device set up for grinding feed material, in particular in the form of a roller mill, with: - a stationary fixed roller with an at least approximately stationary roller axle; - a loose roller with a roller axle that can be arranged in a variable position relative to the fixed roller; - a frame supporting at least the fixed roller and optionally also the loose roller; - at least one force application unit acting on the loose roller at a force application point; wherein the fixed and loose rollers can be mounted and positioned relative to one another, in particular by means of the force application unit, for the application of a grinding force and for mutual contact in a roller contact point or for defining a grinding gap for the feed material, wherein the loose roller is mounted with the location-variable roller axis so as to be pivotable about a pivot axis in the manner of a one-sided lever such that the relative position of the loose roller relative to the fixed roller can be defined by this pivoting movement, wherein the one-sided lever is formed between the pivot axis and the force application point; characterised in in that the swivelling axis is arranged on the tangent of the fixed roller and the loose roller at the roller contact point or, in the case of a grinding gap other than zero, the swivelling axis is arranged between the tangent of the fixed roller at the intersection of the connecting line between the fixed roller axis and the roller axis, which can be arranged in a variable position, and the tangent of the loose roller at the intersection of the connecting line between the fixed roller axis and the roller axis, which can be arranged in a variable position. - a stationary fixed roller with an at least approximately stationary roller axle; - a loose roller with a roller axle that can be arranged in a variable position relative to the fixed roller; - a frame supporting at least the fixed roller and optionally also the loose roller; - at least one force application unit acting on the loose roller at a force application point; wherein the fixed and loose rollers can be mounted and positioned relative to one another, in particular by means of the force application unit, for the application of a grinding force and for mutual contact in a roller contact point or for defining a grinding gap for the feed material, wherein the loose roller is mounted with the location-variable roller axis so as to be pivotable about a pivot axis in the manner of a one-sided lever such that the relative position of the loose roller relative to the fixed roller can be defined by this pivoting movement, wherein the one-sided lever is formed between the pivot axis and the force application point; characterised in in that the swivelling axis is arranged on the tangent of the fixed roller and the loose roller at the roller contact point or, in the case of a grinding gap other than zero, the swivelling axis is arranged between the tangent of the fixed roller at the intersection of the connecting line between the fixed roller axis and the roller axis, which can be arranged in a variable position, and the tangent of the loose roller at the intersection of the connecting line between the fixed roller axis and the roller axis, which can be arranged in a variable position.