Range-change gearbox device with an input shaft, with an intermediate shaft, with a layshaft, with a gearbox output shaft, with a first planetary gear set having a first transmission element, a second transmission element, a third transmission element and a drive shaft for taking a torque off the first planetary gear set, wherein the first transmission element of the first planetary gear set is non-rotatably coupled to the intermediate shaft, wherein the second transmission element of the first planetary gear set is non-rotatably coupled to the output shaft of the first planetary gear set, wherein the output shaft of the first planetary gear set is coupled to the gearbox output shaft either directly non-rotatably or by way of a gear ratio stage downstream of the first planetary gear set, and wherein a first shifting unit is designed to place the third transmission element of the first planetary gear set in a fixed position relative to the housing in at least one shifting position, wherein the range-change gearbox device has a second planetary gear set having a first transmission element, a second transmission element, a third transmission element, wherein the third transmission element of the second planetary gear set is or can be non-rotatably coupled to the intermediate shaft and the second transmission element of the second planetary gear set is non-rotatably coupled to the input shaft, characterised in that the first transmission element of the second transmission element is or can be coupled to the layshaft in such a way that a torque can be taken off at the first transmission element of the second planetary gear set from the second planetary gear set to the layshaft, and in that the layshaft can be coupled to the third transmission element of the first planetary gear set in such a way that, starting from the layshaft, a torque can be introduced at the third transmission element of the first planetary gear set into the first planetary gear set. wherein the first transmission element of the first planetary gear set is non-rotatably coupled to the intermediate shaft, wherein the second transmission element of the first planetary gear set is non-rotatably coupled to the output shaft of the first planetary gear set, wherein the output shaft of the first planetary gear set is coupled to the gearbox output shaft either directly non-rotatably or by way of a gear ratio stage downstream of the first planetary gear set, and wherein a first shifting unit is designed to place the third transmission element of the first planetary gear set in a fixed position relative to the housing in at least one shifting position, wherein the range-change gearbox device has a second planetary gear set having a first transmission element, a second transmission element, a third transmission element, wherein the third transmission element of the second planetary gear set is or can be non-rotatably coupled to the intermediate shaft and the second transmission element of the second planetary gear set is non-rotatably coupled to the input shaft, characterised in that the first transmission element of the second transmission element is or can be coupled to the layshaft in such a way that a torque can be taken off at the first transmission element of the second planetary gear set from the second planetary gear set to the layshaft, and in that the layshaft can be coupled to the third transmission element of the first planetary gear set in such a way that, starting from the layshaft, a torque can be introduced at the third transmission element of the first planetary gear set into the first planetary gear set.