A height-adjusting device for a gripping and transporting mechanism for containers having a lifting cylinder comprising a cylinder base , a cylinder tube , a piston arranged sealingly slidable in the cylinder tube , a cylinder cover and a first and second piston rod connected to the piston , wherein the first and second piston rod are guided out of the cylinder tube through the cylinder cover in sealingly sliding manner by their end opposite the piston and the two piston rods are arranged eccentrically in the piston , wherein the first and second piston rod are arranged in the cylinder tube , wherein the first piston rod has at least one first fluid path and the second piston rod has a second fluid path able to be pressurized by a pressurized fluid at the end of the piston rod opposite from the piston and the first fluid path passes through the piston and communicates with a first cylinder interior at the cylinder base-side of the piston and the second fluid path communicates with a second cylinder interior (3") at the cylinder cover-side of the piston , wherein a cylinder liner arranged coaxially with the symmetrical axis of the lifting cylinder is provided which has a liner base on the opposite end of the piston rod from the piston , wherein the cylinder liner is open toward the cylinder base of the cylinder tube and arranged on the outer lateral surface of the cylinder tube so as to be slidably displaceable in the axial direction of the lifting cylinder , wherein the fluid paths are at least partly accommodated in the liner base of the cylinder liner and accessible from the outside for pressurizing with pressurized fluid, wherein the height-adjusting device comprises a threaded rod, wherein at least one tapped hole is inset into the liner base of the cylinder liner for screwing in the threaded rod so that the vertical lift of the cylinder liner can be limited vis-à-vis the cylinder cover . wherein the first and second piston rod are arranged in the cylinder tube , wherein the first piston rod has at least one first fluid path and the second piston rod has a second fluid path able to be pressurized by a pressurized fluid at the end of the piston rod opposite from the piston and the first fluid path passes through the piston and communicates with a first cylinder interior at the cylinder base-side of the piston and the second fluid path communicates with a second cylinder interior (3") at the cylinder cover-side of the piston , wherein a cylinder liner arranged coaxially with the symmetrical axis of the lifting cylinder is provided which has a liner base on the opposite end of the piston rod from the piston , wherein the cylinder liner is open toward the cylinder base of the cylinder tube and arranged on the outer lateral surface of the cylinder tube so as to be slidably displaceable in the axial direction of the lifting cylinder , wherein the fluid paths are at least partly accommodated in the liner base of the cylinder liner and accessible from the outside for pressurizing with pressurized fluid, wherein the height-adjusting device comprises a threaded rod, wherein at least one tapped hole is inset into the liner base of the cylinder liner for screwing in the threaded rod so that the vertical lift of the cylinder liner can be limited vis-à-vis the cylinder cover . <EOS>