Filling station for filling cartridges of electronic cigarettes with a liquid, the filling station comprising: - a rotary conveyor device, the conveyor device comprising: ∘ a support frame, ∘ a rotary conveyor constructed for rotating the cartridges around a main axis, ∘ an entry location where the cartridges enter the conveyor, ∘ a filling area where the cartridges are filled, wherein the filling area comprises multiple cartridge positions, ∘ an exit location where the cartridges exit the conveyor, ∘ a docking station into which a filling device can be docked, wherein the rotary conveyor further comprises: ∘ at least three rotary segments (55A, 55B, 55C), wherein each rotary segment defines a plurality of cartridge holders for holding a cartridge, and ∘ a drive system for rotating the rotary segments about the main axis from the entry location to the filling area and from the filling area to the exit location, wherein the drive system is configured to stop the rotary segments at the filling area during the filling, wherein the rotary segments are suitable for stopping in the filling area during the filling and wherein the rotary segments are moveable in the entry location and the exit location during the loading and unloading of the cartridges, - a plurality of filling devices, each filling device comprising: ∘ a support frame, ∘ at least one docking coupling for docking the filling device in the docking station, ∘ a plurality of filling nozzles assemblies for simultaneously filling a group of cartridges positioned in the filling area in the conveyor device, wherein in top view the filling nozzles are arranged according to the shape of the filling area, ∘ a nozzle actuator for moving the filling nozzles downwards and into upwardly oriented filling openings of the cartridges, wherein each filling device is constructed to be undocked from the docking station and to be replaced by another filling device. - a rotary conveyor device, the conveyor device comprising: ∘ a support frame, ∘ a rotary conveyor constructed for rotating the cartridges around a main axis, ∘ an entry location where the cartridges enter the conveyor, ∘ a filling area where the cartridges are filled, wherein the filling area comprises multiple cartridge positions, ∘ an exit location where the cartridges exit the conveyor, ∘ a docking station into which a filling device can be docked, wherein the rotary conveyor further comprises: ∘ at least three rotary segments (55A, 55B, 55C), wherein each rotary segment defines a plurality of cartridge holders for holding a cartridge, and ∘ a drive system for rotating the rotary segments about the main axis from the entry location to the filling area and from the filling area to the exit location, wherein the drive system is configured to stop the rotary segments at the filling area during the filling, wherein the rotary segments are suitable for stopping in the filling area during the filling and wherein the rotary segments are moveable in the entry location and the exit location during the loading and unloading of the cartridges, ∘ a support frame, ∘ a rotary conveyor constructed for rotating the cartridges around a main axis, ∘ an entry location where the cartridges enter the conveyor, ∘ a filling area where the cartridges are filled, wherein the filling area comprises multiple cartridge positions, ∘ an exit location where the cartridges exit the conveyor, ∘ a docking station into which a filling device can be docked, ∘ at least three rotary segments (55A, 55B, 55C), wherein each rotary segment defines a plurality of cartridge holders for holding a cartridge, and ∘ a drive system for rotating the rotary segments about the main axis from the entry location to the filling area and from the filling area to the exit location, wherein the drive system is configured to stop the rotary segments at the filling area during the filling, - a plurality of filling devices, each filling device comprising: ∘ a support frame, ∘ at least one docking coupling for docking the filling device in the docking station, ∘ a plurality of filling nozzles assemblies for simultaneously filling a group of cartridges positioned in the filling area in the conveyor device, wherein in top view the filling nozzles are arranged according to the shape of the filling area, ∘ a nozzle actuator for moving the filling nozzles downwards and into upwardly oriented filling openings of the cartridges, ∘ a support frame, ∘ at least one docking coupling for docking the filling device in the docking station, ∘ a plurality of filling nozzles assemblies for simultaneously filling a group of cartridges positioned in the filling area in the conveyor device, wherein in top view the filling nozzles are arranged according to the shape of the filling area, ∘ a nozzle actuator for moving the filling nozzles downwards and into upwardly oriented filling openings of the cartridges,