Device (1) for handling racks (2) of disposable pipette tips (20) in a laboratory automation system, the device (1) comprising at least one guide rail (6) for guiding racks (2) from a loading region (I) to a supply region (II), wherein the loading region (I) is accessible by a user or a loading means for loading at least one rack (2) on the at least one guide rail (6), wherein a plurality of disposable pipette tips (20) stored in a supplying rack (2) located in the supply region (II) is accessible by a delivering device for delivering at least one selected one of the plurality of disposable pipette tips (20) to a pipetting system, and wherein the device (1) comprises at least one moveable element, which is controllably moveable by means of a driving device for selectively enabling or disabling a removal of the supplying rack (2) from the supply region (II). A method for handling racks of disposable pipette tips in a laboratory automation system and to a laboratory automation system comprising such a device and/or adapted for carrying out such a method.