Assembly of a tintometric machine and a trolley, said machine comprising an external frame, defining an internal area that houses a dispenser system; said dispenser system, being comprised in the tintometric machine, can dispense a fluid, e.g. a paint, in particular a dye, into a vessel or container, when said vessel or container is positioned in a dispensing station comprised in said machine; said dispenser system comprises a plurality of canisters or containers and one or more dispenser mechanisms, each one comprising at least one pump and at least one valve assembly; said canisters or containers are connected to the one or more dispenser mechanisms; said trolley comprises: - a supporting top, whereon at least one container can be positioned; - rotary elements, e.g. wheels, allowing said trolley to be moved on a plane; - a gripping element, through which the user can grip the trolley for exerting a force in order to move the trolley; • said dispensing station comprises a housing into which said trolley can be positioned; • said trolley comprises an actuating device that can move said supporting top for the purpose of changing at least the dimension along a vertical axis of the same supporting top; characterized in that: the assembly comprises a plug/socket system, wherein a first part of the plug/socket system is located on the trolley and a second part of the same plug/socket system is located in the dispensing station, the parts of the plug/socket system can be assembled together when said trolley is placed into the housing of the dispensing station; said plug/socket system can, when in the assembled configuration, conduct an electric current; and in that said trolley being not permanently secured to said tintometric machine, but movable and releasable from said tintometric machine, with said plug/socket system in a disassembled configuration, for moving said vessel or container away from said tintometric machine and putting said vessel or container in another place, or vice versa, thereby facilitating the user in transporting said vessel or container. said dispenser system, being comprised in the tintometric machine, can dispense a fluid, e.g. a paint, in particular a dye, into a vessel or container, when said vessel or container is positioned in a dispensing station comprised in said machine; said dispenser system comprises a plurality of canisters or containers and one or more dispenser mechanisms, each one comprising at least one pump and at least one valve assembly; said canisters or containers are connected to the one or more dispenser mechanisms; said trolley comprises: - a supporting top, whereon at least one container can be positioned; - rotary elements, e.g. wheels, allowing said trolley to be moved on a plane; - a gripping element, through which the user can grip the trolley for exerting a force in order to move the trolley; • said dispensing station comprises a housing into which said trolley can be positioned; • said trolley comprises an actuating device that can move said supporting top for the purpose of changing at least the dimension along a vertical axis of the same supporting top; - a supporting top, whereon at least one container can be positioned; - rotary elements, e.g. wheels, allowing said trolley to be moved on a plane; - a gripping element, through which the user can grip the trolley for exerting a force in order to move the trolley; • said dispensing station comprises a housing into which said trolley can be positioned; • said trolley comprises an actuating device that can move said supporting top for the purpose of changing at least the dimension along a vertical axis of the same supporting top; • said dispensing station comprises a housing into which said trolley can be positioned; • said trolley comprises an actuating device that can move said supporting top for the purpose of changing at least the dimension along a vertical axis of the same supporting top; characterized in that: the assembly comprises a plug/socket system, wherein a first part of the plug/socket system is located on the trolley and a second part of the same plug/socket system is located in the dispensing station, the parts of the plug/socket system can be assembled together when said trolley is placed into the housing of the dispensing station; said plug/socket system can, when in the assembled configuration, conduct an electric current; and in that said trolley being not permanently secured to said tintometric machine, but movable and releasable from said tintometric machine, with said plug/socket system in a disassembled configuration, for moving said vessel or container away from said tintometric machine and putting said vessel or container in another place, or vice versa, thereby facilitating the user in transporting said vessel or container.