13 being constructed as a flat supporting structure in this embodiment example the motor 6 is an electric motor which draws the required energy from a storage battery 7 the roller 3 1 is biased by a compression spring 8 1 in a spring elastic manner in the direction of the supporting plate 13 of the storage container 11 so that a component in packaging 12 1 e g cannot escape in the direction opposite to the squeezing out direction or in the direction of arrow 17 and the entire amount of the component stored in packaging 12 1 e g is used up the roller 3 1 is connected with the motor 6 by a transmission device 9 1 in order to dispense the multicomponent compound the user actuates the release lever 10 at the handle 5 and the roller 3 1 is moved in the direction of the arrow 17 by the motor 6 and by the transmission device 9 1 with the content of the packagings being squeezed out through the dispensing opening 4 and the dispensing sleeve 18 this process is repeated until the packagings are empty the roller 3 1 is moved back into the initial position again by the motor 6 and the used storage container 11 is exchanged for a new storage container the system is then available for use again in addition to the first roller 3 1 an optional second roller 3 2 is shown in dashed lines in fig1 the second roller 3 2 is likewise biased by a compression spring 8 2 in a.