The main goal of this document was to showcase the design possibility regardin the automated nozzle changing system for the laser cutting machine. Since one of the main trends in the metal processing industry is the need for the automation; implementing such a system on a laser cutting machine would be highly beneficial for the productivity rate of the machine. Physics and laser cutting process in general is also covered in this document to show the advantages and disadvantages of the laser cutting usage in today's industry. Theoretical analysis showed that the usage of laser cutting technology is highly benfitial today and will probably evolve even further in future. The design process has determined that the number of elements used in a automatic laser nozzle changing system is rather low and can easily be found on the market. This also indicates that in the case of the desired replacement, components can be easily bought. Through consideration of different possible component layouts, it is concluded that a wide range of different torque transmission ways through the system is possible to allow the desired linear movement in the system. The position of the nozzle housing is also very easily adjustable