The vortex tube is a very simple thermo-fluidic apparatus which generates low temperature and high temperature air streams. The inlet fluid is tangentially compressed into the inlet nozzles of vortex tube. The purpose of the submitted research is to discuss the thermal characteristics of vortex tube with aluminum material by changing some of working parameters which include pressure of the entry air and cold mass ratio. The values of inlet air pressure include (4, 6, 8, 10 bar), as well as the values of cold mass ratio, includes values from 0.4 to 0.9 by increment of 0.1. In the present investigation, the vortex tube is manufactured from aluminum material and the entire generator is made of polymer material which allows more lightness in weight of construction of vortex tube. The experimental outputs reveal that at 20 oC of inlet air temperate with 10 bar inlet air pressure the optimum hot air temperature reached 125 oC and the optimum cold air temperature maintained -14 oC at the same operation conditions. Moreover, the results of the present study were compared with previous published research work. Consequently, the outcomes of this study exhibited that the vortex tube with aluminum material enhanced the hot temperature separation by 70 % as well as more highly cold temperature separation closely to other empirical outputs.