The research portrays the outline and development of a novel mechanical patternator to measure the mediocre impingement density of fluid spray exit from a nozzle. The patternator was designed for specific applications, i.e., spray impingement cooling of hot metal surfaces. The design analysis and fabrication of the patternator were based on the parametric requirement of the impingement quenching experiments. The operating fluid employed in the research was ordinary water abetted with an array of 2 to 4 bar air pressure. The quantity of water was hoarded by the patternator, and spray density was computed. The impact of the process parameters, for instance target height, air, and water pressure on the trespass density during spraying, was critically examined so that these data would be the reference for cooling applications. The investigational outcomes divulged that the spray distribution was elliptical, as expected. There was observed a great influence of nozzle height on the spray distribution. The controlling parameters are then optimized by using response surface methodology for the maximum mass impingement density and the optimum value found to be 6612.5 Lpm2 h for lower level of air pressure and focus height and higher value of liquid pressure.