In this paper. an analytical scientific approach is presented for the design and analysis of an air-turbine-driven paint spray spindle. and it is used to improve further the design concept of the existing spindle applied in automotive coating and paint spraying applications. The current spindle on the market can operate at a maximum speed of 100. https://www.roneverhart.com/Nova-Medical-Phoenix-Rise-UP-Rollator-Upright-Rolling-Walker/