Automation is widely implemented into manufacturing industries to improve productivity, product quality and to save time. Lear Automotive Pvt. Ltd. Nashik is also among those leading manufacturing plant which are doing automation of their processes. This report deals with the same and contains concept and design of rotating mechanism which will rotate a rack mounted on it, containing assembly parts, automatically.The mechanism used is Geneva mechanism. This mechanism is widely used in various applications such as stamping units, bottle filling plants, watches etc. this mechanism is used to get intermittent motion from one rotation. This rotating mechanism is pneumatically operated for cost efficiency and precision.The whole system is automated through logic circuits like PLC/Arduino. The input to this circuit is taken through sensors like colour sensors or proximity sensors. Logic circuit output is connected to the input of pneumatic circuit. Logic circuit after input from sensors gives output which activates the pneumatic circuit. This gives rotation to the rotating mechanism which is connected to pneumatic circuit.