The aim of this project is to study existing Gravity Roller Conveyor system and optimize the critical part like roller, C-channel etc. to minimize the overall weight of the assembly without hampering its structural strength. Here the roller is optimized by changing the material of roller such as composite material i.e. Carbon fiber & C-channel is optimized by changing their cross sectional area. It also involves geometrical and finite element modeling of existing design and optimized design. Geometrical modeling is carried out by using Creo 2.0 and finite modeling in Hypermesh 11.0. Results of Static and Modal analysis of existing design and optimized design are compared.