This work presents a dynamic model for prediction of flow and output size distribution of cone crushers. The main purpose of the model is for simulation of closed-loop control using the Closed Side Setting (CSS) and the eccentric speed as manipulated variables. The idea of modeling crushers as cascaded zones is adopted throughout this work.That capacity, the length,the stroke,and the compression ratio of each zone are taken into consideration. Simulation result are presented in ter from of the Crusher Preformance Map (CPM) and the dynamic response for production of different size classes to steps input in โอเมก้า and CSS. The simulation also include operation with recycling of oversize output,as well as the total size output was simulated