Crushing plants are of great interest in reducing particle size of rocks and ores as milling operations need to consider sustainable development. Since the crushing plants operate under harsh conditions and involve very abrasive material, multiple factors can influence their performance. This paper assesses a number of factors affecting the performance of a crushing plant by addressing the critical design parameters and consideration of ore characteristics, operability and maintainability. Due to the fact that the ore properties should remain the same during milling, its control may become difficult for yield and quality of a product. However, an operation factor can contribute positively to the performance if it is well managed by experienced operators. The present paper also considers the operational, instrumental, mechanical and maintenance aspects of crushing plant, focusing on the capacity and quality.