Stone Crushing Industry is an important industrial sector in the country engaged (NPC) and commissioned the study with the work of reviewing the existing standards, guidelines and sitiing criteria and to evolve a Comprehensive Industry Document (COINDS) for Stone Crushers. This report is an outcome of the in-.Working principle. Mobile crushing plant is a kind of wheel type mobile stone crusher plant. It combines vibrating feeder, jaw crusher, cone impact crusher, vibrating screen on one truck body to crush and screen gravels automatically. This four-in-one crushing plant is reasonable circular crushing system to crush stone in higher efficiency.