1. Mobile crusher application The mobile crusher (mobile crushing and screening plants) is applied to multistage crush large materials, and then screen the discharges according to their different specifications. The whole set plants is widely used to mine, building material, highway, rail way and hydropower industries, etc., finish crushing and screening operations at one time, produce required size and output for consumers. 2. Mobile crusher features and benefits ííthe mobile crusher (plants) has the advantage of reasonable matching, unobstructed discharge all line, reliable working, convenient operation, high efficiency and saving energy. Especially the mobility is very good, so it can extend with the raw material places or the construction place, and it can also make multiple matching, get to different product requirements. 3.Mobile crusher composition and working principle The mobile crusher (mobile crushing and screening plants) is composed of primary crushing and screening station and secondary one, belt conveyor, etc. Every crushing station is an independent working unit, they can respectively assume their different responsibility, and the belt conveyer is responsible for material transmitting and piling up between each crushing station.