Closed sweeper is a professional environmental cleaning equipment, it can be directly during cleaning work to dust, stone, iron cut, cinder and other collected hopper, and can not afford to dust, do not pollute the environment. Is a very environmentally friendly industrial cleaning equipment. Because of its large area cleaning, cleaning speed, high efficiency, environmental protection, etc., are widely used in municipal cleaning, coal plants, carbon plants, cement plants, ports, shipyards and other industries and applications