Cone crushers, also known as conical crushers, break rock between an eccentric rotating head and a bowl. The rotating head is covered by a wear-resistant mantle.The large pieces are broken once between the two jaws, then they gradually descend into the crusher where they continue to be broken until the pieces are small enough to pass through the narrow opening at the bottom of the breaking space. A cone crusher can crush a variety of rocks, from medium to hard. The way a cone crusher operates is similar to how a gyratory crusher does, but in a cone crusher the slope in the breaking space is not as steep.