A method and crushing device for coarse-grained material. The crushing device includes one first axially rotatable grinding mechanism and a second grinding mechanism which is fixed with respect to the first axially rotatable grinding mechanism. The second grinding mechanism accommodates the first axially rotatable grinding mechanism and is in operative connection with the first axially rotatable grinding mechanism for the purpose of crushing the coarse-grained material. The axially rotatable grinding mechanism has one transport channel for the respective material to be crushed. The transport channel includes a first section extending axially and a second section which adjoins the first section at an angle and passes through an outer lateral surface of the axially rotatable grinding mechanism.