A crusher for crushing solid material, the crusher comprising a frame; at least one crusher rotor arranged rotatably to the frame, including crusher blades secured to the circumference thereof and crushing the material; a yielding counterblade structure arranged for co-operation with the crusher blades of the crusher rotor to concurrently crush and cut said material, the counterblade structure being arranged to yield when encountering non-crushable material and when overloaded; and and a yielding, downwardly openable set of screens that is arranged below the crusher rotor at a selected axial distance from the crusher blades of the crusher rotor, wherein the counterblade structure is linked to the frame of the set of screens and made turnable towards it in a yield situation with respect to the pivoting shaft; and that the set of screens is linked to the crusher frame on the opposite side of the crusher rotor with respect to the counterblade structure and its pivoting shaft and to be downwardly collapsible about the pivoting shaft of the set of screens, characterized in that the whole consisting of the set of screens and the counterblade structure is supported to a common yielding structure, one end of the yielding structure being supported to the crusher frame and the other end to the counterblade structure between its free end and pivoting shaft, the set of screens integrated in the counterblade structure may open about its pivoting shaft enabling removal of the foreign object caught between the set of screens and the crusher rotor via an open jaw provided between the feeding funnel and the counterblade structure. a frame; at least one crusher rotor arranged rotatably to the frame, including crusher blades secured to the circumference thereof and crushing the material; a yielding counterblade structure arranged for co-operation with the crusher blades of the crusher rotor to concurrently crush and cut said material, the counterblade structure being arranged to yield when encountering non-crushable material and when overloaded; and and a yielding, downwardly openable set of screens that is arranged below the crusher rotor at a selected axial distance from the crusher blades of the crusher rotor, wherein the counterblade structure is linked to the frame of the set of screens and made turnable towards it in a yield situation with respect to the pivoting shaft; and that the set of screens is linked to the crusher frame on the opposite side of the crusher rotor with respect to the counterblade structure and its pivoting shaft and to be downwardly collapsible about the pivoting shaft of the set of screens, characterized in that the whole consisting of the set of screens and the counterblade structure is supported to a common yielding structure, one end of the yielding structure being supported to the crusher frame and the other end to the counterblade structure between its free end and pivoting shaft, the set of screens integrated in the counterblade structure may open about its pivoting shaft enabling removal of the foreign object caught between the set of screens and the crusher rotor via an open jaw provided between the feeding funnel and the counterblade structure.