The invention relates to a mobile crusher 2 that can be displaced on four caterpillars and that comprises a supporting frame 20 a large hopper 31 an apron conveyor 32 a sizer 34 and an intermediate conveyor 36 for use in strip mining CA2757341A1 CA 2757341 CA2757341A CA2757341A1 CA 2757341 A1 CA2757341 A1 CA 2757341A1 CA }