Apparatus for comminuting waste materials

An apparatus for comminuting waste materials, comprising a housing, a rear bearing shield (10), a front bearing shield (14), a knife rotor (1) rotatably mounted in said front and rear bearing shields, at least one rotor knife (2) carried by said knife rotor (1) for rotation about a rotational rotor axis (4), said housing comprising two housing sections (23, 24) matching each other for forming said housing in a closed position of said housing sections (23, 24), each housing section comprising a first hinge (26, 27) hingeably securing the respective housing section to one of said rear and front bearing shields, each first hinge (26, 27) comprising a first hinging axis (26A, 27A) extending crosswise to said rotational rotor axis (4) so that said housing sections (23, 24) are tiltable in opposite directions away from each other to open said housing and toward each other to close said housing, said apparatus further comprising a clamping and locking device (33) including a clamping frame (34) and a locking member (38), a second hinge (40B) hingeably securing said clamping frame (34) to one of said housing sections (23 or 24) near one of said front and rear bearing shields (14, 10), said locking member (38) being secured to the respective other housing section (24 or 23) of said housing sections (23, 24) for cooperation with said clamping frame to lock said housing sections (23, 24) to each other, and at least one stator knife (20, 21) positioned in said housing for cooperating with said rotor knife (2).