A machine for shredding portions of bituminous material in the solid-state into granules in the solid-state. The machine comprises a pressing member provided with a piston which is axially mobile inside a perforated tubular body along an axis and is provided on the head thereof with an internal concave portion having a shape substantially complementary to a projecting part present in an axial end of the perforated tubular body. On the head of the piston through-openings are made, which extend radially along a direction approximately transversal to the axis and are in communication with the internal space of the concave portion.

A crushing apparatus includes a first rotary shaft member, a second rotary shaft member, a plurality of first rotary cutters, a plurality of second rotary cutters, a plurality of first spacers, and a plurality of second spacers, the first rotary cutters and the first spacers being alternately disposed in a first axis direction, the second rotary cutters and the second spacers being alternately disposed in the first axis direction, the first rotary cutters and the second rotary cutters each forming a tearing blade that protrudes in a direction perpendicular to the first axis direction, a portion of each of the first rotary cutters and a portion of each of the second rotary cutters overlapping when viewed from the first axis direction, and a gap being provided between the first rotary cutter and the second rotary cutter in the first axis direction.

An apparatus for treating leather waste includes: a main body having an inlet and an outlet; a sorting unit rotatably installed in the main body and comprising a plurality of treatment parts having processing components to sort leather inserted into the main body through the inlet; and a power unit configured to rotate the sorting unit.

An apparatus for treating leather waste includes: a main body having an inlet and an outlet; a sorting unit rotatably installed in the main body and comprising a plurality of treatment parts having processing components to sort leather inserted into the main body through the inlet; and a power unit configured to rotate the sorting unit.

Granulator mill (1) comprising a frame (10), a cutter housing (20) with a granule chamber (22) comprising at least one non-rotatable blade (24) inside the granule chamber (22), and further comprising a rotatable rotor (30) arranged inside the granule chamber (22). The rotor (30) comprises blades (32, 34) which are arranged for cooperation with the non-rotatable blade (24) for granulating waste material to granules. A normal (n) to a first opening (26a) of the granule chamber (22) is pointing substantially vertically upwards in the normal position of use of said granulator mill (1), and characterising is that the cutter housing (20) is pivotably arranged at the frame (10) by means of a first pivot means (28), for pivoting the cutter housing (20) between the normal position of use and a cleaning position. In the cleaning position, the normal (n) of the first opening (26a) of the granule chamber (22) points towards a surface plane of the substrate.

Exemplary embodiments of a chipper shredder are provided. In some exemplary embodiments, the chipper shredder can include a rotor disc having an obverse side and a reverse side, one or more chipper blades provided on the obverse side, one or more impeller blades provided on the reverse side, the one or more impeller blades being perpendicular to the rotor disc, one or more hammer blades on the reverse side, the one or more hammer blades being substantially parallel to the rotor disc, and one or more L-blades on the reverse side that extend outwardly and upwardly from a center of the rotor disc.

Exemplary embodiments of a chipper shredder are provided. In some exemplary embodiments, the chipper shredder can include a rotor disc having an obverse side and a reverse side, one or more chipper blades provided on the obverse side, one or more impeller blades provided on the reverse side, the one or more impeller blades being perpendicular to the rotor disc, one or more hammer blades on the reverse side, the one or more hammer blades being substantially parallel to the rotor disc, and one or more L-blades on the reverse side that extend outwardly and upwardly from a center of the rotor disc.

A system for perforating containers may have a first rotor assembly with a first set of rotors arranged at least partway along a first shaft, and a second rotor assembly with a second set of rotors arranged along a second shaft. The system may further have a frame that rotatably supports the first rotor assembly and the second rotor assembly in a parallel arrangement such that the first set of rotors interdigitates with the second set of rotors. Each rotor of the first set of rotors and the second set of rotors may have a hub, and one or more lobes extending outward from the hub, each of which is shaped such that, during rotation of the first rotor assembly and the second rotor assembly, the lobes perforate the containers as the containers pass between the first rotor assembly and the second rotor assembly.

Disclosed herein is a mask disposal apparatus having a serrated type crushing structure including: a main body including an inlet in which a wasted mask is put and a receiving space 110T disposed therein; and a crushing unit installed under an inlet in the main body to crush and discharge the wasted mask inserted into the inlet. The crushing unit includes: a rotary roller part provided in a cylindrical shape and having a first rotary shaft connected at the inner center thereof in a longitudinal direction; and a plurality of crushing parts having at least one serrated wheel portion having saw-teeth formed along the circumference thereof.

Disclosed herein is a mask disposal apparatus having a serrated type crushing structure including: a main body including an inlet in which a wasted mask is put and a receiving space 110T disposed therein; and a crushing unit installed under an inlet in the main body to crush and discharge the wasted mask inserted into the inlet. The crushing unit includes: a rotary roller part provided in a cylindrical shape and having a first rotary shaft connected at the inner center thereof in a longitudinal direction; and a plurality of crushing parts having at least one serrated wheel portion having saw-teeth formed along the circumference thereof.