In order for contaminants (50) that are in particular liquid or highly viscous or solid and impact in an operating portion (40b) of one or 2 processing shafts (40.1, 40.2) that rotate adjacent to each other not to reach bearings (2) of the shafts (40.1, 40.2) which are arranged axially outside of the processing portion (40b) which could damage the bearings a wiping device (6) is arranged there between which is additionally axially shielded by a bearing plate (3) and a splash guard plate (4) wherein the wiping device provides that contaminants (50) that reach the wiping section (40a) are wiped off at this location and cannot move further through the bearing plate (3) to the bearing (2) that is arranged outside of the bearing plate (3).

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.

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.

A shredder blade assembly is disclosed having a rotor configured to be mounted on a rotating shaft, the rotor having opposing faces with a plurality of angled knife receptacles and a plurality of knife inserts mounted within the plurality of knife receptacles. Each knife insert has two opposing faces and each opposing face comprises three cutting edges such that each knife insert has six cutting edges. Only one of the cutting edges is exposed at an outer peripheral edge of the shredder blade assembly during use. The knife inserts are configured to be removed, rotated (and flipped as needed), and re-mounted within the plurality of knife receptacles to expose another of the cutting edges at the outer peripheral edge of the shredder blade assembly. The knife insert may be triangular and mounted to expose one vertex to create a plurality of tooth/hook projections.

A bone grinder is provided herein. The bone grinder may have a grinding chamber, an intermediate zone, and a primary cutting element and a secondary cutting element. The intermediate zone may have a first wall and a second wall within the grinding chamber, and the intermediate zone may separate the primary cutting element from the secondary cutting element. The first wall and the second wall may slope inward such that a distance between the first wall and the second wall generally decreases from the primary cutting element to the secondary cutting element. The primary cutting element and the secondary cutting element may be positioned within the grinding chamber to sequentially perform primary cutting operations and secondary cutting operations on a bone. A drive mechanism may operatively engage the primary cutting element and the secondary cutting element.

A cardboard shredder provides a shredder for cardboard to facilitate recycling while reducing storage space needed before cardboard enters a recycling stream cutting out the middle man, thus the recycler receives uncontaminated cardboard since it is not mixed in with other materials. The manufacturer receives clean shredded cardboard for reuse, reducing headcount for the plant by reducing and eliminating their shredders being jammed with plastic. Thus, an improvement in efficiency and reduction in costs of material and water.

A comminution apparatus, a method for replacing wear parts of such an apparatus and a cutting table unit for use in such an apparatus. The apparatus includes a cutting module, a drive module and a top module. The main wear parts are present in the cutting module, which may be replaced, in its entirety or in part, without disconnecting the drive module from the apparatus or from an external power source.

A rotor is shown with an asymmetrical structure for a pump, wherein the rotor includes at least one cutting edge and at least one rounded edge, as well as the pump as such including one or more rotor(s). The rotor (1) has a first circular element (4) where a material-moving cavity (5) is provided in the first circular element (4).

A modular industrial reducing machine is provided. The reducing machine includes a removable cutting tray releasably coupled to a first and second axial endwalls in a base frame. Additionally, the removable cutting tray includes a plurality of non-rotating anvils designed to interact with a plurality of cutters during reducing operation to reduce material in the reducing compartment.

Disclosed is an apparatus for destroying the operational aspects and electronic media of a Solid State Drive (SSD) yet maintaining the physical shape of the SSD for identification. The apparatus includes a crusher box having counter-rotating rollers that are intermeshed to provide a high speed feed of an SSD wherein teeth formed on the rollers render the electron media non-accessible and impart a distinctive waffle like appearance for ease of identifying destroyed SSD's. A VFD-PID controller is used to vary the speed of an electric motor 50 with the PID having a feedback signal that allows for various target values to be set.