A plastic granulator apparatus stationary cutting segment includes a segment rail having multiple arcuate spaced teeth. Each tooth of the plurality of arcuate spaced teeth has a tooth surface and is spaced to be complementary to a rotary cutter segments as a rotary cutter is rotated. The segment rail is adapted to be mounted to a granulator housing. The rail segment has a shoulder with a shoulder surface, the shoulder is adjacent to each of a set of arcuate spaced teeth. The shoulder has a shoulder surface height of between 0 and 10 mm, and a stepback distance of between 0 and 2 mm between the shoulder surface and the arcuate tooth surface. The shoulder and the arcuate tooth surface define an angle therebetween of 90° and 130°, and the shoulder surface defines an angle between 90° and 130°.

A wood chipper including: a base frame; an engine provided to the base frame; a reduction chamber provided to the base frame, the reduction chamber comprising a rotor, a reduction chamber input and a reduction chamber output, wherein the rotor is driven by the engine; a feeder input configured to provide input material to the reduction chamber input; a discharge chamber provided in communication with the reduction chamber output; a fan configured to draw air and comminuted material through the discharge chamber away from the reduction chamber and push the comminuted material out of the fan.

A cutting blade assembly establishes a bidirectional and/or multifaceted scissor-type cutting action to efficiently and effectively process various types of debris encountered by the cutting blade assembly. The assembly includes a cutting plate and a cutting hub configured for relative rotation. A cutting slot is formed in the cutting plate and intersects the axial face to define a cutting edge at the intersection of the cutting slot and the axial face. The cutting hub has a cutting arm positioned adjacent to the axial face. When the cutting plate and the cutting hub undergo relative rotation, the cutting arm passes adjacent to the cutting edge to perform a scissor-type cutting action.

A work machine having a belt tensioning system is described. A belt is engaged with an engine drive sheave and a driven sheave of a rotor having a plurality of cutting tools configured for reducing wood infeed material. An idler pulley is mounted to an idler arm that is hinged to the machine frame. An actuator is hinged to the idler arm and the frame. The actuator may be extended and retracted in order to press the idler pulley into stronger and weaker engagement with the belt in order to set the desired amount of tension in the belt. One or more sensors may be used to sense the amount of tension in the belt, and the one or more sensors may be in communication with a control system that controls the actuator to monitor and adjust the belt tension so that it is maintained within desired limits.

A work machine having a belt tensioning system is described. A belt is engaged with an engine drive sheave and a driven sheave of a rotor having a plurality of cutting tools configured for reducing wood infeed material. An idler pulley is mounted to an idler arm that is hinged to the machine frame. An actuator is hinged to the idler arm and the frame. The actuator may be extended and retracted in order to press the idler pulley into stronger and weaker engagement with the belt in order to set the desired amount of tension in the belt. One or more sensors may be used to sense the amount of tension in the belt, and the one or more sensors may be in communication with a control system that controls the actuator to monitor and adjust the belt tension so that it is maintained within desired limits.

A horizontal grinder chipper with interchangeable rotors which allows for rapid changing of said interchangeable rotors. Where the interchangeable rotors each are in the form of a cassette which can be easily inserted into and in between a first frame portion 1302 and a second frame portion 1303. A hydraulically actuated pivoting clamshell cassette covering upper portion 920 configured to pivot to an open orientation for removal of a first rotor cassette and for insertion of a second rotor cassette.

A cutter head for an underwater granulating installation has a rotor body having a plurality of cutter-retaining arms. Each of the plurality of cutter-retaining arms adjoins the outer circumference, and one cutter element is fastened on each of the plurality of cutter-retaining arms, where the rotor body in the region of each cutter-retaining arm includes at least one receptacle recess configured to receive a fastening element. The cutter element is integrally configured to have a basic body and at least one blade body. The basic body is positioned on a lower bearing face of the rotor body, and the lower bearing face extends up to at least one of the plurality of cutter-retaining arms. The at least one of the plurality of cutter-retaining arms on an upper side is overlapped by the cutter element, and the blade body includes at least one cutting edge molded thereon.

Waste separator apparatus which comprises: -a frame (11) which delimits a separation chamber (12); -a screening mesh (13) which divides the separation chamber (12) into a shredding chamber (121) and a collection chamber (122); wherein the shredding chamber (121) has a loading mouth (123) and an unloading mouth (124); - a shredder shaft (14) fixed to the frame (11) in a rotatable manner about an operating axis (A) and extending into the shredding chamber (121). The shredder shaft (14) has first cutting hammers (15) and second expelling hammers (16); wherein the screening mesh (13) faces the first hammers (15), in order to receive shredded material, and the discharging mouth (124) faces the second hammers (16). The second hammers (16) have a front edge (17) which is rectilinear and extends substantially parallel to a radial direction (C) with respect to the operating axis (A).

A shredding module of a shredding apparatus is disclosed. The shredding module includes a shredder cassette receiver and a shredder cassette received within the shredder cassette receiver. The shredding cassette includes two shredding shafts arranged in parallel and rotatable about respective rotation axes, and two sets of fingers that cooperate with the two shredding shafts to shred material. The shredder cassette is slidably movable in an axial direction of the respective rotation axes into and out of the shredder cassette receiver.

A shredding module of a shredding apparatus is disclosed. The shredding module includes a shredder cassette receiver and a shredder cassette received within the shredder cassette receiver. The shredding cassette includes two shredding shafts arranged in parallel and rotatable about respective rotation axes, and two sets of fingers that cooperate with the two shredding shafts to shred material. The shredder cassette is slidably movable in an axial direction of the respective rotation axes into and out of the shredder cassette receiver.