Rotary reducing component

A material reducing apparatus comprising:

• a rotary reducing component having a central rotational axis, the rotary reducing component being rotatable in a reducing direction;
• a reducing element mount attached to the rotary reducing component;
• a reversible reducing element mounted to the reducing element mount, the reducing element comprising:
• a leading front side having a main front face, a first cutting edge, and an opposite second cutting edge being radially inwardly positioned closer to the central rotational axis from the first cutting edge;
• a trailing rear side having a mounting face;
• a front face reference plane defined by the main front face;
• a radial reference plane defined by the leading most point of the first cutting edge in the reducing direction and the central rotation axis of the rotary reducing component;
• a chip direction plane being perpendicular with the radial reference plane and passing through the leading most part of the first cutting edge;
• wherein the chip direction plane and the front face reference plane are angled with respect to one another at a chip curl angle, and wherein the chip curl angle is between about 79 degrees and about 97 degrees;
• and
• wherein the rotary reducing component has a reducing boundary defined by the outer most cutting edge of the first and second cutting edges from the rotary reducing component, and wherein the reducing boundary has a diameter greater than or equal to 26 inches and less than or equal to about 56 inches.

A material reducing apparatus comprising:

• a rotary reducing component having a central rotational axis, the rotary reducing component being rotatable in a reducing direction;
• a reducing element mount attached to the rotary reducing component;
• a reducing element mounted to the reducing element mount, the reducing element having a leading face having a cutting edge, the reducing element having a pair of side faces extending from the leading face to a rear trailing face, the rear trailing face being mounted to the reducing element mount and the side faces axially spaced from one another on the rotary reducing component, and wherein the reducing element has a radial height extending away from the rotary reducing component;
• at least one chip evacuation arrangement comprising:
• a first depth control structure having a reducing element portion circumferentially aligned and spaced from the leading face of reducing element on the rotary reducing component, the reducing element portion having a radial depth being at least half of the radial height of the reducing element;
• a second depth control structure positioned axially adjacent a side of the reducing element, the second depth control structure having a radial height immediately axially adjacent to the reducing element, wherein the radial height of the second depth control structure is less than or equal to 25% of the radial height of the reducing element;
• and
• a third depth control structure positioned axially adjacent the side of the reducing element, opposite the second depth control structure, the third depth control structure having a radial height immediately axially adjacent to the reducing element, wherein the radial height of the third depth control structure is less than or equal to 25% of the radial height of the reducing element.