Shredder lubrication system

A shredder cassette, comprising:

• at least one shredding shaft mounted in a cassette housing;
• wherein the at least one shredding shaft comprises a hollow shaft defining a hollow interior that provides a central lubrication delivery channel, and a plurality of openings disposed on the hollow shaft and extending from an outer surface to the hollow interior thereof for lubricating the at least one shredding shaft;
• wherein the at least one shredding shaft includes a plurality of shredding knives each having a hub and a radially outer surface including a blade, and wherein the plurality of openings open into the hub of at least some of the plurality of shredding knives;
• wherein the at least some of the plurality of shredding knives include at least one knife lubricating channel extending from an inner surface of the hub to the radially outer surface;
• and
• wherein the at least one knife lubricating channel opens to the radially outer surface at a base of the blade.

A shredding module, comprising:

• a shredder cassette receiver;
• a shredder cassette received within the shredder cassette receiver;
• the shredder cassette including two shredding shafts having shredding knives arranged in parallel and rotatable about a respective rotation axis, and two sets of fingers that cooperate with the two shredding shafts to shred material;
• wherein at least one of:
• at least one of the two sets of fingers include finger lubricating channels extending from the shredder cassette towards the two shredding shafts for supplying lubricant to the shredding knives;
• and
• at least one of the two shredding shafts comprises a hollow shaft defining a hollow interior that provides a central lubrication delivery channel, and a plurality of openings disposed on the hollow shaft and extending from an outer surface to the hollow interior thereof for supplying lubricant to the shredding knives.

A shredder cassette, comprising:

• a cassette housing;
• at least two shredding shafts arranged in parallel and rotatably mounted in the cassette housing about respective rotation axes;
• a first set of fingers arranged between the cassette housing and a first of the at least two shredding shafts;
• a second set of fingers arranged between the cassette housing and a second of the at least two shredding shafts;
• wherein at least one of the first set of fingers and the second set of fingers includes finger lubricating channels for lubricating the at least two shredding shafts;
• and
• wherein the finger lubricating channels extend in individual fingers from the cassette housing in a radial direction towards the at least two shredding shafts.