Disc for disc screen

A disc for a recycling apparatus, comprising:

• a disc core comprising a first lip and a second lip, extending radially between the first lip and an outer disc core ridge, the outer disc core ridge extending radially from a center passage, the center passage comprising a concave portion and a convex portion;
• and
• an outer flexible portion removably mounted to the disc core to project beyond the disc core to contact waste material being processed by a recycling apparatus as the shaft member rotates;
• wherein the outer flexible portion comprises ridges that mate with the second lip and the outer disc core ridge fits in between the ridges.

A disc and shaft assembly for a disc screen of a recycling apparatus configured to separate mixed recyclable materials according to size, comprising:

• a shaft having opposite ends configured to be rotatably supported in a frame of a recycling apparatus;
• a plurality of discs mounted at spaced intervals along the shaft to rotate with the shaft and configured for classifying a stream of mixed recyclable materials;
• each disc comprising an outer flexible portion, comprising convex portions and concave portions situated within the interior of the outer flexible portion;
• a disc core connected to the outer flexible portion with a mating connection to convex portions and concave portions situated within the interior of the outer flexible portion;
• the shaft extending transversely through bores within the plurality of discs;
• and
• each outer flexible portion material is shaped for engaging materials to be classified and propelling the materials in a conveying direction when the disc core is rotated.