Rotor for a rock crusher

1. A wear plate for use on a rotor of a rock crusher, the rotor having a rotor body including a planar surface including at least one recess, the wear plate comprising:

a circular aperture located at a center of the wear plate;

a planar underside surrounding the circular aperture and defined by an outer perimeter;

a rim positioned about the outer perimeter and descending perpendicular to the planar underside; and

at least one protrusion extending perpendicular to the rim and toward the circular aperture, the at least one protrusion including an edge or side extending at a sloping angle relative to the rim.

2. A wear plate as claimed in claim 1 , wherein the wear plate includes at least three protrusions.

3. A wear plate as claimed in claim 2 , wherein the protrusions are equidistance from each other.

4. A rotor assembly for use in a rock crusher, comprising:

a rotor body having an upper surface and a lower surface; and

a pair of wear plates each having a circular aperture, a planar underside defined by an outer circumference and a rim positioned about the outer circumference and descending perpendicular to the planar underside, the wear plates each including at least one protrusion extending from the rim and having an edge or side that is at a sloping angle relative to the rim,

wherein the upper and lower surface of the rotor body each include at least one recess complementary to the at least one protrusion extending from the rim of each wear plates in the pair of wear plates, wherein the at least one protrusion is configured to engage the at least one recess.

5. A rock crusher, including the rotor of claim 4 .

6. A mineral material processing plant, wherein the mineral material processing plant includes the rock crusher of claim 5 .