Abstract: A tire size reduction/wire separation system comprising a drive shaft; a plurality of rotors mounted on the drive shaft, each rotor having axial slots with a rotor mounted knife removably secured within each slot; and an independent housing supporting the drive shaft and rotors. The independent housing has a central region with stationary knives. The roots and crests of the stationary knives are matingly oriented and respect to the roots and crests of the rotor mounted knives The independent housing also has lateral regions including an annual wear ring vertically secured to the axial ends of the rotors. Each lateral region also includes a wear liner with a circular opening with a diameter greater than the exterior diameter of the wear rings.