Large feed opening Hydraulically raised front section for ease of accessibility Simple wrench adjustment of breaker plates Massive backer bar with replaceable insert bar Simple quick impeller bar repositioning and replacement 4" high chrome impeller bars have four wear sides for maximum service life Dual locking impact bar wedge system Cast manganese monoblock primary apron 3" thick high chrome breaker apron liners on secondary apron Interchangeable breaker apron liners Interchangeable frame liners Easily replaceable, adjustable stripper bar Balanced, high strength, high inertia open disc type rotor Large spherical roller bearings, hydraulically removable, with taconite type labyrynth seals