The brush is fed through two hydraulic driven pick-up feed rotors into the processing chamber. The large 20" diameter rotor with fixed triple tipped tungsten carbide knives shreds the brush against six rows of drop forged re-cutter bars into finer material. This mulch is then forced through a fine mesh heavy steel screen. To complete the finishing operation we recommend the Gearmore Orchard Tiller with rear roller to bury the fine mulch 2 to 3 inches deep.