A Slide Gate is a pan that is located under the infeed head pulley and above the discharge belt that controls and directs any material that drops through the head pulley. When the slide gate is open the material drop directly onto the discharge belt with the processed material. When closed, it discharges the material for regrind directly beneath the grinding chamber. Combined with the feed chain return pan, and this material is carried to the end of the hopper for easier clean-up. Add the infeed tailgate and the material will attempt to recirculate.