This portable 12’ tub grinder has swinging hammers installed in it AND it comes with the hardware to convert it to fixed hammers also. This is a one owner machine that was well maintained and mostly used for grinding bark. It has a magnetic head pulley on the discharge conveyor. This model will work well for grinding stumps, pallets, brush, C&D debris, green waste, bark, and many other types of wood waste at a rate of up to 240 yards per hour per the manufacturer. This grinder is in good condition and ready to go to work, call today for more details!!