This portable dual shaft shredder on tracks is powered by a 420HP CAT Diesel engine with only 978 hours of use. This unit is a high torque, low speed primary shredder. It will work well for processing all type of wood waste, demolition debris, industrial waste, white goods, cardboard paper rolls, mattresses, many plastics (including wind turbine blades), and much more. This unit is still under factory warranty and is in excellent condition. Call today for more details!!