Design according to the feature and the performance of wood, wood pallet and tree roots, with PLC control. To achieve the flexible and efficient state on the machine's hydraulic system and drive system. The wood shredder use close-packed square structure rotor blades, can be used multiple times and extending the blade life. Adopt frequency controlled hydraulic system, make highly efficiency. This type shredder use dual drives, and the fluid couplings with flexible drive, make the machine runs smoothly with slow shock, it improved the life of the machine. The product capacity can be reach 0.5~20ton/hour.