The independent intelligent control system applied in QS four shaft shredder from Harden makes each cutter shaft has independent shredding and protection action which increase cutting efficiency and throughout as well. The main shaft of ordinary four shaft shredder is responsible for shredding and the second shaft is for feeding, while Harden’s four shaft shredder realizes the big breakthrough in shredding efficiency through the optimization of shredding structure and control principle.

In addition, QSH series four shaft shredders adopt cooperation drive mode with hydraulic drive and motor drive, can not only realize high torque output and flexible regulation because of hydraulic drive, but also retain advantages of high driving efficiency and economical and energy-saving with mechanical motor drive, providing disposal solution which meets the requirement of small particle size discharge.