Single-shaft shredder machines is used for shreddering the hard plastic, pipe, wood, electronic board and so on. The quality that you can be assured. As the shredder machine, we have been got the patent form china government at 2013. It is the ideal plastic shredder which can shreddering many many things such like bottles, big pipes, big baled films, cloths , papers or other plastics.The blade hardness at 63-65¡ã get to me:andy@plas-machinery.Com Wood packing 4.5t