The EX60HD Super belt drive is our largest excavator/backhoe flail brush mower/shredder. It has all the features of the EX50HDSS- heavy-duty shroud, heavy-duty shaft, economical belt drive system, powder-coated finish, and cutting/mulching capacity up to 6" soft wood. This unit will fit on excavator/backhoes from 30,000 lbs and up.