Abstract: A trailer mounted shredding machine for reducing solid waste materials to a chip or fragmented consistency which includes an auger having a spiral conveying flight which includes a plurality of replaceable cutting teeth. The cutting teeth cooperate with replaceable anvil teeth mounted so as to extend within a conveying drum in which the auger is rotatably mounted. Material is loaded within a receiving hopper positioned above the auger and processed material is discharged through an opening which is axially oriented with respect to the auger. The processed materials are discharged onto an elevating conveyor which is driven by engagement with the auger drive shaft.