Abstract: A method for granulating previously molded and/or waste solid thermoplastic material for recycling, by introducing the previously molded and/or waste solid thermoplastic material into a laterally bounded granulating zone, performing cutting proximate the bottom of the granulating zone, and sweeping the previously molded and/or waste thermoplastic material within the cutting zone across the location where the cutting is performed by moving the lateral boundary over the cutting area while permitting sufficiently small cut portions of the previously molded and/or waste solid thermoplastic material to pass between the cutter and a surface defining a bottom portion of the laterally-bounded cutting zone.