Pelletizer knives, granulator blades, pelletizer blades, pelletizing cutter blades, granulating knives, die face cutter blades, die face blades, hot die face cutter blades, granulator cutter knives, are all names for the blades that are used to recycle plastics, such as polypropylene (PP) and polyethylene (PE) back to pellets. These pelettes are used as feedstock for various plastics manufacturing processes.
The pelletizer knives are also used in production of animal foods.