This pelletizer knife is a type of blade that is 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.

Other terms used for these blades are: granulator blades, pelletizer blades, pelletizing cutter blades, granulating knives, die face cutter blades, die face blades, hot die face cutter blades, and granulator cutter knives, indicating slight variations in processes that these knives can be used for.

Pelletizer knives are also used in the food industry for various cutting applications.