Materials recovery facility, processes raw garbage and turns it into purified commodities like aluminum, PET, and cardboard by processing and crushing (compressing and baling) it.
Burr mill or burr grinder, a mill using burrs to crush the material, usually manufactured for a single purpose such as coffee beans, dried peppercorns, coarse salt, spices, or poppy seeds
VSI mill (vertical shaft impactor mill), a mill that comminutes particles of material into smaller (finer) particles by throwing them against a hard surface inside the mill
A wet mill performs wet-milling: steeps a substance in water to remove specific compounds
Wiley mill, a specific group of grinding mills manufactured under the name Thomas Scientific