Mill (grinding) - Wikipedia
A mill is a device that breaks solid materials into smaller pieces by grinding, crushing, or cutting. Such comminution is an important unit operation in many processes.There are many different types of mills and many types of materials processed in them. Historically mills were powered by hand (e.g., via a hand crank), working animal (e.g., horse mill), wind or water ().
Grinding Rock Machine, Grinding Rock Machine ... - Alibaba
Alibaba offers 3,201 grinding rock machine products. About 51% of these are mine mill, 9% are crusher, and 1% are other metal & metallurgy machinery. A wide variety of grinding rock machine options are available to you, such as impact crusher, jaw crusher, and raymond mill.