Autogenous / semiautogenous mills
The Metso autogenous / semiautogenous mills are utilized to grind run-of-mine rock or primary crusher discharge.
The feed size to this mill is limited to the maximum size that can be practically conveyed and introduced into the mill.
The mill product is either finished size ready for processing or an immediate size ready for final grinding in a ball mill, pebble mill, or a VERTIMILL
TM.
Wet grinding is accomplished in a slurry of 50 to 80 percent solids. AG/SAG mills can accomplish the same size reduction work as two or three stages of crushing and screening, a rod mill, and some or all of the work of a ball mill. Because of the range of mill sizes available, AG/SAG milling can often be accomplished
Grinding Circuit Design
AG/SAG milling can be accomplished with a variety of flowsheets. The optimum flowsheet should be established during the testing of the ore.
Common
flowsheets include:
- AG-Single Stage
- AG in a closed circuit with a crusher
- AG with a crusher + ball mill
- SAG-Single Stage
- SAG with ball/VERTIMILLTM
Metso's process engineers welcome the opportunity to assist you with circuit and circuit control design as well as start-up, operation, and optimization
of the milling plant.
Attachments:
Brochure AG SAG MIlls EN (568 kB) 
Brochure AG / SAG mills CHI
Brochure AG SAG mills RU
