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2. Mill (grinding) - Wikipedia

   en.wikipedia.org/wiki/Mill_(grinding)

   SAG is an acronym for semi-autogenous grinding. SAG mills are autogenous mills that also use grinding balls like a ball mill. A SAG mill is usually a primary or first stage grinder. SAG mills use a ball charge of 8 to 21%. [9] [10] The largest SAG mill is 42' (12.8m) in diameter, powered by a 28 MW (38,000 HP) motor. [11]

3. Mo (grist mill) - Wikipedia

   en.wikipedia.org/wiki/Mo_(grist_mill)

   Mo (Chinese: 磨; pinyin: mò; lit. 'mill') [1] [2] were stone implements used for grinding wheat in ancient China. [1] [2] It was a rotary quern millstone powered by a hand-operated crank fixed at the top to grind and pulverize grains, wheat, and rice into flour.

4. George Peake (inventor) - Wikipedia

   en.wikipedia.org/wiki/George_Peake_(inventor)

   George Peake (c. 1722 – 1827) was an African American inventor who invented a hand mill for grinding grain. [1] [2] [3] Life.

5. Millstone - Wikipedia

   en.wikipedia.org/wiki/Millstone

   Roman olive mill or Trapetum Hand mill used to make argan oil by hand. A melting pot of African, Eastern and Mediterranean civilizations, Morocco has preserved tools and techniques from different eras. The Volubilis site, located in Mauritania Tingitana (northeastern Morocco), features grain and olive mills from the Roman period (1st century ...

6. Gristmill - Wikipedia

   en.wikipedia.org/wiki/Gristmill

   Allied Mills flour mill on the banks of the Manchester Ship Canal in North West England, 2010. A gristmill (also: grist mill, corn mill, flour mill, feed mill or feedmill) grinds cereal grain into flour and middlings. The term can refer to either the grinding mechanism or the building that holds it.

7. Grinding machine - Wikipedia

   en.wikipedia.org/wiki/Grinding_machine

   Pedal-powered grinding machine, Russia, 1902. A grinding machine, often shortened to grinder, is any of various power tools or machine tools used for grinding. It is a type of material removal using an abrasive wheel as the cutting tool. [1] Each grain of abrasive on the wheel's surface cuts a small chip from the workpiece via shear deformation.