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With the proven use of gearless drive technology the limitation of AG SAG mill size due to gearing constraints has been eliminated is the world 39 s leading supplier of gearless AG SAG mills

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TECHNICAL AND COMMERCIAL BENEFITS OF GEARLESS MILL DRIVES FOR GRINDING APPLICATIONS M Ahrens ABB Switzerland J Gonser ABB Switzerland Abstract Gearless mill drives are a well established solution for grinding applications

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By this summer a grinding mill that is bigger around than a Boeing 747 will turn chunks of copper ore into gravel sized bits for smelting and refining The largest ring gear will make it happen

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RENK epicyclic gears are used e g in central ball mill drives since 1974 when RENK has supplied the first epicyclic gear for a 2 5 MW ball mill featuring 2

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Selecting Inching Drives for Mill and Kiln Applications

The inching drive also known as a barring or auxiliary drive is an important component of any mill or kiln installation It is used for maintenance and inspection purposes as well as an emergency auxiliary drive to keep kilns rotating when the main motor fails

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