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The sights and sounds of large grinding mills in operation are impressive to even the most seasoned mill operator. Grinding systems are a symbol of the application of brute force to extract mineral wealth from nature and are a major and critical part of any mineral processing facility.

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Table of ContentsGeneral Description of the DriveAssembling and ConstructionComponent CharacteristicsDrive Evaluation The electric operation and design features of the 11,000 H.P. variable speed SAG mill gearless drive is presented. The function of the frequency-converter, control system drive and lubrication systems are described. An analysis of the harmonic characteristic in the Supply ...

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Numerous applications such as crushers, excavators, hoists and both geared and gearless conveyors and mills, are supported by the SINAMICS SL150 drive. - Mine hoist drives are equipped with 12 to 16-pole synchronous motors with salient pole rotors with a rated frequency of approx. 5 to 10 Hz operating at speeds from about 50 to 90 rpm.

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ufacture drive systems for very large power ratings, the physical limitation of a mechanical gear limits its application for driving tube mills where the power required is over 18MW. Gearless mill drive The limitation of an RMD system was overcome by ABB when it introduced the first gearless mill drive (GMD) in 1969 for the cement industry.

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CITICIC can produce below 12m autogenous mills(AG Mill) and semiautogenous mills(SAG Mill).autogenous / semiautogenous mills ( AG Mill&SAG Mill )are utilized to grind run-of-mine rock or primary crusher discharge.especially medium hard and below valuable minerals and rocks with uniformly embedded coarse grains.

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Buy Unused 36' X 20.5' (10973mm X 6248mm) Sag Mill, 15,000 Kw (20,107 Hp) Gearless Motor Drive, 50 Hz from A.M. King Industries. Request a quote online today.