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The mill used for this comparison is a diameter by meter long ball mill with a 5000 HP drive motor. It is designed for approximately 90 per hour. This type twocompartment mill is a state oftheart shell supported cement finish mill. The torque and time requirements of the mill with the ball

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These mills typically grind ROM ore in a single stage. A large example of such a mill was converted from a singlestage milling application to a semi autogenous ballmillcrushing circuit, and the application is well described. This refers to highaspect AG/SAG mills. Ball Charge Motion inside a SAG Mill

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The experience gained from installation and operation of these mills enables us to offer mills of up to 35,000 installed horsepower or more. Today a single grinding line with a Gearless SAG mill and appropriate ball mills can process over 100,000 mtpd.

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Jul 28, 2008· Page 1 of 2 Ball mill motors posted in Newbie Questions: Hello, I am trying to build my own ball mill and I'm shopping around for a motor on ebay. I know I'm looking for something in the 1/2 horsepower to 1/4 range but I'm not sure about rpm and other specifications. What is the ideal specs of a ball mill motor. Also, does anyone know a store that sells pillow block bearings?

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speed of the mill. Thus, the SAG mill motor has 72 poles and the ball mill motors have 56 poles. • Excitation transformer and excitation converter with full wave control. The excitation transformer is fed at kV and its secondary is connected to the 6pulse excitation converter. • The power section protection system, overvoltage

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Our combined experience in ball mill design and process equipment development totals more than 60 years and allows us to put a unique spin on steel and lined mills. Particle size reduction of materials in a ball mill with the presence of metallic balls or other media dates back to the late 1800’s. The basic construction of a ball mill is a ...

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The operation of the main mills is crucial for the production at a mine. Ball and SAG mills are one of the most expensive pieces of equipment designed without redundancy, thus they can quickly become the bottle neck of the whole process, as the productivity of the plant is dependant on the availability of the mills and their motors.

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