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When using a synchronous motor we recommend having 200% starting torque, 120% to 130% pullin torque, and 225% pullout torque. These assume no greater than a 10% voltage drop at the motor terminals. VBELT Ball Mill DRIVE Vbelt or polyV drives are generally used on grinding mills consuming 350 HP or less.

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Squirrel cage motors are the most commonly used induction motors, but the main drawback in them is their poor starting torque due to low rotor resistance. (Starting torque is directly proportional to the rotor resistance).But increasing the rotor resistance for improving starting torque is not advisory as it will reduce the efficiency of the motor (due to more copper loss).

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The 24'' x 39.5'' Ball Mill The Copper Mountain ball mills are 7315 mm [24 feet] in diameter and 12040 mm [39.5 feet] long. They are overflow discharge ball mills with inside diameters of 7315 mm [24 feet] and grinding lengths of 11887 mm [39 feet]. Each Ball mill is

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A Model 360 Grinding Mill Clutch (GMC) with 60 in. diameter friction discs installed on a ball mill at one of the world''s largest (and oldest) open pit copper mines in Mexico. Smooth Operators: Wichita multiplate clutch technology smooths out damaging torque spikes during grinding mill startup. By Richard MayberryWichita Clutch Product Manager

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ball mill motor torque calculations eduioncare . ball mill drive motor choices Artec Machine Systems. The time has come to rethink our approach to mill drive motors because of the growth in size of newer ball mills, the starting torque restrictions of some of the newer mill drive configurations, and . speed is given by the following calculation:.

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A Model 360 Grinding Mill Clutch (GMC) with 60 in. diameter friction discs installed on a ball mill at one of the world''s largest (and oldest) open pit copper mines in Mexico. Smooth Operators: Wichita multiplate clutch technology smooths out damaging torque spikes during grinding mill startup. By Richard MayberryWichita Clutch Product Manager

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