• Nichols Mill Master Gearmotor Replacement or Parts

    Jun 30 2013 · You could use either the complete motor or just the stator section. If you find one with a different final RPM you can swap reduction gear sets with your current motor. As you hunt for a replacement be aware that later Nichols used a standard motor with a reduction gearbox at the spindle rather than motor.

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  • M C Installs Stator Coil Connections On Massive Mill

    Marthinusen Coutts scope of work comprised the installation of stator quadrant windings on the four mill motors which were manufactured by Siemens Germany. Each SAG mill motor was

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  • Banshee 521cc 10 mil Big Bore Super Cheetah Cub Complete

    There is a 4-6 week lead time for us to build this engine. Only what is listed is included but we can add other parts like stator rotor side covers exhaust lock up etc. We assembled the motor so the parts and labor come with a warranty . It uses pump or race gas.

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  • Complete Monitoring SolutionsVibroSystM

    Complete Monitoring Solutions The online monitoring of a large Ball or a SAG Mill provides vital information on the health of the machine. More than just protection VibroSystM provides ZOOM users with autonomous data analysis and first level diagnostics that are both predictive and preventative which will significantly reduce machine downtime.

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  • Making remote mines and low ore grades economical and

    Unlike more traditional ring-geared mill driveswhere a ring-shaped gear encircles the mill and drives it through one or two pinions followed by conventional motorsGMDs work by mounting rotor poles directly to the mill body and surrounding it with the stator ring meaning the mill itself is incorporated into the motor.

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  • Banshee 521cc 10 mil Big Bore Super Cheetah Cub Complete

    There is a 4-6 week lead time for us to build this engine. Only what is listed is included but we can add other parts like stator rotor side covers exhaust lock up etc. We assembled the motor so the parts

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  • Used Motors-800-hp For SaleGrinding Mills Crushers

    CEGELEC 3000 HP Motor 1200 RPM Type SARX63016 previously used as Sag Mill Drive. Manufacturer AHLSTROM. Inventory ID 17J-SL73. View Details. HP 3000 kW 2206 GENERAL ELECTRIC 2000 HP Synchronous Motor 257 RPM 60 HZ 800 HP Motors and (1) 1000 HP Motor Housing Stator only. Inventory ID 17J-DAN01. LOT of (3) 800 HP Motors and (1

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  • Gearless DrivesSiemens

    Utah SAG mill and a 11 200 kW gearless drive for the El Teniente Chile SAG mill. In a continued call for larger even more powerful drives Siemens kept pace. In 1996 Freeport ordered the first gearless drive for a 38-foot SAG mill located at the company s Grasberg plant in

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  • INNOVATION NEWS Mills and GMDs

    The stator of the gearless motor is then wrapped around the mill. With this innovative concept the gearless mill drive (GMD) eliminates all critical reliable drive system for SAG mills. Early SAG mills had a diameter of about 32 later the stator of a 40 SAG mill is over 21 m high OCTOBER 2010 International Mining 31 INNOVATION NEWS.

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  • ABB to deliver three large gearless mill drives for

    ABB s scope of supply consists of three complete GMD systems including transformers ring motors and E-house. One 26 megawatt GMD system will be installed for a 40-foot diameter SAG mill while two 20.5 megawatt GMD systems will be installed to drive two 27-foot diameter ball mills.

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  • Wound RotorTECO-Westinghouse Motor Company

    Ball and Sag Mills Cranes Hoists Pumps Fans and Blowers Chippers Conveyors The unit s stator core features insulated low-loss high-grade electrical steel. The slot is precisely punched and balancing of the complete motor

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  • Drive Solutions for the Global Mining Industry

    drive application is a dual-pinion SAG mill driven by two 5 000 kW wound rotor induction motors (WRIM). Two TMdrive-10SPRs control motor speed by recovering rotor current and returning the power to the utility supply. Confi gured in a twin motor arrangement the motors share load in the tandem mill. The Customer Need

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  • Remote Power Station Recovery Qualitrol Corp

    SAG Mill Motor Programmed Rewind How a mining company reduced costs by over 60 with independent advice. Remote Power Station Recovery. This remote power station supplies power to a major gold mining operation. A major systems disturbance resulted in 4 of the 8 operational units at the station failing with stator earth faults.

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  • Modeling and Evaluation of Cycloconverter-Fed Two-Stator

    Abstract Typical drive configurations of high-capacity SAG mills use a two-stator-winding vector-controlled synchronous motor with a 30° shift between the two windings fed by a two-secondary delta-delta-wye power transformer and two six-pulse cycloconverters. This paper presents and evaluates three different modeling options for the SAG mill drive.

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  • SAG Mill Grinding Circuit Design

    No discussion of SAG milling would be complete without mention of refining. Unlike a concentrator with multiple grinding lines conducting SAG mill maintenance shuts down an entire concentrator so there is a tremendous focus on minimizing required maintenance time the reline timeline often represents the critical path of a shutdown (but

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  • 1 x SAG Mill Siemens Motor

    1 x SAG Mill Siemens Motor For Sale/Re-Assignment Mill Details Type of Mill SAG Mill Mill Dimensions 11 582 mm x 7 759 mm (38 x 26 ) (D x L) Default Mill Speed 7.5-8.0 RPM Mill Speed 7.56-10.08 RPM Liners Excluded Mill Drive Motor Type Wrap Around (included) Mill Drive Motor Size 19 400 KW (26 016 hp) Variable Speed Drive Yes Max.

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  • Space vector modeling of a SAG mill drive and evaluation

    Combining these motor models to two 6-pulse one 12-pulse and one ideal cycloconverters three space models of the complete drive system are developed. The space vector models are evaluated during a normal stop sequence of an 8.2 MW SAG mill drive. The stop sequence includes a decelerating ramp a holding torque and a rollback triangular

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  • 30 x 7 ft (9.1 x 2.1 m) Allis Chalmers ( ) SAG Mill

    Allis Chalmers 30 x 7 ft SAGWestinghouse AC brushless synchronous motor with spare stator 4079 HP (3000 kW)200 RPM3300 V50 Hz Mill includes Bull gearPinionsLube unitsSlide shoe bearingsLiner handlerInching drive

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  • Teco-Westinghouse Custom Synchronous Motors

    TECO-Westinghouse synchronous motor are also available with brush rigging and collector rings. The complete assembly is designed for long life and is easily accessible for inspection and routine maintenance. Made of steel or other suitable materials the collector rings are shrunk onto a steel mandrel over a Micarta insulation sleeve.

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  • Synchronous Motor for Sale DC Motors Electric Motors AC

    4 000hp Motor GE DC Motor 50/120 rpm 700v Serial # 7376936 Type MCF Excitation Amps 158.8 36 000 CFM cooling required Amps Armature 4700 Excitation Volts 550 Shunt Wound Split Stator Instruction Book GEH-709. the two Motors were used as steel rolling mill motors

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  • What Are Ring Motors For Sag Mills

    In fact the rotor of the ring motor is the mill itself and the stator is built around the mill shell. This is also the reason why the ring motor is also known as wrap-around motor. 9 12 6 18 36 Presently SAG mills are mainly driven with variable speed drives allowing the operator to react easily to the changes in ore

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  • When it Comes to Mining Bigger is Best PTE

    An SABC circuit consists of a semi-autogenous grinding (SAG) mill ball mill and crusher. A ball mill is a slightly inclined horizontal rotating cylinder partially filled with ceramic balls flint pebbles or stainless steel balls that grinds material to the necessary fineness by friction and impact with tumbling balls (Fig. 2).

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