sag mill gearless drive

2021-01-21T08:01:19+00:00

Gearless mill drives - Grinding ABB

ABB’s GMD is the most powerful mill drive system in the market to power semiautogenous (SAG), ball and autogenous (AG) mills, This ’workhorse’ for grinding operations combines a robust, service-friendly and fit for purpose design to provide highest throughput, reliability

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Gearless mill drives - library.e.abb

2021-2-16  • 28 MW GMD for a 40' SAG mill • 28 MW GMD for 42' SAG mill Whether it is size or an installation at the highest altitude (4600 m.a.s.l.), ABB’s GMDs are well positioned to contribute to the building of larger and ever more powerful mills. — Leading the gearless mill drive evolution The ABB gearless mill drive (GMD) is the most powerful ...

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Gearless Drives - Siemens

2019-11-18  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 Indonesia. This gearless drive pro-

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Gearless Mill Drives Beneficiation Siemens Global

2021-5-23  SIMINE Gearless mill drives are essential pieces of equipment for the concentrator plant, contributing to the outstanding plant availability of around 95%. SIMINE Gearless mill drives furthermore help reduce the total costs and assure a high performance.

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SAG MILLING - Gearless drive system from ABB -

WESTERN AUSTRALIA – Five years in storage have failed to affect the performance of the ABB gearless drive on a SAG mill at the St. Ives gold mine belonging to GOLD FIELDS of South Africa.

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Gearless Mill Drives - library.e.abb

2021-2-17  Mill Builder: FFE Minerals, USA Mill Size: SAG Mill 38 feet/11,58 m Ball Mills 24 feet/7,32 m Ore processed: Copper/Zinc Drive Rating: SAG Mill 20,1 MW, 9,23 rpm Ball Mills 11,2 MW, 11,38 rpm Award of Contract: March 1999 Start of Operation: June 2001 ABB’s scope of supply: Four complete Gearless Mill Drive Systems including: Wrap-around ...

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SAG mills - Outotec

Gearless mill drive (GMD) technology has further expanded the use of large SAG milling allowing Outotec to produce the world's largest SAG mill of 42’ in diameter drawing power at 28 MW. Today, Outotec is the world leading supplier of gearless SAG mills

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Gearless Warp Around SAG Mill - 911 Metallurgist

2018-11-11  A gearless synchronous direct drive of the wrap-around design was selected instead, offering several inherent advantages to the owners and operators : The new mill with 10x the rated capacity could be installed in place of the old obsolete 100tph mill

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SIMINE Gearless mill drives - Siemens

2021-4-14  SIMINE Gearless mill drives – outstanding reliability for your mine The gearless concept The gearless drive avoids any contact between the rotating mill and the static parts of the motor. This allows for contin-uous workflow without maintenance on the gears or the pinions. What used to be downtime is now productive time.

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The Siemens 42ft gearless mill drive, still an ...

2021-4-15  next size Gearless Mill Drive, i.e. a 42ft mill. It is a dual design approach considering, on the one hand, the experi-ences Siemens made with Gearless Mill Drive (GMD) instal-lations over the past 40 years and, on the other hand, using computerized design tools calculating the system behavior where experience does not yet exist.

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SAG Mill Gearless Drives Go to South American

2020-4-8  Meanwhile, Siemens’ Industry Solutions Division reported it had received an order from Compañia Minera Antamina S.A. to supply gearless drive systems for a SAG mill and ball mill at the Antamina open-pit in Peru. Siemens said the award is worth approximately €20 million ($26.1 million) and is scheduled for completion in late 2010.

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Gearless mill drive (GMD) and digital services for

The company selected ABB's 26 MW gearless mill drive system (GMD) for the mine’s 40 ft SAG mill, as well as other drives, electrical infrastructure equipment and a long-term service agreement (LTSA). This is expected to reduce operating costs, improve process throughput and reliability while saving energy and keep equipment in top form.

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SAG MILLING - Gearless drive system from ABB -

In December 2001, Gold Fields acquired the St. Ives project near Kalgoorlie, and only in 2003 did the new owner decide to go ahead with the project and to install the 36-ft SAG mill and its 13.5-MW gearless mill drive at St. Ives.

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Gearless Warp Around SAG Mill - 911 Metallurgist

2018-11-11  A gearless synchronous direct drive of the wrap-around design was selected instead, offering several inherent advantages to the owners and operators : The new mill with 10x the rated capacity could be installed in place of the old obsolete 100tph mill

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Siemens modernises SAG mill gearless drive in Cadia

2012-3-27  Siemens modernises SAG mill gearless drive in Cadia Valley. Posted by Matrix on 27th March 2012 Siemens has modernised a gearless grinding mill drive at Newcrest’s Cadia Valley Operations, near Orange in New South Wales, Australia. This is the first time that a gearless grinding mill had been equipped with a Sinamics SL150 cycloconverter control.

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ABB gearless mill drive system to power SAG mill

2010-9-1  Newmont Mining Corporation selects ABB to design three gearless mill drive systems for their new high-altitude copper gold project in Peru. September 1, 2010 - ABB won an order from Newmont Mining Corporation to engineer three gearless mill drive (GMD) systems to be installed at the Yanacocha Minas Conga oxide copper gold project in Peru.

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Gearless Mill Drives Beneficiation Siemens Bulgaria

The Siemens 42-ft Gearless Mill Drive, still an evolutionary design approach? (SAG Conf. 2015) Optimization of the drive system for a cyclone feed pump (SME 2015) Increasing availability through advanced Gearless Drive Technology (CMP 2014) Design and dynamic behavior of large ring motors for grinding mills (SMMH 2012)

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Gearless Drives for Ore Conveying and Grinding -

2021-5-19  Siemens, the company that introduced Gearless Mill Drives (GMD) to mining industry started up its first GMD on a ball mill in Norway in 1980. The mill and its drive system are still in service. Today, GMDs are mainly used for SAG mills between 36 and 40 feet (10.7 to 12.2 m) and ball mills from 24 to 28 feet (7.3 to 8.5 m).

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Updates on geared vs gearless drive solutions for

2021-3-24  World’s largest geared drive – 2x8500kW – Wushan, China (operating) Among the many reasons that geared drives on large SAG mills are not favoured, is due to not having an efficient variable speed drive option (60 to 80% critical speed), which is required for process reasons.

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Increasing availability through advanced Gearless Drive ...

2021-4-16  The Gearless Mill Drive system consists of the ring motor with its feeding cycloconverter, pre-installed in an E-house. It also includes the excitation rectifier, the automation sys-tem (for mill and motor) including HMI, monitoring and diagnostic system, MCC’s (for mill and drive auxiliaries),

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SAG MILLING - Gearless drive system from ABB - Canadian ...

In December 2001, Gold Fields acquired the St. Ives project near Kalgoorlie, and only in 2003 did the new owner decide to go ahead with the project and to install the 36-ft SAG mill and its 13.5-MW gearless mill drive at St. Ives.

Get Price

ABB gearless mill drive system to power SAG mill

2010-9-1  Newmont Mining Corporation selects ABB to design three gearless mill drive systems for their new high-altitude copper gold project in Peru. September 1, 2010 - ABB won an order from Newmont Mining Corporation to engineer three gearless mill drive (GMD) systems to be installed at the Yanacocha Minas Conga oxide copper gold project in Peru.

Get Price

Gearless Mill Drives Beneficiation Siemens Bulgaria

The Siemens 42-ft Gearless Mill Drive, still an evolutionary design approach? (SAG Conf. 2015) Optimization of the drive system for a cyclone feed pump (SME 2015) Increasing availability through advanced Gearless Drive Technology (CMP 2014) Design and dynamic behavior of large ring motors for grinding mills (SMMH 2012)

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Large SAG Autogenous Mill Design Drive

2018-2-15  Gearless drive technology, originally developed to handle heat induced gear alignment problems in the cement industry, provides an alternative concept with freedom from many of the limitations of the conventional pinion gear drive train. In a gearless driven mill, the rotor becomes an extension of the mill structure, surrounded by the stator.

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Gearless mill drive system in iron ore ­processing ...

2014-7-8  ABB was recently contracted to supply gearless mill drive (GMD) systems for two 38 foot semiautogenous grinding (SAG) mills at the Serra Azul iron ore mine in Brazil. The Serra Azul mine unit, owned by MMX Mineração e ­Metálicos, an EBX Group company, is located in the iron quadrangle of Minas Gerais, next to Belo Horizonte – the heart of ...

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Gearless Drives for Ore Conveying and Grinding - Cmms ...

2021-5-19  Siemens, the company that introduced Gearless Mill Drives (GMD) to mining industry started up its first GMD on a ball mill in Norway in 1980. The mill and its drive system are still in service. Today, GMDs are mainly used for SAG mills between 36 and 40 feet (10.7 to 12.2 m) and ball mills from 24 to 28 feet (7.3 to 8.5 m).

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Siemens Supplies Gearless Drive Systems with 'Frozen ...

2006-9-15  For grinding of the ore, an SAG (Semi Autogenous Grinding) mill and a ball mill will be used. For the two ore-grinding mills, Siemens is supplying gearless ring motor drive systems supplied with power via cycloconverters. The SAG mill has a diameter of 38 feet (11.6 meters) and will be equipped with a 18 megawatts drive system.

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ABB commissions six gearless mill drives at Cobre Panama ...

2019-10-29  The six ABB gearless mill drives, which are the most powerful mill drive systems on the market for semi-autogenous (SAG), ball and autogenous

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Outotec presents the world's largest SAG mill - Outotec

2012-9-21  The mill will be driven by a Gearless Motor Drive (GMD) which at 28.0MW is equal to the largest grinding mill power ever used in the mining industry. The SAG mill design is based on Outotec's proprietary grinding mill technology, developed over decades for maximum reliability and performance.

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Go gearless with ABB’s mill and conveyor drives for more ...

2021-5-25  A gearless mill drive is a major investment for a plant and as the beating heart of the production process is essential. Thus, having knowledge of how to make most of your GMD is crucial. The following advanced digital service can enable optimized productivity at the highest level: ABB Ability™ Predictive Maintenance for grinding

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