Gearless mill drives - Grinding | ABB

Our GMD eliminates all mechanical components of a conventional mill drive system, such as ring-gear, pinion, gearbox, coupling, motor shaft and motor bearings: By mounting the rotor poles directly onto the mill, the mill itself becomes the rotor of the gearless motor.

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Gearless Mill Drives | Beneficiation | Global

The SIMINE Gearless mill drives pump system significantly enhances concentrator productivity by eliminating the reducer gear between motor and pump and all corresponding maintenance. In addition, the cyclone pumps with variable speed can adjust their energy consumption to the optimized flow of pulp, resulting in energy savings of up to 30%.

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Gearless mill drives - ABB

2 GEARLESS MILL DES The gearless mill drive eliminates ring-gear, pinion, gearbox, coupling, motor shaft and motor bearings, used within a conventional mill drive system. By mounting the rotor poles directly onto the mill, the mill itself becomes the rotor of the gearless motor. Building a track record

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Gearless millsdrives - MC-m

Gearless mill drives. Discover. A gearless millsdrive system comprises: the synchronous ring motor, the three converter transformers, one excitation transformer and the harmonic filter banks, as well as the E-house containing the cycloconverter and control, the motor control centre, ...

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Gearless Drives - Siemens

been providing gearless drive systems for 40-foot SAG mills. And over the past three years the company has received ten orders for this type of mill, rated at up to 28 MW. In 2010, Siemens proudly announced the sales re-lease of a 42-foot gearless drive. The 42-foot drive al-lows throughput to be nearly doubled compared to

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Gearless millsdrives - MC-m

Gearless mill drives. Discover. A gearless millsdrive system comprises: the synchronous ring motor, the three converter transformers, one excitation transformer and the harmonic filter banks, as well as the E-house containing the cycloconverter and control, the motor control centre, ...

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gearless mill drive system - eftelworld.nl

Gearless mill drive (GMD) systems are used in mines to grind vast amounts of ore into smaller pieces for further processing. GMD systems eliminate all mechanical components of a conventional mill drive system, such as ring-gear, pinion, gearbox, coupling as well as motor shaft and bearings, thus offering better energy efficiency, superior reliability, increased process availability and longer ...

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Gearless Mill Drives | Beneficiation | Österreich

The SIMINE Gearless mill drives pump system significantly enhances concentrator productivity by eliminating the reducer gear between motor and pump and all corresponding maintenance. In addition, the cyclone pumps with variable speed can adjust their energy consumption to the optimized flow of pulp, resulting in energy savings of up to 30%.

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

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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Gearless mill drive system in iron ore ­processing ...

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 the Brazilian mining state.

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GRINDING: ABB commissions six gearless mill drives at ...

Two 28 MW gearless mill drive systems (GMDS) are operating in the mine’s 12-metre SAG mills and four 16.5 MW GMDS are employed in 26 ball mills along with associated control systems. “Gearless mill drives are the ‘workhorses’ for grinding operations which are at the heart of any mine.

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Cobre Panama starts up gearless mill drive systems ...

In all, two 28-megawatt gearless mill drive systems (GMDs) are in use at the mine's 40ft SAG mills, and four 16.5MW GMDs are employed in 26 football mills. "Gearless mill drives are the 'workhorses' for grinding operations, which are at the heart of any mine," …

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ABB successfully commissions largest gearless mill drive ...

ABB’s delivery included one gearless mill drive system (GMD) for a 40-feet semi-autogenous mill and two low-speed dual pinion ring-geared mill drive systems (RMDs) for two 26-feet ball mills ...

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ABB’s new Gearless Mill Drive generation: Maintenance ...

The gearless mill drive (GMD) has been continuously developed since its introduction in 1969. The structural design, the electrical parts and of course motor monitoring and control have all experienced major developments that have enabled larger, more efficient operations and higher productivity.

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Increasing Availability through Advanced Gearless Drive ...

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

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gearless mill drive system - eftelworld.nl

Gearless mill drive (GMD) systems are used in mines to grind vast amounts of ore into smaller pieces for further processing. GMD systems eliminate all mechanical components of a conventional mill drive system, such as ring-gear, pinion, gearbox, coupling as well as motor shaft and bearings, thus offering better energy efficiency, superior reliability, increased process availability and longer ...

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Gearless Mill Drive Reliability | ABB Ability

The gearless mill drive eliminates all mechanical components of a conventional mill drive system, such as ring-gear, pinion, gearbox, coupling, motor shaft and motor bearings. By mounting the rotor poles directly onto the mill, the mill itself becomes the rotor of the gearless motor.

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ABB's six gearless drives at heart of first copper ...

Two 28 MW gearless mill drive systems (GMDs) are operating in the company’s 40 ft SAG mills and four 16.5 MW GMDS are employed in 26 football mills along with associated control systems. “Gearless mill drives are the ‘workhorses’ for grinding operations which are at the heart of any mine.

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Gearless Drive Systems For Belt Conveyor And Grinding …

Gearless Sag Mill Maintenance Schedules. ABBs 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, servicefriendly and fit for purpose design to …

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ABB successfully commissions largest gearless mill drive ...

ABB’s delivery included one gearless mill drive system (GMD) for a 40-feet semi-autogenous mill and two low-speed dual pinion ring-geared mill drive systems (RMDs) for two 26-feet ball mills ...

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GRINDING: ABB commissions six gearless mill drives at ...

Two 28 MW gearless mill drive systems (GMDS) are operating in the mine’s 12-metre SAG mills and four 16.5 MW GMDS are employed in 26 ball mills along with associated control systems. “Gearless mill drives are the ‘workhorses’ for grinding operations which are at the heart of any mine.

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gearless mill drives Archives - International Mining

Gearless mill drives (GMDs) are the grinding solution of choice in challenging environments. ... (12.2 m) SAG mill and two 22 MW drives for a pair of 28 ft (8.5 m) ball mills at Aktogay, and three identical systems at Bozshakol. Each includes phase and excitation transformers, a ring motor with a local mill …

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Cobre Panama starts up gearless mill drive systems ...

In all, two 28-megawatt gearless mill drive systems (GMDs) are in use at the mine's 40ft SAG mills, and four 16.5MW GMDs are employed in 26 football mills. "Gearless mill drives are the 'workhorses' for grinding operations, which are at the heart of any mine," …

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Increasing Availability through Advanced Gearless Drive ...

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

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ABB commissions gearless mill drive system in Peru

Baden, Switzerland, June 9, 2008 – ABB successfully completed commissioning of a 16.5 MW gearless mill drive (GMD) system for a 32 feet SAG (semiautogenous) mill at Minera Yanacocha. The mine, located in Cajamarca, Peru, is the largest gold producer in Latin America.

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