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  • 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.

  • Gearless Mill Drives Beneficiation Siemens Global

    That is why the gearless drive of a grinding mill is one of the most crucial pieces of equipment in the concentrator and why it is subject to particularly high demands. Siemens has provided about 80 SIMINE Gearless mill drives to the mining industry since 1980. In these thirty-plus years, SIMINE Gearless mill drives have accumulated a combined ...

  • Gearless mill drives - ABB Group

    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

  • Gearless Drives - Siemens

    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-vides an astonishing 20,400 kW of power. In 1998, Siemens supplied the first gearless drive for a 40-foot SAG mill at the Cadia Hill Mine in Australia. While the details vary, there is a ...

  • SIMINE Gearless mill drives - Siemens

    Gearless mill drives. Longer service intervals thanks to low-wear drive processes SIMINE Gearless mill drives’ rpms can be tailored to your operations at any time, and are infinitely variable and uncomplicated. Whether manually or fully automatic – rpms can be adjusted to account for the proper-ties of the ore, resulting in significantly less

  • Sentinel: Siemens Gearless Mill Drives - YouTube

    Jan 19, 2016  Siemens Gearless Mill Drives result in reduced total costs and assure a high performance, in accordance with the production requirements of a mining operation. ... Drive Technologies Siemens ...

  • 作者: Siemens
  • INSURABILITY OF LARGE GEARLESS MILL DRIVES

    insurers view the specific risks related to large Gearless Mill Drive (GMD) mills, and why the insurability of these large mills is a significant concern to the mining industry that utilizes them, the manufacturers that design and construct them, and the insurance companies that provide coverage to the users. Introduction to Risk Management

  • ABB successfully commissions six gearless mill drives at ...

    Two 28 MW gearless mill drive systems (GMDs) are operating in the mine's 40 foot SAG mills and four 16.5 MW GMDS are employed in 26 football mills along with associated control systems. The six ABB Gearless Mill Drives have been installed since late last year and are all now in continuous operation; ABB team at Mina de Cobre in Panama

  • 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.

  • Gearless Mill Drive (GMD) animation - YouTube

    Oct 15, 2012  A detailed animation showing the workings of a Gearless Mill Drive (GMD), created from a series of CAD files and in-situ photographs.

  • 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.

  • Gearless Mill Drive (GMD) animation - YouTube

    Oct 15, 2012  A detailed animation showing the workings of a Gearless Mill Drive (GMD), created from a series of CAD files and in-situ photographs.

  • 作者: ArmitageComm
  • Gearless Drives for Ore Conveying and Grinding - Cmms ...

    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

  • Gearless Mill Drives for Cobre Panama – Jan 2018 ...

    Of the six ABB gearless mill drives being installed at Cobre Panamá, four will power ball mills and the other two will drive SAG mills. Importantly, these massive machines are among the largest ever installed in the world and were transported in quartered sections to site for assembly in-situ.

  • GMD Definición: Gearless Mill Drive - Gearless Mill Drive

    Si está visitando nuestra versión en inglés y desea ver las definiciones de Gearless Mill Drive en otros idiomas, haga clic en el menú de idiomas en la parte inferior derecha. Verá significados de Gearless Mill Drive en muchos otros idiomas como árabe, danés, holandés, hindi,

  • Gearless Ball Mill Operation

    The reliability of large diameter, high horsepower ball mill is paramount when large production and minimum downtime is required. The 17 ft. x 56 ft. double compartment ball mill at St. Lawrence Cement Company has the first gearless drive built in North America and has the world’s largest hydrodynamic bearings currently built and running.

  • Sag Mill Gearless Drive

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

  • ball mills gearless - Wembley Primary School

    ABB gearless mill drive installed 2002 at the Minera Escondida in Chile ABB announced that it will supply a new 15 7 MW gearless mill drive GMD system for a 26 ft ball mill including transformers ring motor and a complete electrical room entirely equipped to Minera Escondida Chile The contract was awarded in June 2010 and equipment .

  • Increasing availability through advanced Gearless Drive ...

    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),

  • gearless gearless drive mills - techniker-leipzig.de

    gearless mill drive - Mining Magazine 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

  • Literature Review: Gearless Motor Failures – A Mill ...

    Sep 10, 2014  1 – Ring Motor and Mill Complexities. We have been fortunate to undertake detailed mechanical and structural design reviews and audits of all mill types from the five major mill vendors and of ring motors from both the gearless drive vendors. We have also been hired by mine owners to determine the causes of most of the major modern mill and ...

  • gearless mill drive - Mining Magazine

    Mining Magazine - Latest mining and investment news. ABB continues drive contract for Cerro Verde six years on. In the March quarter of 2012, ABB was contracted to supply gearless mill

  • ABB successfully commissions six gearless mill drives at ...

    Nov 07, 2019  Two 28 MW gearless mill drive systems (GMDs) are operating in the mine’s 40 foot 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.

  • China Gearless Drive Machine for Elevators Load 1350kg ...

    China Gearless Drive Machine for Elevators Load 1350kg Traveling Height 120 Meters for 18 Passengers Elevators, Find details about China Gearless, Traction Machine from Gearless Drive Machine for Elevators Load 1350kg Traveling Height 120 Meters for 18 Passengers Elevators -

  • ball mills gearless - Wembley Primary School

    ABB gearless mill drive installed 2002 at the Minera Escondida in Chile ABB announced that it will supply a new 15 7 MW gearless mill drive GMD system for a 26 ft ball mill including transformers ring motor and a complete electrical room entirely equipped to Minera Escondida Chile The contract was awarded in June 2010 and equipment .

  • Increasing availability through advanced Gearless Drive ...

    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),

  • gearless gearless drive mills - techniker-leipzig.de

    gearless mill drive - Mining Magazine 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

  • Literature Review: Gearless Motor Failures – A Mill ...

    Sep 10, 2014  1 – Ring Motor and Mill Complexities. We have been fortunate to undertake detailed mechanical and structural design reviews and audits of all mill types from the five major mill vendors and of ring motors from both the gearless drive vendors. We have also been hired by mine owners to determine the causes of most of the major modern mill and ...

  • gearless mill drive - Mining Magazine

    Mining Magazine - Latest mining and investment news. ABB continues drive contract for Cerro Verde six years on. In the March quarter of 2012, ABB was contracted to supply gearless mill

  • ABB successfully commissions six gearless mill drives at ...

    Nov 07, 2019  Two 28 MW gearless mill drive systems (GMDs) are operating in the mine’s 40 foot 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.

  • China Gearless Drive Machine for Elevators Load 1350kg ...

    China Gearless Drive Machine for Elevators Load 1350kg Traveling Height 120 Meters for 18 Passengers Elevators, Find details about China Gearless, Traction Machine from Gearless Drive Machine for Elevators Load 1350kg Traveling Height 120 Meters for 18 Passengers Elevators -

  • 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.

  • definizione GMD: Gearless Mill Drive - Gearless Mill Drive

    Se stai visitando la nostra versione inglese e vuoi vedere le definizioni di Gearless Mill Drive in altre lingue, fai clic sul menu della lingua in basso a destra. Vedrete significati di Gearless Mill Drive in molte altre lingue come arabo, danese, olandese, hindi, Giappone, coreano, greco, italiano, vietnamita, ecc.

  • gearless drive mills and crushers

    Gearless mill drives Go gearless. The ABB gearless mill drive (GMD) is the most powerful mill drive system on the market It combines highest efficiency, reliability, flexibility and availability It combines highest efficiency, reliability, flexibility and availability.. Know More

  • Increasing Availability through Advanced Gearless Drive ...

    Siemens’ gearless drive technology of 99.46 to 99.71% - as confirmed by real operational data from the Antapaccay mine in Peru. It was the first plant worldwide to use gearless drives for both applications. KEYWORDS Gearless Mill Drives, Gearless Conveyor Drives, Availability, SAG Mill, Ball Mill, Overland Conveyor, Antapaccay 15

  • Gearless Mill Drives for Cobre Panama - Jan 2018 ...

    Of the six ABB gearless mill drives being installed at Cobre Panamá, four will power ball mills and the other two will drive SAG mills. Importantly, these massive machines are among the largest ever installed in the world and were transported in quartered sections to site for assembly in-situ.

  • gearless mill drives - Mine Equipments

    Gearless mill drives Go gearless The gearless mill drive eliminates all mechanical components of a conven- tional mill drive system, such as ring-gear, pinion, gearbox, coupling, motor shaft and ...

  • SIMINE MILL GD - Siemens

    SIMINE MILL GD – outstanding reliability at your hand The Gearless Concept The Gearless Drive avoids any contact between the rotating mill and the static parts of the motor. This enables a contin-uous workflow without maintenance on the gears or the pinions. What used to

  • 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.

  • gearless drive mills and crushers

    Gearless mill drives Go gearless. The ABB gearless mill drive (GMD) is the most powerful mill drive system on the market It combines highest efficiency, reliability, flexibility and availability It combines highest efficiency, reliability, flexibility and availability.. Know More

  • Increasing Availability through Advanced Gearless Drive ...

    Siemens’ gearless drive technology of 99.46 to 99.71% - as confirmed by real operational data from the Antapaccay mine in Peru. It was the first plant worldwide to use gearless drives for both applications. KEYWORDS Gearless Mill Drives, Gearless Conveyor Drives, Availability, SAG Mill, Ball Mill, Overland Conveyor, Antapaccay 15

  • Gearless Mill Drives for Cobre Panama - Jan 2018 ...

    Of the six ABB gearless mill drives being installed at Cobre Panamá, four will power ball mills and the other two will drive SAG mills. Importantly, these massive machines are among the largest ever installed in the world and were transported in quartered sections to site for assembly in-situ.

  • TECHNICAL AND COMMERCIAL BENEFITS OF GEARLESS

    Gearless mill drives are a well established solution for grinding applications in the minerals and mining industries. The paper describes the functionality and technical features of such drive systems as well as their advantages compared to other drive solutions. Due to the variable speed operation the grinding process can be optimized for

  • Six gearless mill drives commissioned at Panama's newest ...

    Oct 28, 2019  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

  • SIMINE MILL GD - Siemens

    SIMINE MILL GD – outstanding reliability at your hand The Gearless Concept The Gearless Drive avoids any contact between the rotating mill and the static parts of the motor. This enables a contin-uous workflow without maintenance on the gears or the pinions. What used to

  • Updates on geared vs gearless drive solutions for grinding ...

    The current paper looks at evaluating the merits of large geared mills versus gearless driven mills by evaluating the following factors: The capability of currently available systems in terms of power and mill

  • TECHNICAL AND COMMERCIAL BENEFITS OF GEARLESS MILL

    Gearless mill drives are a well established solution for grinding applications in the minerals and mining industries. The paper describes the functionality and technical features of such drive systems as well as their advantages compared to other drive solutions. Due to the variable speed operation the grinding process can be optimized for ores with varying grinding properties.

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

    Oct 29, 2019  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 Drive - najamariedomsel.de

    Advantages of gearless drives on ball mills. . for installation and commissioning of four gearless ball mill drive systems . gearless mill drive optical systems. Get Price. sag mill maintenance Automatic Mill. To be familiarized with the . ABBs Gearless mill drive system is the most powerful mill

  • gearless mill drives - Mine Equipments

    Gearless mill drives Go gearless The gearless mill drive eliminates all mechanical components of a conven- tional mill drive system, such as ring-gear, pinion, gearbox, coupling, motor shaft and ...

  • 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 ...

  • gearless mill drives - Mining Magazine

    Cobre Panama starts up gearless mill drive systems. Manufacturer ABB has commissioned six units at copper op Operational Excellence 29 OCTOBER 2019. MC installs motors at Cobre Panamá. Marthinusen Coutts recently executed the sub-assembly of six gearless mill drives for Cobre Panamá... Comminution 15 JANUARY 2018. Carry on collecting.