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Gearless Mill Drive System

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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  • Increasing Availability through Advanced Gearless Drive
    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 systems for copper mine in Zambia
    Gearless Mill Drive systems for copper mine in Zambia

    FQM has opted for Siemens Gearless Mill Drives to be used in the two SAG mills having a diameter of 40 feet and an output of 28 MW and the two ball mills with a diameter of 28 feet and an output of 22 MW. With these mill drive systems there is no wear in the drive train since all forces are transferred touch-free via a magnetic field

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  • Gearless mill drive system in iron ore ­processing
    Gearless mill drive system in iron ore ­processing

    Jul 08, 2014 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 Minera o e Met licos, an EBX Group company, is located in the iron quadrangle of

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  • ABB gearless mill drive system to power SAG mill
    ABB gearless mill drive system to power SAG mill

    Sep 01, 2010 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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  • GMDs: the driving force behind sustainable mill operations
    GMDs: the driving force behind sustainable mill operations

    May 14, 2021 The drive system on ABB GMDs - including the gearless motor - does not require any lubrication, thus reducing maintenance costs. The GMD is designed to run the mill with variable speed, in both directions of rotation, meaning the grinding process can be

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  • GMD technology for Minera Escondida - Mineral Processing
    GMD technology for Minera Escondida - Mineral Processing

    Jul 08, 2014 GMD technology for Minera Escondida. 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

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  • When it Comes to Mining, Bigger is Best | PTE
    When it Comes to Mining, Bigger is Best | PTE

    Gearless mill drive. The limitation of an RMD system was overcome by ABB when it introduced the first gearless mill drive (GMD) in 1969 for the cement industry. ABB introduced the first GMD into the minerals industry in 1985 and since then it has become the de facto standard equipment for mines with larger throughput requirements

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  • Automation of ball mill
    Automation of ball mill

    May 10, 2017 ABB’s Gearless mill drive system is the most powerful mill drive system in the market to power semiautogenous (SAG), ball and autogenous (AG) mills. Get Price. automation of a grinding mill mill for sale 10 may 2017

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  • CiteSeerX — Gearless Mill Drive Protection Improvements
    CiteSeerX — Gearless Mill Drive Protection Improvements

    CiteSeerX - Document Details (Isaac Councill, Lee Giles, Pradeep Teregowda): Abstract—A cycloconverter-fed gearless mill drive is a drive system that has hardware and software protection functions to protect the equipment in case of abnormal operating conditions, malfunctions or failures. For demanding applications in the mining industry, protections systems need to be reviewed considering

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  • Gearless Mill Drives | Beneficiation | Siemens Bulgaria
    Gearless Mill Drives | Beneficiation | Siemens Bulgaria

    Aug 17, 2021 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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  • [PDF] TECHNICAL AND COMMERCIAL BENEFITS OF GEARLESS MILL
    [PDF] 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

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  • Lumawan Copper Mine Zambia - Truck Trolley System and
    Lumawan Copper Mine Zambia - Truck Trolley System and

    Siemens Mining: http://www.siemens.com/mining The Truck Trolley System and the gearless mill drives for primary and secondary milling were installed and engi

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  • Gearless mill drives - ABB
    Gearless mill drives - ABB

    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

    Get Price
  • Gearless Mill Drives | Beneficiation | Siemens Global
    Gearless Mill Drives | Beneficiation | Siemens Global

    Aug 31, 2021 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%

    Get Price
  • SIMINE Gearless mill drives
    SIMINE Gearless mill drives

    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. Vibration-free, low-weight, short-circuit

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  • Gearless Mill Drives - ABB
    Gearless Mill Drives - ABB

    One complete Gearless Mill Drive System including: Wrap-around Motor Cycloconverter & Excitation Transformers, E-House Container incl.: Cycloconverters, MCC’s, PLC, VMS Excitation Converter, Fire Fighting, UPS One complete Ball Mill Drive System incl.: Wound Induction Motor 6,72 MW, 996 rpm, 6 pole, 50 Hz. Liquid Starter Efficient Compatible

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  • siemens.com/mining SIMINE Gearless Mill Drives
    siemens.com/mining SIMINE Gearless Mill Drives

    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 be downtime is now productive time. Vibration-free, low-weight, short-circuit- proof design with high stiffness

    Get Price
  • ABB Motor - Gearless Mill Drive GMD System - YouTube
    ABB Motor - Gearless Mill Drive GMD System - YouTube

    Nov 08, 2016 ABB Motor Gearless Mill Drive GMD System

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  • Drive Technology | Drive and Automation Technology
    Drive Technology | Drive and Automation Technology

    This solution, integrated into the gearless Simine Mill GD mill drive, made it possible to selectively release charge that had clumped onto the mill's interior wall, thus keeping the mill from being damaged if the charge were to drop uncontrolled and shortening maintenance times considerably

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