largest gear driven sag mill

  • Ring gear drives huge grinding mill Machine Design

    The Escondida SAG mill will be, by far, the largest gear-driven mill. The next largest is Asarco’s 34-ft diam., 19-ft long, 14,000-hp mill in Arizona. In a ring-motor drive, Figure 4, a ringshaped.Fruitful to deliver world's largest gear-driven mills,Nov 17, 2011· Fruitful has been awarded a contract worth approximately USD 70m (approximately DKK 350m) for equipment supplies to a copper mine in Latin America. The contract includes delivery of

  • Preprint 13-050

    SAG mill conference, provided details of the then largest gear drive in operation on a SAG mill (34ft x 18ft) at Escondida 13.4MW, which began operation in 1995. The reason for not having larger gear drivesCONGA: THE WORLD’S FIRST 42 FOOT DIAMETER 28 MW ,In 2010 Newmont made the decision to purchase a 42 foot (ft) Semi-Autogenous Grinding (SAG) mill from Fruitful and a 28 Mega-Watt (MW) Gearless Mill Drive

  • Autogenous and Semi-Autogenous Mills Fruitful

    Single stage SAG Mills are very beneficial in reducing CAPEX for plants with a staged throughput approach. When future tonnage is to be increased, the SAG Mill can feed downstream ball milling to boost capacity. Fuller-Traylor SAG/AG Mills range in size from 4.3m through 12.2m in diameter with powers as high as 28,000 kW.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

  • SAG MILLING NEWS FFE to Supply World’s Largest Canadian

    FFE gives the mill details thus: 8.23 metres inside shell diameter; 12.19 metres effective grinding length; 12.8 metres between flanges; and dual 7,000 motors. That makes it the largest low-aspect, dual-pinion gear-driven mill ever to be designed and built. The new mill Autogenous and Semi-Autogenous Mills Fruitful,Single stage SAG Mills are very beneficial in reducing CAPEX for plants with a staged throughput approach. When future tonnage is to be increased, the SAG Mill can feed downstream ball milling to boost capacity. Fuller-Traylor SAG/AG Mills range in size from 4.3m through 12.2m in diameter with powers as high as 28,000 kW.

  • Farnell-Thompson

    For their largest, most recent North American Phoenix project, Newmont Gold elected to procure their one 36' gearless driven SAG mill and two 21' gear driven ball mills through Farnell-Thompson. Estimated savings on capital equipment were about 20%.Fruitful to deliver world's largest gear-driven mills,Choose a service area or learn more about what we can offer. Learn more about our services. Operational services. Audits; On-site services; Service agreements

  • Paper # 25 Copper Mountain Overview on the Grinding

    which just has started commercial operation earlier this year. The grinding process with one 34' x 20' SAG mill and two 24' x 39.5' ball mills will be briefly discussed. All three mills are gear driven by a ring gear, dual pinion and two low speed synchronous motors. Copper Mountain has installed on all three millsOPERATING STRATEGIES Innovative Gear Drive Solution ,The two installed mills include a semi-autogenous (SAG) mill measuring 10.4 x 6.1 m with a drive output of 15 MW; and a ball mill rated at 18 MW. The SAG mill reduces ore fragments with a maximum size of 250 mm (P 80 = 152 mm) down to 2 mm, and the ball mill reduces the SAG mill product to about 74 µm. Grinding is followed by flotation.

  • SAG Milling in Australia -Revised Submission

    the range of gear driven mills to a theoretical limit of 32 MW. The Ernest Henry SAG mill (11 MW) is currently the largest twin pinion single drive mill installed in Australia. Problems have been experienced with the twin pinion drive at Fimiston and with the ring motor at Cadia.Gearless Mill Drives Beneficiation Siemens Global,Benefits of continuous data acquisition from critical large drive systems in a mine operation (SME 2016) Frozen charge detection and automatic loosening with gearless mill drives (SAG Conf. 2015) Mill drives: the desire for increased power and the associated limits and conditions (SAG Conf. 2015)

  • Mills & Kilns Home Hofmann Engineering

    a) Measure involute wear on gear. b) Clean and crack detect gear using magnetic particle method. c) Install Hofmann case hardened Pinion. Case hardness must exceed 55HRC. d) Laser align drive train. e) Accurately in situ grind girth gear using the case hardened pinion as a master. f) Apply Hofmann Grafloscon A-C1 Ultra primer to pinion and gear.Ring-geared mill drives Grinding ABB,Mill application features. Frozen charge protection Detects frozen charge in the mill, minimizing equipment wear and liner replacements.; Coupling supervision Detects if a failure or slippage occurs in the couplings and stops the system in case, preventing major damages.; Stand-still detection Prevents the motors from re-starting if the mill is still rocking or moving after a stop

  • World’s largest manufactured mills by CITIC HIC and

    Sino Iron (magnetite) Project is a 140 million metric tons per annum processing plant producing 80 million tons of concentrate per annum. All this iron ore is processed through six of the world’s largest AG mills (12.2 m diameter × 11 m long with 28 MW drives) and six 7.9 m diameter × 13.6 m long ball mills with dual 7.8 MW drives.SAG Mill Feed The Beast Wiki,The SAG Mill is a block added by the EnderIO mod. A machine similar to a Pulverizer or a Macerator.It is used to process resources to produce dust. It accepts energy in the form of Redstone Flux or Minecraft Joule, with an internal buffer of 100,000 RF and consumption of 20 RF per tick.The energy storage capacity and processing speed can be increased by adding one of 3 tier of Capacitor into

  • INNOVATION NEWS Mills and GMDs ABB

    reliable drive system for SAG mills. Early SAG mills had a diameter of about 32’, later increasing to 34, 36, 38 and 40’. At the same time the mill volume also increased. Typically a SAG mill has a much larger diameter compared to its length. Yet the SAG mill of Newmont’s Yanacocha mine in Peru is a singleSiemens modernises SAG mill gearless drive in Cadia Valley,This two-stage grinding circuit consists of a 40 ft SAG mill with a 20 MW Siemens gearless drive and two parallel 10 MW gear driven ball mills. Siemens has now fitted the SAG mill with a Sinamics SL 150 cycloconverter for closed-loop control as well as with a Sinamics DCM control module for the excitation circuit the first time that both

  • SAG MILLING NEWS FFE to Supply World’s Largest Canadian

    FFE gives the mill details thus: 8.23 metres inside shell diameter; 12.19 metres effective grinding length; 12.8 metres between flanges; and dual 7,000 motors. That makes it the largest low-aspect, dual-pinion gear-driven mill ever to be designed and built. The new mill INNOVATION NEWS Mills and GMDs ABB,reliable drive system for SAG mills. Early SAG mills had a diameter of about 32’, later increasing to 34, 36, 38 and 40’. At the same time the mill volume also increased. Typically a SAG mill has a much larger diameter compared to its length. Yet the SAG mill of Newmont’s Yanacocha mine in Peru is a single

  • Minerals Engineering International Online Comminution

    What makes the mill a world first is that it will be the largest low aspect, dual pinion gear driven mill ever to be designed and built. The mill specifications are: Diameter (inside shell) :27'-0" (8.23 meters) Effective Grinding Length :40'-0" (12.19 meters) Mill Length (between flanges) :42'-0" (12.8 meters)Gearless Drives Siemens,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 theme that links these projects careful

  • OPERATING STRATEGIES Innovative Gear Drive Solution

    The two installed mills include a semi-autogenous (SAG) mill measuring 10.4 x 6.1 m with a drive output of 15 MW; and a ball mill rated at 18 MW. The SAG mill reduces ore fragments with a maximum size of 250 mm (P 80 = 152 mm) down to 2 mm, and the ball mill reduces the SAG mill product to about 74 µm. Grinding is followed by flotation.World’s largest manufactured mills by CITIC HIC and,Sino Iron (magnetite) Project is a 140 million metric tons per annum processing plant producing 80 million tons of concentrate per annum. All this iron ore is processed through six of the world’s largest AG mills (12.2 m diameter × 11 m long with 28 MW drives) and six 7.9 m diameter × 13.6 m long ball mills with dual 7.8 MW drives.

  • SAG Mill Feed The Beast Wiki

    The SAG Mill is a block added by the EnderIO mod. A machine similar to a Pulverizer or a Macerator.It is used to process resources to produce dust. It accepts energy in the form of Redstone Flux or Minecraft Joule, with an internal buffer of 100,000 RF and consumption of 20 RF per tick.The energy storage capacity and processing speed can be increased by adding one of 3 tier of Capacitor intoMills & Kilns Home Hofmann Engineering,a) Measure involute wear on gear. b) Clean and crack detect gear using magnetic particle method. c) Install Hofmann case hardened Pinion. Case hardness must exceed 55HRC. d) Laser align drive train. e) Accurately in situ grind girth gear using the case hardened pinion as a master. f) Apply Hofmann Grafloscon A-C1 Ultra primer to pinion and gear.

  • Grinding Mills CITIC-Heavy Industries Co. Ltd

    Jun 15, 2014· These mills are scheduled of start up on 2012. Our market share in China exceeds 80% with the largest mills supplied to date being a Ø7.9m x 13.6m 2x8.5MW Ball Mill and a Ø11m x 5.4m 2x8.5MW SAG Mill,being the largest in China.Lubrication of large gear drives,Fig. 2: Rotary kiln with girth gear drive Fig. 1: Tube mill with girth gear drive Fig. 3: Possible arrangement of drive elements in single and double-pinion drives. 5 General The gear drives used in tube mills and rotary kilns are usually very sturdy in design and operate at low speeds.

  • Girth Gear Sag Mill Commissioning

    SAG mill conference, provided details of the then largest gear drive in operation on a .. additional time and costs associated with commissioning of a gearless drive vs Read more SAG Milling At The Fimiston Plant (KSKD ) 2 0 0 1 SIMINE Gearless mill drives Siemens,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

  • Siemens modernises SAG mill gearless drive in Cadia Valley

    This two-stage grinding circuit consists of a 40 ft SAG mill with a 20 MW Siemens gearless drive and two parallel 10 MW gear driven ball mills. Siemens has now fitted the SAG mill with a Sinamics SL 150 cycloconverter for closed-loop control as well as with a Sinamics DCM control module for the excitation circuit the first time that bothDifference Between Sag Mill vs Ball Mill mech4study,Oct 12, 2017· SAG mill make use of steel balls included with some large and hard rocks for grinding. These mills utilize the balls in making the large fragments of materials broken into pieces. The ball charge of a SAG mill is about 9% to 20%.This process takes place inside the large rotating drum of SAG mill which is filled with balls partially.