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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. As siemens drive technologies division celebrates 500 years of gearless mill drive operation combined total of installations it is delivering the gearless drive technology for two new mills for the toromocho mine in the peruvian province of yauli.The order comes from minera chinalco per, a subsidiary of aluminum corp of china chinalco.
Posts Related to gear drive sag mill vs gearless drive sag mill. cost of putting up a 2 million tonne cement plant; Obtenir le prix. load sharing of dual motor grinding mill drives. 100+ customer reviews. load sharing of dual motor grinding mill drives .
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 …
19-01-2016· Gearless Mill Drives Machinery Risk Solutions Practice 2009 Matt Dugalic P.Eng., MARSH â MRSP Risk Consultant, VP Kurt Tischler Dipl.-Ing., Siemens…
Go gearless to meet your business objetives by exceeding standard availability targets in your grinding operations. ABB's GMD is the most powerful mill drive system in the market to power semiautogenous (SAG), ball and autogenous (AG) mills, This …
Gearless mill drives (GMDs) are the grinding solution of choice in challenging environments. By eliminating bolt-on mechanical components such as ring-gears, pinions, couplings and gearboxes, GMDs offer ore producers unrivalled availability, efficiency and durability, while reducing operating expenditure, according to GMD provider ABB.
Gearless Drives - static.dc.siemens. 2019-11-18 Another first came in 1991 when Siemens sup- plied gearless drives for two 36-foot ring motors, de- veloping a 12,000 kW gearless drive for the Kennecott, Utah, SAG mill and a 11,200 kW gearless drive for the El Teniente, Chile, SAG mill.
Siemens has provided about 80 SIMINE Gearless mill drives to the mining industry since Paper 25 - Copper Mountain Overview on the 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
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25-05-2021· 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:
Gearless Mill Drive Abb Projects. Sep 30 2020018332ABB and mining equipment company TAKRAF have developed a high powered gearless conveyor drive system that will be installed at the Chuquicamata copper mine in Chile The underground project.
Gearless Mill Drive. 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,, These drive systems use slip ring motors and are started similarly using starting resistors, thereby limiting the inrush current Gearless Mill Drive Sales Rev Up.
Gearless Mill Drive, GMD, 42ft Mill size, Siemens, condition monitoring, finite element analysis, ring motor. Introduction As in all other industries, mining projects are forced to deliver an expected profitability over a long period of time. In contradiction to trends in other industries, however,
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
Gearless Mill Drive Abb Projects. The company selected ABBs 26 MW gearless mill drive system GMD for the mines 40 ft SAG mill as well as other drives electrical infrastructure equipment and a longterm service agreement LTSA This is expected to reduce operating costs improve process throughput and reliability while saving energy and keep equipment in top form
Meanwhile, ABB—which claims to have invented and delivered the first gearless mill drive system in 1969—reported: • That it had, in early 2007, completed a $41-million order for installation and commissioning of four gearless ball mill drive systems at the Cerro Verde mine expansion project in …
SIMINE Gearless mill drives A standard of reliability and efficiency for grinding From Norway to Zambia, from Mongolia to Chile – for over 30 years, mining operators all over the world have been counting on SIMINE Gearless mill drives. Their most important features include a small footprint and less weight than conventional drives.
08-07-2014· 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.
Gearless Mill Drive Optical Systems. Gearless mill drives grinding abb our gmd eliminates all mechanical components of a conventional mill drive system such as ringgear 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. Read More >
19-01-2016· The mills at Sentinel in Zambia are amongst the world's biggest, with 2 off 40 ft SAG mills complete with 28 MW drives, and 2 off 28 foot-ball mills with 22 ...
In the past the conventional method of driving large ball mills included some form of speed reducing gear between the higher speed driving motor and the lower speed ball mill. Process developments in the mining and cement industries have increasingly tended toward the use of ever larger ball mills for grinding their products. As the horsepower drive ratings required have increased to several ...
ABB Gearless Mill Drive Users Meet in Pe ABB reported that it held the most recent of its Gearless Mill Drive (GMD) User Meetings in Lima, Peru, during October 23–24 The conference, a cooperative event between ABB Switzerland and ABB Peru, was the fourth meeting of its type, following a global event held in Switzerland in 2007 and after .
Our reliable diagnostic system helps implement a cost-effective predictive maintenance strategy based on early detection of electrical and mechanical failures of gearless mill drives. Potential damage risks regarding stator winding insulation, rotor-stator air gap and rotor winding overheating are continuously monitored and acquired during operation.
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
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 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