sag mill drives girth gears at hp

Sag Mill Synchronous Motors - caesarmachinery

Sag Mill Drives Girth Gears At 18 000 Hp Motors How Much ... sag mill drives: girth gears at 18,000 hp motors in How Much Crusher[howmuchcrusher], news, photos and information about orlando sentinel the smarter travel ...

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Development of High-Hardness-Cast Gears for High

2017-2-2  Girth gears are now being used to drive ball and SAG mills having total installed power in excess of 17,000 kW (23,000 hp). The development of high-hardness materials suitable for these applications has resulted in the design and manufacturing of cast girth gears up to 350 HBW in steel and 340 HBW in ductile iron.

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operation of sag mill - BINQ Mining

2013-1-4  SAG MILL DRIVES: GIRTH GEARS AT 18,000 HP – OPERATION AND PERFORMANCE This paper was originally presented at the Vancouver SAG mill » More detailed SAG Milling in Minerals Processing – Mining Equipment

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GIRTH GEAR - artec-machine

2017-2-23  Elastic mill sag by weight of mill balls and materia! to grind A: After temporary alignment of the teeth of pinion and girth gear with the mill empty, Fig. 8a, re-alignment should be undertaken with the mill filled with mill balls, i. e. with reference to the elastic sag in cold con- dition, Fig. 8b.

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SAG Mill Variable Speed Drive - 911 Metallurgist

2018-7-18  The economics remain to be proved, but we feel that someday an economical 18,650 kW (25,000 hp) single mill grinding section will be a reality.

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largest gear driven sag mill - aire-de-jeux-king-leo.fr

sag mill drives girth gears at 18000 hp. SAG mills use a ball charge of 8 to 21 . The largest SAG mill is 42 (12.8m) in diameter powered by a 28 MW (38 000 HP) motor. Service Online; grinding mill girth gearhardpressed Innovative Gear Drive Solution for Grinding Mills E MJ. Both the SAG mill and ball mill are each driven by two gear units.

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Paper # 25 - Copper Mountain Overview on the Grinding ...

2021-2-17  Table 1 includes the technical data for the Copper Mountain SAG mill. Table 1 - general SAG mill data Specification Data Mill size 10.363 M [34 feet] diameter by 6.096 M [20 feet] long Mill type Wet grinding, grate discharge Mill drive motor size 17,000 HP Mill drive motor type Synchronous 200 RPM Inside diameter 10,363 mm Length 6,096 mm

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Gear Drives - Alloy Technology Inc

Replacement Solutions. Gearboxes – Customized to fit your application. Mill Pinions – Carburized and through hardened. Ball SAG mill girth gears up to 45.5 ft. diameter.

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Girth Gears - More than Just Metal and Teeth

2017-5-22  mills and ball mills for use in the mining and cement industries. By current stan-dards, girth gears can be as large as 14 meters (46 feet) in diameter, 1.1 meters (44 inches) face width, and 50 module (.5 DP) tooth size, and weighing upwards of 120 tons. Flange mounted gears rely, in large part, on the mill structure to pro-

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Cadia Girth Gear Failures - eand.au

2014-9-22  This is an update of work presented at the SAG 2001 conference on the Cadia gears [1]. Both gears and pinions on twin ball mills failed almost simultaneously. Our 2001 paper showed that the location of the failures is explained by the shape of

Read More

Development of High-Hardness-Cast Gears for High

2017-2-2  Girth gears are now being used to drive ball and SAG mills having total installed power in excess of 17,000 kW (23,000 hp). The development of high-hardness materials suitable for these applications has resulted in the design and manufacturing of cast girth gears up to 350 HBW in steel and 340 HBW in ductile iron.

Read More

largest gear driven sag mill - aire-de-jeux-king-leo.fr

sag mill drives girth gears at 18000 hp. SAG mills use a ball charge of 8 to 21 . The largest SAG mill is 42 (12.8m) in diameter powered by a 28 MW (38 000 HP) motor. Service Online; grinding mill girth gearhardpressed Innovative Gear Drive Solution for Grinding Mills E MJ. Both the SAG mill and ball mill are each driven by two gear units.

Read More

SAG Mill Variable Speed Drive - 911 Metallurgist

2018-7-18  The economics remain to be proved, but we feel that someday an economical 18,650 kW (25,000 hp) single mill grinding section will be a reality. Variable Speed Drives. Variable speed drives are not new. Many have been used in the

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David Brown Girth Gear

2014-7-17  breakdown of the girth gear into four separate parts. “The SAG mill is 34 ft. in diameter, dual pinion with 12,000 hp,” says Neal Biege Sr., head of global marketing for FL Smidth. “The ball mill is 20 ft. in diameter with 8,580 hp. The gears should be operational by mid 2009.” With investments in machining and gear-cutting technology ...

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Paper # 25 - Copper Mountain Overview on the Grinding ...

2021-2-17  Table 1 includes the technical data for the Copper Mountain SAG mill. Table 1 - general SAG mill data Specification Data Mill size 10.363 M [34 feet] diameter by 6.096 M [20 feet] long Mill type Wet grinding, grate discharge Mill drive motor size 17,000 HP Mill drive motor type Synchronous 200 RPM Inside diameter 10,363 mm Length 6,096 mm

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Drive Solutions for the Global Mining Industry

2017-4-9  as pumps, valves, gears, and turbines that do require extensive periodic maintenance with associated ... (LV and MV) drives covers all your needs from 450 hp up to 12,000 hp (335 kW to 8,950 kW) and beyond, with a wide output voltage range up to 11 kV, and a line ... drive application is a dual-pinion SAG mill driven by two 5,000 kW wound rotor ...

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Preprint 13-050

2018-2-20  The reasons why these gearless drives on mills came about in the late 1970’s is because of SAG mills requiring variable speed and the limitations of material of construction and the heavy manufacturing capabilities at the time. Girth gears have been going through enormous improvements over time following the use of FEA, casting software like

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Cadia Girth Gear Failures - eand.au

2014-9-22  This is an update of work presented at the SAG 2001 conference on the Cadia gears [1]. Both gears and pinions on twin ball mills failed almost simultaneously. Our 2001 paper showed that the location of the failures is explained by the shape of the girth gear blanks. Fresko et. al. [2] shows that T-gears are in fact better than Y-gears in terms ...

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INTELLIGENT GEARING SYSTEM – SOLUTION TO

2009-8-26  turn the girth gear around on the mill and run it on the back flank. In order to maintain alignment of the girth gear and mill pinion, standard practice in the industry is to measure the temperature difference across the face width of the girth gear. The David Brown standard is a maximum temperature difference (DeltaT) of 6 degrees

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Global PAM Team - Global Physical Asset Management, Inc.

Global PAM Team. William is a Mechanical Engineer; managing and conducting the engineering, consulting, training, field service offerings and RCM-SAE JA1011 Implementation for Global-PAM. William specializes in asset management (ISO 55000) of large-scale power transmission equipment for heavy industry such as mineral processing, cement, and ...

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David Brown Girth Gear

2014-7-17  breakdown of the girth gear into four separate parts. “The SAG mill is 34 ft. in diameter, dual pinion with 12,000 hp,” says Neal Biege Sr., head of global marketing for FL Smidth. “The ball mill is 20 ft. in diameter with 8,580 hp. The gears should be operational by mid 2009.” With investments in machining and gear-cutting technology ...

Read More

SAG Mill Variable Speed Drive - 911 Metallurgist

2018-7-18  The economics remain to be proved, but we feel that someday an economical 18,650 kW (25,000 hp) single mill grinding section will be a reality. Variable Speed Drives. Variable speed drives are not new. Many have been

Read More

Horizontal Ball Mill Drives - dbsantasalo

Mill drive gearboxes are designed to complement the girth gear to deliver cost effectiveness across the entire system. Gear cases machined from rigid housings to ensure optimum shaft alignment, reduced noise and dynamic deflections. Simple lubrication and cooling allows the system to operate at various speeds including barring, with use of ...

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Innovative Gear Drive Solution for Grinding Mills E MJ

2020-4-8  Innovative Gear Drive Solution for Grinding Mills. Cemtec and Siemens jointly developed a standard-equipment, economical solution to handle the power needed to drive a 10.4 x 6.1-m, 15-MW SAG mill and an 8.2 x 14-m 18-MW ball

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Gearless motor drive scheme. Download Scientific Diagram

A clear trend has been observed toward the use of gearless drives. The last twin motor drive with girth gear was installed in 1999. ... (SAG) mill drives ... teeth of gears used in high power ...

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Ball Mill Girth Gear Pinion and Trunnion Assembly at Rs ...

We Piyali Engineering Corporation, situated in New Delhi.We are manufacturer and exporter of industrial gears in India, Girth Gears, Kiln Girth Gear, Sugar Mill Gears, Trunnions, Mill Head, Pinion Gears, Shafts, Support Rollers, Worm Wheel, Worm gears, Ground Gears, Helical Gears, Sprockets, Tyres For Kilns, Tyres For Coolers, etc. for Cement plant, sugar mill, sponge iron

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Cadia Girth Gear Failures - eand.au

2014-9-22  This is an update of work presented at the SAG 2001 conference on the Cadia gears [1]. Both gears and pinions on twin ball mills failed almost simultaneously. Our 2001 paper showed that the location of the failures is explained by the shape of the girth gear blanks. Fresko et. al. [2] shows that T-gears are in fact better than Y-gears in terms ...

Read More

INTELLIGENT GEARING SYSTEM – SOLUTION TO

2009-8-26  turn the girth gear around on the mill and run it on the back flank. In order to maintain alignment of the girth gear and mill pinion, standard practice in the industry is to measure the temperature difference across the face width of the girth gear. The David Brown standard is a maximum temperature difference (DeltaT) of 6 degrees

Read More

Benefits of continuous data acquisition from critical ...

2021-7-29  any further. The mill has been in operation one year since the lubrication problem was detected at an early stage Case 2) asset analytics system installed to overlook two (2) GMDs of 38 feet (~11.6 m) diameter SAG mill drives; in a remote location, recording simultaneously data of relevant electrical and mechanical parameters with focus on the

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Grinding Mills EAnD

Mill Castings – QC – Consultants. It is a terrible waste in terms of energy, cost, human effort, damage to the environment, etc., to scrap a mill casting. However sometimes, this is necessary and it does not take an expert in quality control to see why. The assessment of flaws in castings using fracture mechanics seems to be too ...

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