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### Sag Mill Dual Pinion Geared Drive

Once the expanded mill operations begin in 2015, production is expected to average 582,260 oz/y of gold and Moz of silver for the next 10 years. ABB will deliver five dual pinion 2 x 9 MW lowspeed mill drive systems for two 36 ft SAG and three 26 ft ball mills, and one dual pinion (2 x MW) lowspeed drive system for a regrind mill.

Get Price### Selecting Inching Drives for Mill and Kiln Applications

Selecting Inching Drives for Mill and Kiln Applications Glen Cahala Frank C Uherek, Principal Engineer Gear Engineering Software Development Abstract The inching drive, also known as a barring or auxiliary drive, is an important component of any mill or kiln installation. .

Get Price### Innovative Gear Drive Solution for Grinding Mills | E MJ

Both the SAG mill and ball mill are each driven by two gear units. Because, on a conventional drive variant, only one engagement per pinion with the girth gear is possible per side, an economic power limit of about 8 MW per drive is in effect. With the DMG2 gear units, Siemens said this limit expands to as much as 12 MW per drive.

Get Price### Mill (grinding) Wikipedia

SAG is an acronym for semiautogenous grinding. SAG mills are autogenous mills that also use grinding balls like a ball mill. A SAG mill is usually a primary or first stage grinder. SAG mills use a ball charge of 8 to 21%. The largest SAG mill is 42'' () in diameter, powered by a 28 MW (38,000 HP) motor.

### Pinion Drive Sag Mill

pinion drive ball mills nieuwkrimpenerwaardskinderkoor. sag mill pinion drive – Grinding Mill China. pinion drive sag mill. ball mills. The installation and commissioning of the mills and drives at Copper SAG mill, ball mill, ring gear, dual pinion, drive systems Chat Online . pinion .

Get Price### INCREASING SAG MILL CAPACITY AT THE COPPER .

20'' EGL SAG mill, a Raptor 900 pebble crusher and two 24'' x 39''6" ball mills. Each mill is equipped with a 2 x 8500HP dual pinion drive system. The plant was designed to process 1585 h mtpof SAG feed. From startup, the mill struggled to meet the required production rates. Over time, a major initiative that involved

Get Price### Powerful gears in rolling mills | Machine Design

Powerful gears in rolling mills. ... Because of an impact when a bar enters the mill, the pinion "bounces" within the gear tooth space, causing high dynamic tooth loads. To reduce bounce and ...

Get Price### Starkey Associates Inc. Leaders in Comminution Design

SAGDesign testing provides SAG pinion energy grindability in kWh/t to within +/ 5% from 152 to mm, and Bond Ball Mill Work Index on SAG ground ore, from the SAG test on the same sample. Starkey Associates uses the patented SAGDesign technology to calculate accurate mill sizes from measurements on a client''s own ore samples.

Get Price### installation twin pinion sag mill

Design of the 40 foot SAG Mill Installed at the Cadia Gold ... zenith. crushers treat the SAG mill discharge trommel screen oversize material. The crushed .... was determined by deducting the installed ball mill pinion power of Read More

Get Price### Mill Lubrication System SlideShare

Jan 13, 2014· Parts of SAG Mill to be lubricated: Trunion Bearing (feed end) Motor Bearings Gearbox Pinion Bearings : SAG mill Diagram Trunion Bearing (dis. end) 7. Lubricant Data: Masbate Gold Project''s SAG mill uses Compounded Gear Oil as their main lubricant. But a different class of Gear oil is use in every operating system of the SAG mill.

Get Price### Selecting Inching Drives for Mill and Kiln Applications

Selecting Inching Drives for Mill and Kiln Applications Glen Cahala Frank C Uherek, Principal Engineer Gear Engineering Software Development Abstract The inching drive, also known as a barring or auxiliary drive, is an important component of any mill or kiln installation. .

Get Price### Equipment Specification Sheet: SAG Mill

Rod Mill Work Index metric Ball Mill Work Index metric Feed to SAG Mill 80% passing 150 mm Product from SAG Mill 80% passing 1000 µm SAG Mill Pinion Power 1155 kW SAG Mill Motor Size 1268 kW (1700 HP) SAG Mill Size (Diameter) m (19 ft) (Length) m ( ft) SAG Mill Pinion Power 1444 kW SAG Mill Motor Size 1604 kW (2150 HP)

Get Price### Milling Energy intensive and high maintenance

a technical paper on the occasion of the SAG 2006 in Vancouver, B. C. Canada: "Lessons learnt from recent failures of gear drives on mills in South Africa" This study came up with the conclusion that failures occur in five main areas of a mill drive train: • Gear reducers • WRIM rotors • Pinion bearing housings • Pinion shafts

Get Price### Sag Mill Dual Pinion Geared Drive

Sag Mill Dual Pinion Geared Drive. ... Setting up an iron ore crusher mill in jharkhand setting up an iron ore a rock crushing plant setting up an iron ore required documents for setting up of hartl s hcs mangampeta barites mill set up crusher documents required for stone crusher in cost ne.

Get Price### SINGLE STAGE SAG/AG MILLING DESIGN

SINGLE STAGE SAG/AG MILLING DESIGN ABSTRACT Single stage semiautogenous / autogenous (S/AG) milling has become a common design for a variety of ore ... This puts the application in the realm of a single mill, single pinion operation. xPower demand up to 16 MW. ... The SAG mill model in the JKSimMet software has not been shown to accurately ...

Get Price### Used Mining Equipment | SAG Mills

We have 44 years experience designing, manufacturing, installing and commissioning SAG and Ball Mill grinding equipment. We have nearly 30 years experience procuring and reapplying used grinding equipment to new mining projects, often with significant lead time and capital cost savings over the purchase of new equipment.

Get Price### Dual Pinion Ball Mill

dual pinion sag mill vs single pinion sag mill. largest single pinion ball mill drive installation twin pinion sag mill the sag mill was the largest in the ball mill ring gear dual pinion . Get Price; 1 ANI BRADKEN x Wet Overflow Ball Mill .

Get Price### Equipment Specification Sheet: SAG Mill

Rod Mill Work Index metric Ball Mill Work Index metric Feed to SAG Mill 80% passing 150 mm Product from SAG Mill 80% passing 1000 µm SAG Mill Pinion Power 1155 kW SAG Mill Motor Size 1268 kW (1700 HP) SAG Mill Size (Diameter) m (19 ft) (Length) m ( ft) SAG Mill Pinion Power 1444 kW SAG Mill Motor Size 1604 kW (2150 HP)

Get Price### installation twin pinion sag mill

Installation Of Grinding Mill Girth Gear And Pinion Machinery Girth Gear Mill Girth Gears. Manufacturer of Machinery Girth Gear Mill Girth Gears offered by Stotz Gears Pvt. Ltd., Ghaziabad, Uttar Pradesh. ...

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Ring gear drives huge grinding mill | Mechanical Drives content from, Mar 1, 2000, Following the SAG mill will be two 9,000hp ball mills, each one 20ft in, to the ring gear through a pinion, and the ring gear turns the mill

Get Price### TECHNICAL AND COMMERCIAL BENEFITS OF GEARLESS .

TECHNICAL AND COMMERCIAL BENEFITS OF GEARLESS MILL DRIVES FOR GRINDING APPLICATIONS M. Ahrens, ABB, Switzerland ... Singlepinion and dualpinion fixedspeed gear drives offer a relatively simple design. However, process flexibility and optimization ... Picture of a typical GMD system for a SAG mill Figure 2 presents the power circuit of a ...

### nion drive sag mill

SAG Mill Grinding Circuit Design 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 .

Get Price### Sag Mill Syncronis Motor high axial vibration non drive ...

The Pinion drives the Mill through a large girth gear. The pinion has 21 teeth and the girth gear has 376 teeth. ... When the Sag Mill was in operation the clutch operation just did not look ok and pad wear was uneven. The clutch was changed with a used clutch and the results were significant. The axial vibration on the Sag NDE bearing axial ...

Get Price### Sag Mill Dual Pinion Geared Drive

Sag Mill Dual Pinion Geared Drive. ... Setting up an iron ore crusher mill in jharkhand setting up an iron ore a rock crushing plant setting up an iron ore required documents for setting up of hartl s hcs mangampeta barites mill set up crusher documents required for stone crusher in cost ne.

Get Price### ABB successfully commissions world''s largest ringgeared ...

ABB''s scope of supply included four dual pinion lowspeed mill drive systems for two semiautogenous (SAG) and two ball mills, each consisting of two synchronous motors, converter transformers and ACS6000 frequency converters including active rectifier units that allow the mill drives to achieve a power factor of leading.

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