Girth gear for AG mill and SAG mill in mining industry

The autogenous grinding (AG) mill and the semi-autogenous grinding (SAG) mill are grinding machines that combine the functions of crushing and grinding, and are mainly used in …

Girth Gear Sag Mill Commissioning - nnguniclub.co.za

commissioning time for a ball mill - paramounthotels. girth gear ball mill commissioningBINQ Mining. II84 The pinion and girth gears of two 9 MW ball mills exhibited severeMW ball mills At the time of commissioning both the ball and SAG mills

sag mill drives girth gears at 18 000 hp motors

sag mill dual pion . sag mill drives girth gears at 18000 hptepuchqorgin. dual pinion sag mill vs single Gears And Pinion For Ball Mill Crusher Mills Cone Crusher The grinding circuit consists of a SAG mill and two ball mills

Girth Gears - Industrial Girth Gears and Girth Gear ...

Mill Girth Gears comprise high integrity girth gears that find application in driving horizontal grinding mills. With these gears developed for achieving superior finish strength and process reliability, these can be designed for different kW applications as well as in diameter and weight choices.

Girth Gears - More than Just Metal and Teeth

such as SAG (semi autogenous grinding) 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-vide the stiffness and ...

David Brown Girth Gear - Gear Technology

David Brown delivered a girth gear weighing more than 65,000 kilograms to FL Minerals for a mining operation in Zangezour, Armenia. The original order was delivered in early 2008, and the company is currently working on a second girth gear order for 2009. The single helical SAG mill girth gear, which is cast in four pieces, has 362 teeth, 0.75 DP, 863.6 mm face width, 12.4 m outside ...

INTELLIGENT GEARING SYSTEM – SOLUTION TO UNDERSTAND …

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.

Autogenous mills, semi-autogenous mills and ball mills for ...

Autogenous mills, semi-autogenous mills and ball mills for wet grinding. A company of Polysius ThyssenKrupp Technologies tk. 2 High-performance systems for wet grinding applications. The comprehensive range of wet grinding systems from Polysius comprises of: xAutogenous and semiautogenous mills, xBall mills, xRod mills and xScrubbers. Polysius offers dry grinding systems …

Ok Tedi plans for long term with SAG mill upgrades by ...

Due to the low speed nature of the drive train, a torque limiting coupling is fitted to protect pinion and girth gear from eventual transient torques. As a result, the air-clutch that previously transferred the drive power to the mill can be removed, eliminating all air-clutch related outages and maintenance activities. For SAG 2, Siemens supplies two 8 pole, high speed induction motors to ...

AG mill and SAG mill girth gear manufacturing

The autogenous grinding mill (AG mill) and semi autogenous grinding mill (SAG mill) are two grinding equipment with crushing and grinding functions, which are mainly used in mineral processing industry. CHAENG (Xinxiang Great Wall Steel Casting) with rich experience in manufacturing grinding mill girth gear according to users' drawings, can ...

Girth gear drives - Components - Applications - Klüber ...

Large girth gears are used where heavy loads need to be carried in rotary tubular kilns, tube mills, and winches at sea. As the dimensions of such gears can be huge, it is often difficult to protect the gear teeth effectively against external media.

Ball Mill Gear - Mineral Processing & Metallurgy

Ball Mill Gear. Two general classifications of gearing are used for ball Mill drives. These are the spur gear and the helical gear. Helical gearing may be either of the single helical or double helical (Herringbone) design. SPUR GEARS. These are generally furnished on the smaller diameter mills using V-belt drives or reducer drives. Spur gears and pinions are cut with teeth of the full depth ...

ring gear for sag mill required - christoartfair.nl

Autogenous mills, semi autogenous mills If required, ring motor drives can be fitted to shell alignment of the girth gear. Two SAG mills with rigid pinion Two SAG mills with rigid pinion Read More

Girth Gears - Ring Gears | Gearbox applications | David ...

Girth / Ring Gears If you need large diameter girth gears in your process machinery, then you need a product you can rely on. With a variety of options for cast, fabricated steel or SG iron and multi-segmented gears, David Brown Santasalo is your one stop shop for girth gears for AG, SAG, ball mill, kiln and dryer applications.

Preprint 13-050 - ceecthefuture.org

Girth gear drives have been, and continue to be, the primary method of driving SAG mills, Ball mills and other rotating elements. Several thousand grinding mills have been manufactured and have

Grinding Mills, Girth Gears, Pinions Mill Shells, Mill ...

Harcliff Mining Services manufacture and refurbish Ball Mills, SAG Mills, AG Mills, Rod Mills and Mill components

Used Hardinge-Koppers 18" sag mill | Machinery & …

Hardinge-Koppers sag mill, 18' x 6'. Complete with 1000 HP, 4000V, 3 phase, 60 Hz 885 RPM induction Siemens-Allis motor, falk gear reducer and Eaton Yale clutch. Girth gear 15.25" wide, 204 tooth and pinion is 30 tooth.

what is a barring gear in ball mills - squarawoodcrafts.co.za

The grinding circuit consists of a SAG mill and two ball mills, all dual pinion gear driven. Copper FL ball mills. Figure 1 Overview grinding circuit. The Copper Mountain SAG mill is 10363 mm [34 feet] in diameter and 6096 mm [20 feet] long. . Because the ABB drive is …

Horizontal Ball Mill Drives | Gearbox applications | David ...

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

GIRTH GEAR - artec-machine.com

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. Final tooth contact adjustments are made on reaching the operating tem- perature of about 120 ...

Girth Gear Sag Mill Commissioning - cz-eu.eu

Girth Gear Sag Mill Commissioning. How To Replace Girth Gear In Ball Mill - Pensacola Samba. Why Use Girth Gear In Outlet Of Ball Mill Girth Gear Sag Mill Commissioning NEWS RELEASE Kumtor Mine to Replace SAG Mill Girth Gear TORONTO,

CR4 - Thread: Ball Mill Girth Gear and Pinion Alignment

2011-08-28· Re: Ball Mill Girth Gear and Pinion Alignment 08/27/2011 2:07 AM pinion alighnment is done by coating the pinion with a lead based grease. after rotating the drum, the grease marks will show the contact area. the pinion should contact the girth "ring" near the center of the gears.

Sag Mill Ring Gear - mbokodoinns.co.za

sag mill drives girth gears at 18000 hp - sxctezpur. Ring gear drives huge grinding mill - Machine Design. Following the SAG mill will be two 9,000-hp ball mills, each one 20-ft in diam . 18,000 hp to the mill, Allis Mineral Systems selected a ring-gear drive with two . Get Price And Support Online ; Gearless mill drives - Grinding | ABB. ABB's Gearless mill drive system is the most powerful ...

Girth gear testing using advanced NDT phased array eddy ...

Gear Test. Girth gears, pinions, bull gears and sugar mill drive trains are critical components and need to have regular inspection so operators know they're in …

Girth Gear

Girth gears (Gear wheels) are large ring gears which are normally fitted to the outside of ball mills or rotary kilns to provide the primary rotational drive,which is required to be operated in a long time So, the quality requirements during the actual production for the big gear ring are very high Girth gears are applied in the mining, cement ...

Ring gear drives huge grinding mill | Machine Design

In a ring-gear (or girth gear) ... 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 ...