# dual pinion sag mills

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### An electrical impact study between variable speed dual

2015 10 22 An electrical impact study between variable speed dual pinion mills and gearless mill drives Abstract Conventional mining process circuits use both Semi Autogenous Grinding SAG and Ball mills It is very common that the SAG mills are operated with adjustable frequency drives AFDs and the Ball mills are operated at fixed speed 1 .

Get Price### inching drive for sag mill

Mill motor gear drives can be offered for AG/SAG grinding mill as dual pinion drives with power deliver of up to 20 MW 2 x 10 000 kW and this can be accomplished on mill sizes up to 36 ft in diameter Get More BALL MILL 100 KGYouTube Get Price Inching Drive For Sag Mill.

Get Price### 36 x 24 Fl Dual Pinion Sag Mill 2 Abb 9000 KW

36 x 24 Fl Dual Pinion Sag Mill 2 Abb 9000 KW 12069 HP Motors For Total Power Of 18 000 Kw 24138 HP new for sale manufactured by Fl Contact A M

Get Price### CMP Paper 16.10.09 Final

2018 5 9 dual pinion solutions were developed to power the mills However realization of the dual pinion solution was only possible when load could be evenly shared between the two pinions When mill diameter and mill power became again increased only the Gearless Mill Drive GMD could be envisaged to cover this requirement above 10 MW.

Get Price### Paper # 25

2021 2 17 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 mills the new state of the art dual pinion mill drives.

Get Price### crown pinion alignment ball mills

2021 10 25 Gears And Pinion For Ball Mill Ball mill pinion alignment pdf riskmark from common ball mills there is a second type of ball ball mill alignment pdf zenith grinding mills and their dual pinion mill how to align ball mill pinion to drive motor sag mill ball mill ring gear dual pinion drive systems variable speed introduction alignment Get Price

Get Price### Dual pinion drive systems for Detour Gold s new mine

ABB is to deliver four low speed dual pinion drive systems to Detour Gold s new gold mine in Canada Construction of the 55 000 t/d open pit operation is expected to start later this year

Get Price### Mill Dual Motor Sag Mills

Used Sag mills For SaleA.M King Inventory ID 6C HM03 UNUSED FL 36 x 24 Dual Pinion SAG Mill with 2 ABB 9 000 kW 12 069 HP Motors for Total Power of 18 000 kW 24 138 HP

Get Price### Mill drives the desire for increased power and the

2021 9 11 design mill speed and the maximum design ball charge volume Barratt 1989 For single pinion and dual pinion drives with 21 MW now a distinct possibility the probability of pinion changes to a higher mill speed should always be considered when set

Get Price### 1 x SAG Mill Siemens Motor

2019 2 25 2 x Ball Mills 4 x GE Motors For Sale/Re Assignment Mill Details 2 x Ball Mills 4 x GE Motors Type of Mill Ball Mill Mill Dimensions 6 706 mm x 11 125 mm 22 x 36.5 D x L Mill Speed 12.44 RPM Liners Excluded Mill Drive Motor Type Dual Pinion Synchronous 2 Motors per Mill Mill Drive Motor Size 2 x 4 650 kW min = 9 300kW per mill

Get Price### Mt Milligan Mine British Columbia

2021 10 6 ABB was contracted to provide power technology equipment for the project The company supplied the gearless mill drive for the SAG mill as well as two dual pinion mill drives for ball mills ABB also provided transformers motors electrics and synchronisers under a C 28m contract awarded in

Get Price### dual pinion grinding mill

dual pinion grinding mill Filters Type Inspire Our News Author Industry From Year Month Day To Year Month Day GE welcomes double success with projects for the Clean Maritime Demonstration Competition Sep 15 2021 article GE Power Conversion contributes to the development of the first Purified Terephthalic Acid

Get Price### Update On JHEP SAG Mill Drive Selection

2016 1 23 All parameters above are good for a 22.5MW to 24MW dual pinion SAG mill drive Changes to AGMA standard have revitalised the large gear cutting industry and soon a machine shop in Holland will be able to fabricate gears of the following parameters 20 meters in diameter = 65.6 feet 1.5 meters in face width 400 tonnes of machined weight.

Get Price### sag mill pinion failure modes

The Failure and ball mill journal bearing ball mill failure modes pdf ball mill pinion failure in south Get Price And Support Online A Publication of the Lubrication Engineers Technical if a ball mill or SAG mill is out of operation for one hour at a Chilean Copper Mine it costs the mine 200 000 or 300 000

Get Price### dual pinion sag mill vs single pinion sag mill

Sag mill is fitted with a dual pinion drive 6.5 mw per pinion and is driven by a variable speed drive comprised of a serhyper synchronous drive the 24 ft 39 ft 13 mw ball mill is driven by dual 6.5 mw wound rotor motors through reduction boxes and gear and pinion drives the sag mill discharge is screened on a rotating trommel.

Get Price### SAG Mill

Since the early 1980s we have been designing and manufacturing Semi Autogenous Mill SAG Mill and Autogenous Mill AG Mill under the Fuller Traylor brand Semi autogenous grinding uses a minimal ball charge in the range of 6 15 while autogenous grinding uses ore only SAG and AG Mills operate by lifting ore/grinding media and dropping it on

Get Price### Mt Milligan Mine British Columbia

2021 10 6 ABB was contracted to provide power technology equipment for the project The company supplied the gearless mill drive for the SAG mill as well as two dual pinion mill drives for ball mills ABB also provided transformers motors electrics and synchronisers under a C 28m contract awarded in

Get Price### Unused Sag mills For Sale

UNUSED FL 36 x 24 Dual Pinion Sag Mill with 2 ABB 9 000 kW 12 069 HP Motors for Total Power of 18 000 kW 24 138 HP Inventory ID 6C HM03 Manufacturer FL

Get Price### Sag Mill Synchronous Motors

Dual Pinion Sag Mills Coal Crushercoal Millcoal Crushers DUAL PINION MILL DRIVES The SAG and the two ball mills are gear driven and Copper Mountain selected the sophisticated low speed dual pinion mill drives from ABB to Get Price Ball Mill 40 Poles Motor Drawing Coal Surface Mining Samac.

Get Price### Used Sag mills For Sale

Inventory ID 6C HM03 UNUSED FL 36 x 24 11m x 7.3m Dual Pinion SAG Mill with 2 ABB 9 000 kW 12 069 HP Motors for Total Power of 18 000 kW 24 138 HP

Get Price### sag mill ring gear failure grinding mill china

Rtical Mill Gear Dual Pinion ball mill torque dual pinion failurebombayortho OVERVIEW ON THE GRINDING MILLS AND THEIR DUAL PINION KEYWORDS SAG mill ball mill ring gear dual pinion drive systems variable speed the Copper Mountain mills only a torque limiting coupling is used in place of an air clutch to problems on the mechanical Live Chat

Get Price### SAG mills

Gearless mill drive GMD technology has further expanded the use of large SAG milling allowing Outotec to produce the world s largest SAG mill of 42 in diameter drawing power at 28 MW Today Outotec is the world leading supplier of gearless SAG mills operating globally.

Get Price### Ring geared mill drives

Mill load sharing Maintains equal torques on dual pinion mills throughout the whole speed range Controlled rollback Prevents backlash and reduces downtime Mill power ride through Keeps the mill operating even under voltage dips Over duty cycle Avoids unexpected downtime if the mill

Get Price### Speedy SAG Mill System Upgrade Minimizes Downtime

2012 11 25 The mine s dual pinion 11 000 hp SAG mill is a critical link in the produc tion chain which requires it to operate all day every day all year except for scheduled maintenance downtime For more than 20 years Robinson successful ly employed a Siemens Simine Mill GD system to power and control this mill and although the mill was in good

Get Price### What s the Difference Between SAG Mill and Ball Mill

2019 11 26 The biggest characteristic of the sag mill is that the crushing ratio is large The particle size of the materials to be ground is 300 400mm sometimes even larger and the minimum particle size of the materials to be discharged can reach 0.1 mm The calculation shows that the crushing ratio can reach 3000 4000 while the ball mill s

Get Price### Largest Gear Driven Sag Mill

2021 8 24 WEG Provides Innovation In Ball Mill And SAG Drives With weg performed unprecedented equipment testing for solution in ball mill drive with dual pinion 09/17/2013 weg announced that it has successfully tested its new solution of low speed synchronous motors driven by frequency inverters for mills with dual pinions at its testing facility in brazil due to the complexity and costs this

Get Price### sag mill ring gear failure grinding mill china

Rtical Mill Gear Dual Pinion ball mill torque dual pinion failurebombayortho OVERVIEW ON THE GRINDING MILLS AND THEIR DUAL PINION KEYWORDS SAG mill ball mill ring gear dual pinion drive systems variable speed the Copper Mountain mills only a torque limiting coupling is used in place of an air clutch to problems on the mechanical Live Chat

Get Price### AG mills

We are essentially providing up to twice the power transmission of a conventional dual pinion drive Gearless mill drive GMD technology has further expanded the use of large AG milling allowing Outotec to produce the world s largest SAG mill of 42 in diameter drawing power at 28 MW Today Outotec is the world leading supplier

Get Price### TECHNICAL How to Spec a Mill Gear

2014 7 17 the mill builder can provide the gear designer with input power and output speed The next step is the interface dimen sions Since the gear needs to turn the mill it needs to have a bore larger than the mill outside diameter The mill out side diameter is a function of the grind ing process selected Autogenous mills

Get Price### Dual pinion drive systems for Detour Gold s new mine

ABB is to deliver four low speed dual pinion drive systems to Detour Gold s new gold mine in Canada Construction of the 55 000 t/d open pit operation is expected to start later this year

Get Price### sag mill dion pinion drive

SAG millsOutotec We are essentially providing up to twice the power transmission of a conventional dual pinion drive Gearless mill drive GMD technology has further expanded the use of large SAG milling allowing Outotec to produce the world s largest SAG mill

Get Price### SAG Mill Components

2018 4 18 SAG Mill Components Once the basic operating conditions have been defined for the mill designer then and only then can he begin taking into account shell and head stresses and trunnion bearing sizes required to carry the load and to give the required openings for feeding and discharging the mills Mill heads are key structural components of

Get Price### Successful Design of the NICO Grinding Circuit for

2021 1 19 29 kWh/t of SAG pinion energy to achieve 1.7mm T80 represented the correct design hardness for the NICO project mills And whether the total pinion energy SAG plus ball mill was sorted by increasing SAG or by increasing total pinion energy the result was the same.

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