# dual pinion sag mills

We provide a variety of milling equipments and production line. Welcome to consult and purchase.

E-mail: [email protected]

### 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### pinion drive pinion ball mill

installation twin pinion ball mill SAG mill product feeds two parallel ball mills of 6.6 m 11.1 m internal diameter length each with a 9.7 MW twin pinion drive The ball mills are operated at a ball charge volume of 30–32 and 78.5 critical speed Get Price

Get Price### 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### 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### 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### Hazards In Ball And Sag Mills

SAG mill ball mill ring gear dual pinion drive systems variable speed Read more Training Outotec Grinding Mills Outotec offers training for its range of grinding mills grinding process and maintaining mill in good operating condition Services Outotec Ball mills Safety around grinding mills

Get Price### Semi Autogenous Autogenous Grinding Mills Sag Mills

These mills are typically powered using electricity and depending on the required power have different configurations such as central drive single pinion dual pinion and gearless mechanical set up AG and SAG mills are extensively used in the mining industry for extracting minerals such as metals oil shale limestone rock salt coal

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### 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### Hazards In Ball And Sag Mills

SAG mill ball mill ring gear dual pinion drive systems variable speed Read more Training Outotec Grinding Mills Outotec offers training for its range of grinding mills grinding process and maintaining mill in good operating condition Services Outotec Ball mills Safety around grinding mills

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 Milling in Australia Revised Submission

2014 10 1 MW It has been the industry standard for SAG mills above 13 MW capacity However pinion systems to 8 MW per pinion and dual motor systems with quadruple pinions extend 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.

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 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### 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### My Gear is Bigger than Your Gear

2014 7 17 designs at the moment with dual pinion mills up to 22 000 kW and dual girth gear mills up to 34 000 kW We current ly have an order for a mine in North America for a ball mill gear with a with a 9 000 kW single pinion drive While Fritz doesn t know what gear sizes the competition is supplying to the mining market he does note that

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### 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### WEG Provides Innovation in Ball Mill and SAG Drives with

2013 9 17 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 equipment

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### 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### 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### 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### 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### 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### STEPPING FORWARD USING VARIABLE SPEED DRIVES

2017 4 10 developed for single pinion or dual pinion applications depending on the power of the driven mill High speed solution Typically a high speed squirrel cage motor with three or four pole pairs is used for this kind of configuration A gearbox is needed in this solution where the high speed side is

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### 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### SAGDesign Test

The SAG mill pinion energy W SDT kWh/t and SAG discharge Bond ball mill work index S d BWI kWh/t are then used to calculate the total energy to grind the ore from 80 passing 152 mm to 80 passing the client specified final product size P 80.This information along with the ore specific gravity is used to calculate necessary mill sizes and motor power in industrial applications.

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### Increasing availability through advanced Gearless Drive

2021 9 11 Figure 1 Top view of SAG mills with alternative drive options left side dual pinion drive including motor gearbox pinion and girth gear right side gearless ring motor Declining ore grades leading to increased material transport and plant throughput requirements are one of the

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### vertical mill gear dual pinion

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

Get Price