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On the comparison between measured and calculated stresses ...

Oct 02, 2014· The remedial design of the stator of the gearless mill drive (GMD) of the 40 ft SAG mill at Cadia Hill was the project that defined the success of EAnD and the careers of its two engineering managers, Bill Lai and Chris Meimaris.

outokumpu 40 foot sag mill

SAG 2001 COMMINUTION PAPERS DESIGN OF THE 40 FOOT DIAMETER SAG MILL INSTALLED AT THE CADIA GOLD COPPER MINE Prepared by: R. Dunne, S. Morrell, G. Lane, W. Valery and S. Hart THE DECISION TO OPT FOR HIGH PRESSURE GRINDING ROLLS FOR THE BODDINGTON EXPANSION Prepared by: B. Parker, P. Rowe, G. Lane, S. Morrell …

Gearless Drives

Cadia Valley Underground Mine is located 22 km SW from Orange, New South Wales, Australia. ... (HPGR) unit treating screen undersize prior to the SAG mill; • Primary open circuit milling in a single 40-ft SAG mill fitted with a 20 MW motor. The motor will be upgraded to 22 MW.

Gearless Drives

Nov 01, 2011· The Cadia SAG mill is 40 ft in diameter and the shell of the mill is 22 ft long between flanges. Strain gauges were applied to the Cadia mill at the locations shown in Fig. 2 . The gauges were placed in similar locations to those on the Telfer mill but the feed end head gauges were omitted due to access restrictions during relining of the mill.

Siemens modernises SAG mill gearless drive in Cadia Valley ...

The design of the 40-foot diameter SAG mill installed at the Cadia Gold Mine, New South Wales Australia, followed after two years of an extensive laboratory.

NOVEL COMMINUTION MACHINE MAY VASTLY IMPROVE …

Cadia Valley Underground Mine is located 22 km SW from Orange, New South Wales, Australia. ... (HPGR) unit treating screen undersize prior to the SAG mill; • Primary open circuit milling in a single 40-ft SAG mill fitted with a 20 MW motor. The motor will be upgraded to 22 MW.

II

The SAG mill is the third 40-ft unit to be driven by a Siemens system, the other two being the Sino Iron unit and another at Newcrest Mining's Cadia Valley mine in Australia. The Los Bronces SAG mill drive is rated at 22 MW and the ball mill drives at 16.4 MW.

(PDF) Design of the biggest mill in the world

Oct 25, 2018· An Arrium company Molinos SAG de 40´ Actualmente en Operación D (ft) L (ft) Motor (Kw)) Ore Country Name Mill Supplier 40 22 19,390 Gold Australia Cadia 40 24 20,980 Cooper Chile Collahuasi 40 26 21,980 Copper Chile Esperanza FL 40 26 23,860 Copper Chile Las Bronces FL 40 24 19,980 Copper Canadá Endako Mill 40 ...

cadia primary crusher canada

In June 1998, the world's largest grinding mill, the 40 ft (12.2 m) diameter 20 MW Cadia gearless SAG mill, was commissioned. This was a leap of over 40% above the largest operating SAG mill. A significant saving in capital cost gave the incentive necessary for a single mill line at Cadia, resulting in the selection of the 40 ft (12.2 m ...

Worldslargest Gold Ball Mill

Worldslargest Gold Ball Mill. We have Worldslargest Gold Ball Mill,World largest tombores for copper ore ball mills design of the 40 foot sag mill installed at the cadia gold copper in 1998 the worlds largest sag mill and two of the worlds largest ball mills were commissioned at newcrest minings cadia hill property in new south wales

cadia hill sag mill in nepal

At the Cadia Valley Operations, Newcrest operates two underground mines and one open pit mine. Ore is processed to a heavily auriferous copper concentrate in a crushing, grinding and flotation circuit. This two-stage grinding circuit consists of a 40 ft SAG mill with a 20 MW Siemens gearless drive and two parallel 10 MW gear driven ball mills.

Major FL mill order for Russian copper mine includes ...

Jan 13, 2015· 40 ft (12.2 m) diameter 20 MW Cadia gearless SAG mill, was commissioned. ... SAG mill and 22 ft x 33.5 ft (6.7 m x 10.2 m) ball mills}. There was ..... proposed change involves the addition of 1.6 m, to give a total trommel... Read more. kavali.doc - Minerals Engineering International Online.

Design of the 40 foot SAG Mill Installed at the Cadia Gold ...

The University of Queensland's institutional repository, UQ eSpace, aims to create global visibility and accessibility of UQ's scholarly research.

40 foot autogenous grinding mills

SAG mill drives (as GMDs) by some operators and principal motor designers/manufacturers until the reasons for known problems in design or manufacturing were better understood and resolved. Accordingly, the latest 40 ft dia. SAG mill is rated at 29 MW and 78% C.S., with a 42 ft dia. mill built but not yet operational. The more recent option

Ball Mill Research Papers

the 2006 modification was successful in upgrading the Cadia 40 ft. SAG mill with longer liner life, improved throughput, and more efficient kW-h/t, the upgrades fell short of the 40 ft mill's potential. Figure 1 shows the Cadia 565 mm high lifters. The liner height and pitch needed to be increased further to realize this potential.

40 foot autogenous grinding mills

Jan 01, 2000· It is suggested that the standard adopted is the '40 ft SAG mill' at Cadia Hill (Figure 4). The reasons for this choice are that it is a large mill, ...

Mill drives: the desire for increased power and the ...

At the Cadia Valley Operations, Newcrest operates two underground mines and one open pit mine. Ore is processed to a heavily auriferous copper concentrate in a crushing, grinding and flotation circuit. This two-stage grinding circuit consists of a 40 ft SAG mill with a 20 MW Siemens gearless drive and two parallel 10 MW gear driven ball mills.

SAG 2001 COMMINUTION APERS

design processing rates of the Cadia Hill SAG mill circuit and that could be easily manipulated were; SAG Mill Load Ball Charge - SAG mill power draw was guaranteed by the vendor at 13% ball charge and 30% total volume to be 20.96MW for the 40 foot diameter SAG mill. In practice this power draw was never achieved I-14 (Dunne et al 2001).

Moly cop molienda sag

Description The Concentrator 1 plant at Cadia transitioned from Cadia Hill open pit to the Cadia East block cave ore body in 2013 As a result of this change major plant upgrades were required to achieve the desired throughput while treating more competent ore The 40foot 40' SAG mill now receives a feed of predominantly high pressure grinding rolls HPGR product with a minor …

Modernization down under

Concentrator 1 was commissioned in 1998, designed for Cadia Hill ore and had a design capacity of 17 Mt/a. In 2012, Concentrator 1 was upgraded for the processing of harder Cadia East ore which included the addition of a HPGR circuit, ahead of the SAG Mill, and a third ball mill and third flotation train.

MILL OPERATORS CONFERENCE 2012 TALK 011

The University of Queensland's institutional repository, UQ eSpace, aims to create global visibility and accessibility of UQ's scholarly research.

On the comparison between measured and calculated stresses ...

Oct 02, 2014· The Cadia SAG mill diameter is 40 ft and the ring motor that drives the mill is rated at 20 MW. In 1998 when the mill and motor were commissioned both were the largest machines of their type in the world. The stator exhibited vibration excursions that appeared to be related to the mill speed.