### ball mill liner thickness measurement tools

Benchmarking: Cadia SAG mill - SAGMILLINGCOM. SAG mill diameter inside liners = 12024 m (40 ft, 33 inch effective liner thickness) SAG mill effective grinding length = 6072 m (199 ft) The paper erroneously says belly length is 22 ft in Table 2. Evaluation of Abrasive Wear Measurement Devices, 2 Abstract Measurement of the liner wear in the ...

### ARE SAG MILLS LOSING MARKET CONFIDENCE?

Cadia was commissioned in 1998 (Dunne et al., 1999, 2001), Sossego in 2004 (Delboni et al., ... poor understanding of scale-up factors from 6 foot diameter pilot plant mills to 40 foot diameter plant mills. ... limitations in SAG mill speed due to severe breakage of mill liners at higher speeds, 6 | P a g e ...

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

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

### SUPPLY, INSTALLATION, & COMMISSIONING OF THE .

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 ...

### The evolution of the Cadia 40-foot SAG mill to treat the ...

The evolution of the Cadia 40-foot SAG mill to treat the Cadia East orebody: a case study of incremental change leading to operational stability, in Proceedings 14th AusIMM Mill Operators' Conference 2018, pp 217–232 (The Australasian Institute of Mining and Metallurgy: .

### Grinding Mill Control Types - Grinding & Classification ...

The trend in mill liner shapes has changed from olden days when the liner/lifter pitch set = 2 x mill diameter in (ft.). Today, the liner pitch set should be half that ancient value or less. Most mills are handicapped by the bolt pattern set by the old design philosophy. Cadia 40 ft. mill .

### Cadia GMD Stator: Preface

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.

### Modernization down under - Siemens upgrades gearless ...

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 (semi-autogenous grinding) Mill with a 20 MW Siemens gearless drive and two parallel 10 MW gear driven ball mills.

### copper sag mill discharge

supply, installation, & commissioning - Boughey Pty Ltd. 40 ft (12.2 m) diameter 20 MW Cadia gearless SAG mill, ... The plant facilities includes a copper concentrator, extensive water ..... discharge end.

### (PDF) Design of the 40 foot diameter SAG mill installed at ...

PDF | On Sep 1, 2001, R. Dunne and others published Design of the 40 foot diameter SAG mill installed at the Cadia gold copper mine

### Cadia GMD Stator: Observed Behaviour and Modelling

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.

### 2009 Gearless Mill Drives - CB&MUA

Gearless Mill Drives Machinery Risk Solutions Practice 2009 Matt Dugalic P.Eng., ... CADIA Australia SAG-Mill 40 20,000 1998 Plant Country Type of Mill ID of Mill (ft) Rated Power (kW) Start-up ... Gearless Drive 20 000 kW for a 40 ft. SAG-Mill Commissioning in May 1998 Elastic Deflections During Startup Vibrations

### Benchmarking: Cadia SAG mill - SAGMILLING.COM

Benchmarking: SAG Mill Power Draw - Cadia. Radziszewski, P.; Valery, W, Cadia SAG Mill Simulated Charge Behaviour, Annual General Meeting of the Canadian Mineral Processors, Ottawa, 1999. SAG mill diameter inside liners = 12.024 m (40 ft, 3.3 inch effective liner thickness) SAG mill effective grinding length = 6.072 m (19.9 ft)

### sag mill trunnion bearing - educationcare

40 ft (12.2 m) diameter 20 MW Cadia gearless SAG mill, was commissioned. ..... strength of the trunnion liner, the trunnion bearing load capacity, bolted joint... More details » Get Price zenith Minerals

### sag mill plant project - ristorantecaminetto

40 ft cadia sag mill - stone crusher plant for rent and ... Project Plant>40 ft cadia sag mill . Rating. 4.8 (2866 Ratings) ... The 28 MW GMD for the 40 ft SAG mill of .

### The evolution of the Cadia 40-foot SAG mill to treat the ...

The evolution of the Cadia 40-foot SAG mill to treat the Cadia East orebody: a case study of incremental change leading to operational stability. T. Waters, A. Rice, J. Seppelt, J. Bubnich, B. Akerstrom. 14th AusIMM Mill Operators' Conference 2018, 29-31 August, Brisbane. ABSTRACT.

### SAG Milling in Australia -Revised Submission

SAG MILLING IN AUSTRALIA – FOCUS ON THE FUTURE Greg S Lane Principal Process Engineer, GRD Minproc ... The next constraint was the difficulty of casting a mill head at 40-ft (12.2 m). Although it ... The Fimiston 10.97 m (36 ft) SAG mill uses twin wound rotor/gearbox/ pinion drives with variable speed achieved through CCV systems.

### outokumpu 40 foot sag mill - BINQ Mining

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 . » More detailed SAG Milling in Australia -Revised Submission

### 40-foot autogenous grinding mills

Sag Mill Synchronous Motors - caesarmachinery. Ore Crushers / sag mill synchronous motors 38' x 248' SAG Mill,, the ore is crushed in a huge 40-foot semi-autogenous grinding, We can supply Ball Mills,, sag mill conference sell, Autogenous mills semi autogenous mills and ball mills for, ore grinding Ring motor driven SAG mill for gold ore grinding

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

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.

### cadia svedala mill - bgcatering

Stuart M. 40 ft (12.2 m) diameter 20 MW Cadia gearless SAG mill, . Two 22 ft (6.7 m) diameter Svedala Ball Mills. Regrinding and fine grinding technology the facts 911 Metallurgist. The predecessor of today's VERTIMILL® is the Tower Mill which was In 1996, Svedala and ECC signed a license agreement enabling attrition sand mills to be ..

### Performance Improvement at SAG Mill through Lining ...

Grinding & Classification Circuits. ... I have authored and co-authored 5 papers on liner redesign based on our modifications to the 40 ft Cadia SAG Mill. These papers were published in SAG 2001 and 2006. The modifications increased throughput by up to 6 %, reduced liner replacement by 47%, when you index total tons ground, and reduced liner ...

### Our History as Comminution Consultants - DJB Consultants

1994: Sizing SAG Mills and Ball Mills at Batu Hijau for a 120,000 tpd plant from sampling PQ drill core and 105 geometallurgical samples (i.e., no bulk samples being available for pilot plant test work). 1995: Sizing the first 40 ft dia. SAG Mill at Cadia Hill from Bond Work Index test work.

### NOVEL COMMINUTION MACHINE MAY VASTLY IMPROVE .

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.

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