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February 24, 2020updated 30 Jun 2020 2:08pm

Indonesia’s Martabe gold mine to use Metso grinding technology

Exploration, mining and mineral processing firm PT Agincourt Resources (PTAR) has selected Metso’s energy-efficient grinding technology for use at its Martabe gold mine in Sumatra, Indonesia.

Exploration, mining and mineral processing firm PT Agincourt Resources (PTAR) has selected Metso’s energy-efficient grinding technology for use at its Martabe gold mine in Sumatra, Indonesia.

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As ore mines ramp up and come on stream, the total number of active surface machines (including trucks, excavators, shovels, loaders, graders and dozers) is forecast to rise from 141,470 in 2020 to 167,367 by 2025. This will be a CAGR of 3.4% from 2020 to 2025. The largest contributor to this growth is expected to be trucks, particularly smaller-sized trucks with shorter lifespans, used extensively in parts of Asia Pacific. Underground mining equipment is similarly expected to see a CAGR of 2.3% in this same time frame, with the number of mining trucks and loaders/LHDs in active underground mines expected to rise to 19,853 by 2025. GlobalData’s extensive mine-site research and equipment models have been used to build a complete view of mobile mining equipment populations globally for trucks, loaders, graders, dozers, excavators and shovels. This report includes informative breakdowns by each major region and key mining country, and also by major commodity. Read GlobalData’s Global Surface and Underground Mining Equipment: Populations & Forecast to 2025 for a complete view of the market, allowing you to best position yourself for the future.
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PTAR has chosen Metso’s Vertimill VTM-4500 stirred mill, which Metso claims is the largest to be installed in Indonesia.

Metso noted that the machine is expected to be commissioned by July next year.

PTAR operations director Darryn McClelland said: “PTAR worked with Orway Minerals on the circuit concept and with Ausenco on the process flowsheet design, and Metso won the competitive tender process for the additional milling capacity deemed a requirement from the process modelling.

“Engagement with Metso in Indonesia supporting this work and their ability locally was also important when selecting the appropriate vendor.”

The Metso Vertimill has been designed to deliver high energy efficiency and reduced media consumption. It also provides customers with low installation cost, and minimal liner wear and maintenance.

Capable of handling feed sizes up to 6mm and grinding to products less than 20 microns, Metso Vertimill is available in standard mill sizes ranging from 15HP to 4,500HP.

Metso Asia-Pacific vice-president Ben Weetman said: “We are proud to have PT Agincourt Resources as our customer. The Martabe gold mine has utilised Metso crushers and additional equipment in their production process, and the Vertimill is an excellent choice for further increasing their comminution circuit’s output.”

PTAR’s sole operating site is the Martabe gold mine.

In August 2018, Australian private equity firm EMR Capital agreed to offload its 80% stake in the Martabe gold and silver mine to PT Danusa Tambang Nusantara for $1.21bn.

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Dig deeper with our mining equipment forecasts

As ore mines ramp up and come on stream, the total number of active surface machines (including trucks, excavators, shovels, loaders, graders and dozers) is forecast to rise from 141,470 in 2020 to 167,367 by 2025. This will be a CAGR of 3.4% from 2020 to 2025. The largest contributor to this growth is expected to be trucks, particularly smaller-sized trucks with shorter lifespans, used extensively in parts of Asia Pacific. Underground mining equipment is similarly expected to see a CAGR of 2.3% in this same time frame, with the number of mining trucks and loaders/LHDs in active underground mines expected to rise to 19,853 by 2025. GlobalData’s extensive mine-site research and equipment models have been used to build a complete view of mobile mining equipment populations globally for trucks, loaders, graders, dozers, excavators and shovels. This report includes informative breakdowns by each major region and key mining country, and also by major commodity. Read GlobalData’s Global Surface and Underground Mining Equipment: Populations & Forecast to 2025 for a complete view of the market, allowing you to best position yourself for the future.
by GlobalData
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