Tag Archives: ST14 Battery

Glencore’s CSA mine set to use Epiroc ST14 Battery LHD

Glencore is to introduce a new battery-electric LHD from Epiroc at its CSA copper mine in Cobar, New South Wales, as it looks to reduce diesel emissions and energy costs, plus improve operator safety and productivity performance at the operation.

The ST14 Battery loader will be one of the first of its kind to be used anywhere in the world, Glencore said, with the mine’s operators set to start using it later this month.

These 14 t payload battery-electric loaders have also been used at Agnico Eagle’s Kittila gold mine in northern Finland as part of the SIMS project, while LKAB is looking to use one of the units at its main Kiruna iron ore mine for production and in the Konsuln test mine, both in Sweden. Boliden, meanwhile, has been testing an ST14 Battery at its Kristineberg underground copper-zinc mine in the country.

In the Americas, Vale is set for the delivery of four Scooptram ST14 Battery loaders at its Canada underground mines as part of a 2020 agreement with Epiroc, while Codelco, in 2020, said it would soon start testing one of these units in Chile.

CSA is one of Australia’s deepest underground mines and produces about 50,000 t/y of copper in concentrates. The battery-electric loader is set to transport thousands of tonnes of ore and waste per day, operating at a depth of almost 2 km underground, Glencore said.

“The copper we produce at CSA Mine is a key enabler of the low carbon economy, and is an essential commodity that goes into electric vehicle batteries and renewable energy technologies like wind turbines and solar panels,” Peter Christen, General Manager of Glencore’s CSA Mine, said.

“We are committed to reducing emissions across our own operations and our investment in the ST14 Battery Loader is an important step in the broader transformation of mining in a low carbon future.”

Boliden testing Epiroc battery-electric loader at Kristineberg

As Boliden continues to pursue further development of the Kristineberg underground copper-zinc mine in Sweden, it is increasing its understanding of the use of battery-electric vehicles at its underground operations.

Last month, the company outlined a SEK1.25 billion ($150 million) investment at Kristineberg – most of which is conditional on a production expansion permit – towards further developing the mine towards the Rävliden mineralisation. The expansion is expected to contribute to an increase in milled volumes in the Boliden Area to 1.8 Mt/y.

While this is happening, the company, in partnership with Epiroc, has been testing a 14 t ST14 Battery LHD at the mine.

Testing of the machine commenced in the March quarter and is expected to last 12 months. It has involved the installation of a battery swap and charging station (with overhead crane), and the switching of two batteries on site as testing has ramped up.

Patrik Hansson, Senior Development Engineer of Mining Technology at Boliden Mines, told IM the testing has been limited to a specific part of the mine – the L-Area, 850-1,000 m level. He said the ST14 Battery is the first battery-powered LHD tested across the company.

“We have several KPIs that we are following and evaluating, and comparing to our normal diesel equipment,” Hansson said. Included among the KPI list is tramming distance, driving time, equipment utilisation, equipment availability, production (t/mth), energy consumption (kWh/t), operator acceptance, ambient temperature, air quality (CO, NOx, CO2, diesel particulate matter), humidity level and noise level.

Boliden has submitted an application for expanded production at the Kristineberg mine to the Swedish Land and Environment Court. At the same time, it has decided to make preparatory investments in, among other things, infrastructure and water treatment. Conditional on the application being approved, Boliden will complete the investment, which includes a new ramp and a new crushing station. Production is expected to start in 2023.

In addition to increased mine production, a completed expansion means the life of the Kristineberg mine will be extended and that capacity utilisation in the Boliden Area’s concentrator will be improved.

At Kristineberg, cut and fill mining and drift and fill mining methods are used to mine the mineralised material underground. Generally, levels wider than 10 m are mined with drift and fill mining. In levels with widths between 6-10 m, slashing is used to mine any remaining mineralised material on the walls of the mining room. In the uppermost slices, residual mining is also practiced to mine the sill pillars.