Metso Outotec has received an order for the delivery of a Premier SAG mill to Northern Star Resources’ Thunderbox gold mine expansion near Kalgoorlie, Western Australia.

The order, valued at about US$15 million depending on the project’s final scope, has been booked in the equipment maker’s 1H21 orders received. A delivery date was not disclosed.

MetsoNorthern Star reported that the mill will be its largest to date; the mine’s expansion is set to increase its hard rock processing capacity from 3 million tonnes per year to 6 Mt/y. The miner said it selected Metso Outotec because of its existing collaborative efforts as well as its locally based experience.

The gear-driven Premier SAG mill to be delivered will feature 18 MW of motor power, added Christoph Hoetzel, grinding business head at Metso Outotec.

The Thunderbox gold mine is located in the Yandal Belt.