Metso awarded an order for energy-efficient comminution equipment for Sotta Mining’s Nyanzaga gold project in Tanzania

Perseus Mining Limited’s 80 % owned subsidiary Sotta Mining Corporation Ltd. has awarded Metso an order for a SuperiorTM MKIII 4265 primary gyratory and two Metso Plus Premier^TM grinding mills with a total installed power of 21 MW. The equipment will be installed at Sotta Mining’s Nyanzaga gold project in northwest Tanzania. The order value exceeds € 20 million and it has been booked in the Minerals segment’s 2025 first-quarter orders received.

Metso mills
© Metso

Matt Cavedon, General Manager, Project Development at Perseus, noted: “Perseus is looking forward to the successful deployment of Metso’s state-of-the-art comminution technology, alleviating gearboxes with the benefits of precision control and high efficiency.”

“The Premier^TM SAG mill and ball mill to be delivered to the Nyanzaga project feature low-speed synchronous motor drives without conventional gearboxes. This makes the mills very reliable and very efficient – a 2 % saving in energy consumption when compared to traditional gearbox-driven mills. Both mills are equipped with Metso’s fail-safe Polymer Hydrostatic Shoe Bearing systems, significantly increasing reliability and reducing maintenance costs,” says Oskar Gustavson, Technology Director, Grinding at Metso.

Metso’s Premier™ horizontal grinding mills are completely customizable solutions built on state-of-the-art grinding mill technology, process expertise, and design capability. The Premier™ horizontal grinding mills are engineered to excel and create vast possibilities for customers and applications. In addition, Metso’s offering includes pre-engineered Select™ horizontal grinding mills and state-of-the-art mill reline equipment, as well as a broad selection of liner options, including the innovative Megaliner™. Complementary services include horizontal mill inspections programs, Life Cycle Services (LCS) contracts for planned shutdowns and maintenance, and a full range of spare and wear parts. Metso's Superior™ MKIII primary gyratory crushers provide high throughput and less downtime to maximize operational efficiency.

Read more about the SuperiorTM primary gyratory crushers and PremierTM grinding mills on our website.

www.metso.com