Metso awarded an order for energy-efficient comminution equipment for the Nyanzaga gold project in Tanzania
Metso Corporation’s press release on May 6, 2025, at 10:00 a.m. EEST
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 PremierTM grinding mills with a total installed power of 21MW. The equipment will be installed at Sotta Mining’s Nyanzaga gold project in northwest Tanzania. The order value exceeds EUR 20 million and it has been booked in the Minerals segment’s 2025 first-quarter orders received.
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 PremierTM 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.
Further information:
Kai Rönnberg, Vice President, Minerals, Asia Pacific, Metso, tel. +61 407 020 306, email: kai.ronnberg(at)metso.com
Helena Marjaranta, Vice President, Communications and Brand, Metso Corporation, tel. +358 20 484 3212, email: helena.marjaranta(at)metso.com
Metso is a frontrunner in sustainable technologies, end-to-end solutions and services for the aggregates, minerals processing and metals refining industries globally. We improve our customers’ energy and water efficiency, increase their productivity, and reduce environmental risks with our product and service expertise. We are the partner for positive change.
Metso is headquartered in Espoo, Finland. At the end of 2024 Metso had close to 17,000 employees in around 50 countries, and sales in 2024 were about EUR 4.9 billion. Metso is listed on the Nasdaq Helsinki.
