Metso Completes Acquisition of Swiss Tower Mills Minerals

Tue April 01, 2025
Metso

Metso has received the relevant regulatory approvals and completed the acquisition of its long-time partner Swiss Tower Mills Minerals AG (STM).

STM's expertise in vertical grinding mills strengthens Metso's comminution solutions portfolio for the mining industry, playing a vital role in energy-efficient solutions for the diverse needs of customers and enabling Metso to provide enhanced service levels to customers using stirred mill technology.

"We warmly welcome our colleagues from Swiss Tower Mills Minerals to the Metso team," said Piia Karhu, president, minerals of Metso. "Our collaboration on innovative grinding solutions and services combining, for example, the well-established HIGmill and Vertimill vertical grinding solutions and HRC high-pressure grinding roll technology has yielded significant results for our customers. And now that we are one team, our customers can expect even more."

"Mining customers value Metso's vast expertise and the comprehensive nature of our technology and services solutions," said Christoph Hoetzel, senior vice president, grinding of Metso. "We see a trend towards optimized technology combinations and multi-stage grinding approaches. These solutions improve energy efficiency and reduce carbon emissions, in addition to enhancing productivity with optimized operating costs. The HIGmill is a cornerstone for energy-efficient comminution circuits. Combined with Metso's innovative flotation solutions like the Concorde Cell, it enables maximized throughput as well as superior recovery."

"Swiss Tower Mills Minerals was founded in 2011 with the vision of achieving outstanding grinding performance and unparalleled energy efficiency with vertical stirred mills," said Oliver Zlamal, CEO, Swiss Tower Mills Minerals. "Our joint journey with Metso began a year later, in 2012, when Metso was granted exclusive rights to sell the HIGmill equipment. Over the past few years, we have built a fantastic team and developed innovative solutions that are now ready to be scaled within a bigger structure. We are delighted that the STM experts and technology will find a new home at Metso."

Comprehensive Stirred Mills Offering With Large Installed Base

Metso's stirred milling technologies portfolio consists of Vertimill, HIGmill and Stirred Media Detritor (SMD) mills. These mills are based on gravity-induced and fluidized technologies, allowing for an equipment solution for all comminution circuits in secondary, tertiary, fine, ultrafine, regrind and lime slaking applications. Metso has over 50 years of experience in developing, testing and delivering stirred mill technology, including a large installed base. Stirred mills are part of the Metso Plus offering.

Metso supports its minerals and metals refining customers with end-to-end solutions and services ranging from testing, equipment and digital solutions to comprehensive service and repair center capabilities.