Metso has officially completed the acquisition of Swiss Tower Mills Minerals AG (STM), following the necessary regulatory approvals. This acquisition significantly strengthens Metso’s position in the mining industry by enhancing its comminution technology portfolio. STM’s expertise in vertical grinding mills will play a crucial role in advancing Metso’s future-ready, energy-efficient solutions, meeting the diverse needs of customers. This acquisition also allows Metso to deliver improved service offerings to those utilizing stirred mill technology.
“We are excited to welcome Swiss Tower Mills Minerals to the Metso family,” said Piia Karhu, President of Minerals at Metso. “Our longstanding collaboration on innovative grinding technologies, such as the well-known HIGmill™ and Vertimill® vertical grinding mills, alongside our HRCTM high-pressure grinding roll technology, has produced impressive results for our clients. Now, as one unified team, we are poised to deliver even greater value to our customers.”
Christoph Hoetzel, Senior Vice President of Grinding at Metso, added, “Our mining customers appreciate Metso’s extensive expertise and the comprehensive nature of our technological and service solutions. We are witnessing a growing trend towards optimized technology combinations and multi-stage grinding methods. These solutions not only improve energy efficiency and reduce carbon emissions but also boost productivity while optimizing operating costs. The HIGmill™ serves as a key component for energy-efficient comminution circuits. When paired with Metso’s advanced flotation solutions like the Concorde Cell™, it offers maximum throughput and superior recovery.”
Oliver Zlamal, CEO of Swiss Tower Mills Minerals, reflected on the journey, saying, “Founded in 2011 with a vision of delivering exceptional grinding performance and energy efficiency through vertical stirred mills, our collaboration with Metso began in 2012 when Metso was granted exclusive rights to sell the HIGmill™. Over the years, we’ve built a strong team and developed innovative solutions. Now, as part of Metso, we’re excited that STM’s experts and technologies will thrive within this larger framework.”
Metso’s stirred milling technologies portfolio is now more comprehensive than ever, including the Vertimill®, HIGmill™, and Stirred Media Detritor (SMD) mills. These mills employ gravity-induced and fluidized bed technologies, offering an optimal solution for a variety of comminution circuits, from secondary and tertiary to fine, ultrafine, regrind, and lime slaking applications. With over 50 years of experience in developing, testing, and delivering stirred mill technologies, Metso boasts a large installed base. Stirred mills are also part of the Metso Plus offering.
Metso continues to support its minerals and metals refining customers with cutting-edge, end-to-end solutions and services. These range from equipment testing and advanced digital solutions to full-service capabilities, including equipment repair and maintenance.
