Swiss Tower Mills Minerals AG

THE ART OF GRINDING

Unlock outstanding grinding performance and
unequalled energy efficiency with vertical stirred mills
from Swiss Tower Mills Minerals AG (STM).
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Proven results and reliability
10 years operating experience, more than 80 mills sold & more than 30 currently operating. From Au to Zn, Australia to Vietnam, our mills are used in a broad range of applications across the globe.

Increase recoveries and revenues
STM’s highly efficient, vertical grinding equipment delivers proven financial performance by increasing the percentage of material recovered and increasing the purity of the recovered material.

Small footprint, expansive range of mill sizes
Vertical arrangement means compact and efficient use of space. From 200 to 125,000 Litres and 75kW to 12,500kW installed power. We understand every ore is unique and can tailor a solution to best suit your needs.

Metso invests in energy-saving future comminution technology by acquiring its long-term partner Swiss Tower Mills Minerals

Swiss Tower Mills Minerals AG biggest mill in operation (6.5 MW installed power)
The successful construction and start-up of the direct reduced (DR)-grade pellet plant at USSteel’s Keetac facility in Keewatin, MN is one of the most substantial private investments on the Iron Range in recent state history.

Explore our industry leading vertical grinding mills
Explore our product pages detailing the key benefits, product range, installation references, and case studies.

STM Global Network
STM is continuously growing and developing our global network of equipment sales and aftermarket support. Explore our current global capacity to see how we can support your enquiries and operations.

Come work with STM!
Join us and help us build a more sustainable future. We are always looking for talented people to join our exciting, growing Swiss company. Check our current open positions and join our mailing list to keep informed of future positions.

STM News

Fortescue’s Australian Ironbridge project commences high grade magnetite production. Installation consists of 10x HIGmill™ 5000/50000 mills in both secondary and tertiary duties in a first large scale HPGR to vertical mill process plant, with no horizontal milling.
Read more here…

Weir Minerals strengthens the alliance with STM minerals and installs a VRM25F vertical mill in their laboratory in Venlo, Netherlands alongside Weirs Enduron® laboratory HPGR.
Read more here…

Customer Highlight

Ero Copper’s installation of a 2300 kW vertical stirred HIGmill™ from STM at Caraiba copper mine in Brazil leads to an average increased plant recovery of 4.5% across a wide range of copper grades.