Fine Grinding






technical papers



​IsaMill™ uses horizontal milling to secure better energy efficiency, product size and availability.

The IsaMill™ has real-world success in 129 metalliferous installations across 21 countries.

It’s the world’s only horizontal fine-grinding mill, so it avoids short-circuits, is highly efficient and gives the highest availability.

IsaMill™ has 100% accurate scale-up and is proven consistently.

It’s easier to maintain has no height safety issues and slides open in minutes.

It produces a steep particle size distribution without needing internal screens or closed circuit cyclones. The horizontal plug-flow design prevents short circuiting and provides for a reliable and easy to operate technology.

And it delivers better results downstream to flotation and leaching performance.

In short, IsaMill™ reduces the energy cost, media cost and capital cost of fine-grinding.

The IsaMill™ is used extensively in base metals, PGM, gold processing and magnetite grinding applications.  And the power capacity of an IsaMill ranges from 75kW to 3.8mW.

IsaMill™ is the real-world specification of choice in: 

  • Mainstream Grinding
  • Concentrates Regrinding 
  • Ultrafine Grinding
Other Technologies

Jameson Cell flotation gives you more concentrate per dollar, per metre and per year.


Albion Process™ leaches the broadest feed variations, costs less and ramps-up faster.

Gas Sparging

HyperSparge™ delivers more gas, with more availability for leaching and oxidation processes.

Slurry Storage

ZipaTank™ uses modular components to deliver a tank with reduced installation times and greater flexibility.


ISASMELT™ deliver clean, cost-effective and high intensity smelting for the real world.

Cathode plates & Equipment

ISAKIDD™ delivers the best fit for purpose electrowinning and electrorefining in the real world.