IsaMill is the most efficient stirred grinding mill for secondary and tertiary milling in mining. It readily processes feeds of up to 850 microns and produces a product size as small as 4 microns. It also delivers the most consistent particle size distribution.

IsaMill has the smallest total footprint, and with more than 161 installations around the world, it is a proven performer. Find out more by filling out our form. You can also download our brochure or try our free online calculator to find out which IsaMill size is best for your operation.

How IsaMill works

The IsaMill is horizontal, so, unlike a vertical grinding mill, its product discharge is benefited by gravity. This avoids short circuits, allows starting under load and maximises availability. IsaMill is the only horizontal tertiary grinding mill in the world. 

It’s safe and easy to maintain.

Because of it's horizontal design, it's safe and easy to maintain - just slide it open! It’s innovative design means it's about a third the height and weight of some other grinding mills.

More power than other grinding mills 

The IsaMill is incredibly efficient and intense. With 8 grinding discs, evenly distributed energy, superior grinding media and a centrifugal grinding flow, it can have much more power than equivalent ball or vertical mills. IsaMill requires less residence time, so there's less wasteful regrinding, which allows the IsaMill to be more energy-efficient and cost-effective.

More consistent product size 

IsaMill creates a more consistent product size because of the staged grinding process and horizontal layout. This means the product is more consistent and doesn’t need re-processing

100% Accurate estimates and scale-up

When we model and scale up your IsaMill from sample tests, we’ll be able to assure you of product size or energy efficiency written into a performance guarantee. It means you avoid flowsheet fails. What you were shown is what you’ll get in the real world.

Here’s the table of your IsaMill options.