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IsaMill™ Gets Lean With Smaller Design and New M7500

30 January 2020

As part of a dramatic cost reduction strategy and filling a gap in their range, Glencore Technology have taken the successful IsaMill™ fine grinding mill and introduced two significant changes.

First, it’s been redesigned to reduce civil infrastructure costs up to 28%.  And second, a new 1600-2200 kW ‘M7500’ has been introduced to sit between the M5000 and the M10000.

The two changes are intended to achieve significant savings for clients and meet a gap in Glencore Technology’s popular IsaMill™  range.

Engineering Manager, Nick van Heerden, said the smaller plant configuration has been achieved by lowering the IsaMill™ by between 2 meters for an M3000/M5000 and 3 meters for an M10000.

“Several changes incrementally saved 22-28% of costs to the client through a reduction in steel and concrete.”

For example, the media hopper was moved from under the IsaMill™ to the side.  Due to the backpressure created from the rotor, it was possible to utilize this to pump media out of the IsaMill™ during its maintenance shutdown sequence rather than drop it to the hopper below.

And tying the gland and IsaCharger waters directly into the plant water eliminated the need for a separate tanks and their corresponding additional pumps.

The new design means that the required mill-and-access footprints of equivalently specified IsaMill and HIG mills are the same, while the IsaMill is roughly a third the height of the HIG mill.

Technology Lead, Mike Hourn, said the new M7500 was a significant win for operations needing 1600-2200 kW of power but wanting the availability, safety and product consistency of an IsaMill.

“These are huge wins for operations and for engineering firms wanting to specify the best fit.  We’ve already installed the smaller configuration in Minsur and Woodlawn.  But the new M7500 mill has only just been made available now.  And like all our IsaMills, the M7500 is guaranteed to scale-up with 100% accuracy.  We certainly look forward to installing our first.”


For further information:

Stephen Johnson
m: +61 403 159 477

Notes to editors


Glencore is one of the world’s largest global diversified natural resource companies and a major producer and marketer of more than 90 commodities. The Group's operations comprise around 150 mining and metallurgical sites, oil production assets and agricultural facilities. With a strong footprint in both established and emerging regions for natural resources, Glencore's industrial and marketing activities are supported by a global network of more than 90 offices located in over 50 countries.

Glencore's customers are industrial consumers, such as those in the automotive, steel, power generation, oil and food processing sectors. We also provide financing, logistics and other services to producers and consumers of commodities. Glencore's companies employ around 146,000 people, including contractors.

Glencore is proud to be a member of the Voluntary Principles on Security and Human Rights and the International Council on Mining and Metals. We are an active participant in the Extractive Industries Transparency Initiative.

Glencore Technology

Glencore Technology develops innovative products that help mining operations extract more from their flowsheet.  ISASMELT™, IsaKidd™, IsaMill™, Jameson Cell and Albion Process™ have been developed in the real world and proven in more than 500 operations across every continent.

Many of our technologies have been developed and proven at our own sites, like ISASMELT™ and IsaMill™, which were pioneered by Mount Isa Mines and helped revolutionise mining and smelting processes all over the world.

Our approach is premised on a technology partnership to provide a full product and service offering, including process flow design, engineering, equipment supply, commissioning and operational expertise, and ongoing process and maintenance support.