Comminution 2023

Attend our exclusive IsaMill™ workshop, only at Comminution 2023!

Hosted in Cape Town, South Africa, Comminution is one of the many highly acclaimed MEI conferences and we are proud sponsors of this year's event.

During Comminution 2023, we will be hosting an exclusive workshop, "IsaMill™ – Operation, Optimisation, and Latest Developments", on Sunday 16th April. Join us for intriguing conversation about our IsaMill™ technology while enjoying light refreshments afterwards. 

Throughout the conference, you can find South African Director of Sales, Cedric Walstra, and IsaMill™ Principal Metallurgist, Hans De Waal, at booth #7.

Hans will also present "Stirred Circuit Design: Open Circuit or Closed Circuit?" on Thursday 20th April from 4:20pm. Download the abstract here, and don't forget to fill out our contact form if you have any questions for our Comminution 2023 team.




IsaMill™ – Operation, Optimisation and Latest Developments

Day: Sunday, 16th April
Time: 16:00 - 17:30 hrs
Location: Vineyard Hotel

Language: English

This year at Comminution we are offering this exclusive workshop, "IsaMill™ – Operation, Optimisation and Latest Developments", an introduction to the IsaMill™ and knowledge sharing of the latest developments of our IsaMill™ technology.

Presenter Hans De Waal will discuss the various operating principles of operation of an IsaMill™, troubleshooting and optimisation techniques.

Hans will also detail new IsaMill™ developments, various duties the IsaMill™ can be applied to and the future of IsaMill™ in operational flowsheets.

There will also be canapes and light refreshments after, so book today to secure your spot!

Technical Presentation
Stirred Circuit Design: Open Circuit or Closed Circuit?

Day: Thursday, 20th April
Time: 16:20pm - 16:40pm

Language: English

As ore body grades decline, the demand for finer liberation requirements is driven higher. That means greater demand for closed circuits within the stirred milling process.

This paper aims to explain how the IsaMill™ measures up against similar technologies and current industry trends.

Authors: Hans De Waal, Ion Gurnett & Glenn Stieper

Our Comminution 2023 Team
Hans De Waal

Principal Metallurgist - IsaMill™

About Hans

Hans de Waal has 27 years' experience working in the mineral processing industry.

He earned 11 years of experience in the platinum industry, working on numerous concentrator operations for Anglo Platinum in technical and production management disciplines.

Hans joined Glencore Technology in 2008, and he is currently a Principal Metallurgist, providing consulting services to the minerals processing industry on fine grinding and flotation solutions. He also supports the technical development of IsaMill™ Fine Grinding Technology.

Cedric Walstra

Director of Sales - South Africa

About Cedric

Cedric has worked with Glencore Technology as Director of Sales – South Africa, since 2006.

He has over 35 years of experience in the mining industry, most of it within the supply and client support sector focusing on Mineral Processing Equipment. Cedric is passionate about customer relations.

Cedric holds an NHD in Extractive Metallurgy from Wits Technikon and is a qualified Aircraft Electrician.

In his spare time, Cedric enjoys spending time with his family, as well as walking and reading.

IsaMill™ eBrochure
Use our IsaMill™ calculator to estimate your needs
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Our Technologies
Fine Grinding

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


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.


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.