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Dry Mining Unit (DMU)

HAILWA – THE DRY MINING UNIT TRANSFORMING COASTAL MINING

The DMU plant in operation, replacing conventional stripping methods to efficiently remove overburden sand and create mineable land.

At Namdeb, innovation is more than developing new technology. It is about empowering our people to solve today’s challenges while preparing for tomorrow. Mining along Namibia’s coastline presents unique challenges, but our people remain committed to improving how we operate. Through safer methods, smarter technologies, and more efficient processes, we are protecting both our operations and our future. This commitment to innovation keeps Namdeb moving forward.

As mining progresses westward, stripping activities become increasingly complex. Ore deposits lie deeper beneath the seabed, requiring the movement of larger volumes of sand, management of higher mining faces, increased water seepage into mining cuts and additional boulders to reinforce the seawall. These evolving conditions demand innovative solutions that improve both productivity and safety. This is where the Dry Mining Unit (DMU) comes in.

HOW THE DRY MINING UNIT WORKS

The Dry Mining Unit (DMU) operates through a simple and continuous process. Dozers push sand into the unit, where grizzly bars remove oversized rocks. The remaining material is transferred by conveyor onto a screening system. Material too large for slurrying is separated and collected for seawall reinforcement, while finer sand is mixed with water to create slurry that is pumped over the seawall for accretion.

This innovative process reduces operational complexity while supporting safer and more efficient mining practices.

Material is pushed into the DMU by D11 dozers, Caterpillar’s largest and most powerful bulldozers. Fitted with semi-universal blades, they can move up to 27.2 cubic metres of material in a single push.

INNOVATION WITH EMPLOYEE OWNERSHIP

Iyaloo Moses is a Mine Overseer at Namdeb. She oversees the Loading and Hauling process. Iyaloo submitted the winning name in the Employee DMU Naming Competition.

The Dry Mining Unit is an innovation embraced by the people who bring it to life. To reinforce employee ownership and celebrate the collaborative spirit behind the project, Namdeb invited employees across the business to name the innovation through a company-wide naming competition. Following enthusiastic participation and employee voting, the winning name became Hailwa, a name submitted by Iyaloo Moses, one of our Mine Overseers, the name symbolises victory and reflects on the determination, ingenuity and resilience that made the project a reality.

At Namdeb, we continue to strengthen the connection between our people and our technological advancements. The Dry Mining Unit demonstrates how innovation, collaboration and responsible mining work together to create lasting value. It strengthens Namdeb’s operations today while supporting sustainable mining for future generations.

Riaan Burger, Namdeb Chief Executive Officer

Hear from our CEO, Riaan Burger, as he explains how the Dry Mining Unit is transforming Namdeb’s coastal mining operations.