#grindingmedia

By Ato Asefoah Dadzie

It’s not the most glamorous part of mining operations—but ask any metallurgist or plant manager and they’ll tell you: grinding media matters. These unassuming balls of steel, ceramic, or other alloys are essential to breaking down ore, improving recovery rates, and keeping the entire extraction process efficient. The quality of your grinding media can make or break your throughput. Literally.

At JOBEX COMPANY LTD in Ghana, we’ve spent years refining our approach to sourcing grinding media. And if there’s one lesson we’ve learned, it’s this: not all grinding media are created equal.

There’s a big difference between buying “cheap steel balls” and procuring ISO-certified media that have been engineered, tested, and produced to meet the demands of your mill. We’ve had clients who initially opted for the cheapest quote—only to find their liners wearing out faster, their recovery rates dipping, and their downtime increasing.

So let’s talk about how we do it—and why we take it so seriously.

It starts with understanding the client’s need. Not every operation requires the same specs. What’s the ore hardness? The mill diameter? Wet or dry grinding? High-chrome or forged steel? These questions shape our sourcing strategy. You can’t just pick grinding balls off a shelf—well, you can, but it won’t end well.

Once we know the specs, we tap into our vetted international supplier network. And I mean vetted. We’ve rejected manufacturers after failed audits, visited factories ourselves, and conducted third-party lab testing to confirm claimed specifications. Because on paper, everyone says they meet ISO standards. But paper doesn’t grind ore—products do.

For us, ISO certification isn’t just a badge. It’s a guarantee of consistency. It means the producer has proper quality management systems, traceability, and repeatability in manufacturing. It means the hardness range is where it should be, the microstructure is right, and the breakage rate is within acceptable limits.

Take a recent delivery we coordinated for a gold mine near Obuasi. They needed high-chrome media, 40mm and 60mm, in bulk quantities. The first batch was airfreighted to meet an urgent deadline. The rest arrived in staggered shipments via sea freight. We worked closely with customs, tracked every container, and had quality samples tested on arrival. The feedback? “Best performance we’ve seen in two years.”

That didn’t happen by chance. It happened because we cared—because grinding media isn’t just a line item for us. It’s a performance enabler.

And yes, sometimes, we run into obstacles. One of our most reliable manufacturers once faced port delays due to regional unrest. We had to quickly pivot—reroute shipments, adjust inventory plans, keep the client in the loop. That’s the human side of sourcing. It’s not just contracts—it’s relationships, adaptability, and trust.

Some clients ask, “Why not just buy locally?” And sometimes we do, when the quality and volumes align. But when specific metallurgy, production standards, and long-term consistency are required, international sourcing becomes the better choice. The trick is knowing when—and from whom.

That blend of discernment and discipline is something we’ve built over time at JOBEX COMPANY LTD. And I believe it’s part of what earned us a nomination for the 2025 Go Global Awards, hosted by the International Trade Council this November in London. It’s more than just an event. It’s a meeting point for businesses across industries who’ve chosen to do things properly, even when it’s harder. A place to build alliances, exchange ideas, and move forward together in a rapidly shifting global economy.

We’re proud to represent Ghana there—not because we claim perfection, but because we believe in accountability. Whether it’s grinding media or any other supply chain element, we show up, we dig deep, and we stand by our work.

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