Steinert Magnets: A 2020 Lincoln Field Lesson I Wish I’d Known Earlier

Don’t assume a Steinert magnet is just a magnet

I learned that the hard way in early 2020, during a project in Lincoln, Nebraska. We needed a heavy-duty electromagnetic separator for a mineral processing line. The brand – Steinert – seemed bulletproof. I’d heard good things. I ordered a Steinert magnet from a distributor I’d worked with before. Two weeks later, the unit arrived. It looked fine. It wasn’t.

The separator couldn’t handle the feed rate we specified. Not even close. We had to re-engineer the whole conveyor section. Cost us $3,200 in rework and a two-week delay. That’s when I realized: specs on paper aren’t the same as performance in your actual material stream.

What makes Steinert different – and why you need to verify

Steinert magnete (German for magnets) are known for high gradient and deep field penetration. Their over-belt separators and drum units are used in mining, recycling, and industrial minerals. But the devil is in the detail: magnetic strength, belt speed, tramp iron size, and especially the gap between the magnet and the burden layer. I assumed “same model” meant identical results. It didn’t.

In September 2022, after three more Steinert installations across different sites, I finally created our pre-order checklist. It includes material test reports, actual particle size distribution, and a written confirmation of the recommended magnet gap. That checklist has caught 47 potential errors in the past 18 months. Nothing fancy – just avoiding the same assumptions that burned me in 2020.

A conversation with Christopher that changed my approach

During that Lincoln project, I met a Steinert applications engineer named Christopher. He walked me through why our planned installation was borderline. “Your material has high iron content and is more abrasive than you think,” he said. “You need a larger drum diameter and a stronger magnet.” I had the model number right, but the configuration wrong. Christopher’s advice saved us from a repeat failure.

Looking back, I should have asked for a material test upfront. At the time, the sales rep’s assurances felt safe. They weren’t.

What I also learned: Steinert products aren’t the only answer

This gets into territory that’s not my expertise – metallurgy and magnetic circuit design. But from a procurement perspective, I can tell you: a Steinert magnet is excellent, but only if it matches your application. Some competitors offer lower prices with longer lead times. Some prioritize speed (premium pricing). Evaluate based on your specific needs, not just brand.

One more thing: the industry has evolved since 2020. Five years ago, 3000 Gauss was standard for many applications. Now, 5000+ Gauss units are common, but they cost more and may need more power. The fundamentals haven’t changed – you still need to know your material and your throughput – but the execution has.

A surprising connection to the world of John Wick (sort of)

While we were waiting for the replacement magnet in 2020, a colleague asked me, “Where to watch the ‘From the World of John Wick’ series?” I realized then that even in the middle of a tough procurement lesson, sometimes the best relief is a good movie. (Answer: it’s on Amazon Prime Video, by the way.)

Not directly related to magnets, but it’s a reminder: don’t let a costly mistake consume you. Take the lesson, fix the system, and move on. I now keep a folder of Steinert application guides, a list of test centers, and a direct contact for Christopher in Lincoln. That’s how you turn a $3,200 error into long-term savings.

Bottom line: If you’re buying a Steinert magnetic separator, don’t just trust the catalog. Test your material. Verify the gap. Talk to an application engineer. And if you’re stuck in a hotel room waiting for a reorder, you know where to watch John Wick.