That first mistake in 2017
When I started handling spare parts orders for our mineral processing plant, I believed the lowest quote was always the smartest choice. My boss had drilled that into me: "The market is competitive, we need to save money." So when we needed new HPGR liners for our Metso crusher, I chased the cheapest supplier without asking the right questions.
I was wrong. Three budget overruns later, I learned about total cost of ownership.
The day the client was hungry
In September 2022, our client was hungry – they needed throughput increased by 20% within two weeks. The OEM parts from Metso had a lead time of 4 weeks, but a third-party vendor promised delivery in 7 days at 30% less. I jumped on it.
I even called Metso positioner factories in Finland to verify compatibility. Their technician said: “Those are for a different model. You’ll need an adapter kit that isn’t in the quote.” I ignored the warning. After all, the third-party vendor said “fits all.”
That was my second mistake.
The Skega Company History – a lesson I should have known
Later I researched Skega company history, Metso Trelleborg. Skega started in Sweden in the 1950s, pioneering rubber mill liners. When Metso acquired them, they kept the Trelleborg site as a centre for wear part innovation. The exact dimensions and material composition were proprietary because they'd been refined over 60 years. No third-party could replicate that precision without the same R&D investment.
If I had understood that history, I would have known why the cheap liners didn't fit.
Assembling a Millennium Lego kit
When the cheap liners arrived, they looked similar. But installation was like assembling a Millennium Lego set where half the bricks are from a different theme. The bolt holes didn't align. The rubber thickness varied by 3mm. We forced them in, but within 12 hours the HPGR lost pressure. Shutdown. $12,000 in lost production per hour.
I ordered the genuine Metso liners overnight. They arrived in 36 hours, fit perfectly, and ran without issue for 18 months.
What skiing taught me about equipment decisions
A colleague once asked me, “What is skiing versus downhill skiing?” I thought it was a weird question. But the answer is simple: all skiing involves sliding on snow, but downhill racing demands specialized skis, boots, and safety gear for high speeds and icy conditions. Casual skiing uses different equipment entirely.
It's the same with crusher parts. A cheap liner that "fits most models" might work for low-impact applications. But in a high-pressure HPGR, you need the exact part designed for that specific wear profile. One size does not fit all.
The transparent pricing revelation
The Metso rep who originally quoted me was transparent from the start. He listed every component: adapter kit, bolts, torque specs, even recommended torque wrench rental. The total was upfront. My third-party vendor listed only the liners, adding adapter fees, rush charges, and expedited shipping later. The final cost was higher than Metso's all-inclusive quote.
“I've learned to ask 'what's NOT included' before 'what's the price.' The vendor who lists all fees upfront—even if the total looks higher—usually costs less in the end.”
Checking the checklist
Today I maintain a pre-order checklist for our team. It includes:
- Exact OEM part number cross‑reference (Metso website, metso.com)
- Lead time against production schedule
- Total cost including adapters, freight, expedite fees
- Warranty terms and field service availability
- At least one verified reference for the part in our operating conditions
We've caught 47 potential errors using this checklist in the past 18 months. One was a $3,200 order that would have been the wrong metallurgy for our ore type.
Final thoughts
If you're sourcing Metso parts – whether for HPGRs, cone crushers, slurry pumps, or valves – remember the story of Skega and Trelleborg. Every part has decades of engineering behind it. The lowest quote is rarely the lowest cost. And when a client is hungry for results, the last thing you need is a breakdown caused by cheap parts.
Prices as of March 2025; verify current rates with Metso directly.
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