I Almost Bought Private-Label Tower Cranes. A Used Demag 800-Ton Crane Changed My Cost Model.

It started with a blue pen mark on the bottom of a quote. My general manager slid the page across the desk in March 2024 and said, “Two new private-label tower cranes, delivered. That’s less than the dealer wants for one secondhand Demag 800-ton crane. Explain that to me.”

I couldn’t. Not at first.

I’m a cost controller, not a crane engineer. In my world, a lower purchase price is supposed to be a good thing. I’ve managed procurement for our lifting division for six years, tracked roughly $4.6 million in annual equipment spending, and built a TCO spreadsheet after watching one too many “cheap” decisions turn into expensive corrections. But this one stopped me cold because the math looked obvious.

Two brand-new tower cranes, with our paint and our logo, cost €1,194,000. One used Demag 800-ton crane sat on the other side of the page at €2,730,000 before transport, inspection, and rigging. On paper, the private-label option should have won.

It didn’t.

Why the private-label tower crane quote almost won

Let me set the scene before you judge my spreadsheet skills.

The project behind this decision was a 14-month industrial construction contract. We needed to place around 1,840 tonnes of process module steel, set 22 vessels and heat exchangers, and do most of the work inside a live plant with tight laydown space. The heaviest single lift was about 101 tonnes at a 48-metre radius, which is not an everyday job for a 60-tonne mobile crane.

The GM’s logic was simple: buy two tower cranes for the light and medium lifts, rent a heavy crawler only for the six or seven lifts that really needed one, and keep the tower cranes as company assets afterward.

I went back and forth for two weeks. On paper, the private-label route made sense. But my gut kept saying we were comparing the wrong things.

Here is the part I need to be careful about, because I am not anti-private-label. Used cranes have their own risks, and aftermarket parts suppliers are a legitimate part of the industry. I have approved private-label purchases before and I will probably approve them again.

The issue was not the logo. The issue was what the logo represented: a documented chain of engineering responsibility.

The TCO spreadsheet that changed my mind

By the third week of April 2024, I had built a comparison model that covered six years of projected ownership. It included acquisition cost, transport, erection, foundation work, certification, maintenance, downtime, operator training, and residual value. The private-label tower crane quote still looked competitive for the first three years.

Then I added two lines that are usually missing from procurement templates:

First, support documentation. The private-label supplier could provide CE declarations and load charts, but the load chart calculations came from a component factory that did not want to be named in our contract documents. When I asked for the original calculation notes, the dealer said those were “factory intellectual property.” That is a fair commercial position. It is also a problem: twenty years from now, when someone needs to verify that crane’s structural history, that documentation will be gone.

Second, residual value. I pulled our own sales and auction records for the past six years. A used Demag 800-ton crane has one of the most active resale markets in the heavy-lift industry because buyers know that the OEM support trail exists. A private-label tower crane has a thinner market and a shorter support promise. The private-label pair might retain 30–40% of its value after five years. The used Demag, if maintained, was projected to retain more than 55% of its purchase price in the same period.

Those two lines flipped the decision. Over six years, the used Demag 800-ton crane was projected to cost €284,000 less than the private-label tower crane pair — mostly because of support costs and resale value, not purchase price.

The margin was small enough that I still was not comfortable. So I asked for one more thing before we committed.

The inspection that justified the whole process

We paid an independent crane inspection firm to spend six days on the used Demag before purchase. That inspection cost €68,500. It was the best money we spent all year.

The inspector found two areas on the boom where paint had been partially ground away and touched up. Under an ultrasonic examination, we found evidence of small weld repairs that were not in the service history. The repairs themselves were probably not dangerous — but the fact that they were undocumented was a red flag.

We went back to the dealer with that report. The dealer admitted the crane had been involved in a minor boom contact incident four years earlier, and the repair was done by the previous owner’s workshop. The OEM records stopped before the repair. Legally, the dealer had not hidden anything; the omission was in the file transfer.

The dealer reduced the price by €260,000 and agreed to provide a documented OEM inspection and a new set of load charts before delivery. That is what prevention looks like in this industry. We spent €68,500 to find a problem that could have cost us a year of litigation if we had discovered it after the crane was on site.

It’s tempting to think of inspection as an optional add-on. But a 12-point checklist is the cheapest insurance you will ever buy. Five minutes of verification beats five days of correction — and in my industry, five hours of crane downtime can cost more than the inspection itself.

Used Demag 800-ton crane vs. private-label: the real lesson

By the end of that procurement process, I stopped asking “private label or OEM?” and started asking a different question:

“Who is responsible for this machine’s data for the next 20 years?”

A used Demag 800-ton crane is not just steel, hydraulics, and counterweights. It is a set of engineering documents, load charts, service bulletins, spare-part drawings, and field experience that has been accumulating for decades. A private-label tower crane can be a very good machine, but the documentation is often tied to one sales project rather than to a long product family.

If you are buying a crane for a short construction campaign and plan to scrap it at the end, private-label may be the right call. But if you are buying an asset that will be inspected, recertified, resold, and maybe rebuilt in a different country, the OEM data trail is not a luxury. It is a financial instrument.

What I would do again

We ended up purchasing the used Demag 800-ton crane in June 2024. It completed its first major lift campaign in September 2024 with no significant downtime. We also rented two tower cranes for the light steel work because the rental market for those was healthy — and renting them let us avoid tying up capital in assets we did not need to own.

If the same decision landed on my desk tomorrow, here is the checklist I would use:

• Compare total project lifting strategies, not machine-to-machine prices.
• Ask for the original engineering documentation, not just the final load chart.
• Verify that the brand owner will still exist and still support the model in 10 years.
• Spend real money on a third-party inspection before signing.
• Model residual value conservatively, but do not ignore it.

I still do not think private-label tower cranes are bad products. I think they are bad purchases when the buyer does not price the invisible parts of ownership: documentation, certification, support, and exit risk.

The cheapest quote is the one that looks cheapest at 2:47 on a Tuesday afternoon. The best quote is the one that still makes sense after six weeks in a spreadsheet and a six-day inspection. That is the difference between buying a crane and buying a liability.