Crane Sourcing Checklist: 9 Steps From Spec Sheet to Signed PO

I'm a procurement manager at a 140-person industrial contracting and plant services company. I've run our equipment and capital spend budget — $2.6M a year, give or take — for the last 8 years, negotiated with 40-plus vendors, and logged every order in our cost tracking system. Over that stretch I've signed off on maybe 35 crane purchases and long-term rentals. Could be 40, I'd have to check the PO log.

This checklist is for buyers who have to source a crane: a Tadano all-terrain for a turnaround, an overhead bridge crane for a new bay, or a truck-mounted unit for utility work. Nine steps, in the order I actually run them.

What you need before you start: the heaviest lift envelope, a site plan with ground conditions, your duty cycle numbers, and a blank TCO sheet. If you don't have those four things, you're not ready to talk to a salesperson yet.

Step 1 — Define the lift duty, not the machine category

Plenty of buyers start by typing 'overhead crane manufacturer' into a search box when what they actually need is a mobile crane. These aren't interchangeable, and their spec sheets don't compare.

An overhead crane lives in one bay. It handles repetitive lifts, high cycle counts, and doesn't need road permits. A mobile crane goes where the load is — but you're now managing axle loads, travel routes, outrigger positions, and a ground bearing check at every new location.

Here's the part that trips people up: the machine you need is sized by the critical lift, not the heaviest one. The critical lift is the one with the smallest margin at the radius and height you actually need. I've watched a project get quoted on a 400-ton lift that turned out to be easy, while the 90-ton lift at 28 meters was the one that dictated the whole machine class.

Step 2 — Read the load chart, not the badge

Take a 110-ton Tadano all-terrain. That 110 is the rating at the shortest working radius, full counterweight, outriggers fully extended, on a firm and level surface. Walk it out to a longer radius with a shorter boom and reduced counterweight, and you might be looking at a fraction of that number.

The Tadano 110-ton crane load chart is published in separate configurations — full counterweight versus partial, full outrigger span versus half or asymmetric, and different boom lengths. If you're comparing that chart against another 110-ton chart, compare at the same radius, same boom length, same counterweight, same outrigger condition. Otherwise you're comparing marketing numbers, not lifting capacity.

In the U.S., mobile crane ratings follow ASME B30.5. Those ratings already carry the required stability margin baked in. Don't stack your own arbitrary de-rate on top of the published chart unless you have a site-specific reason and someone qualified to sign off on it.

Step 3 — For overhead cranes, spec span, height, and duty class

Overhead cranes get specified by span, hook height, capacity, and duty class. Tonnage alone tells you almost nothing. Under CMAA Specification 70 and 74, cranes are grouped into service classes A through F. A Class A crane is standby or infrequent use. Class D and above is continuous, high-cycle production work. Specify a Class A hoist into a Class D application and you'll be rebuilding it years ahead of schedule.

OSHA 1910.179 covers the general industry requirements for overhead and gantry cranes — rated load marking, inspections, testing. ASME B30.2 is the consensus standard for the hardware itself. When you're reviewing an overhead crane specification guide from a manufacturer, check that those two documents are named in it. If they aren't, ask why.

Step 4 — Run the site reality check

This is the step people skip, and it's the one that kills projects.

For mobile: ground bearing pressure under each outrigger float, with and without mats. Asphalt in July is not the same as asphalt in January. Then the travel route — axle loads, bridge clearances, permits, and whether the machine can actually get from the gate to the lift point without disassembly.

For overhead: runway beam condition, column capacity, hook approach dimensions, headroom under the roof structure, and where the power feed lands. I've seen a crane package get re-engineered after the fact because the building columns weren't rated for the runway loads the vendor assumed. That change order was $19,000 and six weeks.

Step 5 — New, used, or lease: run the TCO

As a rough reference from public listings in early 2025: a new 100-ton-class all-terrain typically lists in the $800K–$1.4M range depending on boom length and options. A used 100–110-ton unit from the 2008–2014 window often shows up between $250K and $500K, and condition varies wildly at the low end. For overhead, a 5-ton single-girder package with a 20-meter span usually lands around $25K–$60K installed; a 20-ton double-girder in a higher duty class runs $120K–$300K installed. Verify those against current quotes — and never compare a delivered, commissioned price against a bare machine price.

Then build the TCO column, not the purchase column: financing, insurance, inspections, operator certification, tires and undercarriage for mobile units, runway and hoist maintenance for overhead, and resale value at year five.

I went back and forth between a used 90-ton unit from a broker and a new-machine lease for about three weeks. The used unit was 22% cheaper on paper. The lease won because the used machine's inspection history was thin and its parts support was three years from the end of the model run. Reliability over savings, in that case.

Step 6 — Verify parts and service before you sign

The thinking that OEM parts are always slower and more expensive comes from an era when dealers stocked nothing and every order was a special release. That's changed. Today it depends almost entirely on the specific dealer's stocking program and whether the model is still in production.

So ask for part numbers and quoted lead times on the ten components you're most likely to need — hydraulic pumps, cylinders, wire rope, brake assemblies, control boards. Ask when the model's parts support ends. Ask how far the nearest certified technician is and what their response time commitment is, in writing.

Do this before the PO, not after the first breakdown. A machine with a two-day parts lead time and a machine with a twelve-day lead time can look identical on a spec sheet.

Step 7 — Put delivery certainty in writing, and pay for it if you have to

In Q3 2024, we paid roughly $3,400 more to lock a guaranteed delivery window on a boom component. The alternative was missing a shutdown window we'd valued at about $65,000 in lost production. That wasn't a hard call.

Rush fees buy certainty, not just speed. Anyone can promise Thursday. What matters is what happens if Thursday doesn't happen — a credit, a penalty clause, a replacement unit, something with a number attached to it. Take it from someone who's been burned twice by 'probably on time' language from a cheaper vendor: the uncertain cheap option is usually the more expensive one. If you've ever had a crew standing around at 6 a.m. waiting on a machine that's still four hours out, you know that feeling.

Step 8 — Get the compliance paperwork up front

For mobile cranes: ASME B30.5 compliance documentation, current inspection records, load test certificates, and operator certification under OSHA 1926.1427 if it's construction work. If you're buying into the EU market, EN 13000 applies.

For overhead: OSHA 1910.179 requires rated load marking and periodic inspection; ASME B30.2 governs the equipment. Ask for the load test certificate and the wire rope and hook inspection history before delivery, not after.

Also confirm the operator and rigger qualification requirements on your side. Buying a compliant crane and staffing it with uncertified operators is a citation waiting to happen.

Step 9 — Lock the post-delivery terms

The last step is the one that determines whether the machine actually earns its keep. Confirm commissioning support, operator and rigger training hours, warranty start date, PM schedule, and the spare parts kit included in the deal.

Watch the warranty start date specifically. Some vendors start it at shipment, some at delivery, some at commissioning. If your machine sits for six weeks before it's installed, that difference can eat a meaningful chunk of your coverage.

Common mistakes that cost the most

• Sizing off the badge number instead of the load chart at your actual radius and configuration.
• Comparing quotes on purchase price alone, with no TCO column.
• Skipping the ground bearing or runway structure check because the photos looked fine.
• Not asking for parts lead times until something breaks.
• Accepting a delivery promise with no remedy attached to it.
• Letting the warranty start date default to shipment when your install date is weeks out.

Run the nine steps in order and most of the surprises disappear. The ones that don't, you'll at least see coming.