If you're reading this, you're probably looking at Potain tower cranes—whether for sale or rent. Good choice. But here's the reality: after 7 years of handling equipment procurement (and making enough mistakes to fund a small fleet), I've learned that the difference between a smooth crane acquisition and a $50,000 headache comes down to a checklist.
This guide is for contractors, rental companies, and project managers who need to buy or rent Potain cranes (models like the MDLT 1109, MCT 85, or MR 415) without the typical pitfalls. Specifically, this covers the 7 steps I now use to vet every crane order—steps I wish I'd had back in 2017.
Step 1: Match the Crane to the Jobsite (Not Just the Brochure)
I assume the crane specs on paper will fit the site. Didn't verify. Turned out our MD 1100 luffing jib—which looked perfect on the data sheet—couldn't clear a 30-year-old steel beam on the client's roof. That was June 2022.
What I do now:
- Check physical site constraints: Measure clearance, foundation load capacity, and swing radius (not just the spec sheet values).
- Verify hoist speed for your tallest lift: A crane built for high-rise might be overkill—and costly—for a 4-story project.
- Match the capacity curve to your heaviest lift: Don't just look at max capacity (at minimum radius); verify it at your actual working radius.
Honestly, the MDLT 1109 is a monster for certain projects. But I've seen people rent it for jobs where a smaller MDT 809 would've been just fine—and saved $3,200 a month in rental fees (based on market rates as of Q4 2024).
Step 2: Inspect the Machine's Actual Condition (Not the Paint Job)
In my first year (2017), I bought a “well-maintained” used Potain based on photos. The paint was shiny. The frame? Cracked. The error only showed up after the first load test. Cost: $4,500 in repairs plus a 4-week delay.
Current checklist:
- Check the service history (not just the hours meter): A crane with 8,000 hours but no major repair log is riskier than one with 10,000 hours and full records.
- Inspect the jib and tower sections for cracks: Particularly near weld joints. (Note to self: always bring a dye-pen test kit on site visits.)
- Test the slewing ring for play: Excessive movement means replacement costs of $8,000–$12,000 (as of early 2024 quotes).
I don't have hard data on industry-wide defect rates, but based on our team's 47 inspections over 18 months, roughly 15% of used cranes had hidden structural issues that weren't disclosed. That alone justifies the trip.
Step 3: Verify the Dealer's Parts & Service Network
Potain has a solid dealer network—but it's not equally strong everywhere. I learned never to assume every region has same-day parts availability.
Key checks:
- Ask for lead times on critical spares: Motors, control boards, and safety components (hoist limit switches, load moment indicators).
- Check if the dealer has a service technician within 4 hours of your site. A 2023 failure cost us $890 in service call fees plus 2 days of downtime because the nearest tech was 7 hours away.
- Verify warranty terms for rented equipment. Some rental companies charge you for downtime even if the crane is under warranty. (This is accurate as of January 2025; verify your contract.)
Step 4: Compare the Fine Print (Rentals vs. Purchase Costs)
Here's the thing most people get wrong: the quoted price is rarely the final price. I once compared two rental quotes for a Potain MD 1100. Same weekly rate. But one had a 12% “mobilization fee” buried in the terms (ugh).
Crunch the numbers:
- Check for hidden fees: Freight, insurance, securing equipment, “environmental” surcharges.
- Compare total cost of ownership (TCO) if buying: Factor in freight, foundation construction, operator training, insurance, and maintenance over 3 years.
- Ask about buy-out options on rentals: Some rental companies will let you apply a portion of rental fees toward purchase—but only if you negotiate it upfront.
The vendor failure in March 2023 changed how I think about backup planning. We'd locked in a rental deal that looked “cheaper,” but when the crane failed on day 3, the hidden costs erased our savings.
Step 5: Verify the Crane's Compliance & Paperwork
This is the boring part that gets skipped. It's also the one that can get your project shut down.
Don't assume paperwork is in order. Verify:
- Load test certificates (current within 12 months). Some dealers will claim “overhauled” but the certificate is 2 years old.
- CE or ASME compliance (depending on your region). A crane imported from one market may not meet local safety standards for your jurisdiction.
- Operator training documentation. Especially for newer Potain models with computerized controls—the manual is complex, and training matters (Source: Potain technical documentation).
The regulatory information here is for general guidance only. Consult official sources for current requirements in your region.
Step 6: Check the Rental/Purchase Timeline & Weather Window
I assumed delivery would be “2 to 3 weeks” based on the sales call. Didn't factor in: customs delays, trucking availability, and a snowstorm. The crane arrived 6 weeks late.
Actions:
- Get a written, guaranteed delivery date (with penalty clauses for rentals).
- Build in a 2-week weather buffer. Especially for northern projects with limited crane erection windows.
- Confirm the dealer has their own fleet of trucks (or a reliable subcontractor). We've caught 4 potential delays in the last year just by asking this question.
Step 7: Look for “Small Client” Red Flags
When I was starting out, I ran a one-man operation with a $4,500 budget for my first crane rental. The vendors who treated my small order seriously? I still rent from them today—$50,000+ orders.
Here's what to watch for:
- Vendors who dismiss your questions as “too detailed.” That's a sign they don't want to support a small customer properly.
- Stonewalling on service commitments or response times. A vendor who makes you wait 3 days for a quote on a small rental will probably ignore you when the crane breaks down.
- Uneven pricing compared to what's shared publicly. If their quote is 30% higher than the listed rental rates, ask why (and get a quote from a second vendor.
Small doesn't mean unimportant—it means potential. A good supplier will treat your $2,000 rental like it's worth $200,000.
Final Thoughts (and the Mistakes to Avoid)
I've personally made (and documented) 11 significant procurement mistakes since 2017, totaling roughly $47,500 in wasted budget. Some were small—$890 for a redo on a bracket that didn't fit. Others were larger—a $4,500 delay from a wrong crane spec. But the pattern is always the same: I assumed things would work out without checking the details.
This checklist won't make you perfect. But if you use it for your next Potain crane purchase or rental, you'll skip the mistakes I had to pay for. (Note to self: I really should publish the full version of this checklist with all 22 items.)
Pricing as of January 2025; verify current rates before budgeting.
