Potain Tower Crane Load Chart: A No-Nonsense Guide

If you're here, you're probably looking for one of two things: a Potain tower crane load chart or Potain tower crane parts. Maybe both. I can't send you a universal chart, because there isn't one. The chart that applies to your crane depends on the exact model, jib length, hook height, ballast, and even the tower configuration under the cab.

In my role coordinating crane rentals for construction companies, I've handled 200+ rush orders over the last six years, including same-day turnarounds for contractors who didn't think they needed a load chart until the crane was already on site. So the first thing I'll tell you is this: the answer depends on which situation you're in. Here are the three situations I see most often: a rental arriving soon, a used crane purchase, and a complex lift. The advice is different for each.

Small note: when I say 'load chart,' I do not mean a generic chart. I mean the chart for that exact crane. I'm not a structural or lift engineer, so I can't sign a lift plan. What I can do is share the operational part that I see every week. There's a way to approach this without getting overwhelmed.

Why There Is No Single Potain Load Chart

A Potain load chart is not a gas pump label. When you drive up to a gas pump, the octane number is fixed. The crane chart changes with configuration. A crane with a 40-meter jib can have different capacities than the same model with a 55-meter jib. The same crane with less counterweight can have a different chart. That's normal.

The math itself isn't 'Are You Smarter Than a Fifth Grader' hard. It's radius, load, and geometry. The hard part is making sure you're using the right chart for the right crane. That's where mistakes happen.

Also, a load chart is not something you buy from a parts website. You might use a Dewalt drill to mount a chart bracket in a cab, but you won't find the official chart in the same catalog as drill bits. It comes from the manufacturer or an authorized dealer for that specific serial number.

I have mixed feelings about load chart apps. On one hand, having a chart on your phone is better than fumbling through a laminated binder. On the other, a screenshot of the wrong chart is just as easy to share and repeat. The chart needs to match the crane in front of you, not just a similar model.

Scenario 1: You Need a Potain Tower Crane Load Chart for an Upcoming Rental

Most of the calls I get about load charts happen after the crane is already scheduled. The pressure is real, and the quickest option is not always the best one.

In March 2024, a contractor called at 9 PM, 36 hours before a foundation pour, because their Potain was arriving the next morning. They had printed a load chart from a third-party site, and it was for the wrong configuration. Normal turnaround for an official chart is two to three days. We found the serial number, called the dealer, paid a $250 expedite fee, and had the correct document in six hours. Better than a missed pour. But it would have been avoidable with one phone call earlier.

If you're in this scenario, here's what works:

• Get the serial number and full model number from the side of the crane.
• Ask the rental vendor for the load chart that matches exactly that configuration, including jib length, counterweight, and tower height.
• Ask them to walk you through the chart. A rental company that treats a one-crane request as too small is not one you should rent from twice.
• Check the capacity at your actual work radius, not the maximum radius.
• Remember the weight of the hook block, slings, and other rigging. The chart gives a rated load; the net load needs to stay below it.

I've had small contractors apologize for asking questions about a single-crane rental. Don't. Small doesn't mean unimportant. The vendor who treats a $500 rental seriously is the one I still recommend for $20,000 projects.

Scenario 2: Buying a Used Potain Tower Crane? Why Potain Tower Crane Parts and the Load Chart Go Together

This is where potain tower crane parts becomes the main search term. If you're buying a used crane or repairing one, the load chart is still a central document. If a seller can't provide a chart that matches the serial number, treat it as a red flag.

Potain tower crane parts are not universal. A slew ring for a top-slewing crane doesn't fit a self-erecting crane. Brake discs, load moment limiters, cables, and control boards vary by series and year. Even if two cranes look similar, the part numbers can be completely different.

Here's what I tell clients in this situation:

• Always record the serial number before you order Potain tower crane parts.
• Ask for the original load chart and parts list, not a photocopy from another crane.
• If the chart is missing, request a replacement from an authorized Potain dealer. Be ready to share the serial number and configuration.
• Don't use aftermarket parts for load-bearing or safety-related equipment unless a qualified engineer approves the substitution.

In the U.S., ASME B30.3 is the commonly referenced standard for construction tower crane inspection and maintenance as of January 2025. The load chart is part of that documentation. If you're outside the U.S., check your local code, but the principle is the same: keep the original documents with the crane.

My experience here is based on about 200 rental and parts orders, mostly for mid-sized contractors in North America and the Middle East. If you're running a large fleet with a full maintenance department, your process can be more detailed. For the rest of us, the serial number is the starting point.

I'm not a parts specialist, so I can't tell you which exact Potain part number you need. What I can tell you from a coordination perspective is this: the wrong part can turn a small repair into a two-week shutdown. The extra phone call to verify is worth it.

Scenario 3: You're Planning a Complex Lift

If you're dealing with multiple cranes, large prefabricated pieces, or a tight site, the load chart is an input, not the final answer. This is when you need a lift plan, and ideally a qualified engineer to review it.

The confusion happens when people treat the chart like a gas pump reading. It says four tons at this radius, so we're good. But a rated capacity is not a clearance to lift that load in every condition. Wind speed, ground conditions, dynamic loading, rigging weight, and the condition of the crane all matter.

I've sat in meetings where the argument was about the load chart when it should have been about soil conditions under the tower base. That part is beyond my expertise. It's structural and geotechnical work. Find a lift engineer who can look at the whole picture.

If someone says the load chart says okay and doesn't ask about the site, walk away. That phrase is a sign that the chart is being used as a shortcut, not as part of a safe lift plan.

How to Tell Which Scenario You're In

Here's a simple way to decide:

• Scenario 1: The crane is already assigned to a job or arriving soon. You need to verify capacity, and you need answers fast.
• Scenario 2: You own a crane, are considering buying one, or you're ordering parts. Documentation and part numbers matter more than speed.
• Scenario 3: You're planning a complicated lift. Plan first, then check the chart.

If you're still not sure, there's no shame in asking. I've learned the hard way that a 15-minute conversation with an expert beats three hours of searching for the wrong document online.

And if you're a smaller contractor with one crane need, don't let anyone make you feel like your question is too small. The best suppliers give the same load chart to a one-week rental as they do to a two-year fleet. That's not charity. That's just good business.

A Potain tower crane load chart is a serious document. Pair it with the right Potain tower crane parts, and you've got the start of a safe, reliable operation. Skip that, and you're guessing. In my experience, guessing is the one thing that never looks good in an incident report.