How to choose the right crane class for your UAE lift
City crane, rough terrain, all terrain or crawler. A full guide to picking the crane class that matches your load, your site and your schedule, with the four questions that settle it.
8 min read · 2026-06-27
Hiring the wrong crane class is one of the most common ways a lift slips before it starts. Too small and the load is out of reach, or out of capacity at the radius you actually need. Too large and you pay for capacity you never use and lose a day to assembly. The class you need is not a matter of taste, it follows from the load, the site and the schedule, in that order.
Get those three clear and the class almost picks itself. This guide walks through the main classes, why capacity matters more than the headline rating, and the four questions that settle which machine to book.
Start with the load, not the crane
Before you look at any machine, fix the heaviest load, the radius it lands at, and the hook height. A crane is rated by what it lifts at a radius, not by one big number.
The load picks the crane, not the other way round
A crane is rated by what it can lift at a given radius, not by a single headline figure. The same unit that lifts 100 tonnes tucked in close may manage only a fraction of that at full reach. So the starting point is never the crane, it is the weight, the radius and the hook height of your lift. With those three numbers the field narrows fast.
The main crane classes
Five broad classes cover almost everything that gets hired in the UAE, each suited to a different mix of capacity, access and ground.
| Class | Capacity range | Best for |
|---|---|---|
| City or taxi crane | 25 to 60 tonnes | Tight urban and tower work, fast to set up |
| Rough terrain | 30 to 100 tonnes | Confined and unprepared ground |
| All terrain | 60 to 500 tonnes plus | Road legal, quick to move between sites |
| Crawler (lattice) | 80 to 800 tonnes plus | Tracked stability, long booms, heavy lifts |
| Truck mounted or boom truck | up to 50 tonnes | Rapid load and unload, routine handling |
Capacity is about radius, not the headline
The single most misread point in hiring a crane is capacity. The rating you see is at a short radius. Out where the load actually lands, the figure is far lower. The chart below shows the indicative top capacity of each class, but remember that every one of these falls away with reach, which is why the radius is in your first three numbers.
3
numbers narrow the class
Radius
where real capacity lives
5
classes cover most jobs
1
lift study confirms it
Four questions that decide the class
- 1
How heavy and what size?
The heaviest load and its dimensions set the floor on capacity.
- 2
What radius and hook height?
Reach and height decide how much capacity you actually need at the work point.
- 3
What ground and access?
Soft or tight ground may point to a crawler or a compact class.
- 4
How long and how often?
A single heavy pick and a repetitive daily duty call for different machines.
Reach and ground push you up a class
If the load must clear an obstacle or land far out, capacity falls with radius and you often need a bigger machine than the bare weight suggests. Soft ground can push you to a crawler over an all terrain on pads.
When to step up a class
Two cases push you up. The first is reach: capacity falls away with radius, so a load far from the crane often needs a larger unit than the weight alone implies. The second is ground: soft or unprepared ground needs mats and outrigger spread, and a crawler may be the safer call. A short lift study settles both before mobilization, so you book the right class once rather than discovering it on the day.
If you are unsure, send the weight, the radius and a photo of the site. We will match the right class with operators, riggers and a lift plan, and price it at a live rate rather than a list figure.
Need this on a live job?
Send the spec and dates. Indicative rate back in minutes, certified crews and clearances handled.