Crane Radius Chart !free!

I can provide a tailored calculation example or a template for a lift plan.

As the radius increases (as you extend the boom further out), the crane’s lifting capacity decreases. This is due to the physics of leverage—the further out the load, the more torque is placed on the crane’s structure and stability.

If the load you need to lift is heavier than the number on the chart, you cannot make the lift. You either need a bigger crane, a shorter radius, or a different boom configuration. crane radius chart

Soft soil or unlevel ground can cause a crane to tilt, effectively increasing the radius and risking a tip.

Subtract the weight of the "deducts" (hook block, rigging, headache ball, and stowed jib) from the gross capacity to find how much actual payload you can lift. Factors That Affect Chart Accuracy I can provide a tailored calculation example or

Ignoring the radius chart is like driving a car blindfolded—you might move forward, but eventually, you will crash. Here is why the chart is essential:

Radius | 30ft Boom | 50ft Boom | 70ft Boom --------|-----------|-----------|---------- 10ft | 50,000 | 50,000 | -- 15ft | 45,000 | 45,000 | -- 20ft | 35,000 | 35,000 | 30,000 30ft | 22,000 | 24,000 | 22,000 40ft | 12,000 | 18,000 | 16,000 50ft | -- | 10,000 | 11,000 60ft | -- | 5,000 | 7,000 70ft | -- | -- | 3,000 If the load you need to lift is

Charts usually have a bold line or a shaded area to distinguish between these two zones. Never exceed the capacity in either zone, as structural failure often happens without warning. ⚓ Safety Checklist for Radius Planning