One of the most common misconceptions on a construction site is assuming that a 50-ton crane can lift 50 tons at any distance. This is where accidents happen and projects get delayed. The secret to understanding a crane's true capability lies in a single, critical document: the (often found within the load chart).
Account for the weight of all rigging gear (slings, shackles, spreader bars). crane radius chart
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 One of the most common misconceptions on a