What does load radius refer to in crane operation?

Load radius refers to the horizontal distance from the pivot point of a crane, which is typically located at the base or center where the crane rotates, to the point directly under the hoist hook where the load is attached. This measurement is crucial for crane operations because it helps operators determine the lifting capacity of the crane at various distances from the pivot point. As the load radius increases, the lifting capacity of the crane generally decreases, which is an important consideration when planning a lift to ensure safety and compliance with load limits.

Understanding load radius is vital for guaranteeing that lifting operations are conducted within safe operational parameters, as exceeding the limits can lead to tipping or other hazardous situations. The other choices relate to different aspects of crane operation and capacity but do not accurately define load radius.