What do the load/capacity charts of mobile cranes depend on?

The load/capacity charts of mobile cranes primarily depend on the configuration of the crane at the time of the lift. This configuration includes several critical factors, such as the boom angle, boom length, and the position of the counterweights. When a crane is configured properly, it can safely lift a certain maximum load at different radii and elevations.

Understanding the specific configuration is vital for ensuring safety and stability during operations. If a crane is fully extended or set up incorrectly, its lifting capacity can be significantly reduced. Thus, the load charts are designed based on various configurations, which help operators determine how much weight can be lifted under different circumstances. The precise handling of these configurations directly influences the crane's ability to perform safely and effectively during a lift.