Do crane manufacturers produce a separate load/capacity chart for each operational quadrant?

Crane manufacturers typically produce a separate load/capacity chart for each operational quadrant of the crane's movement. This is essential because the load capacity of a crane can vary significantly depending on the angle of the boom, the radius of the load from the center of the crane, and the specific orientation of the crane in relation to the load. Each quadrant represents different configurations and lifting conditions, which can affect stability and load-bearing capacity.

By having specific load/capacity charts for each quadrant, operators can ensure safe operations by not exceeding the recommended load limits under various conditions. This practice enhances safety and operational effectiveness, as it takes into account factors such as counterweights, boom length, height, and angle that are crucial to maintaining balance and preventing accidents.

In contrast, not all manufacturers may provide such detailed segmentation, which can lead to confusion or misuse if only a single load chart were used across multiple quadrants. Therefore, having separate charts is a common and recommended practice in the crane manufacturing industry.