Load Moment Indicators typically consist of a computerized display that provides the crane operator with information about the crane’s load capacity, boom angle, and other critical parameters. The system uses sensors to measure the weight of the load being lifted, as well as the position and movement of the crane. When the load approaches or exceeds the crane’s safe operating limits, the LMI will issue an audible or visual warning to alert the operator to the potential danger.

In addition to providing real-time feedback to the crane operator, load moment indicators can also record data about the crane’s usage, including the weight and position of loads lifted, the duration of lifts, and the number of lifts performed. This data can be used for maintenance and safety analysis, as well as for optimizing crane usage and improving efficiency.

Overall, load moment indicators are an essential safety feature for cranes, helping to prevent accidents and injuries by ensuring that the crane is being used within safe operating limits at all times. They are widely used in the construction, mining, and oil and gas industries, as well as in other applications where cranes are used to lift heavy loads.