Which item must be marked on all overhead cranes?

The requirement to mark the rated capacity on all overhead cranes is critical for safe operation. The rated capacity indicates the maximum weight that the crane can lift safely under specified conditions. This information is vital for operators to make informed decisions regarding the loads they handle, ensuring that they do not exceed the crane’s lifting capabilities, which could lead to structural failure, accidents, or injuries.

Marking the rated capacity allows operators to easily identify the limits of their equipment at a glance, facilitating compliance with safety regulations and promoting responsible operating practices. Each crane may have different ratings based on design, intended use, and safety standards, so it is essential that this information is clearly displayed and easily visible to prevent overloading.

The manufacturer name, maximum capacity, and model of the crane, while important for other record-keeping and identification purposes, do not specifically address the critical information needed for safe lifting operations in the same direct manner as the rated capacity does. Ensuring that operators know the rated capacity is a fundamental aspect of crane safety.