What does 'bare shaft capacity' signify in a lifting-capacity chart?

The term 'bare shaft capacity' specifically refers to the maximum weight that a lifting machine can handle when no additional attachments are being used. This means that the capacity is evaluated based solely on the machine's inherent lifting ability, without the influence of any accessories or modifications that might alter its performance.

Understanding bare shaft capacity is crucial for ensuring safe lifting practices, as it sets a baseline for how much weight the machine can lift under optimal conditions. Operators need to be aware of this capacity when planning lifts, as adding attachments or equipment can reduce the overall lifting capability.

This definition aligns with industry standards and provides a clear guideline for equipment utilization in various operational contexts, emphasizing the importance of knowing a machine’s specifications before engaging in any lifting activities.