How to Calculate the Load Capacity of a Jib Crane

A jib crane is a type of crane with a horizontal arm that supports a hoisting mechanism, and is bolted to the ground or wall by a support pillar. These cranes are used for everything from loading docks to heavy-duty pickup trucks. It is very important not to overload a jib crane because if the crane mechanism breaks, it will most likely damage or destroy the cargo as well, and any people standing near the apparatus.

Jib cranes have a horizontal member called a jib or boom that holds the hoisting mechanism.

Step 1

Determine what the model number of your crane is. You can find the model number on smaller cranes on the vertical pillar, often on a label near the bottom of the pillar. On larger cranes, the model number is in the control cockpit, on or under the control panel.

Step 2

Contact the manufacturer of the crane to request the operation manual for your model of crane.

Step 3

Consult the manual for your model of crane for the load capacity rating, which will probably be in pounds for small cranes, and tons for larger cranes.