The crane boom, the ground, and the vertical hoist cable form a triangle, and the angles and side lengths of this triangle can be used to determine how much weight can be supported by the hoist. Once you know that the equipment in question is capable of lifting the intended load, a mathematical formula can be used that tells you how much a crane can lift based on the operation’s geometry.

Whether or not a lattice jib is being used and whether the crane is going to be carrying the load or staying in one spot will all affect the capacity of the hoisting operation. Some mobile cranes and hydraulic systems are stronger than others, and each crane has a different amount of counterbalance weight and outrigger setup that allow it to stay stable during a hoist.ĭifferent factors can affect a mobile crane’s lifting capacity. Calculating Crane Load CapacityĮvery crane has a different lifting capacity that is first established by the equipment being used. At Eagle West Crane and Rigging, our technical service centre allows us to plan out every operation that our cranes are involved in and ensure the success and safety of each hoist.

It is important to know how to calculate crane load capacity for any hoisting endeavour so that you can be sure that you are using your mobile crane safely. Every mobile crane has a specific load capacity that is determined by various factors and that capacity can change according to the angle and lift range of the hoisting operation.

Crane boom length and radius