The length of the boom is represented by the top row. There are two numbers in each cell when you look at where the rows and columns meet. The first number is the crane’s load capacity for the given boom length and lift radius. The boom height is just below that number in parentheses. The second number in the first row and column is a multiplier.
This number represents the amount of load that can be carried by a given crane. For example, if a crane has a capacity of 1,000 pounds and a height of 10 feet, then the multiplier would be 1.1, which means that a 10-foot-tall crane can carry a load of 1000 pounds.
Table of Contents
What is a crane load chart?
A crane load chart helps the operator calculate a crane’s lifting capabilities. This chart is used to make sure that the crane does not exceed its lifting capacity. Load charts take into account the distance and angle at which the load is to be applied when calculating the lift capacity.
What is the bold line on a crane load chart?
The bold line on the chart represents the separation of structural strength and stability. The crane’s stability limits the capacities below the bold line. The structural strength of the structure is what limits capacities above the bold line.
How much can a 90 ton crane lift?
In addition to the above, there are a number of additional features that are designed to improve the overall performance of the system.
What must you know when using a load chart?
The load charts are specific to the make, model and configuration of a specific piece of equipment. Don’t forget to include adjustments for buckets, boom extensions, load blocks, hoisting rope and other attachments that will alter the lifting capacity of the crane or equipment used to lift the load.
What is crane capacity index?
The document explains how arane capacity index can be determined. The calculation of the cci is as follows:radius * lifting height * capacity. The result is in Te m2. A reference is used to help clarify calculations. It is important to note that the lifting capacity of a crane is not the same as its lifting height.
For example, if the crane has a lift height of 1.5 m and the capacity is 1,000 kg, then it will have a capacity index of 0.1. This means that it is capable of lifting only 1 kg.
What is load chart?
Load chart is a schematic and graphic device used to indicate the amount of authorized work yet to be performed by a machine, a group, or any other producing unit.
