The maximum capacity is one of the statistics that appears on the spec sheet, in the sales brochure, and in most conversations about renting a crane, but it is also one of the least relevant when deciding which crane to employ for a specific lift.\u00a0<\/b><\/p>\n
A 100-ton crane is only capable of lifting 100 tons under a specific set of conditions, such as minimum boom length, minimum load radius, fully extended outriggers, and a specified counterweight configuration. When the load moves farther from the crane, the boom extends over an obstacle, or the jobsite prevents full outrigger extension, the crane\u2019s usable capacity can decrease significantly.<\/span><\/p>\n Two cranes with the same maximum capacity rating can perform very differently depending on the load radius, boom length, and configuration of the lift. The best way to determine which crane is more suitable for\u00a0 a particular lift is to <\/span>understand their crane load charts<\/b><\/a> and then compare rather than relying on their maximum capacity ratings.<\/span><\/p>\n Load charts are technical documents that specify a crane\u2019s rated capacity for different combinations of load radius, boom length, and operating configuration. Manufacturers provide these charts for crane operators, riggers, lift planners, contractors, and equipment buyers to determine whether a specific crane can safely perform a planned lift.<\/span><\/p>\n Reading and comparing load charts is an important task when selecting between two cranes because the comparison directly affects lifting capability, jobsite safety, project planning, and equipment selection. This article explains how load charts are organized and how to compare two cranes at the specific radius, boom length, and configuration required for a job.<\/span><\/p>\n