A knuckleboom crane appears similar to a standard crane, except that the boom articulates at the 'knuckle' near the middle, letting it fold back like a finger. This provides a compact size for storage and maneuvering.
Knuckleboom crane arms are much lighter than boom truck cranes, and they are designed to allow for more payloads to be carried on the back of the truck that it is mounted on. The majority of them are mounted behind the cab and leave the entire bed of the truck empty. Smaller knuckleboom cranes can be used without a certified crane operator as long as the maximum capacity is under 15,000 pounds or the maximum boom length is under 25 feet.
The cranes come with different types of control systems, such as: stand up, control from the ground, seat control, or radio remote control. The radio remote systems now can start the crane as well as run the crane. Now, they come equipped with a computer readout system that immediately gives readouts from the system if the crane is overloaded or not.
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