knuckle boom
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A knuckleboom crane is a kind of standard crane whose boom articulates at the 'knuckle' near the middle, letting it fold back like a finger. This provides a compact size for storage and manoeuvring. Knuckleboom cranes have become very common on offshore vessels as less of the deck space is blocked by the crane. Disadvantages of this crane type are the higher power demand and increased maintenance requirement due to the increased number of moving parts. 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. 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. Currently, they come equipped with a computer readout system that immediately gives readouts from the system if the crane is overloaded or not.


Notable manufacturers

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Hiab Hydrauliska Industri AB (HIAB) is a Swedish manufacturer of loader cranes, demountable container handlers, forestry cranes, truck-mounted forklifts and tail lifts. The company is owned by the Cargotec Corporation. History The name, Hiab, co ...
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Palfinger The company Palfinger AG is an Austrian manufacturer of hydraulic lifting, loading and handling systems, especially known for the cranes. With 150 models and a market share of 35 percent, the company is the world market leader. The PALFINGER Gr ...


See also

* Crane (machine)#Loader crane Atlas Cranes GMBH


References


External links


Link to image
Cranes by type {{engineering-stub