The Kroll K10000 is considered the worlds largest tower crane (note the service crane positioned above the tower crane mast has a lifting capacity of 20 tonnes)
It is debatable wether it is the biggest lifter when compared to the Favco M2480D, a custom made luffing crane made by Favelle Favco for Marr contracting.
The Favco M2480D has a max lift of 330 tonnes up to 15 meters working radius, its capacity at 100 meters is 25 tonnes.
It is currently working on the Barangaroo construction site on Sydney harbour.
The Kroll K10000 has a maximum lift of 240 tonnes up to 44 meter radius (this is a superlift, under this configuration the cranes trolley will not work, allowing only for slewing, lifting and lowering) its capacity at 100 meters radius is 94 tonnes
The reason for the larger lifts up close for the M2480D is luffing cranes design more efficiently transfers the weight of the load and the cranes jib through to the cranes tower.
Unlike most tower cranes the K10000 slew ring is at the base of the crane, meaning the jib does not slew, the tower / mast of the crane slews. This allows weight to always be evenly distributed on tow of the tower corners.
The K10000 is fitted with an access elevator removing the climb an operator has to do to reach his cabin
Whilst the M2480D is often used on construction projects, the K10000 is more limited to industrial projects such as shipyards and power plants. A single K10000 requires in excess of 50 trucks to be transported.
*Both the K10000 and M2480 are made by Favelle Favco group, who acquired Kroll cranes in 1997
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