1975: K-10000 Tower Crane

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Innovation: Largest Tower Crane in the World
Location: Denmark
Year: 1975
By: KRØLL Cranes A/S, Berthold Lang

The KRØLL K-10000 has held the title of the world’s largest tower crane for over 35 years. Standing almost 400 feet tall with a 266 foot jib reach, the standard jib model can lift 120 tons at a radius of 269 feet. The long jib model can lift 94 tons to a radius of 330 ft. The K-10000 can rotate 360° once it has been bolted to its 40 foot diameter concrete base. This allows the crane to cover an area of 7.5 acres, or approximately 6 football fields. A second servicing crane is attached to the top for the original construction and future maintenance of the K-10000. A system of three counterweights, one set and two mobile on trolleys, weighing a total of 100 tons, are used to balance the crane. Under this load the crane can withstand wind speeds of up to 175 mph. [1] With its immense jib span and load capacity the K-10000 decreases the time for construction on huge construction projects by eliminating the need for small cranes and crawlers.

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