Potains dual working in Hamburg

By Euan Youdale12 February 2010

Höhns-Bau GmbH & Co. KG. employs two Potain tower cranes at Hamburg’s HafenCity harbor redevelop

Höhns-Bau GmbH & Co. KG. employs two Potain tower cranes at Hamburg’s HafenCity harbor redevelop

German construction company Höhns-Bau GmbH & Co. KG. took delivery of two Potain flat top tower cranes to be used in the development of Hamburg's HafenCity harbor area.

It is one of the largest European urban makeovers of the 21st century, says Potain parent company Manitowoc. An MDT 218 and MDT 268 arrived on site in July 2009, and will work on the project until April 2010.

Jens Höhns, managing partner and engineer at Höhns-Bau, said using flat top cranes gave more flexibility on the project. "We started with an MDT 218 on this project, but as the schedule accelerated, it was clear we would need to erect another crane," he said.

"There were two options available to us. Either we could erect a larger crane, farther away from the project that could swing over the construction. Or we could erect a topless crane with a shorter jib that would swing underneath the crane that was already erected. We chose the second option."

The MDT 268 is particular;y economical to transport, says the manufacturer. Including the base, 95 tonne central ballast, 25 m jib, 13.8 tonne counterweight and over 50 m of mast, it can be transported on eight articulated trucks. The counterjib on the crane also folds for transportation.

The MDT 218 A J8, was erected with a 40 m jib giving it a jib end lift capacity of 4.6 tonnes. The crane was mounted on a 4.5 x 4.5 m base with 1.6 x 1.6 m mast sections. Height under hook for the crane is 55.7 m.

The second crane, the MDT 268 J12, was assembled farther away and above base level. The MDT 268 is able to rotate under the MDT 218 as it is installed with a 52.4 m height under hook, and its base is 2.5 m lower than the MDT 218. As the distance between the mast of the two cranes is just 30 m, the MDT 268 is working with a 25 m jib. It has a 12 tonne maximum capacity and at its jib end can lift 9.4 tonnes.

Delivered directly to your inbox, World Crane Week Newsletter features the pick of the breaking news stories, product launches, show reports and more from KHL's world-class editorial team.
Long Reads
Post-pandemic demand lengthens delivery times for construction equipment
Government stimulus measures following the global pandemic have led to a surge in demand for construction equipment
Technology paves the way for driving 3D development
What is 3D modelling and what is it used for? Discover more at SC&RA Workshop
PREVIEW: SC&RA Crane & Rigging Workshop
The 2021 Crane & Rigging Workshop will be held September 14-16 at the Hyatt Regency Chicago, USA
Alex Dahm Editor, International Cranes and Specialized Transport Tel: +44(0) 1892 786 206 E-mail: alex.dahm@khl.com
Mike Posener Sales Manager Tel: +353 860 431 219 E-mail: mike.posener@khl.com