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Plant review

Since launch last year, more than 60 Liebherr MK80 cranes have been delivered across Europe. The crane combines road-going mobility with the functional advantages of a tower crane.

It offers a maximum hook height of 28m with a horizontal jib or 48m with luffing jib.

Maximum working radius is 42m with horizontal jib, 36.6m with the jib luffed to 30infinity when the crane can lift 1.7t.

Maximum lift capacity is 8t.

Crane hire specialist Schlopp, based in Heilbronn, Germany put the crane to the test on a building in Stuttgart.

The lift shaft was being reconstructed and loads of up to 500kg had to be lifted on to the 28m high roof.

A major constraint was a time limit of just 90 minutes.

And access to the site was difficult along the pedestrianised Konigstrasse, narrowed by trees, kiosks and street furniture.

With the jib luffed at a 30infinity angle, the loads were first manoeuvred over the edge of the building. The trolley was then run out to 20m and the cabin raised to hook height, providing an excellent view of the load.

The whole operation was completed within the set deadline.

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