Coordinated hook heights
“Their extensive flexibility in terms of height adjustment and lifting capacity make these machines an ideal match for our construction site,” says site manager Bernd Keuter from construction contractor Schulte. Site supervisor Christian Diekhaus (also from Schulte) agrees and is particularly impressed by the cranes’ driving performance, “The control system and drives make crane travel really smooth and safe.”
Liebherr dealer MARM Baumaschinen has provided the 172 EC-Bs and the 120 K.1 on hire. The 125 K and 81 K.1 cranes were purchased by Schulte. MARM is on hand with a service team for skilled maintenance and was involved in operational planning. Liebherr's Tower Crane Solutions project department also assisted with project planning. “The support provided by MARM and Liebherr was outstanding, right from project planning through to implementation,” says Bernd Keuter, the responsible site manager at Schulte.
The 125 K cranes are working with 34.3 and 41.5 metre hook heights and jibs measuring 50 metres. The 81 K.1 has a hook height of 17.9 metres and a 45-metre radius, the 120 K.1 is in use with a hook height of 25.6 metres and a radius of 50 metres. The 172 EC-B 8 cranes have hook heights of 25.5 metres, 33 metres and 40.5 metres; their jibs measure 50 metres. Thanks to their different hook heights, all the construction cranes are able to slew smoothly over each other without causing any obstructions.