The project is taking place in the German spa town of Neuharlingersiel, where the slipway will operate in up to 1m of water.
Construction involves sheet pile walls up to 21m long, which are positioned by the crane before being driven into the ground by a vibrator. The project is located in a tidal range that floods the area daily, creating an additional challenge.
The telescopic arm of the 673 enables the pile walls to be hoisted far out into the sea, says Sennebogen, while the crane can also drive out on the sloped subsoil several metres into the water, due to its wide-gauge crawler undercarriage.
The crane was supplied by Sennebogen’s sales and service partner Tecklenborg Baumaschinen, and has a maximum boom length of 36m and load capacity of 70t.
