Liebherr LR 1750 - Wagenborg Nedlift
This is the youngest Liebherr LR 1750 of Wagenborg Nedlift, with year of manufacture 2013. The crane was together with the other LR 1750 used to lift two heavy parts out of a ship.
There are some small differences compared with the other LR 1750, on this crane is only "Wagenborg" written and around the superstructure are some walkways mounted.
The crane was fitted with a 49 meter main boom and a 31.5 meter derrick boom. Here the crane is preparing for the second lift.
A track is 11.9 meters long, 1.5 meters wide and 2.13 meters heigh. Mass each is around 44 tonnes. The crane can assemble his own tracks with a hydraulic cylinder mounted on his gantry.
Between the tracks is in total 75 tonnes of counterweight mounted.
220 tonnes of upper counterweight is used, which can be extended up to 245 tonnes. The counterweight has a 9.175 meter tailswing. Below the swivel of the adjustment cable are the connection points for the wheeled counterweight and the superstructure extension recognizable.
On the front side are three heavy slewmotors mounted. In front of the motors is the small reefing winch mounted, this winch is used to pull the heavy hoist cable (28 mm) over the boom and trough the hook blocks. The crane is equipped with a spittable slewing ring (quick connection) to split the upper- and lower part for the transport.
The 400 tonne hook is made out of two sheave blocks with each 7 scheaves. With 2x 12 lines the crane can lift 352 tonnes. The mass of the hook is 15 tonnes.