RAVESTEIN BUILDS THE LARGEST AND MOST EFFICIENT BACKHOE DREDGER
The new build backhoe dredger Magnor, being built for Boskalis will be the largest and most efficient backhoe dredger in the world. At 72.0 x 20.4 x 5.5 metres the Magnor is larger than any other backhoe dredger.
Two large deck cranes are fitted for work on- and changing of the equipment (boom, stick and bucket) of the excavator as well as as a large deck workshop, stores, machinery and accommodation for a crew of eight. With 40-metre spuds Magnor will be able to dredge to depths of 32 metres. The biggest bucket will have a capacity of 45 m3, nearly 1½ times the volume of a 20’ ISO Container.
The excavator, based on a Caterpillar 6090, was completely re-built and has a total installed power of 4,100 kW. The bucket of the Magnor will be able to lift no less than 67,000 kilograms of dredged material. The complete lifting section with the boom, the stick, the hydraulic cylinders and the bucket were developed by Boskalis. An interesting innovation is the use of water cooling for the engines and hydraulics which delivers huge improvements in fuel consumption and noise reduction.
The detailed design of the dredger was provided in-house by Ravestein in close cooperation with the Boskalis new build team. The dredger and all its components are built according to Bureau Veritas classification.