On a project at IJburg Amsterdam, about 110,000 cubic meters of sand is unloaded every week. Usually, two Caterpillar 390's are used with J&B grabs.

Now Rigter/Kinshofer was given a chance with an entirely new type of grab. The new double HPX 8,000 litre. Per grab, 55,000 cubic metres of sand are unloaded, which means approximately 93,500 tonnes per week.

The double HPX excels in weight and speed, but it is still a prototype, which is why filters have also been built-in so that if there are any problems, no metal or sealing parts can get into the crane or vice versa.

The first results are very positive, and the crane operators do not want to take it off any more. We are happy to continue testing and hope to start serial production at the end of the year. Rigter/Boskalis proud....