This multifunctional machine can drill, drive foundation piles and drive sheet piles. It weighs 105 tonnes, is 36 metres high and can install sections up to 33 metres long. On the built-in 200KWh battery pack, the crane can manoeuvre and load and unload itself. A battery pack and counterweight of 1,000KWh will power a drilling motor, for example. Woltman chose the combination of a smaller and a large PM electric motor for maximum efficiency in energy use.
Safety
A precondition in the development was safety. On all fronts, this electric powerhouse has been designed and secured for safe use. BAM played an important role in the choice of an electric-hydraulic drive system, where hydraulically driven drills or vibratory hammers can also be used.
The Woltman 90DRe is now the top model in the Woltman range of foundation rigs and has already attracted a lot of interest from the market.