Custom-built sand pump gearbox for trailing suction hopper dredger



No name


Europe; Netherlands



Associated capabilities

Stork gears & services received an order for the development of a special gearbox for a new type of trailing suction hopper dredger.

The order was for 3 gearboxes with the option of ordering a further 2. It soon became clear that a high level of requirements and functionality was set, and that only a special custom-built gearbox could provide a solution.


Stork Gears & Services has made an important contribution to this very innovative trailing suction hopper dredger by constructing a sand-pump gearbox that exactly matches the performance of the dredger pump. The gearbox, driven by two diesel engines, makes it possible for the dredger pump to run both at low RPMs for suction and at high RPMs for ship-to-shore pumping. This can be done using either 1 or 2 engines, and the unique mirrored construction makes it possible for the suction and pumping to be divided evenly between the two engines, which guarantees an optimal lifespan for the drive system. The gearbox can also be connected to hydraulic motors or pumps for auxiliary power. 

We wish the ship and its crew safe voyages!

Really custom made, no compromises!

Our customer was in need of a special gearbox for a completely new to built trailing suction hopper. Stork was able to build a custom specific gearbox that fitted seamlessly into the design of the dredger vessel with no compromises to the original design of the installation. Our customer appreciated our customer centered service, extensive experience and technical knowhow in order to deliver a high quality unique gearbox solution for a complex challenging project!

Project details

Market segment: Dredging

Equipment: Trailing suction hopper dredger
1 Custom-built sand pump gearbox for trailing suction hopper dredger