IJmuiden- The Netherlands. MOTAS Dredging Solutions has produced and delivered a first set of high-quality Fenders for the CSD Spartacus, the largest Cutter Suction Dredger in the world.

MOTAS Dredging Solutions engineered, produced and delivered a set of Fenders for DEME’s CSD Spartacus. The Fenders are custom made for the CSD Spartacus and exist of several high-quality components that can be mounted on the vessel but can just as easily be dissembled.


The Fenders safeguard the CSD Spartacus from large vessels, such as hopper barges, which moor alongside while the CSD Spartacus is in full operation. The Fenders are engineered in such a way that they give the CSD Spartacus maximum protection from vessels approaching at every possible angle and speed. This because MOTAS Dredging Solutions paid close attention to 3 critical components: first being high energy absorption capabilities of the fenders, second the durability and wear resistance of the fenders and third, easy use and secure mounting to the side of the hull.

“MOTAS designed, constructed and delivered the Fender System in close cooperation with DEME’s project team.”

Georges Teheux, MOTAS dredging solutions

A high quality package

The Fender units themselves consist of several different parts, such as the main frame which is made from steel which is the part that is mounted on the hull. The rubber fender elements are capable of high energy absorption and have a low reaction force.  The fender wear pads, also called liners, are made from Ultra-high-molecular-weight polyethylene (UHMWPE). The combined qualities of these materials, whilst being wear resistant, as well as the unprecedented size make the whole modular system unique and innovative. While always offering maximum protection to the CSD Spartacus.

Proof in testing

The rubber fenders and liners were thoroughly tested throughout the full manufacture process to ensure DEME received a high-quality Fender System in a unique size. The rubber fenders were tested through compression under a 1000-ton bench. Whereas samples of the liners were checked for quality and approved by the internationally renowned inspection society.

Specifications for this project

  • Rubber Fenders
  • Ultra-high-molecular-weight polyethylene (UHMWPE) Liners
  • Wear resistant
  • Modular
  • Dismountable
  • DEME
  • CSD Spartacus
  • Quality Checked
  • Largest and most powerful Cutter Suction Dredger in the world
Fig 1. Rubber Fender compression test.
Fig 2. Fully assembled unit.
Fig 3. Fully assembled unit.
Figure 4: Artist impression of the vessel with the fenders shown on the side