New Water Injection Dredging installation from MOTAS

IJmuiden, the Netherlands – Yet another Water Injection Dredging installation is designed and constructed by MOTAS Dredging Solutions.

Fabrication of the jet arms, hoisting gantry with swell compensator and hydraulic installation was finished. Jetwater pump sets completed, all sections transported to the Far East client’s shipyard and integrated into the vessel.

Figure: WID installation

For information, technical assistance contact us via telephone: +31 85 13 00 795 or e-mail: today.

“MOTAS Dredging solutions offers the entire process. From design, fabrication, project management and supervision, quality control and transport to installation and system integration”


  • Dredging installation
  • Water Injection Dredger
  • Dredger components
  • Design and build
  • Project management
  • System integrator
  • CNC machined fit
  • Lifting gears
  • Hydraulics
  • Dredge pipes

New order for MOTAS Maximus® dredge ball joints

IJmuiden, The Netherlands – MOTAS Dredging Solutions has been awarded a new order for a series of bayonet ball joints. Received from one of our USA clients, who is looking to enhance the performance of his discharge pipeline system.

The 800 mm inner diameter ball joints are designed for 35 bar working pressure according to the MOTAS Maximus® concept and feature the unique double liner system giving it optimal wear resistance, as well as ease of maintenance.

The MOTAS Maximus® design allows a more balanced stress distribution throughout the component, providing reduced peak stresses and an increased strength in the joint. This improved joint strength then leads to higher reliability during dredging operations – while its lighter weight reduces the cost ratio associated with the product.

With our new design we have made significant improvements and taken the product to the next level” says Marco Menheere, Product Manager at MOTAS Dredging Solutions.


The MOTAS Maximus® ball joint design is developed in The Netherlands and available for pipe diameters in the range from 300 mm/12” to 1200 mm/47” and in pressure stages from 10 bars/145 psi, up to 45 bars/652 psi.

Due to the flexibility of the design, it can be equipped with several wear liner configurations.


  • Maximum strength
  • High quality cast steel parts
  • CNC machined
  • Tilting angle 15o or more


  • Multiple liner configurations
  • Weld-on or flange connection
  • Retained gland ring
  • Grease free bearing system

Customer assistance

For these and other wear resistant solutions, our experienced staff can help you to select the best materials and improvements for your project.

Contact us via telephone: +31 85 13 00 795 or e-mail:

About MOTAS Dredging Solutions

MOTAS Dredging Solutions serves customers world-wide with supply of (wear) parts and components, development, design and construction of dredging equipment and systems.

Figure 1: The fabrication of a first batch of the ball joints is finished at our facilities. Note the mounted pedestals for ease of logistics handling.


  • Dredge ball joint
  • High quality cast steel
  • CNC machined fit
  • QA/QC certified
  • Wear resistant
  • Working pressure up to 45 bar/652 psi.
  • Dredge components
  • Dredging system

MOTAS delivers sand backfill system for Fehmarnbelt tunnel project to Neptune

IJmuiden, The Netherlands – MOTAS Dredging Solutions has recently delivered the complete component package for the 800 mm pipe diameter sand backfill installation for these works by the Femern Link Contractors joint venture (FLC).

The order was awarded by Dutch shipyard Group Neptune Marine who are the builders of the large spreader pontoon with crew accommodation and integrators of the backfill system.

“MOTAS Dredging solutions offers the complete backfill installation package. From concept design, engineering, fabrication, quality control and transport to installation supervision at the builders’yard”

The spreader pontoon and installation is designed for the accurate back filling of sand on top of the up to 200 meters long tunnel elements after their placement in the tunnel trench, reaching water depths over 40 meters. The system and components design reflect the special care paid to avoid damaging the elements. This immersed tunnel solution is of a unique scale in terms of length and water depth.

We are very pleased to continue our cooperation with the versatile Neptune Marine Group, for over 50 years known for their reliable, flexible and high-quality maritime solutions.

FLC is the joint venture in charge of the Design & Construction of the immersed tunnel, the tunnel portals and ramps for the Fehmarnbelt project.

Besides the design and engineering of this backfill system the package constitutes of construction and supply of the following components:

  • Dredging pipelines (on topside)
  • Dredging ball joint
  • Density and velocity meters
  • Overboard backfill pipe system with gimbal joint
  • Rubber discharge hose
  • Angle transmitter sensor
  • Approx. 30 tons Diffuser head

Customer assistance

Our product portfolio, combined with expert technical advice and on-site support, makes us the perfect choice for all your dredging installation needs. For these and other dredging installations our staff can help you make the best material choices for your project and advise on improvements.

Contact us via telephone: +31 85 13 00 795 or e-mail: today.

Figure: Backfill system topside and hoist pipe mounted
Figure: Hoist pipe
Figure: Pipe line parts


  • Design
  • Engineering
  • Fabrication
  • Dredging installation components
  • Backfill system
  • Diffuser head
  • Fehmarnbelt
  • FLC joint venture

the Homeride

Our colleague Frank rode along with ‘the Homeride’. This is a bike ride for charity: the Ronald McDonald children’s fund. Parents can stay in a Ronald McDonald house, so that they are always close to their sick child (the houses are within walking distance of the hospital). Motas was one of the proud sponsors of this event and congratulates Frank and the other ‘Homeriders’ with raising 1.499.579,- Euros!

the Team

#Homeride #fund raising #charity #Ronald McDonald children’s fund

MOTAS centrifugally casted dredge pipes: the best of both worlds

IJmuiden, The Netherlands –  The sand & gravel industry has made clients call for extreme wear resistant dredge system components. MOTAS Dredging Solutions has recently supplied several centrifugally casted bimetal dredge pipes for such customers’ needs.

Bimetal dredge pipes combine the best of two worlds: the ease of weldability with extreme wear resistance. The bimetal pipes outer sides are mild steel castings that can simply be welded upon, while the inner sides, that are in contact with the dredged slurry, are casted in a high alloyed white cast iron having a typical hardness of up to 60 HRC, ensuring longest possible wear life stand time.


  • Casted quality
  • Weldable mild steel
  • 50– 60 HRC hardness
  • white cast iron wear resistance

Customer support

For these and other wear resist solutions for e.g. sand & gravel hopper dredgers, cutter dredgers or other installations our experienced staff  can help you make the best  choices for your project and advise on improvements.

Contact us via telephone: +31 85 13 00 795 or e-mail: today.

About MOTAS Dredging Solutions

“From a single component to a complete dredger, MOTAS offers a wide range of products, engineered solutions and services for the dredge industry.”

#dredging #wear resistant #wear parts #MOTAS #dredging installations #dredge pipes

Bimetal pipe section


  • wear resistant
  • dredger parts
  • bimetal
  • heavy duty
  • weldable
  • dredge pipes
  • centrifugal casting
  • white iron casting
  • mild steel
  • sand & gravel dredging
  • dredging system

Motas will be present at the WEDA Dredging Summit & Expo ’23

We will be present at the WEDA Dredging Summit & Expo ’23, at the MGM Grand in Las Vegas, NV, from July 17-20, 2023. Come and visit us at booth 211. We’re looking forward to meeting you.

For more information:

MOTAS Coupling Systems

From a single component to a complete dredger, MOTAS offers a wide range of products and services for the dredge industry.

MOTAS Coupling Systems is a dedicated product group within MOTAS Dredging Solutions. The product group is specialized in the development, production, and supply of all types of coupling systems for the dredging industry.

We like to share a selection of couplings we recently delivered to dredge companies worldwide.

Fig. 1 Bowmax bowcoupling ball joint 

Fig. 2 Clampmax hydraulic dredge ball joint 
Fig. 3 Maximus dredge ball joint 
Fig. 4 Maximus dredge ball joint 
Fig. 5 Maximus dredge ball joint 
Fig. 6 Straightmax dredge coupling 
Fig. 7 Turnmax tilting dredge turning gland

Spud Tilting System

Spud Tilting System for a Cutter Suction Dredger currently under construction. A good example of our engineered products which we design and build. The dredger has a total installed power of 7 MW. The spuds have a diameter of 1200 mm and a length of approximately 33 m.

Construction and launching of 2 splithopper barges for HUTA

This movie shows the construction and launching of two split hopper barges for the Huta Group. The vessels were constructed at the MOTAS Global Marine facilities in the United Arabic Emirates and were succesfully launched last month.