TMS Awards 2023TBA GroupCimbriaViganSailors SocietyVan Aalst
  • Port of South Louisiana
  • Geneva Dry
  • TBA Group
  • Vigan
  • TMS Awards 2023
  • Telestack

Hydrex bow thruster operation for bulker

Hydrex bow thruster operation for bulker

(Posted on 03/12/19)

A Hydrex team removed a bow thruster from a 229-meter bulk carrier. Two weeks later the overhauled unit was reinstalled. Both operations were done during stops in Algeciras, Spain and had to be carried out within the tight schedule available to the charterer.

The vessel could then shift and start cargo operations while Hydrex performed the rest of the operation without any hindrance to the loading schedule. The company’s diver/technicians detached the blades one by one. In the meantime preparations were made in the bow thruster engine room for the removal of the unit so that there would be no ingress of water once it was taken out.

The next step was to secure the gearbox with hoisting equipment. The team then disconnected the unit from the bow thruster engine room and lowered it onto a cradle. This cradle was designed especially for such thruster operations. Simultaneously the team sealed off the tunnel from the bow thruster room. Once the unit was lifted onto the quay it was prepared for transport to the workshop.

Two weeks after Hydrex removed the thruster unit the team once again mobilized to the vessel. They reinstalled the overhauled unit underwater with the use of the Hydrex flexible mobdocks.

These were used to close off the thruster tunnel once the overhauled bow thruster had been brought inside. This technology has been used during thruster operations for over 20 years now and can be shipped anywhere in the world by plane.

All water was then removed from the tunnel. This created drydock like conditions for the divers despite the vessel staying afloat. The team secured the unit and connected it to the engine room. Once this was done the thruster propeller blades were installed one by one. With the thruster blades in position the ship was ready to sail.

By performing the thruster removal and reinstallation underwater, Hydrex made it possible for the owner to keep the vessel out of drydock.

The team worked in shifts around the clock and finished the job within the available time frame. This allowed the ship to sail on schedule, which was a key benefit for the charterer.

Performing a job like this takes a lot of planning. This can only be done successfully by staff who have familiarity with such operations and have the relevant know-how and equipment.

Hydrex can assist shipowners with almost any problem they encounter with their vessel’s thruster. A wide range of underwater repair or maintenance work can be carried out to all types of thrusters. An entire unit can be overhauled, propeller blades or seals can be replaced or repair work on a specific part of a thruster can be performed on-site.

Latest News

Holy Boss Cap more efficient than existing propeller hub caps

(Posted on 22/02/24)

A revolutionary propeller hub vortex cavitation-eliminating boss cap has successfully completed validation... Read more


WinGD and Mitsubishi agree ammonia fuel supply system

(Posted on 22/02/24)

Swiss marine power company WinGD and Japanese shipbuilder and technology developer Mitsubishi Shipbuilding... Read more


Bühler profits improve as food security demands spark ship unloader orders

(Posted on 14/02/24)

Bühler has successfully navigated a complex and volatile global landscape and increased its profitability... Read more


DNV creates European cyber security services powerhouse

(Posted on 14/02/24)

DNV, the global assurance and risk management provider, has created one of Europe’s fastest growing... Read more


New MacGregor self-unloading system to enhance bulk handling efficiency

(Posted on 11/02/24)

MacGregor, part of Cargotec, has launched a new and augmented gravity self-unloading system that will... Read more


Victoria Steamship supports new Rotor Sail design development suited to bulkers

(Posted on 02/02/24)

Victoria Steamship Company Ltd. is set to support Anemoi Marine Technologies Ltd. with the development... Read more


GDI utilises Skygauge drones for remote thickness measurements

(Posted on 01/02/24)

GDI, an award-winning provider of applied technology solutions, has announced that it has now added... Read more


Platform integration redefines port cost management for shipowners and operators

(Posted on 01/02/24)

DIABOS Global Fze, leading port cost management solution, and Veson Nautical (Veson), the global market... Read more


Responsive conveyor belt tracker improves production and safety

(Posted on 31/01/24)

USA based pioneer in belt conveyor accessories, Martin Engineering, has launched the next generation... Read more


ABB to acquire weather routing business

(Posted on 25/01/24)

ABB has announced that it has entered into an agreement to acquire the shipping business of DTN Europe... Read more


Port of StocktonGeneva DryTelestackBühler GmbHPort of South Louisiana
  • Cimbria
  • Sailors Society

Subscribe to our newsletter

Keep up to date with the latest global news in bulk cargo handling and shipping