Bühler GmbHTOC EventsTBA GroupCleveland Cascades LtdTelestackTMS Awards 2021
  • Van Aalst
  • Coaltrans Asia 2021
  • The Wolfson Centre for Bulk Solids Handling Technology
  • Cleveland Cascades Ltd
  • Vigan
  • Cimbria

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

Ocean Technologies releases 50 titles in Chinese

(Posted on 29/07/21)

Acknowledging the importance of China as a crew-supply nation, Ocean Technologies Group has added an... Read more


New Product Manager increases Superior’s wet processing resources

(Posted on 29/07/21)

Superior Industries, Inc., a U.S.-based manufacturer and global supplier of bulk material processing... Read more


New Bedeschi project for Italcementi

(Posted on 27/07/21)

Bedeschi has signed a new order with Italcementi for the supply of clay handling equipment and other... Read more


Survitec enhances lifeboat inspection solution

(Posted on 26/07/21)

Leading survival technology provider, Survitec, has relaunched its lifeboat inspection solution underpinned... Read more


Cimbria affirms sustainability focus with new Bamboo Chain Conveyor

(Posted on 23/07/21)

Cimbria, a world leader in the field of high-tech solutions for Grain & Seed processing, has strengthened... Read more


Takraf unloader key to Australian terminal’s expansion

(Posted on 20/07/21)

A TAKRAF double jib level luffing ship unloader has arrived at an important deep-water port on the Australian... Read more


RIX Shipmanagement selects KVH’s CaaS programme

(Posted on 15/07/21)

Global dry-cargo and multipurpose ship operator RIX Shipmanagement Ltd has chosen KVH Industries&rsquo... Read more


ABB’s new digital solution helps optimize ship performance

(Posted on 15/07/21)

New online platform, ABB Ability Marine Fleet Intelligence – Advisory, combines the power of cloud... Read more


Mastermind and DESMI sign BWMS agreement

(Posted on 13/07/21)

Mastermind Shipmanagement Ltd., Navkratis Ltd., and DESMI Ocean Guard A/S have announced that Mastermind... Read more


From Rostock to the world

(Posted on 11/07/21)

Since the start of production in 2005, Liebherr-MCCtec Rostock GmbH has manufactured and delivered well... Read more


Port of StocktonCimbriaPort of South LouisianaVan AalstViganThe Wolfson Centre for Bulk Solids Handling Technology
  • Port of Stockton
  • TBA Group
  • Port of South Louisiana
  • TOC Events
  • TMS Awards 2021

Subscribe to our newsletter

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