Port of BelleduneTOC EventsPort of StocktonTelestackSailors SocietyBühler GmbH
  • Cimbria Bulk Equipment A/S
  • The Wolfson Centre for Bulk Solids Handling Technology
  • TOC Events
  • Marine Fuels 360 China
  • Sailors Society
  • 25th Coaltrans Asia

Hydrex restores efficiency to bulker

Hydrex restores efficiency to bulker

(Posted on 04/11/19)

When damage to propellers occurs due to impact with ice and other debris Hydrex can help you, even if the damage is quite extensive.

A ship with bent or cracked propeller blades might experience severe vibrations while sailing. The classification society might demand a repair before the vessel is allowed to continue its voyage. Hydrex teams can restore the propeller’s balance and efficiency, resulting in class approval.

By taking advantage of the in-house developed cold straightening technique, damaged blades can be straightened underwater, allowing the ship to return to commercial operations without the need to drydock.

If straightening is not an option, the affected area of the blade will be cropped. This is done to achieve the greatest possible efficiency. Cropping is carried out using Hydrex propeller blade cutting equipment.

The company’s teams can also carry out any other repair work on the propeller. Examples of this are the removal and reinstallation of entire propeller blades or replacement of the propeller seal ring.

For example, the four blades of a 190-meter bulk carrier’s propeller were severely bent. An on-site solution was needed to restore the propeller’s balance and efficiency. A team was therefore mobilized to C?m Ph?, Vietnam.

The divers started the operation with a detailed survey of the affected propeller blades. The inspection revealed that the four blades were bent over angles of 90 to almost 180 degrees.

The team then used the information acquired during the inspection to calculate and determine the exact measurements needed to modify the trailing edges of the propeller blades.

Next the divers cropped the blades and ground their edges to give them the correct radius. When the cropping was complete, they polished the blades to make sure that any remaining loss of efficiency would be minimal.

Latest News

New Arctic safety guidelines

(Posted on 11/11/19)

Maritime trade between Arctic destinations and the rest of the world is expected to expand and an increasing... Read more


Seanergy reports Q3 results

(Posted on 11/11/19)

Seanergy Maritime Holdings Corp. has announced its financial results for the third quarter and nine... Read more


Affordable communications available to all

(Posted on 11/11/19)

Keeping in touch at sea, even in an emergency, is now easier and affordable – thanks to a new... Read more


IRClass opens Dutch office

(Posted on 11/11/19)

To further strengthen its presence in Europe, leading Classification Society the Indian Register of... Read more


Diana appoints Paliou Deputy CEO

(Posted on 04/11/19)

Diana Shipping Inc., a global shipping company specializing in the ownership of dry bulk vessels, has... Read more


West teams up with Danish law firm

(Posted on 04/11/19)

West of England P&I Club, (“West”) a leading mutual insurer, is strengthening its efforts... Read more


Crew key to greater efficiency

(Posted on 04/11/19)

Ship operators are placing greater recognition on the role crew members play as the key to reaching... Read more


Shipowners trust VIKING on safety

(Posted on 28/10/19)

For the last decade, the ‘VIKING Shipowner Agreement’ has been a widely recognised concept... Read more


Hydrex and Subsea Industries appoint GearConsult

(Posted on 28/10/19)

Hydrex and Subsea Industries have a new representative agent in Norway. GearConsult AS will represent... Read more


IRClass receives Danish RO authorisation

(Posted on 28/10/19)

The Danish Maritime Authority (DMA) has approved the application by the Indian Register of Shipping (... Read more


Cleveland Cascades LtdThe Wolfson Centre for Bulk Solids Handling Technology Cimbria Bulk Equipment A/STBA GroupMarine Fuels 360 ChinaTMS Awards 2019
  • TBA Group
  • Bühler GmbH
  • Vigan
  • Port of Belledune
  • Telestack

Subscribe to our newsletter

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