• Underwater stern tube seal replacement on general cargo vessel in Las Palmas

    Underwater stern tube seal replacement on general cargo vessel in Las Palmas

    13/04/2012
    Last month Hydrex mobilized a diver/technician team to a 145-meter general cargo vessel in Las Palmas, Spain when oil was leaking from the stern tube seal assembly of the ship. The team used the Hydrex flexible mobock technique to create a dry working environment around the assembly and replaced three damaged stern tube seals on-site,... Read more
  • Class approved underwater hull repairs in Europe and Africa

    Class approved underwater hull repairs in Europe and Africa

    09/03/2012
    Flying all across the world Hydrex diver/technician teams have carried out numerous underwater insert and doubler plate repairs over the last couple of months. Besides the larger repairs discussed in our previous magazines (and found on our website) a lot of smaller underwater hull repairs were also carried out. Despite the relative size of these... Read more
  • Propeller blade straightening on two bulk carriers in Rotterdam

    Propeller blade straightening on two bulk carriers in Rotterdam

    09/03/2012
    A 190-meter bulker had suffered a bent propeller blade. Hydrex was therefore contacted, and rapidly mobilized a diver/technician team to Rotterdam to perform a detailed underwater inspection and repair of the damage in early January. Later that month a team carried out a similar operation in the same port on a 230-meter vessel. The team... Read more
  • Underwater stern tube seal replacement in Kusadasi and Istanbul (Turkey) and Piraeus (Greece)

    Underwater stern tube seal replacement in Kusadasi and Istanbul (Turkey) and Piraeus (Greece)

    03/02/2012
    When a 204-meter cruise vessel suffered an oil leak in its stern tube seal assembly, Hydrex was asked to carry out a permanent seal replacement. The repair was carried out with the Hydrex flexible mobdock technique and performed in stages to allow the ship to keep the tight schedule of the cruise it was on.... Read more
  • Underwater propeller blade cropping in Rio De Janeiro, Brazil

    Underwater propeller blade cropping in Rio De Janeiro, Brazil

    03/02/2012
    At the end of 2011 Hydrex mobilized a diver/technician team to Rio De Janeiro to carry out a detailed inspection and necessary repair to the damaged port-side propeller blades of a 73-meter supply vessel. A wooden beam had fouled the propeller and had damaged three of the four blades. The affected areas of the blades... Read more
  • On-site bow thruster removal and reinstallation in Rotterdam, Le Havre and Piraeus

    On-site bow thruster removal and reinstallation in Rotterdam, Le Havre and Piraeus

    03/02/2012
    When the bow thruster unit of a 348-meter container vessel needed to be overhauled, Hydrex sent a diver/technician team to the ship to remove the unit on-site and reinstall it again two months later after it had been overhauled. The operation was performed in stages at several locations to allow the vessel to keep to... Read more
  • Navios Sagittarius: behind the scenes at a major salvage operation in Denmark with Tsavliris

    Navios Sagittarius: behind the scenes at a major salvage operation in Denmark with Tsavliris

    22/12/2011
     A world’s first in underwater repair: the insertion of a complete, prefabricated replacement hull section in a badly damaged ship at anchor. On Friday 22nd July, 2011 the Tsavliris Salvage Group urgently dispatched salvage tug Stevns Battler in response to a call for assistance from bulk carrier Navios Sagittarius (GRT: 38,849, DWT: 75,756), laden with... Download .PDF
  • Underwater repairs in the U.A.E. allow ship to sail on after a 150-meter large grounding damage

    Underwater repairs in the U.A.E. allow ship to sail on after a 150-meter large grounding damage

    02/12/2011
    When the shell plating of a 300-meter bulker was indented over a length of 150 meters after a grounding in the Suez Canal, a large crack 1.5 meters long appeared, making it impossible for the vessel to sail any further. To close off the crack and allow the vessel to continue its route, Hydrex sent... Read more
  • Bow thruster reinstallation in Hong Kong keeps ship out of drydock

    Bow thruster reinstallation in Hong Kong keeps ship out of drydock

    02/09/2011
    Recently a Hydrex diver/technician team mobilized to Hong Kong to reinstall a bow thruster on a 300-meter container ship after the unit had been overhauled. After all the preparations had been made, the team lowered the bow thruster unit into the water, positioned it in the thruster tunnel and secured it. Because the vessel was... Read more
  • Hydrex designs tailor-made cofferdam for underwater replacement of boss head bolts of main propeller of vessels in Slovenia

    Hydrex designs tailor-made cofferdam for underwater replacement of boss head bolts of main propeller of vessels in Slovenia

    01/09/2011
    When several of the boss head bolts of the main propeller of a ro/ro vessel were found to be missing, the manufacturer asked Hydrex to engineer a solution that would allow the replacement of these bolts on the vessel and similar vessels without having to go to drydock. In close communication with the manufacturer, the... Read more
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