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Dredger

Dredger Conversion and Upgrade

Photo: Dredge Yard

Dredge Yard, a company specialized in dredging and mining components, equipment and technologies, shares insight  into the upgrading of equipment, modification of dredging system and conversion of existing vessels into dredgers.    Upgrading existing dredger systems is quite practical as it offers reusability and functionality of the old dredger with low investment. Converting an existing vessel into dredger can help in increasing the capacity and capability of the dredging companies in much lesser time with a huge saving in investment.   Dredger modifications are also needed when the dredger supplied may not meet the requirements and slight changes in the parts or systems to make it appropriate for the project requirements.   All types of dredgers can be subject for modifications, varying from replacing a single pump with more efficiency, to the whole suction/discharge system of the dredger, or converting existing barges and vessels into dredgers.   Upgrading dredge pumps  A dredge pump or sand-slurry pump is considered the heart of the dredger and plays the most vital role in the dredger’s efficiency.    Dredge Yard’s senior design engineer , Manish Jangir, said, “Latest tools in the market like CFD and optimum design calculating software have widen the paths of having an efficient pump design for the same old pump without changing any fitting parameters or the connections like the flange.”


Damen Delivers 3 Dredges

Damen Shipyards delivers three Cutter Suction Dredgers to Azerbaijan.   On 24 January 2012 Dutch shipbuilder Damen Shipyards delivered three Cutter Suction Dredgers of its CSD 500 series to the Ministry of Emergency Situations (MES) in Azerbaijan. After delivery, President Ilham Aliyev and Minister of Emergency Situations Kamaladdin Heydarov examined the dredgers at the premises of the Yacht Club in Baku. Damen representatives briefed the President and his party on the functions and


Imtech Receives Contract

Imtech N.V., a technical service provider in Europe, has been commissioned by the Jan De Nul Groep and the wharf Schelde Marine Bouw to automate a number of dredgers and naval vessels. The Imtech Marine & Offshore division acquired the orders, worth a total of $15 million. Commissioned by the Jan De Nul Groep, Imtech is responsible for the on-board integrated dredging automation and instrumentation, navigation and communications for two 11,300 m³ Trailing Suction Hopper Dredgers


Van der Velden Delivers Largest Ever BARKE Rudders

Photo courtesy Marifin Beheer B.V.

The Oceangoing vessels division of Van der Velden Marine Systems has delivered the largest in-house designed BARKE rudders in its history. The two flap-type rudders have been installed onboard the 30,000 m³ trailing suction hopper dredger Congo River. Built for the DEME Group, the trailing suction hopper dredger was launched on 21 January at the IHC Merwede shipyard in Krimpen aan den IJssel (NL). Designed by the Product Design Department of Van der Velden Barkemeyer GmbH


Latest Dredging Solutions by IHC Merwede

Photo credit IHC Merwede

IHC Merwede to showcase its dredging, wet mining, and special purpose ships at forthcoming SMM 2012, Hamburg, Expo. A number of impressive scale models will demonstrate the wide range of innovative vessels engineered and manufactured by IHC Merwede. Vessels such as the custom-built trailing suction hopper dredger CONGO RIVER; the self-propelled cutter suction dredger ATHENA; the pipelaying vessel SEVEN PACIFIC; and the well intervention vessel WELL ENHANCER.


Netherlands Shipyard to Build Ship for China

China order suction dredger: Image credit IHC Merwede

IHC Merwede says it has been successful in securing orders worth € 350 million for a wide range of dredging and offshore vessels and equipment, including a large trailing suction dredger for a Chinese customer. News of the orders as follows: The company's Dredging division has confirmed new contracts for the delivery of a large custom-built trailing suction hopper dredger, with units that will be supplied by IHC Beaver Dredgers as well as a cutter suction dredger training simulator


Vasco De Gama Launched For Jan De Nul

Proceeding 19 months of construction time, the suction dredger Vasco de Gama - with a hold of 33,000 cu. m. — was launched at the Thyssen Nordseewerke construction yard on November 5, 1999. Owned by the Jan de Nul Group, the dredger, which is the largest in the world, will be utilized for international land reclamation projects. Krupp Fordertechnik GmbH supplied the dredging systems and components. Before being passed over to its owner during 2000


SENER develops the Finite Element Model for Dredgers

SENER has been hired by Murueta Shipyard for the creation of a global finite elements model of two sectional dredgers of 1,500 m3 and 2,600 m3, and with shipyard number 293 and 294 respectively and both technologically advanced and  innovative. SENER will also develop the basic engineering of the central body for the nº 294, with the close collaboration of the design office of Astilleros Murueta. The study to be undertaken by SENER is the dredgers structural analysis in


Singapore Dredging at Pioneer Shipyard

  Dredging works are underway at the Pioneer Shipyard off the West Jurong Channel Singpore and will continue until 31 July. According to the Maritime and Port Authority of Singapore Port Marine Notice No. 61 of 2014 dated 5 May 2014, the works are being conducted 24 hours daily - including Sundays & Public Holidays - within the working area bounded by the following co-ordinates (WGS 84 Datum): A) 1° 17.252'N / 103° 39.912'E B) 1° 17.529'N / 103° 40.244'E


CSL to Supply 5 Ships to Shipping Corp, Signs Pact with IHC for Dredgers

Photo: Cochin Shipyard Ltd

 Shipping Corporation of India Ltd (SCI) will buy five vessels from Cochin Shipyard Ltd (CSL) and issue tenders for buying two used liquefied petroleum gas (LPG) carriers as it looks to re-start ship purchases that were frozen after poor financial performance, according to a report in the Live Mint. Both are state-owned entities. CSL has also signed an agreement with Netherlands-based IHC BV to collaborate on constructing dredgers for the Indian market


More than Mega: Diversity Defines the Dredging Industry

1984 - 2012 Singapore / Jurong & Tuas By the 1980s, after a decade of rapid industrialisation, property on Singapore’s mainland was scarce. A solution was found in the Jurong Island reclamation and Tuas extension projects. For 30 years since 1984, dredgers developed new land there. A plan to unite the 7 islets off Singapore’s southwestern coast to form one island was implemented in stages. Started in 1995, Jurong Island was officially opened in autumn 2000, tripling the land surface of the origi

The mantra of recent times has been the worldwide trend to ‘mega’. Mega container ships created the need for mega ports which required mega dredging projects. These in turn demand mega dredging vessels. All this is true but disregards another development: the consolidation of the major


Boskalis Wins Portsmouth Channel Expansion Order

Photo by Royal Boskalis Westminster N.V.

  Royal Boskalis Westminster N.V. (Boskalis) has been awarded a contract from the Defence Infrastructure Organisation of the Ministry of Defence for the capital dredging of the approach channel to the port of Portsmouth in the United Kingdom


Wartsila to Equip Giant Dredger

Mr Roger Holm, Senior Vice President, Wärtsilä Engines (left) and Mr Wang Haihuai, Vice President CCCC (right) at the signing ceremony of the long term strategic cooperation agreement

  A contract has been signed with the Tianjin Dredging Company, part of the China Communication Construction Company (CCCC) and the recently founded Dredging Group, under which Wärtsilä will supply the engines and all essential ancillaries for a new self-propelled cutter dredger


Idreco Delivers Dredger for Hydro-Dam in Congo

ISD-600 (Photo: Idreco)

Idreco (International Dredger Constructions) of the Netherlands informs it has designed, built and installed its second dredger, an ISD 600 with a digging depth of 30 meters, at the Inga Dam in The Democratic Republic of Congo. The dredge has a mixture production and solids production of


ASL Profit Nosedives

Photo by ASL Marine

 Singapore shipbuilding group ASL Marine has posted a sharp drop in net profit for its third quarter as revenues from its shipbuilding, shiprepair and chartering segments fell across the board.   Net profit for the three months to March 31 plummeted 65


Damen Workboat Delivered to Green Marine

Photo: Damen

Marine operations company Green Marine Energy Support Services, based in Stromness, Orkney, took delivery of a Damen Multi Cat 2712 workboat for its offshore wave and tidal activities, the builder announced.   The vessel’s first job was laying the moorings for and towing Green


Dredge Yard, Neptune Shipyards Introduce New Dredger

EURO-DREDGER 450 (Image: Dredge Yard)

Dredge Yard announced it has partnered with Netherlands-based Neptune Shipyards to develop the new cutter suction dredger, EURO DREDGER 450. Iulia Berchiu, Dredge Yard’s Marketing Manager, said, “The dismountable EURO DREDGER 450 is one of their first projects that started in March


Redwise Delivers Two Dredgers to Singapore

TSHD Barito Equator (Photo: Syukur Sahidin, Redwise)

Redwise delivers two dredgers to Singapore – one from the east, one from the west.  The newly built TSHD Barito Equator was delivered by Redwise to Singapore in the first week of May 2015. Built by the Damen Shipyard at Pontianak


Damen Tugs, Dredger for Cooperativa De TrabajosPortuariosLimitada De San Martín

Contract signing

  Argentinian company Cooperativa De TrabajosPortuariosLimitadade San Martín signed a contract forthe delivery of two Damen ASD 2810 tugs and one Cutter Section Dredger 500. The twovessels and dredgerare to be used in the Argentinian terminal region around Rosario on the Paraná


Largest Damen Hopper Dredger Delivered in Borneo

Trailing Suction Hopper Dredger (Photo: Damen)

TSHD 2500 Barito Equator first of its kind built in Indonesia. The delivery in early May of Trailing Suction Hopper Dredger (TSHD) Barito Equator demonstrates how Indonesia’s developing maritime industry is building ever more complex vessels, according to shipbuilder Damen


Damen Building Shellfish Dredger for the Dutch

Noordland YE-118 - 9

  Damen Maaskant Shipyards Stellendam is constructing an innovative razor shell dredger for the Dutch fishing cooperative YE 118 Noordland BV. The 43-metre vessel, sharing the same name as the cooperative, shows how a standard Maaskant design can be modified to meet the ever changing


New Suez Canal Almost 84 Pct Complete

Image: Suez Canal Authority

 Over 216 million cubic meters of water-saturated sand have been removed so far as part of the Suez Canal Development Project, said Head of the Suez Canal Authority Mohab Mamish.   This represents about 84 percent of the total cubic meters that should be dredged as part of the project


Liverpool2 Passes Major Construction Milestone

Piling Photo Peel Ports

  Construction at the new £300 million ($500 million) container terminal being built at the Port of Liverpool has reached an advanced stage. Work to reclaim 12 hectares of land has passed the first stage with further infilling due to take place over the summer.  


Mercator Acquires Two Dredgers

Dredger Banwari Prem. Photo: Mercator Limited

 Mercator Limited announced that it is expanding its dredging business by adding two more Dredgers to its fleet.    Mercator,India's largest Marine and Energy group with businesses in Oil & Gas, Coal, Shipping and Dredging


Boskalis Secures Dredging Work in Africa

Royal Boskalis Westminster N.V. has been awarded three dredging-related contracts on the African subcontinent with a combined value of approximately EUR 75 million.   In Angola, Boskalis has been awarded a contract by Angola LNG Ltd. for dredging activities related to maintaining the access






 
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