3 dredging

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105/03/23, Rexroth Hydraudyne B.V.

Rexroth Hydraudyne B.V.

The world of Dredging...




Different market entry levels

Local governments

Civil construction companies

Dredging contractors

Engineering contractors

Shipyards

Suppliers of dredging equipment




Main system packages

Complete hydraulics for hopper dredgers

Suction pipe systems including heave

compensation

Bottomdoor systems

Pumpdrives, cutterdrives, bucket

wheeldrives

Spud hoist systems

Draghead hydraulics

HPU’s, interconnecting piping




Key succes factors

Dedicated quality & performance

Knowledge of dredging processes

Acquainted with dredging contractors

All hydraulic systems in one hand, i.e. project approach

Reliable partner for both the yard and the dredging contractor

Renowned reputation in dredging hydraulics

Worldwide 24 hours service possibility




Rexroth Hydraudyne Drive and Control systems on project basis for:

Trailing suction hopper dredgers

Cutter dredgers

Splitbarges

Stone dump barges

Specials for Floodbarrier

Compacting vessels Lifting vessels Carpet laying vessels

Dredging Drive and Control systems




Trailing suction hopper dredger



Rexroth Hydraudyne B.V.Trailing suction hopper dredgerHydraulic system packages




Gerardus Mercator199518,000 M3

Uilenspiegel200213,700 M3





Volvox Terranova199820,000 M3





Vasco da Gama200044,000 M3





Queen of the Netherlands199823,425 M3





Rotterdam200121,500 M3





DPC, August 2001

The largest dredgers are equipped by Rexroth Hydraudyne...




Customer Dredger name Bun capacity Year

J. de Nul under construction (two off) 11.300 m3 2003J. de Nul under construction (two off) 4.400 m3 2003Boskalis under construction (two off) 16.000 m3 2003Dredging Int. (B) Uilenspiegel 13.700 m3 2002 Boskalis (NL) WD Coastway 4.900 m3 2002 J. de Nul (B) Juan Sebastian Elcano 16.550 m3 2002 J. de Nul (B) Kaishuu 16.550 m3 2002Ballast Nedam (NL) Rotterdam 21.500 m3 2001J. de Nul (B) Vasco Da Gama 44.000 m3 2000Boskalis (NL) WD Waterway 4.900 m3 2000 and 2003Dredging Int. (B) Lange Wapper 13.700 m3 1999Dredging Int. (B) Nile River 17.000 m3 1999Boskalis (NL) Queen of the Netherlands 23.425 m3 1998Van Oord/ ACZ (NL) Volvox Terranova 20.000 m3 1998J. de Nul (B) Alexander von Humboldt 9.000 m3 1998Boskalis (NL) WD Fairway 34.000 m3 1996 and 2003Ballast Nedam (NL) Amsterdam 18.000 m3 1995J. de Nul (B) Gerardus Mercator 18.000 m3 1995Dredging Int. (B) Pearl River 24.124 m3 1994J. de Nul (B) Cristoforo 5.750 m3 1993J. de Nul (B) Colombo 5.750 m3 1993J. de Nul (B) J.F.J. de Nul 11.750 m3 1991Ballast Nedam (NL) Lelystad 10.300 m3 1985Volker Stevin (NL) Geopotes 15 9.000 m3 1984Hochtief (D) Saga 6.000 m3 1984Volker Stevin (NL) Geopotes 14 6.500 m3 1983

Trailing suction hopper dredgerReference list




Fore side winch Ladder winch Anchor boom winch Spud carriage cylinder

- Forces 100-3000 KN- Stroke 6000-9500 mm

Cutter dredger




Cutter dredger




Hydraulic system packages:

Spud hoist system with single or

double cylinders

Spud tilting system Spud carriage system Fore side winch Ladder winch Anchor boom winch Cutter drives Dredgepump drives Suction valves Pressure valves

Cutter dredger




Spud hoist cylinders

Bore up to 450 mm and bigger Stroke up to 4500 mm Pressure up to 320 Bar

Cutter dredgerSpud hoist system




SpudSpud cylinder

Cutter dredgerDetail/scheme spud cylinders



Rexroth Hydraudyne B.V.Cutter dredgerHydraulic scheme



Rexroth Hydraudyne B.V.Cutter DredgerDesign of Spud Carriage and Spud Hoist Cylinder




Customer Name Spud Spudcar. Build Yard

Jan de Nul under construction under construction under construction 2003 IHCBN276 CSD 650 200x2100 180/140x4500 2002 VostaBN278 CSD 500 125x2100 160/110x4500 2002 VostaCottrel Spudponton 125x2100 180/140x4500 2002 Vosta-- Deepdredger none none 2000 BagemaCottrel (USA) Spudponton 125x2100 180/140x4500 2000 VostaBN269/272 (China) CSD 650 200x2100 none 2000 VostaBN273 (Vietnam) CSD 500 125x2100 160/110x4500 2000 VostaBN274 (USA) CSD 650 200x2100 180/140x4500 2000 Vosta-- CZ 150 MUD none none 1999 De GrootMPE Wheeeldredger 2x280x2800 none 1998 IHC SliedrechtMPE -- 2x280x2800 none 1998 IHC Sliedrecht-- CZ 450 160/125x1800 none 1998 De Groot-- CZ 450 160/125x1800 none 1998 De Groot-- CZ 450 160/125x1500 none 1997 De GrootSuez Canal Auth Mashhour -- 360/270x6300 1995 IHCHyundai BN794 + 795 280/240x3200 280/200x6000 1993 LMGHyundai BN789 400x3200 280/200x6000 1991 LMGHalla, Korea BN786 + 787 3200x3200 250/200x600 1991 LMGP.R. China Dust pan dredger -- none 1991 LMGH. Hirdes Nordland 300x3200 220/140x6100 1989 LMGP.R. China BN73 200x250 none 1988 Vos & Zn.India Yamuna 180x1200 180/140x500 1988 Stapel

Cutter DredgerReference list




Split barge




Hydraulic system comprising:

Controls Hydraulic cylinders Hydraulic control valve blocks Hydraulic power unit Interconnecting piping

Split barge




Customer Dredger name Bun capacity Year

Myanmar Port Auth. Thika Dipa 1,000 m3 1998Myanmar Port Auth. Yadana Theinkha 1,000 m3 1998J. de Nul (B) Pinta 3,400 m3 1995J. de Nul (B) Niña 3,400 m3 1995Uruguay Montevideo 3,000 m3 1984Otago Harbour (NZ) Dunedin 600 m3 1983De Holland (NL) Neptune 1,500 m3 1983Ballast Nedam (NL) Liesbosch 1,400 m3 1982Decloedt (B) Vlaanderen XXI 1,500 m3 1981

and many, many others as supplier of hydraulic cylinders with local Rexroth assistance (>500).

Split bargeReference list




Stone dump barge




Company Barge name Hydraulic cylinders Built by:

CH 3 (NL) Cetus 10x360x200x5720 Giessen de Noord

CH 3 (NL) Taurus 10x360x260x5720 Giessen de Noord

Van Oord/ ACZ (NL) Avelingen 8x 180x150x3800 Verolme

Van Oord/ ACZ (NL) Pieter 8x 160x110x1600 Merwede

Van Oord/ ACZ (NL) Frans 8x 280x250x600 Merwede

HAM (NL) Libra 12x 280x200x6000 Boele

Van Oord/ ACZ (NL) Jan Steen 8x 360x280x6905 Verolme

Stone dump bargeReference list




Side Stone-Dumping Vessel for Offshore Leg Protection




D.P. Flexible Fall Pipe Vessel




D.P. Construction Vessel




Side Stone Dumping Vessel

3 dredging

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