COB0136

Detailed Information

General

Built Year & Place	2024 / NETHERLANDS
Hull Material	Steel
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Class Society and Notation
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Principle Dimensions

Length Overall (m)	22
Length Between Prep. (m)
Breadth (m)	13.6
Depth (m)
Draft (m)	4.23
NT (tons)
GT (tons)
DWT (tons)

Machinery & Propulsion

Total Power Output (BHP)	285
Main Engine(s)	1 x Volvo Penta
Main Propulsion System
Auxiliary engine(s)
Propellers
Speed Maximum (knots)
Speed Cruising (knots)

Cargo & Tank Capacities

Deck Cargo (tons)
Deck Area (m2)
Deck Load (tons/m2)
Fuel Tanks Capacity (m3)	4
Fresh Water Tanks Capacity (m3)
Ballast Tanks Capacity (m3)

Additional Information

New cutter suction dredger CSD250 type
Dredging depth 8.00 m
Abt. 1200 running hours
800 m HPDE hose
100 m rubber hose
floaters for hose etc.

The dredger has been used for silt
Weight is abt 32 ts and can easily be lifted on deck on a RAL container vessel going to Iceland and Denmark

Dismountable 3 pontoons with heavy duty coupling system
Working and auxiliary spud
Inboard, high wear resistant dredge pump
Main diesel engine for driving hydraulic power unit
Hydraulic motor driven dredge pump
Cutter head driven by hydraulic motor
Cutter head with replaceable teeth
Inspection piece in front of dredge pump for easy inspection and cleaning
The dredger swings to both sides by side wire
Hydraulic operated winches for hoisting the ladder and swinging of the dredge
Two heavy duty spuds with hoisting eye and locking points, lifted by hydraulic cylinders
The dredger can be towed in water by sheltered, coast, or inland waters
Spacious, ventilated cabin is located on raised platform for good over view of all directions. Cabin has air conditioning.

Main Dimensions
Length over all (approx.) incl. cutter ladder 20.5 m
Length over pontoon (assembled) 13.6 m
Breadth over pontoon (assembled) 4.23 m
Depth main pontoon 2.2 m
Depth side pontoon 1.25 m
Design draught 0.8 m
Dredging depth @ 45 degrees ladder 8.0 m
Suction pipe nominal diameter 250 mm
Discharge pipe nominal diameter 250 mm
Cutter power 35 kW
Cutter speed 0-40 rpm
Total diesel engine power 210 kW

Main Pontoon
Length 9.0 m
Breadth 2.25 m
Depth 2.2 m
Side Pontoons
Length 11.5 m
Breadth 1.50 m
Depth 1.25 m
Control Cabin
Floor area 3.0 m2
Ventilation Ventilation fan
Climate control Room heater
Lights 1x interior light; 2x flood light
Additional Screen wipers
Instrumentation Dredging depth indicator

Technical Data
Cutter
Make Dredge Yard
Type Multi-purpose
Power 35 kW
Speed 0-40 rpm
Cutting system Usable: narrow teeth, pick-point teeth or chisel teeth
Spuds
Length 10.1 m
Diameter 324 mm
Approx. Weight 1.0 ton
Spud Hoisting
Ram Force 45 kN
Cylinder stroke 1.25 m
Ladder Hoisting Winch
Wire Pull 40 kN
Hauling Speed 0-20 m/min
Wire diameter 13 mm
Swing Winches
Wire Pull 40 kN
Hauling Speed 0-20 m/min
Wire diameter 13 mm
Swing Anchors
Weight 230 kg
Dredge Pump
Make Dredge Yard
Type DYP250-250
Bearing block Two spherical roller, Roller bearing; one thrust bearing
Wear material White iron-high wear resistant
Seal Mechanical face seal
Dredge pump motor power 140 kW

Engine
Make Volvo or Equiv.
Power 210 kW
Tank Capacities
Fuel Oil (approx.) 4.0 m3
Hydraulic Oil (approx.) 1.0 m3
Ballast Tank 4 tanks
Electrical Installation
Main alternator
Voltage 24v
Capacity 60Ah
Batteries
Voltage 24v
Capacity 400Ah

Propulsion for simple manoeuvring in sheltered water
Type Steerable propeller
Numbers 2
Power 37 kw
Trust force 4.4 kN
Direction of vessel Forward; reverse; left; right

Hydraulic Installations
Hydraulic system drives:
Cutter head motor
Dredge pump motor
Ladder Hoisting winches
Side winches
Spud hoisting cylinders
Consists mainly of:
Cutter motor
All winch motors
Hydraulic oil tank
Boost valve
Return Filter
Oil Cooler
Pressure valves
Cutter reverse
Cutter valve
Winch valve
Cylinder valves
Solenoids

Climatic Conditions
Ambient Temperature Min -10 °C, Max +50 °C
Machinery Room Max +55 °C
Sea Water Max +32 °C
Relative Air Humidity Max 70% @ 35 °C
Atmosphere Salty and high humidity

All details are given in good faith and are believed to be accurate but no warranty of accuracy or completeness or suitability for purpose is either stated or implied. Prices are subject to change without notice.

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