40m Cutter Suction Dredger

Listing ID - 5731
Description	40m Cutter Suction Dredger
Length	42.0m (137ft 9.5in)
Beam	7.5m (24ft 7.2in)
Draft	2.0m (6ft 6.7in)
Note	Engine: Cummins KTA50-M2,
Broker	Georgi Savchev georgi.savchev@seaboatsbrokers.com +359 88 7228674
Price	POA
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Technical Specifications of RYD550 Cutter Suction Dredger

KEY FEATURES

- Proven design products with reliable quality and excellent performance;

- Cummins main diesel engine and auxiliary diesel engine equipped, providing sufficient and reliable power with lower overall fuel consumptions;

- Siemens PLC control system;

- Rexroth hydraulic components;

- Jotun marine painting system;

- A dredge pump , provided by first-class Chinese manufacturer, wear resistance material high chrome alloy KmTBCr27, optimized design refers to IHC type;

- Pontoon type spud carriage system with high efficiency, reliable and durable performance;

- Strengthen Structure of cutter ladder, heavier weight for good cutting performance;

- Thickened Suction & Discharging Piping with wear-resistant alloy liner inside for extending service life of piping line;

- Humanization design for operator and crew;

- Convenient dismantle and assembly, transportable by road, railway or sea;

- always available for global after-sales service and express Supply of spare parts & accessories.

GENERAL DESCRIPTION

This vessel is designed and constructed as a dismantle type non-self-propelled cutter suction dredger, suitable for dredging operation of soil type II~IV, including fine sand, clay, silt, coarse sand, etc., in inland water and coastal area.

The hull of dredger is composed by five pontoons, including one main pontoon and four side pontoons. The pontoons are full steel welding and are combined together by

specially designed connecting pieces for convenient dismantle and assembly.

Pontoon type spud carriage system and anchor boom system could be equipped as optional items.

All main parts of the dredger can be dismantled easily for transportation by sea, railway or road.

The vessel is equipped with one main diesel engine driving main dredge pump, one auxiliary diesel engine driving all the hydraulic machineries . One harbor generator is

equipped.

The design and layout of machinery, electrical and automation system, ventilation and air condition to be suitable for following environmental condition:

- Ambient air temperature 50℃

- Air temperature in engine room 55 ℃

- River / sea water temperature 35 ℃

- Relative, humidity max / non condensing 75%

- Barometric pressure 760mm Hg

PRINCIPLES PARTICULARS

Length of all: 42m(with spud carriage pontoon)

Length over pontoons: 33m(with spud carriage pontoon)

Breadth: 7.5m

Depth: 2.0m

Draft: Max. 1.5m

Dredging depth: Min.: 1.5m; Max.: 14m

Dredging wideth(35° wing angle, each side): 42m at max. Dredging depth45m at min. Dredging depth

Inner Dia. of suction/Discharge pipe: 600mm/550mm

Dredging pump output capacity：4000m3/h(water flow)

Discharging length: 2500m

Main diesel engine: Cummins KTA50-M2, 1342KW@1800rpm

Auxiliary diesel engine: Cummins NTA855-M, 336KW@1800rpm

Harbor generator: Cummins , 30KW@1500rpm

Total installed power: 1708KW

Specific fuel consumption: 256L/H

Cutter: Crown type multi-purpose cutter head, shaftpower 200kw

Spuds: 2 sets, length 18m,φ560mm, collapsible

Spud carriage system: Built-in type, with travelling stoke 4.0m

Anchor Boom (Optional item): Length 14m

Fuel tank capacity: 50m3

The output capacity and discharging length figures are based on the dredging material of the nature of clay / silt/ fine sand, the maximum available power on the dredge pump shaft and in situation of 5.0m elevation height at end of discharge pipe; in actual practice, the the material to be dredged and local working conditions must be considered.

CLASSIFICATION & REGULATIONS & STANDARD

The vessel is to be designed and constructed in accordance with the rules and regulations as below except specially described hereinafter and/or mutual agreed by Owner and Builder.

- China MSA “Regulations for Statutory Inspection of Inland Ships 2011” and amendment in 2015, 2016, 2018;

- CCS “Steel Inland Ships Construction Regulations 2016”

- Chinese National Standards（GB）

- China Shipbuilding Quality Standard (CSQS) Chinese industrial standards (GB, CB, YB, JB, CSQS), Builder’s standards and ISO standards are to be applied to the construction and design of the vessel except the fittings specially described hereinafter

HULL STRUCTURE

Steel for the main deck, bottom, side and fore & aft shell shall be Class approved marine steel plates.

All steel plate surfaces shall be shot blasted to SA 2.5 and primed before fabrication with one coat of compatible shop primer.

All pontoons are single hull structure. The thickness of steel plates of the pontoons shall be as below. The sizes of all scantling of frame, stiffener, girder, support, etc., are to be designed and constructed as per Class requirements.

Main pontoon

Dimension of main pontoon(L*B*D): 15m*3.5m*2.0m

Thickness of deck plate: 10mm

Thickness of bottom plate: 10mm

Thickness of side plate: 10mm

Thickness of front plate: 16mm

Thickness of stern plate: 25mm

Side pontoons

Dimension of side pontoons(L*B*D): 23m*2.0m*2.0m(each side)

Thickness of deck plate: 8mm

Thickness of bottom plate: 8mm

Thickness of side plate: 8mm

Thickness of front plate: 8mm

Thickness of stern plate: 8mm

Spud carriage pontoons

Dimension of side pontoons(L*B*D):8m*2.0m*2.0m(each side)

Thickness of deck plate: 8mm

Thickness of bottom plate: 8mm

Thickness of side plate: 8mm

Thickness of front plate: 12mm

Thickness of stern plate: 12mm

MAIN EQUIPMENT INSTALLATION

Main Diesel Engine

Manufacturer: Cummins

Model: KTA50-M2

Type: V-16 cylinder, 4-Stroke, Water-cooled

Intake way: Turbocharged& Inter-cooled

Cylinders-Bore*Stroke: 16-159mm*159mm

Displacement: 50L

Continuous power/speed: 1306kw/1800rpm

Specific fuel consumption: 216.3G/kw.hr

Rotation direction: Anticlockwise(see from power output end)

Starting way: Electrical

Cooling system: Internal and external water coolingcirculation systems, equipped with anintercooler and a cylinder cooler: Theexpansion water tanks to make up internalcooling water seawater pump shall supply cooling water

Seawater pump shall supply cooling water for external circulation system.

Auxiliary Diesel Engine

Manufacturer: Cummins

Model: NTA855-M

Type: In-line 6 cylinder, 4-Stroke, Water-cooled

Intake way: Turbocharged & Inter-cooled

Cylinders-Bore*Stroke: 6-159mm*159mm

Displacement: 14L

Continuous power/speed: 336kw/1800rpm

Specific fuel consumption: 205.8g/kwh

Rotation direction: Anticlockwise((see from power output end))

Starting way: Electrical

Cooling system: Internal and external water cooling circulationsystems, equipped with an intercooler and acylinder cooler: The expansion water tanks tomake up internal cooling water seawaterpump shall supply cooling waterSeawater pump shall supply cooling waterfor external circulation system;

HYDRAULIC GEARBOX & COUPLING

The Hydraulic Gearbox & Coupling is combined with the dredge pump, as below.

Model: JL360

Pressure: 1.5-1.65Mpa

Application factor: 3.5:1

Cooling: Water cooling

Control System: Electrical (local and remote)

Dredge Pump

Dredge pump is a single wall centrifugal pump, which is optimized design for dredging

operation. The impeller is fitted on the shaft by trapezoid thread directly machine on the shaft end.

The shaft sealing is a water-cooled sealing that can be replaced easily.

The impeller is optimized design with double curved vanes for high efficiency and long wear life.

The pump casing has a shape of a volute designed of a high efficiency and wear life optimized tested in laboratory and onboard of dredgers.

The wear-resisting alloy steel shall be adopted for pump shell, the hardness not less than 48HRC.

The hardness of other wear-resisting components, such as impeller, shaft,etc,shall be not less than 60H

Model: 4000-70

Output capacity(Water flow): 4000m3/h

Head: 70m

Efficiency: 82%

NPSHr: <4m

Inner Dia. Of Inlet/outlet: 600mm/450mm

Ball passage: 220mm

CUTTER HEAD

Type: Crown Type Cutter Head

External Dia.: Φ1800mm

Blades: 5 pieces, material: ZG35SiMn

Teeth: Replaceable,total40 teeth, material:ZG30CrMoNi

Speed: 10/20/30 rpm

Shaft Power: 200kw

Nos.: 1 set

LADDER WINCH

Type: Hydraulic driven type, built-in reductiongearbox

Line pull-second Layer: 120KN

Line speed-second: 0-20m/min

Dia. & length of steel: Φ24mm/140m

Control: Remote control; disc brake to beautomatically activated in case of pressuredrop

Nos.: 1 set

SWING WINCH

Type: Hydraulic driven type, built-in reductiongearbox

Line pull-second: 120KN

Line speed-second: 0-20m/min

Dia. & length of steel: Φ24mm/130m

Control: Remote control in adjustable speed; discbrake to be automatically activated case ofpressure drop

Nos.: 2 sets

ANCHOR BOOM SYSTEM (optional item)

Type: Hydraulic driven type, built-in reductiongearbox

Line Pull-First Layer: 50KN

Line speed-second: 0-20m/min

Dia. & length of steel: Φ20mm/100m

Control: Remote control in adjustable speed; discbrake to be automatically activated case of pressure drop

Nos.: 2 sets

SPUD HOISTING CYLINDER

Pull: 300KN

Hydraulic cylinder: Φ160mm

Stroke: 2.5m

Nos.: 2 sets

SPUD CARRIAGE

Type: Built in type combined with main pontoon

Travelling stroke: 4.0m

Hydraulic cylinder: Pull: 230KN

Nos.: 1 set

DECK CRANE

Lifting weight: 50KN

Outreach: 2.5m

Nos.: 1 set

DECK OUTFITTING

Anchor: 2 sets, 500kg each

Bitt : 6 sets (3 sets each side)

HYDRAULIC PUMP

Maker: VICKERS

Working pressure: 16Mpa

Nos.: 2sets

SOLENOID VALVE

Maker: Rexroth

Working pressure: 16Mpa

Nos.:

Ladder winch control valve block, 1 set

Swing winch control valve block, 1 set

Cutter control valve block, 1 set

Spud carriage control valve block, 1 set

Anchor boom winch control valve block, 1 set

Proportional control valve block, 1 set

PLC CONTROL SYSTEM

Manufacturer: SIMENS

Nos.: 1 set

Functions:

Power supply

Winch operating joystick

Dredge pump clutch in/clutch out

Winches speed “normal/high”

Cutter head speed adjustment

Alarm panel

Main diesel engine emergency stop

Auxiliary diesel engine emergency stop

Switch on/off for lighting

Hydraulic oil pressure measuring

Hydraulic control valves

Dredge pump pressure indicator

Dredger pump vacuum indicator

Gland water pump pressure indicator

Ladder depth indicator Etc.

PIPING SYSTEM

Suction pipe: ID 600mm steel pipe,

Discharge Pipe: ID550mm steel pipe

Connection suction hose: ID 600mm, Length-2000mm, material highlyabrasion-resistant rubber

S.W.Pipe: Seamless steel, hot dip galv. Sch 80

F.W.Pipe: Seamless steel, hot dip galv. Sch 40

F.O.Pipe: Seamless steel, Sch 40; Sch80 for expose toweather deck.

Hydraulic Pipe: Seamless steel, Sch 80, square flange connection

ELECTRICAL SYSTEM

One alternator driven by auxiliary diesel engine provide the electrical power to all electrical consumers, including motors, charger, lighting, etc. An emergency/harbor generator shall provide electrical power in emergency or harbor condition.

Alternator&harbor generator: AC380V,50Hz,3 ph

Power equipment: AC220V,50Hz, 3 ph

Battery group: DC24V

Main lighting: 220V,50Hz,1 ph

Emergency lighting: DC 24V

Control and monitoring: 220V,50Hz,1 ph or DC24V

Intercommunication system: 220V,50Hz,1 ph or DC24V

Electrical motor: 380V star-delta starter

Alternator: AC 230V/380V, 50Hz, 3 ph, IP23, 30kw

Harbor generator: AC 230V/380V, 50Hz, 3 ph, IP23, 50kw

Batteries: DC12V, 960Ah

Charger: DC24V, 36A

Main switch board: Consists of shaft generator panel, groupstarter panel, consumer panel, shoreconnection panel, etc.; interlock function

Charge&discharge: To be fitted

Electrical cable: EPR insulated PVC sheathed steel braided orequivalent

Lighting: AC 220V, 50Hz, 1 ph, fluorescent or LED light;DC 24V for emergency lighting

Socket outlet: AC 220V, 50HZ, 1 ph; in exposed spaces areto be water-tight type.

Signal light: Be fed from both AC220V and DC24V, CXHseries

NAVIGATION &COMMUNICATION EQUIPMENT

VHF-: 1 set

Depth meter: 1 set

Public address: 1 set

Electric horn: 1 set

Lights: 2 flood lights on cabin roof

1 flood light at spud area;

Sufficient lighting to walkway of main deck

Sufficient lighting in engine room and cabines;

Operation cabin: Adjustable chair, large-scale windows, file cabinet

Storage room: Shelves

Galley&toilet: One set

Life-saving& fire-fighting: Life jackets, life buoy, portable fireextinguisher, fire axes

Tools&accessories:

Engine tools: 1 kit

Spanner, wrench, hammer, ect; 1 kit

Pipe pincer: 1 kit

Screw driver: 1 kit

Chain block: 1 set

Electronic multimeter: 1 set

LED torch: 2 pcs

Spare lighting bulb: 6pcs

Grease gun: 1 pc

Grease irrigator: 10 pcs

Seal ring: 1 pc

Generator belt: 3 pcs

Seawater pump belt: 2 pcs

Electrical welding machine: 1 set

Welding rod: 1 box

Welding helmet and glasses: 1 set

Lifting jack and crowbar: 1 set

Fuse: 1 kit

Fire extinguisher: 2 pcs

Life jacket: 4 pcs

Life buoy: 4 pcs

The details of all vessels are offered in good faith but we cannot guarantee or warrant the accuracy of this information nor warrant the condition of the vessel. Any buyer should instruct their agents, or their surveyors, to investigate such details as the buyer desires validated. This vessel is offered subject to sale, price change, location or withdrawal without notice.

40m Cutter Suction Dredger

Listing ID - 5731