750mm / 800mm diameter 8500 m3/h water flow output capacity
large hydraulic cutter suction dredger for sale
Cutter Suction Dredger(CSD) is the most widely used engineering ship in dredging works and sand production. The rotary cutter head at the inlet of the suction pipe cuts and loosens the sand/mud layer to form sand-water mixture of a certain consistency. The pump uses its centrifugal force to suck the mixture and then transport it to the depository through the discharge pipe. The digging and transporting are progressing at the same time. CSD is of ideal dredging depth, long discharge distance, high efficiency and low cost.
Most CSDs are barges that are towed to the required areas and are anchored or spudded to the sea bed. Spuds are used, since the loads on the cutter at nozzle length are high and the spuds keep the vessel from moving whilst dredging. These spuds are heavy pike-like structures which can be dropped into the sea bed by the dredger.
Cutter suction dredgers are used to deepen harbour berths or channels and areas where the sea bed is harder than normal and where a suction dredger cannot lift the required spoil. The dredger literally cuts the hard materials and rock away from the sea bed and sucks it through the cutter suction pipe. This is then discharged ashore or to barges for spoil removal.
The suction tube has at its end a hydraulically operated cutting wheel that cuts the hard sea bed into small chunks of rock and spoil. The size of the associated cutters depends on the hardness factor of the sea bed. The cutter units have a high pressure nozzle at their centre and this is used to agitate the cut spoil. The spoil is then normally lifted using an ejector system from the main pump through the suction pipe, so the hard spoil does not go through the moving parts of the pumps.
Detailed characteristic for the 30 inch cutter suction dredger
Item | Specification | Notes | |||||||
Total Length | 70 m | 230 feet | |||||||
Hull Length | 48 m | 157 feet | |||||||
Hull Width | 12 | 39 feet | |||||||
Hull Depth | 3.3 m | 11 feet | |||||||
Mean Draft | 1.6 m | 5.2 feet | |||||||
Dredging Depth | 12 m | 39 feet | |||||||
Discharge Distance | 3000 m | 9842 feet | |||||||
Inboard Dredging Pump
| Model | ------ |
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Water Flow | 8500m3/h |
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Inner diameter of Suction | 800 mm / 32 inch | 31 inch | |||||||
Inner diameter of Discharge | 750 mm / 30 inch | 30 inch | |||||||
Lift head | 75 m | 246 feet | |||||||
Main Engine | Brand | Niigata Engine | Produce (year):2000 | ||||||
Model | 8MG28HX | Power Pump | |||||||
Power | 2427 750RPM | ||||||||
Amount | 1 unit | ||||||||
Auxiliary Engines for hydraulic system and generators | Brand | Caterpillar | Cummins | Shanghai | -------- | ||||
Model | C18 Acert | NTA855 | 6135D | 12V280ZC/D | |||||
Power | 600 PS | 250 PS | 300 PS | 500kw/1000rpm | |||||
Amount | 1 unit | 1 | 1 | 1 unit | |||||
Harbor Engine Generator Set
| Brand | Shanghai | When Parked For the whole dredger Power source
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Model | 6135 | ||||||||
Power | 75KW | ||||||||
Amount | 1 | ||||||||
Cutter Head | Cutter Diameter | 2560mm (8.4 feet) | High manganese steel material | ||||||
Input/Output Cutter Power | 1050kw/840kw |
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Cutter blade | 5 Pieces | Cutter teeth replaced Easily | |||||||
Cutter Speed | 0-36 RPM | International Standard | |||||||
Cutter Drivers | Hydraulic Motor | ||||||||
Bridge Hydraulic Winch | 1 set | Rated pull force: 500KN, speed: 0~2- m/min., with 1 set full closed blocks | Electromotor Drivers | ||||||
Crab Winch | 2 sets | Rated pull force: 450KN, speed: 0~2- m/min., with 2 sets full closed cross blocks | Electromotor Drivers | ||||||
Spud (2 sets) | Spud Diameter : 1200 mm |
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Spud Length : 30m/set | |||||||||
Cantilever Crane | 50 mt SWL: 80KNx8m Power:180kw | ||||||||
Operation System |
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Spray PaintingTechnology | 3 Layer Spray Painting Prevent Corrosion | ||||||||
Fire Fighting Equipment | Fire extinguishers, fire hydrant | ||||||||
Life-saving equipment | Life jackets, life buoy, life raft | ||||||||
Communication Equipment | VHF, Walkie-talkie | ||||||||
Monitoring equipment | Remote Monitoring | ||||||||
Operation Room | PLC Console, Special Seat for driver and air conditioning Etc. | ||||||||
Other Configuration | beds for 16 seaman (Acoustic Treatment),Kitchen, Bathroom,etc. | ||||||||
Auxiliary equipment |
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Hydraulic Pump Station:
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Swiches and movement display; Winch’s speed adjustment device System hydraulic display Hydraulic system alarm GPS navigation system VHF FM Marine Mobile Radio Navigation light equipment 220V 50HZ and 24V (double complete water tide 55c IP55) | ||||||||
Control Main Engines and Alarm Sysem: | - Control dredger (auto - manual) system - Steering gear control (auto - manual) system with emergency - Fire alarm system (auto -test manual) | ||||||||
Tanks: | a- Fuel oil tanks b- Fresh water tanks c-Lubrication oil tanks d- Ballast tanks e- Dirty oil tanks | ||||||||
Warranty: | 12 Months from date of arrival in destination port Free spare parts listed below: Bring accessories | ||||||||
Shipment Time | 4 months after receipt of down payment and payment guarantee.
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