Sand dredging cutter suction dredger we supply is self-propelled or non self-propelled, portable river cutter suction dredger. The hull uses dismantle and box-like structure, Its dismantle type can be assembly at working place easily and be transported by road, railway and container accordingly, convenient in installation and working place moving from one to another. The power system can be designed to electric system or diesel engine driving system according to customers’ requirements.Equipment on the sand dredging cutter suction dredger are as bellows: traversing device, cutter ladder lifting device, spuds and deck crane. The working process is as following: the cutter head cut the sand and mud underwater to mixture of slurry, then through dredging pump to the pipeline on sand dredging cutter suction dredger; at the end the slurry will be discharged by pipeline on land to the required place.
JMD550 Sand dredging cutter suction dredger |
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Shijiazhuang Dredging Pump |
Dia. Discharge pipe |
550mm |
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Head |
65m |
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Max. Working capacity |
900m3/h |
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Discharge distance |
3000m |
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Dredging depth |
14m |
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1306KW |
Cummins |
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Hydraulic Auxiliary engine |
336KW |
Cummins |
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Emergency Generator |
20KW |
WEICHAI |
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Total power |
1662KW |
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Oil Consumption |
250L/H |
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Hull Dismension |
LOA*W*D |
42m×7.5m×2.0m |
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Hydraulic system |
Hydraulic pump |
VICKERS America(Joint-venture) |
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Hydraulic Motor |
Italy SAI technology(Joint-venture) |
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Valves |
REXROTH Germany(Joint-venture) |
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Operating system |
SIEMENS PLC(Imported from Germany) |
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Ladder winch |
Tension |
120KN |
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Swing winch |
Tension |
120KN |
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Cutter Head |
Crown-like |
Φ1800mm |
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Power |
200KW |
Sand dredging cutter suction dredger can pass low bridge easily, the controlling room and rest room are dismountable. Connecting parts for cabin room and deck are easily dismounted joints,.Construction: it consists of three pontoons: one main pontoon and two side pontoons. The pontoons are connected by the connecting pieces and tightened by high intensity bolts and nuts.
Working site of sand dredging cutter suction dredger: sea, port, lake, and river.Soil conditions: relative hard soil, harden sand, sludge, sea sand, river sand, clay, mud, and so on.
Design
Our sand dredging cutter suction dredger is designed by senior engineer, who have specialized in shipbuilding and dredging work for many years, to guarantee they are well-designed and practical.
Cummins Engine
The sand dredging cutter suction dredger is equipped with world famous powerful Cummins engine, which are famous for its durability, lower oil consumption, standardized accessories and easy maintenance.
Hydraulic system
The most important parts of sand dredging cutter suction dredger and wheel bucket dredger. The hydraulic system requirements are very high and strict; it’s the main artery of the entire dredger. Lateral traction winches, lifting winch and cutter head of the dredgers are driven by hydraulic motors.An integral hydraulic system includes hydraulic oil tanks, hydraulic pump, hydraulic valve manifold, solenoid valve, hydraulic pipes, hydraulic components, electrical actuator and so on.
Detachable Structure
The sand dredging cutter suction dredger is detachable, so it is easy to transport when delivering or moving from one working site to another.
Shijiazhuang Pump
flow passage components use High wear resistant alloy Cr27 to prolonged the pump service life, pump shaft seal use packing seal which is easy to maintain , and anti-friction bearings are from Japanese brand NSK.
Cutter head
For one cutter head, there are 5 blade, 8 teeth equipped on one blade. There is material High chromium. for easy-wearing proof.
Cutter head is driven by hydraulic motor; cutter bearing has lubrication seal-in units.
1. Anchor booms installation
2. Spud carriage
3. Dredger position of 5 anchors.
4. Hydraulic driving for spud flat down(to pass low bridge and transportation on water safely).
5. Make the dredger with extra dredging pump underwater to deepen dredging depth for 20-30m underwater and slurry concentration is more than 30%.
6. Make the dredger with booster station to further the discharge distance.