Royang Dredger Co., Ltd., a reliable dredger machine supplier in China, is located in Qingzhou, Weifang City, Shandong Province. Since 2000, we have been committed to the manufacturing of sea sand dredger machines. Our sea sand dredger machines feature remarkable price competitiveness and have gained extensive market coverage across Africa, the Middle East, Southeast Asia, South America and North America. We sincerely look forward to becoming your long-term cooperative partner in China.
Royang Sea Sand Dredger Machine
The sea sand dredger machines supplied by our company are available in both self-propelled and non-self-propelled types, and they are portable sea sand cutter suction dredgers. The hull adopts a detachable box-like structure; this detachable design allows for easy on-site assembly and convenient transportation by road, railway or container, making both installation and relocation between different work sites more convenient. According to customers’ specific requirements, the power system can be designed as either an electric system or a diesel engine-driven system. The equipment installed on the sea sand dredger machine includes the following: traversing device, cutter ladder lifting device, spuds and deck crane. The working process is as follows: the cutter head cuts underwater sand and mud into a slurry mixture, which is then delivered to the pipeline on the sea sand dredger machine through the dredging pump; finally, the slurry is discharged to the required location on land via the on-board pipeline.
Royang Sea Sand Dredger Machine Technical Specifications
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RYD550 Sea Sand Dredger Machine |
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Shijiazhuang |
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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Diesel Engine |
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 Dimension |
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 |
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Royang Sea Sand Dredger Machine Feature and Application
The sea sand dredger machine can easily pass under low bridges. Both the control room and rest room are detachable, and the connecting parts between the cabin and the deck are easily detachable joints.
Construction: It consists of three pontoons: one main pontoon and two side pontoons. These pontoons are connected by connecting pieces and fastened tightly with high-strength bolts and nuts.
Working sites of the sea sand dredger machine: seas, ports, lakes and rivers.
Soil conditions: It is suitable for relatively hard soil, compacted sand, sludge, sea sand, river sand, clay, mud, and other similar soil types.
Royang Sea Sand Dredger Machine Details
Design
Our sea sand dredger machines are designed by senior engineers with many years of professional experience in shipbuilding and dredging projects, ensuring that each sea sand dredger machine is scientifically designed, practical and fully adaptable to marine working conditions.
Cummins Engine
The sea sand dredger machine is equipped with the world-famous and high-performance Cummins engine, which is widely recognized for its strong durability, low fuel consumption, standardized accessories and easy maintenance.
Hydraulic system
The hydraulic system is one of the most critical components of both the sea sand dredger machine and the wheel bucket dredger, with extremely strict performance requirements—it serves as the main artery that ensures the normal operation of the entire dredger. The lateral traction winches, lifting winch and cutter head of the dredgers are all driven by hydraulic motors.
A complete hydraulic system includes hydraulic oil tanks, hydraulic pumps, hydraulic valve manifolds, solenoid valves, hydraulic pipes, hydraulic components, electrical actuators and other essential parts.
Detachable Structure
The sea sand dredger machine is detachable, which makes it convenient to transport during delivery or when moving from one working site to another, effectively reducing transportation costs and improving work efficiency.
Shijiazhuang Pump
The flow passage components of the pump are made of high-wear-resistant Cr27 alloy, which effectively extends the service life of the pump. The pump shaft seal adopts a packing seal for easy maintenance, and the anti-friction bearings are from the famous Japanese brand NSK.
Cutter head
Each cutter head is equipped with 5 blades, and 8 teeth are installed on each blade. High-chromium material is used to make the cutter head, which has excellent wear resistance to cope with the harsh marine working environment.
The cutter head is driven by a hydraulic motor; the cutter bearing is equipped with a lubrication and sealing unit to prevent sediment intrusion and ensure long-term stable operation.
Royang Sea Sand Dredger Machine Other Can be Customized
The sea sand dredger machine can be customized according to customers’ specific requirements, including the following options:
1. Installation of anchor booms
2. Configuration of spud carriage
3. Installation of 5 anchors for dredger positioning
4. Hydraulic drive for spud lowering (to safely pass under low bridges and ensure safe water transportation)
5. Equipping the dredger with an additional underwater dredging pump to increase the dredging depth to 20-30 meters underwater, with a slurry concentration of more than 30%.
6. Equipping the dredger with a booster station to extend the discharge distance.