Royang Dredger Co., Ltd., a reliable dredger machine manufacturer and supplier in China, is situated in Qingzhou, Weifang City, Shandong Province. Since 2000, we have been dedicated to the production of sea sand dredging cutter suction dredgers. Our sea sand dredging cutter suction dredgers boast remarkable price competitiveness and have gained extensive market coverage across Africa, the Middle East, Southeast Asia and South America. We sincerely anticipate becoming your long-term cooperative partner in China.
Royang Sea Sand Dredging Cutter Suction Dredger
The sea sand dredging cutter suction dredgers we produce are available in both self-propelled and non-self-propelled types, featuring a portable design specifically for sea sand dredging operations. The hull adopts a detachable box-like structure, which allows for easy on-site assembly and flexible transportation by road, railway or container. This structural design not only simplifies the installation process but also facilitates the relocation of the equipment between different work sites. According to customers’ specific operational needs, the power system can be configured as either an electric system or a diesel engine-driven system. The key equipment installed on the sea sand dredging cutter suction dredger includes: traversing device, cutter ladder lifting device, spuds and deck crane. Its working process is as follows: the cutter head cuts underwater sand and mud into a slurry mixture, which is then pumped through the dredging pump to the pipeline on the sea sand dredging cutter suction dredger; finally, the slurry is discharged to the required on-land location via the on-board pipeline.
Royang Sea Sand Dredging Cutter Suction Dredger Technical Specifications
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RYD550 Sea Sand Dredging Cutter Suction Dredger |
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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 Dredging Cutter Suction Dredger Feature and Application
This Royang sea sand dredging cutter suction dredger is equipped with horizontal shifting devices, cutter ladder lifting devices, spud devices, deck crane and other supporting equipment. It can also be fitted with anchoring poles and trolley devices based on actual operational demands. In general, the sea sand dredging cutter suction dredger integrates the functions of dredging, conveying and discharging mud or sand. It is capable of generating a certain level of vacuum through a centrifugal pump, ensuring efficient suction and transportation of sea sand slurry.
Royang sea sand dredging cutter suction dredger Details
Design
Our sea sand dredging cutter suction dredgers are designed by senior engineers with years of professional experience in shipbuilding and dredging engineering. This professional design team ensures that each sea sand dredging cutter suction dredger is scientifically structured, practical in use and fully adaptable to the harsh marine working environment.
Cummins Engine
Each sea sand dredging cutter suction dredger is equipped with the world-famous and high-performance Cummins engine. This engine is widely recognized for its strong durability, low fuel consumption, standardized spare parts and simple maintenance, providing stable and reliable power support for the long-term continuous operation of the sea sand dredging cutter suction dredger in marine environments.
Hydraulic system
The hydraulic system is one of the most critical components of both the sea sand dredging cutter suction dredger and the wheel bucket dredger, with extremely strict performance requirements—it serves as the core "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, which guarantees stable, efficient and smooth operation even in complex marine conditions.
A complete hydraulic system is composed of hydraulic oil tanks, hydraulic pumps, hydraulic valve manifolds, solenoid valves, hydraulic pipelines, hydraulic components, electrical actuators and other essential parts, all working together to ensure the stable and efficient operation of the entire hydraulic system under marine working conditions.
Detachable Structure
The sea sand dredging cutter suction dredger adopts a detachable structure, which greatly simplifies transportation during delivery or when moving the equipment from one working site to another. This design effectively reduces transportation costs and improves overall work efficiency, especially for long-distance transportation.
Shijiazhuang Pump
The flow passage components of the pump are made of high-wear-resistant Cr27 alloy, which significantly extends the service life of the pump, even when handling abrasive sea sand. The pump shaft seal uses a packing seal design for easy maintenance, and the anti-friction bearings are sourced from the well-known Japanese brand NSK, ensuring the pump’s stable performance and long service life in marine environments.
Cutter head
Each cutter head of the sea sand dredging cutter suction dredger is equipped with 5 blades, and 8 teeth are installed on each blade. The cutter head is made of high-chromium material, which has excellent wear resistance and can withstand the harsh marine working environment where sea sand is highly abrasive.
The cutter head of the sea sand dredging cutter suction dredger is driven by a hydraulic motor, and the cutter bearing is equipped with a lubrication and sealing unit. This unit effectively prevents sea water and sediment from entering the bearing, ensuring the long-term stable operation of the cutter head.
Royang sea sand dredging cutter suction dredger Facilities
Pipes and Floaters
The sea sand dredging cutter suction dredger is equipped with dedicated pipelines for solid material (sea sand) discharging. These pipelines usually consist of three parts: pipes, floaters and rubber hoses, which are specially designed to adapt to marine working conditions.
There are three types of pipes available for customers to choose from according to the type of solid material (sea sand) to be discharged: steel pipes, HDPE pipes and self-floating pipes, each with different advantages to meet diverse operational needs.
Customers have the option to purchase pipes either independently or from our company. If customers have special requirements for the pipelines (such as corrosion resistance for marine use), we can provide customized pipeline solutions according to their specific needs.
Regarding shipping packaging: the pipelines will be shipped in 40" HQ containers to ensure safe transportation and avoid damage during long-distance shipping.
Kind reminder: customers are advised to purchase additional pipelines as spares to avoid operational delays caused by pipeline damage or wear, especially in the harsh marine environment.