Video and Image Display of Our Cutter Suction Dredger [Made in China]

• Customization: Available
• Type: Cutter Suction Dredger
• Power Type: Diesel
• Model NO.: 07021806
• Cyclone Type: Hydrocyclone
• Slot Type: CTN
• Customized: Customized
• Condition: New
• Warranty: 365day
• After-sales Service: Lifetime After-Sales Service
• Working Environment: Underwater Operations
• Main Structure: Shipboard
• Output System: Fully Hydraulic
• Company Output: 180 Ships Per Year
• Transport Package: Container Shipping
• Specification: 10m-30m
• Trademark: HHIE
• Origin: China
• Production Capacity: 300cubic Meters Per Hour
• Package Size: 12.00cm * 1.80cm * 1.60cm
• Package Gross Weight: 6000.000kg

Product Description

    Welcome very much to our company's international website. If you need a dredger, please take a look below. We are a professional shipyard from China, and we believe there will be products suitable for you!

Company Profile

 

Research report on dredgers

**1, Introduction**

As an important hydraulic engineering and waterway dredging equipment, dredgers play a crucial role in port construction, river regulation, hydraulic engineering, and land reclamation. With the development of the global economy and the continuous advancement of infrastructure construction, the demand for dredgers is increasing day by day, and their technology is also constantly innovating and improving.

**2, Classification and characteristics of dredgers**

(1) Cutter suction dredger
The cutter suction dredger is currently the most widely used type of dredger. It cuts the underwater soil by rotating the cutter installed at the bow of the ship, and then sucks in the mud through a mud pump and transports it to the designated location through a pipeline. Its advantages are high excavation efficiency, wide applicability, and the ability to operate under different soil conditions.

(2) Rake suction dredger
The rake suction dredger sucks sediment from the bottom of the water through a rake head installed on the bottom of the ship and stores it in the cabin. This type of dredger has the characteristics of strong self navigation ability and flexible operation, and is suitable for large-scale waterway dredging and port dredging projects.

(3) Grab dredger
The grab bucket dredger uses the grab bucket to grab sediment from the bottom of the water, and is suitable for excavating complex geological conditions such as hard soil and rocks.

**3, The working principle of a dredger**

The working principle of different types of dredgers varies, but overall, they all excavate sediment from the bottom of the water through specific excavation devices, and then transport it to a designated location using conveying devices.

Taking the cutter suction dredger as an example, its working process includes: the cutter rotates to cut the soil, forming mud; The mud pump generates negative pressure and sucks the mud into the pump; Transport mud to the shore or barge through pipelines.

**4, Application fields of dredgers**

(1) Port construction and maintenance
The normal operation of the port requires regular dredging of the waterway and dredging of the harbor pool to ensure the safe entry and exit and docking of ships. Dredgers can effectively remove sediment at the bottom of ports, increase water depth and channel width.

(2) River regulation
During the long-term operation of rivers, sedimentation and riverbed elevation may occur, affecting flood control and navigation. Dredgers can dredge rivers, restore their normal flood discharge capacity and navigation conditions.

(3) Water conservancy engineering
In water conservancy projects such as reservoir construction and gate maintenance, dredgers can help clear sediment in the reservoir area and ensure the normal operation of water conservancy facilities.

(4) Land reclamation from the sea
By using dredgers to excavate and transport sediment from the seabed to designated areas, land reclamation can be achieved, and land resources can be expanded.

**5, Technological Development of Dredgers**

(1) Automation and Intelligence
With the advancement of technology, the control system of dredgers is becoming increasingly automated and intelligent. By installing sensors and monitoring equipment, real-time monitoring and automatic control of the dredging process can be achieved, improving operational accuracy and efficiency.

(2) Environmental protection technology
In order to reduce the impact of dredging operations on the environment, the new type of dredger adopts a series of environmental protection technologies, such as closed conveying systems, sediment separation devices, etc., to reduce sediment leakage and pollutant emissions.

(3) Efficient and energy-saving technology
Develop more efficient excavation devices and power systems, reduce energy consumption, and improve the economy and sustainability of dredgers.

**6, The current market situation and development trend of dredgers**

(1) Market situation
At present, the global dredger market is showing a steady growth trend. Asia, Europe, and North America are the main demand regions for dredgers, with countries such as China, the Netherlands, and Belgium having strong capabilities in the manufacturing and use of dredgers.

(2) Development trends
In the future, the dredger market will continue to grow, mainly driven by global infrastructure demand, marine resource development, and increased environmental requirements. At the same time, dredgers will develop towards large-scale, efficient, intelligent, and environmentally friendly directions.

**7, Operation and Maintenance of Dredgers**

(1) Operator training
Operators need to undergo professional training, be familiar with the structure, working principle, and operating procedures of dredgers, and have the ability to respond to unexpected situations.

(2) Daily maintenance
Regularly inspect, maintain, and repair the dredger, including cleaning, lubrication, tightening, and replacing vulnerable parts of the equipment. At the same time, key maintenance should be carried out on the ship's power system, excavation equipment, and conveying system to ensure their normal operation.

(3) Troubleshooting
When the dredger malfunctions, timely diagnosis and troubleshooting should be carried out. Common faults include equipment wear, pipeline blockage, electrical faults, etc., and corresponding maintenance measures need to be taken according to the specific situation.

**8, Case analysis**

Taking the dredging project of a large port as an example, advanced cutter suction dredgers were used for operation. During the construction process, by reasonably planning the operating area, optimizing excavation parameters, and strengthening equipment maintenance, the dredging task of the waterway was successfully completed within the specified time, improving the navigation capacity and operational efficiency of the port.

**9, Conclusion**

As an important engineering equipment, dredgers play an irreplaceable role in fields such as water conservancy, shipping, and marine engineering. With the continuous progress of technology and the growth of market demand, dredgers will continue to innovate and develop, providing stronger support for human infrastructure construction and resource development. However, in the use of dredgers, it is also necessary to fully consider the requirements of environmental protection and sustainable development, and achieve coordinated development of economy, society, and environment.

In summary, dredgers still have broad prospects and important significance in future development. Relevant enterprises and research institutions should continue to increase research and development investment, promote the continuous progress of dredger technology, and make greater contributions to global infrastructure construction and economic development.

China Shandong Haohang Intelligent Equipment Co., Ltd
 
We have been engaged in the manufacturing of dredgers for over 20 years, and we believe that we are the most professional. Our main products include: cutter suction dredgers, chain bucket sand mining ships, water purification ships, water transport ships, gold mining ships, sea sand desalination equipment, etc!
Our profession is extracting sand from water, extracting various minerals, long-distance transportation in water, and cleaning weeds on the water surface!

Chinese made dredgers not only occupy an important position in the domestic market, but also have been widely recognized in the international market. At present, it has been sold to 68 countries and regions worldwide and has achieved success. These dredgers are widely used in deep-sea sand mining, coastal deepwater port channel dredging, reclamation, and coastal maintenance projects, making important contributions to China's marine engineering and infrastructure construction. We can tailor the most cost-effective dredging equipment for you based on your construction environment and work requirements!

 Precautions for operating a dredger
Security aspect
Operators must undergo professional training and be certified to work.
Strictly follow the safety operating procedures and wear personal protective equipment.
Operation shall be stopped in case of severe weather (such as strong wind, waves, rainstorm, etc.).
In terms of environmental protection
Control the diffusion of sediment during the homework process to avoid pollution to the surrounding water area.
Handle waste and oil pollution in accordance with environmental requirements.
Equipment maintenance
Regularly maintain and repair the equipment, and replace vulnerable parts.
Ensure proper lubrication and corrosion protection of the equipment.
Communication and Coordination
Maintain good communication with the onshore command center and other vessels.
Coordinate the work scope and progress with the surrounding vessels.
Emergency Management
Develop emergency plans to respond to sudden malfunctions, accidents, and emergencies.
Equip emergency rescue equipment and supplies.

Detailed Photos

 

          A cutter suction dredger is a dredging tool that uses a rotating cutter to loosen the soil on the riverbed or seabed, mixes it with cement to form mud, and then sucks the mud into the pump body through a suction pipe and sends it to the discharge area. It is mainly used for dredging in inland lake areas and coastal ports, suitable for excavating soil such as sand, sandy loam, and silt. During the construction of the cutter suction dredger, the dredging, transportation, and unloading processes can be completed continuously in one go, resulting in high production efficiency.
The main structure of a cutter suction dredger includes the hull, cutter, suction pipe, pump body, and discharge pipe. The cutter is a key component of a cutter suction dredger, usually installed at the bow or side of the ship. By rotating the cutter, the sediment at the bottom of the water is crushed and mixed with water to form mud. The suction pipe is used to suck mud into the pump body, which transports the mud to the discharge area through the discharge pipe.

 

 
 
 

The construction process of a cutter suction dredger is generally as follows:
1. Construction preparation: including the formulation of construction plans, survey of construction areas, equipment inspection and commissioning, etc., then positioning the ship and accurately positioning the cutter suction dredger in the construction area. According to the wind and flow conditions, set up the windward and upstream anchors in order to stabilize the ship's hull.
2. Lowering the cutter bridge: Lower the cutter bridge to the designated cutter position for excavation.
3. Soil conveying: The soil crushed by the cutter is transported to the designated mud receiving area through a high-power centrifugal mud pump and a discharge pipeline.
4. Construction monitoring: Real time monitoring of excavation depth, instantaneous water level, cross-sectional view of excavation trench or underwater three-dimensional map and other data to ensure construction quality and safety.
5. Moving ship position: According to construction needs, move the ship to the next construction area by retracting and releasing anchor cables and adjusting the position of the winch.
The specific construction process may be adjusted appropriately based on engineering requirements, soil quality, hydrology, and other factors. topic

New type of cutter suction dredger assists in the construction of major water conservancy projects**

Recently, at the construction site of [specific water conservancy project name], a new type of cutter suction dredger is working intensively, playing a crucial role in the smooth progress of the project.

It is understood that this cutter suction dredger adopts the most advanced technology and design, greatly improving its excavation efficiency. It is equipped with a powerful cutter system that can easily handle complex geological conditions, whether it is hard rock or deep silt, it can be quickly cut and sucked in.

The mud transportation distance of the dredger has also been significantly extended, greatly expanding the operating range, reducing the number of ship movements, and improving overall construction efficiency. At the same time, the ship is also equipped with high-precision positioning and monitoring systems, which can grasp the depth, position, and progress of dredging in real time, ensuring the accuracy and quality of construction.

In terms of environmental protection, this cutter suction dredger also has excellent performance. It adopts advanced leak prevention and sewage treatment devices, effectively reducing pollution to the surrounding water during the operation process and maximizing the protection of the ecological environment.

The project leader stated that the commissioning of this new type of cutter suction dredger will enable the dredging work of the project to be completed ahead of schedule, laying a solid foundation for the timely delivery of the entire project. It not only demonstrates China's innovative achievements in the field of dredger technology, but also provides strong technical support for the construction of similar water conservancy projects.

With the continuous advancement of infrastructure construction in our country, it is believed that more advanced cutter suction dredgers will be put into use in the future, contributing to the creation of higher quality water conservancy projects and the improvement of the ecological environment.

Product Parameters

Model	8inches	10 inches	12 inches	14 inches	16 inches	18 inches	20 inches
Hull length	8-12m	12-14m	14-16m	16-18m	18-20m	20-22m	22-24m
Excavation depth	6m-8m	8m-10m	10m-12m	12m-14m	14m-16m	16m-18m	18m-20m
Conveying distance	500m	800m	1000m	1500m	2000m	2500m	3000m
Equipped with power	55KW	132KW	180KW	220KW	260KW	300KW	350KW
Hourly production	200t	260t	300t	350t	400t	450t	500t

     Due to factors such as mining environment, materials, equipment, and demand, the above parameters are for reference only (not as the final standard values). For accurate equipment dimensions and parameters, please contact our professional designer!

Product Description

 

      Display of some parts of the dredger: scraper head, sand pump, gearbox, engine, conveying pipeline, float, etc. The parts equipped by our company are all high-quality products that meet national standards, and can also be equipped with designated brands according to customer requirements!

The following are the daily maintenance and precautions for dredgers:

Daily maintenance:
1. Regularly clean the hull, remove any attached debris, marine organisms, etc., and keep the surface of the hull clean.
2. Inspect and maintain various mechanical components, such as the cutter system, mud pump, engine, etc., to ensure their normal operation. Add lubricating oil and replace vulnerable parts as required.
3. Inspect and maintain the electrical system to ensure the safety and reliability of the circuit and the normal operation of electrical equipment.
4. Check and maintain the hydraulic system to ensure that there are no leaks in the hydraulic components, the hydraulic oil is clean and at the appropriate level.
5. Inspect and maintain the pipelines, valves, etc. of the dredger to prevent leakage and blockage.
6. Regularly inspect and calibrate various instruments and sensors to ensure accurate data.

Notes:
1. Strictly follow the operating procedures to avoid equipment damage or safety accidents caused by misoperation.
2. Pay close attention to the water depth and flow of the construction water area to ensure the safety of the dredging operation.
3. Pay attention to the operation status of the equipment, and if any abnormalities are found, stop the machine for inspection and handling in a timely manner.
4. Provide training and management for crew members, improve safety awareness and operational skills.
5. Ensure that safety equipment such as firefighting and lifesaving are complete and effective on board.
6. Reasonably arrange the operation time and intensity of the dredger to avoid excessive use.
7. Regularly conduct comprehensive inspections and maintenance on the dredger, and record the maintenance status.

                                  Shandong Haohang Intelligent Equipment Co., Ltd.
  was established in 2018, headquartered in Shandong Province, China. It is a professional manufacturer of dredgers. The company has years of industry experience and a professional technical team, committed to providing customers with high-quality dredger products and high-quality after-sales service.
The company's products cover various types and specifications of dredgers, including cutter suction dredgers, rake suction dredgers, chain bucket dredgers, etc. These dredgers are widely used in fields such as waterway dredging, port construction, hydraulic engineering, and marine engineering.
The company focuses on technological innovation and product research and development, continuously introducing advanced technology and equipment to improve product performance and quality. At the same time, the company also has a sound quality management system and after-sales service system to ensure that customers receive timely support and guarantee during use.
The company has customers all over the world and exports its products to multiple countries and regions. The company adheres to the business philosophy of "quality first, customer first", with the aim of integrity, innovation, and win-win, and has established long-term and stable cooperative relationships with customers.

The specific steps for replacing the cutter teeth of a suction dredger may vary depending on the model, design, and working environment of the dredger. But generally speaking, the following are some common steps for replacing the cutter teeth:

1. Preparation: Before replacing the cutter teeth, it is necessary to stop the operation of the dredger and ensure that the relevant equipment is in a safe state. Prepare the necessary tools, such as cranes, wrenches, lifting equipment, etc. Meanwhile, ensure that the new cutter teeth are ready and placed in a convenient location for retrieval.
2. Positioning and fixing the cutter: Use the positioning equipment on the ship (such as steel piles or positioning systems) to fix the cutter in the appropriate position to prevent it from moving during replacement.
3. Disassemble worn cutter teeth: Use a suitable tool (such as a wrench) to loosen the bolts or connectors that secure the cutter teeth. These connectors may vary depending on the design of the dredger. During the disassembly process, careful handling may be necessary to avoid damaging the cutter teeth or other related components. If the cutter teeth are heavy or difficult to manually disassemble, it may be necessary to use a crane or other lifting equipment to assist in disassembly.
4. Remove the worn cutter teeth: Once the connecting piece is loosened, the worn cutter teeth can be carefully removed from the cutter teeth seat. Be careful to avoid collisions or damage to surrounding components.
5. Cleaning the cutter teeth seat: Before installing new cutter teeth, clean any debris, dirt, or residual connecting materials on the cutter teeth seat to ensure good fit and connection.
6. Install new cutter teeth: Place the new cutter teeth on the cutter teeth seat and ensure correct alignment. Then, use bolts or connectors to fix the cutter teeth on the tooth seat and tighten them according to the specified torque or tightening requirements.
7. Inspection and testing: After installation is completed, carefully check whether the installation of the cutter teeth is firm and whether the connecting parts are tight. Some simple tests can be conducted, such as manually turning the cutter to check if the operation of the cutter teeth is normal, and if there are any abnormal sounds or jamming.
8. Resumption of work: After confirming the correct replacement of the cutter teeth, remove the fixing of the cutter and restore the dredger to normal working condition.

Some large cutter suction dredgers may be equipped with specialized cutter teeth disassembly and lifting devices to complete replacement work more safely and efficiently. For example, the crew of the "Tiankun" cutter suction dredger designed a technical scheme for the disassembly and lifting device of the cutter teeth based on the construction characteristics of the cutter and relevant ship design drawings. After analyzing and demonstrating the feasibility of the technical solution using relevant calculation methods, the lifting device was successfully applied to the dredging construction site, solving the problem of dismantling and installing heavy cutter teeth that manpower could not handle, and improving the performance of the ship.

In practical operation, the replacement of cutter teeth usually requires experienced crew members or professional technicians to strictly follow relevant operating procedures and safety precautions to ensure the safety and smoothness of the replacement process. At the same time, regular inspection and maintenance of the wear of the cutter teeth, timely replacement of severely worn cutter teeth, can ensure the dredging efficiency and work quality of the dredger.



Manufacturers teach you how to operate cutter suction dredgers [for export to Southeast Asia]