Lifetime Quality Guaranteed Dredgers [Exported to Southeast Asia]

• Customization: Available
• Type: Cutter Suction Dredger
• Power Type: Diesel
• Model NO.: 07022226
• 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

Twisted suction dredgers typically use complex and powerful hydraulic systems to drive and control various key components and operations.

The main components of its hydraulic system include hydraulic pumps, hydraulic valves, hydraulic cylinders, hydraulic motors, as well as various hydraulic pipelines and accessories.

Hydraulic pumps provide pressure oil to the system, commonly including gear pumps, vane pumps, and plunger pumps.

Hydraulic valves are used to control the flow direction, pressure, and flow rate of hydraulic oil, achieving precise control of different actions. For example, the directional control valve determines the direction of oil flow, the pressure control valve regulates system pressure, and the flow control valve controls the flow rate.

Hydraulic cylinders are usually used to perform linear movements, such as lifting the cutter and pitching the bridge.

Hydraulic motors convert hydraulic energy into mechanical energy to achieve rotational motion, such as the rotation of the cutter and the drive of the mud pump.

On a cutter suction dredger, the hydraulic system has the following advantages:
1. It can provide large power and torque to meet the demand for strong driving force in dredging operations.
2. The action response is rapid and can achieve fast and accurate operation control.
3. It has good overload protection ability and can automatically unload and protect system components in case of sudden overload situations.

However, the hydraulic system of the cutter suction dredger also faces some challenges, such as hydraulic oil leakage, high oil temperature, complex system maintenance and fault diagnosis, etc. To ensure the reliable operation of the hydraulic system, regular maintenance, oil testing, and cleaning are required, as well as the use of advanced monitoring and diagnostic technologies to promptly identify and solve potential problems.

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!

 

Detailed Photos

The maintenance and upkeep of the hydraulic system of the cutter suction dredger should pay attention to the following matters:

1. Regularly check hydraulic oil
-Extract oil samples at specified time intervals for testing, and check the cleanliness, viscosity, acidity, and other indicators of the oil.
-Pay attention to the color and odor of the oil, and replace it promptly if any abnormalities are found.
-Maintain the hydraulic oil level within the normal range to avoid insufficient or excessive oil.

2. Clean the filtration device
-Regularly clean or replace the oil suction filter, return oil filter, and high-pressure filter to prevent impurities from entering the system.
-Check the pressure difference of the filter and promptly handle it when the pressure difference exceeds the specified value.

3. Check the sealing components
-Regularly inspect the seals of hydraulic cylinders, hydraulic valves, and other components. If there is wear, aging, or damage, they should be replaced in a timely manner.
-Ensure proper installation of seals to prevent leakage.

4. Tighten the connectors
-Check the joints, flanges, and other connecting parts of the hydraulic pipeline to ensure they are securely fastened and not loose.
-For connections that have leaks, they should be re tightened or the sealing gasket replaced.

5. Control oil temperature
-Monitor the oil temperature of the hydraulic system to ensure it is within the normal operating temperature range (usually 30 ºC -60 ºC).
-If the oil temperature is too high, check if the cooling system is working properly and clean the radiator.

6. Cleaning system
-Regularly clean the interior of the hydraulic oil tank to remove impurities and moisture that have settled.
-Ensure that the oil is clean during refueling and avoid introducing pollutants.

7. Lubrication of moving parts
-Regularly lubricate the moving parts of hydraulic motors and cylinders to ensure their normal operation.

8. Testing and debugging
-After maintenance, conduct system testing and debugging to check whether the working performance of each component is normal.
-Adjust parameters such as pressure and flow rate to meet equipment requirements.

9. Follow operating procedures
-Operators should strictly follow the operating procedures to avoid system failures caused by incorrect operations.

10. Record maintenance information
-Record in detail each maintenance work, including maintenance content, replaced parts, and discovered problems, for future reference and analysis.

11. Spare parts management
-Reserve necessary vulnerable parts and commonly used spare parts to ensure timely replacement when needed.

12. Training and professional knowledge
-Provide professional training to maintenance personnel to familiarize them with the principles, structures, and maintenance requirements of hydraulic systems, and improve their maintenance level.

Common hydraulic system failures of cutter suction dredgers include:

1. Hydraulic oil leakage
-It may occur at pipeline connections, seals, valve interfaces, and other locations, causing a decrease in system pressure and affecting normal operation.

2. Unstable system pressure
-Pressure that is too high or too low may be caused by oil pump malfunction, pressure regulating valve misalignment, oil contamination leading to valve sticking, and other reasons.

3. Oil temperature too high
-It may be caused by poor oil circulation, poor heat dissipation, system overload, component wear, etc.

4. Abnormal noise and vibration
-Usually caused by oil pump wear, suction, hydraulic valve failure, and loose pipeline fixation.

5. Slow or weak action of the executing components
-For example, slow expansion and contraction of hydraulic cylinders and insufficient rotation speed of hydraulic motors may be caused by oil leakage, insufficient pressure, component wear, and other reasons.

6. Valve malfunction
-If the valve core gets stuck or the spring inside the valve fails, it can lead to inaccurate or ineffective valve action.

7. Oil pump failure
-This includes oil pump wear and internal component damage, resulting in insufficient or inability to supply oil.

8. Oil contamination
-It can exacerbate component wear, block oil circuits, and cause various malfunctions.

9. Cavitation phenomenon
-When the oil pump suction is insufficient, it is easy to cause cavitation, damage the oil pump, and affect system performance.

10. Accumulator malfunction
-For example, insufficient inflation pressure of the accumulator, damage to the skin bag, etc., can affect the energy storage and release of the system.

          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

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

The following are the specific methods for maintaining and upkeep the hydraulic system of the cutter suction dredger:

1. Regular inspection and cleaning
-At regular intervals, conduct a comprehensive inspection of the entire hydraulic system, including components such as pipelines, valve groups, oil cylinders, and fuel tanks.
-Wipe the surface of dust and oil with a clean cloth to prevent dust from entering the system.

2. Management of hydraulic oil
-Replace hydraulic oil according to the prescribed cycle, usually determined based on working time and oil quality inspection results.
-When adding new oil, use a grade and specification that matches the system requirements, and add it through a filtering device to prevent impurities from mixing in.

3. Filter replacement
-Regularly replace the oil suction filter element, oil return filter element, and high-pressure filter element to ensure the filtration effect.
-When replacing, ensure that the new filter element is installed correctly and sealed well.

4. Oil cylinder maintenance
-Check the surface of the piston rod of the oil cylinder for scratches, wear, and corrosion. If necessary, repair or replace it in a timely manner.
-Clean the exposed part of the oil cylinder and apply an appropriate amount of anti rust oil.

5. Valve group maintenance
-Disassemble the valve assembly for cleaning, removing dirt and impurities from the valve core.
-Check if the springs of the valve group are deformed or fatigued, and replace them in a timely manner if there are any problems.
-Inspect and replace the sealing components of the valve group to ensure sealing performance.

6. Pipeline inspection
-Check for any damage, deformation, or leakage in the pipeline.
-For pipes with wear and tear, timely wrap or replace them.

7. Oil pump maintenance
-Check if the working sound and temperature of the oil pump are normal.
-Regularly disassemble the oil pump and check the wear of internal components, such as gears and side plates.

8. System exhaust
-After system maintenance or oil replacement, perform exhaust operations to remove air from the system and prevent cavitation and unstable operation.

9. Cooling system inspection
-Ensure the normal operation of the hydraulic oil cooling system, check if the radiator is blocked, and if the fan is working properly.

10. Take protective measures
-When not using a dredger, cover and protect the exposed components of the hydraulic system to prevent dust and moisture erosion.

11. Establish and maintain archives
-Record in detail the content, time, and replaced parts of each maintenance and upkeep for future reference and analysis.

      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 maintenance and upkeep frequency of the hydraulic system of the cutter suction dredger depends on various factors, generally speaking:

Daily inspection work should be carried out every day, including checking the hydraulic oil level, oil temperature, whether the system has leaks, and whether the instrument display is normal.

Comprehensive small-scale maintenance, such as checking filters, cleaning components, etc., is recommended to be carried out every 1-2 weeks.

Every 3-6 months, a medium-sized maintenance should be carried out, including checking the sealing of the oil cylinder, the performance of the valve group, the working condition of the oil pump, etc., and replacing some vulnerable parts and filter elements as needed.

Large scale deep maintenance, such as comprehensive disassembly and inspection of oil pumps and valve groups, testing of various performance indicators of hydraulic oil, and comprehensive cleaning and debugging of the system, is usually carried out every 1-2 years.

However, if the working environment of the dredger is harsh (such as high temperature, high humidity, and dust), the working intensity is high, and the hydraulic system load is high, the frequency of maintenance may need to be appropriately increased. On the contrary, if the working environment is good and the load is relatively low, the maintenance interval can be appropriately extended on the basis of the above, but it is still necessary to closely monitor the operation of the system and flexibly adjust the maintenance time according to the actual situation.



Lifetime quality guaranteed dredgers [exported to Southeast Asia]