

Are you struggling with thick sludge accumulation in lakes or river channels that traditional dredging equipment cannot remove effectively? Many lake bottoms and riverbeds gradually accumulate dense, sticky sludge layers composed of organic waste, silt, and pollutants. This not only reduces water depth and storage capacity, but also leads to deteriorating water quality, blocked flow channels, and even increased flood risks in narrow urban rivers. Traditional dredging methods often rely on excavation, draining water, or manual intervention, which are costly, inefficient, and in many cases impossible for continuous-flow or large water bodies. To address these challenges, YG Machinery lake and river dredging robot has been developed as a modern, fully remote-controlled sludge removal solution designed specifically for complex underwater environments.
Lake and River Dredging Robot Parameters
| Parameter | YG500 | YG600 | YG700 | YG800 | YG900 | YG1200 |
| Robot Dimensions (mm) | 1500*500*650 | 1500*600*650 | 1600*700*650 | 1600*850*700 | 1650*960*750 | 1900*1200*750 |
| Dredging Width (mm) | 500 | 600 | 700 | 800 | 900 | Suitable for large culverts |
| Travel Speed (m/s) | 3–15 | 3–15 | 3–15 | 3–15 | 3–15 | 0–17 m/min |
| Pump Diameter (inch) | 3 | 3 | 4 | 4 | 4 | 4or6 |
| Pump Flow (m³/h) | 100 | 100 | 160 | 160 | 200 | 250 |
| Pump Head (m) | 0–30 | 0–30 | 0–25 | 0–25 | 0–25 | 0–30 (Horizontal: 100–150m) |
| Hydraulic Station Dimensions (mm) | 2200*1200*1700 | 2200*1200*1700 | 2200*1200*1700 | 2200*1200*1700 | 2200*1200*1700 | 2120*1240*1200 |
| Main Motor Power (kW) | 18 | 18 | 22 | 22 | 22 | 45KW (50KW) or Diesel 76KW (123KW) |
| Hydraulic System Pressure (Mpa) | 0–16 | 0–16 | 0–16 | 0–16 | 0–16 | Not specified |
| Particle Size (mm) | 15 | 15 | 40 | 40 | 50 | 0–40 (customizable) |
| Winch Speed (r/min) | 0–10 | 0–10 | 0–10 | 0–10 | 0–10 | 0–10 |
| Pipe Length (m) | 30–50 Optional | 30–50 Optional | 30–50 Optional | 30–50 Optional | 30–50 Optional | 30m/pack, 20kg pressure resistant, optional |
| Control System | Wireless Remote | Wireless Remote | Wireless Remote | Wireless Remote | Wireless Remote | Wireless Remote |
| Lighting System | Underwater LED*2 | Underwater LED*2 | Underwater LED*2 | Underwater LED*2 | Underwater LED*2 | Underwater LED*2 |


A Modern Solution for Lake and River Sludge Removal
The YG dredging robot is not a simple pumping system. It is an integrated underwater cleaning machine combining mechanical breaking, high-pressure flushing, and continuous sludge extraction.
The system is equipped with:
- High-pressure water pump system – generates strong hydraulic force to loosen compacted sediment layers
- High-pressure water gun – precisely targets hardened sludge and breaks it into pumpable material
- Heavy-duty sludge suction pipe – continuously transports sediment out of the water body
- Crawler-type walking system – ensures stable movement on soft mud, sand, and uneven lakebeds
- Full remote control operation system – allows operators to control the machine safely from shore
This combination allows the equipment to perform continuous dredging without draining water, significantly improving efficiency while reducing environmental disturbance.
Why Lake and River Dredging Is Necessary in Real Projects?
1. Loss of Water Storage Capacity Due to Sediment Accumulation
In lakes and reservoirs, sediment deposition gradually reduces effective water depth. This directly affects water storage capacity and long-term usability.
The dredging robot uses a high-pressure flushing system to break down compacted sediment layers, while the suction pipeline removes sludge continuously, effectively restoring the original water volume.
2. Deterioration of Water Quality Caused by Organic Sludge
When organic matter accumulates at the bottom of lakes or slow-flow rivers, it decomposes and releases pollutants, leading to black and odorous water conditions.
The high-pressure water gun system plays a critical role here, as it breaks dense sludge layers that cannot be removed by conventional suction alone, ensuring a more complete cleaning process.
3. Flood Risk and Flow Obstruction in River Channels
In narrow rivers and urban drainage systems, sediment buildup reduces flow capacity and increases the risk of flooding during heavy rainfall.
The crawler-type dredging robot can operate directly in shallow or narrow river sections, ensuring continuous sludge removal and restoring smooth water flow.
4. Safety and Cost Issues in Traditional Dredging
Traditional dredging often requires draining water or deploying divers and heavy machinery, which increases both operational risks and project costs.
With full remote control operation, the YG dredging robot allows operators to complete the entire cleaning process without entering hazardous environments, greatly improving safety and efficiency.
5. Limited Access in Soft or Deep Mud Conditions
Many dredging sites contain extremely soft sediment where conventional excavators or pumps easily get stuck or lose effectiveness.
The crawler system of the dredging robot is specifically designed for such conditions, ensuring stable movement even on deep sludge layers without sinking or losing traction.


Application Scenarios of Lake and River Dredging Robot
The equipment is widely used in a variety of water environments, including:
- Natural lakes and artificial lakes
- River channels and urban drainage systems
- Reservoirs and water conservation projects
- Sedimentation ponds and wastewater treatment basins
- Aquaculture environments such as fish ponds
Among these, the most common and high-demand applications remain lake and river dredging projects where large-scale sediment removal is required.
Key Advantages of YG Dredging Robot
Compared with traditional dredging equipment, YG Machinery provides a more advanced and integrated sludge removal solution designed for real engineering conditions:
✔ Integrated sludge breaking and suction system
High-pressure water gun, hydraulic auger system, and sludge suction pipeline work together to break, loosen, and remove compacted sediment layers efficiently.
✔ Stable crawler mobility system
Adaptable to soft sediment, uneven lakebeds, and shallow or narrow working environments without sinking or losing stability.
✔ Remote-controlled operation
Allows operators to control the entire dredging process safely from shore, reducing manpower risks and improving operational safety.
✔ No need for water drainage
The system works directly in water bodies, enabling continuous dredging without interrupting the natural environment or project operation.
✔ Enhanced deep sludge processing capability
The hydraulic auger system provides additional rotational breaking force, helping to loosen deeper or more compacted sludge layers before suction, significantly improving overall dredging efficiency.
✔ Higher efficiency with lower long-term cost
Reduces project duration, labor requirements, and reliance on multiple pieces of traditional dredging equipment.
Real Project Case: Lake Shore Sludge Removal in Canada
A recent project in Canada involved severe sediment accumulation along a natural lake shoreline, where traditional dredging equipment failed to achieve effective results due to shallow water conditions and highly compacted sludge.
Project challenges:
- Thick sludge layer accumulated along lake edges
- Conventional excavation equipment could not access shallow areas
- Sludge was too dense for standard pumping systems
- High labor and equipment cost for manual removal
Customized YG solution:
We provided a lake dredging robot equipped with:
- High-pressure water pump system for sediment loosening
- High-pressure water gun for breaking hardened sludge layers
- Heavy-duty sludge suction pipeline for continuous removal
- Crawler chassis for stable shoreline movement
- Remote control system for safe and precise operation
Project results:
- Efficient removal of lake shoreline sludge within a short period
- No need for water drainage or project shutdown
- Significantly improved cleaning efficiency compared to traditional methods
- Reduced labor dependency and overall project cost
💬 The customer commented that the addition of the high-pressure water gun system made a decisive difference in breaking compact sludge layers that previously could not be handled effectively.


How to Choose the Right Dredging Robot?
To ensure optimal performance, the following factors should be evaluated before selecting a system:
- Sludge thickness and hardness
- Water depth and working environment
- Whether high-pressure breaking system is required
- Site accessibility (lake, river, shoreline, or narrow channel)
- Required mobility type (crawler or floating platform)
A properly configured system will significantly improve dredging efficiency and return on investment.
Why Choose YG Machinery?
YG Machinery focuses on providing practical, field-proven dredging solutions rather than standard equipment.
We have delivered dredging systems to multiple countries and regions, supporting projects in lake restoration, river cleaning, reservoir maintenance, and industrial sludge removal.
✔ Export experience in 20+ countries
✔ Proven performance in real engineering projects
✔ Customizable high-pressure dredging configurations
✔ Professional technical support and solution design
Get Your Lake & River Dredging Solution Today
If you are currently facing challenges with lake sediment, river blockage, or underwater sludge accumulation, YG Machinery can provide a tailored solution based on your project conditions.
👉 Contact us to receive:
- Professional technical consultation
- Customized dredging system configuration
- Latest quotation and delivery plan
Make dredging faster, safer, and more cost-effective with YG dredging robot technology.












