

Recently, a South African customer purchased a YG underwater dredging robot for cleaning silt from a local lake. Through the robot’s unmanned operation, the customer completed the lake dredging task in a short time, resulting in significant water quality improvement and greatly enhanced efficiency and safety. The customer was very satisfied with the equipment’s high efficiency, precision, and safe operation and plans to continue using it for cleaning other water bodies and industrial sediments.
Underwater 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 |


Current Needs of South African Customers for Dredging Robots
South African customers’ needs extend beyond lake dredging, including:
- Lakes, ponds, and landscape water bodies: Cleaning accumulated silt, algae deposits, and organic impurities;
- Chemical plant sedimentation tanks and oil tank bottoms: Treating oil spills and industrial sediments;
- Agricultural and aquaculture ponds: Removing bottom sediment, improving water quality and the aquaculture environment.
These needs are highly similar to the pain points faced by other customers: high cost, low efficiency, and significant safety risks associated with manual dredging, and the inability of traditional machinery to access shallow water or confined spaces.
YG’s Solutions
To meet the specific needs of its South African clients, YG offers the following solutions:
- High-Efficiency Unmanned Operation (Robotic Dredge / Sludge Cleaning Robot)
- Fully remote-controlled operation, no personnel required in the water.
- Real-time visual monitoring allows for precise control of dredging depth and scope.
- Safe operation in shallow water, confined spaces, and high-risk environments.
- Powerful Sludge Suction and Pumping System
- High-flow-rate mud pump, suitable for high-concentration sludge and industrial sediments.
- Anti-clogging design allows for continuous operation for 8–12 hours.
- Suitable for dredging lakes, ponds, chemical sedimentation tanks, and the bottom of oil tanks.
- Stable Tracked Chassis (Crawler / Underwater Dredging Robot)
- Adaptable to soft mud, silt, and uneven underwater terrain.
- Corrosion-resistant, rust-proof, and slip-resistant.
- Improved equipment stability ensures continuous operation.
- Environmentally Friendly Design (Environmental Sludge Cleaning) Robot
- Reduce water pollution and avoid secondary pollution
- Safe and efficient, meeting South African and international environmental standards
- Suitable for lake ecological restoration and industrial environmental protection needs


Actual results
- Significantly improved lake sludge removal efficiency, with a sludge removal capacity of 40-60 cubic meters per hour
- Construction time shortened by approximately 50%, significantly reducing labor costs
- Improved safety, no need for manual underwater operations
- Other water body and chemical sedimentation tank cleaning projects proceeded smoothly
A South African customer stated: “YG’s underwater dredging robot completely solved our lake and industrial sediment removal problems. It is highly efficient, safe to operate, and perfectly suited to South Africa’s water management needs.”
FAQ: Questions most concerning to South African customers
Q1: Is this equipment suitable for shallow lakes and small ponds?
A1: Absolutely. The robotic dredging robot’s tracked chassis allows for stable operation in shallow water and confined spaces.
Q2: Can it be used for cleaning sedimentation tanks and oil tank bottoms in chemical plants?
A2: Yes, the equipment uses explosion-proof motors and a fully enclosed electrical control system, enabling safe handling of high-concentration sediments and oil spills.
Q3: Is it complicated to operate? Does it require professional personnel?
A3: No. Remote operation, combined with visual monitoring and training, allows ordinary operators to easily learn how to use it.
Q4: Is the maintenance cost high?
A4: The equipment is durable and has a simple structure. Regular checks of the mud pump and tracks are sufficient, making maintenance costs lower than manual dredging.
Q5: How is its environmental performance?
A5: As an environmental sludge cleaning robot, the equipment effectively reduces secondary pollution and is suitable for ecological restoration and environmental dredging projects.
Underwater Dredging Robot in YG Machinery
The YG underwater dredging robot, through intelligent, unmanned, and efficient operation, has solved the problem of cleaning lake sludge, chemical sedimentation tanks, and oil tank sediments for customers in South Africa.
It is a safe, efficient, and environmentally friendly robotic dredge, suitable for both municipal lake management and industrial sediment cleaning, making it an ideal dredging equipment solution for customers in South Africa and other countries.












