

If you are searching for suitable equipment for desilting projects, you must care about these points: Can the machine adapt to complex working conditions? Is the desilting efficiency high enough? Is it easy to operate and maintain? YG Machinery’s sludge cleaning machine series is developed to solve these concerns. Covering six models from YG500 to YG1200, they fit lakes, river channels, municipal pipelines, industrial pools, and other working scenarios. In the South African market, the YG sludge cleaning robot has won customers’ trust with reliable performance.
Sludge Cleaning Machine Specifications
| Model | YG500 Electric | YG600 Electric | YG700 Electric | YG800 Electric | YG900 Electric | YG1200 Electric |
| Robot Dimensions | 1500×500×650 mm | 1500×600×650 mm | 1600×700×650 mm | 1600×850×700 mm | 1650×960×750 mm | 1900×1200×750 mm |
| Slurry Pump Model | 3E-100Z170 | 3E-100Z170 | 4E-250ZJ45 | 4E-250ZJ45 | 4E-250ZJ45 | 4C-200Z125 |
| Cleaning Width | 500 mm | 600 mm | 700 mm | 800 mm | 900 mm | 1200 mm |
| Track Speed | 3–15 m/min | 3–15 m/min | 3–15 m/min | 3–15 m/min | 3–15 m/min | 3–15 m/min |
| Robot Weight | — | — | — | — | — | 500 kg |
| Pump Inlet Size | 3 inch | 3 inch | 4 inch | 4 inch | 4 inch | 5 inch |
| Pump Flow Rate | 100 m³/h | 100 m³/h | 160 m³/h | 160 m³/h | 200 m³/h | 200 m³/h |
| Pump Head | 0–30 m | 0–30 m | 0–25 m | 0–25 m | 0–25 m | 0–25 m |
| Hydraulic Station Dimensions | 2200×1200×1700 mm | 2200×1200×1700 mm | 2200×1200×1700 mm | 2200×1200×1700 mm | 2200×1200×1700 mm | 2120×1240×1200 mm |
| Main Motor Power | 18 kW | 18 kW | 22 kW | 22 kW | 22 kW | 45 kW |
| Hydraulic System Pressure | 0–16 MPa | 0–16 MPa | 0–16 MPa | 0–16 MPa | 0–16 MPa | 0–16 MPa |
| Max Particle Size | 15 mm | 15 mm | 40 mm | 40 mm | 50 mm | 60 mm |
| Winch Speed | 0–10 r/min | 0–10 r/min | 0–10 r/min | 0–10 r/min | 0–10 r/min | 0–10 r/min |
| Standard Hydraulic Hose Length | 50 m | 50 m | 50 m | 50 m | 50 m | 50 m |
| Control System | Wireless Remote Control | Wireless Remote Control | Wireless Remote Control | Wireless Remote Control | Wireless Remote Control | Wireless Remote Control |
| Lighting System | 2× Underwater LED Lights | 2× Underwater LED Lights | 2× Underwater LED Lights | 2× Underwater LED Lights | 2× Underwater LED Lights | 2× Underwater LED Lights |

Case 1: Ecological Restoration of Private Lake in South Africa
Client Background: In June 2025, a South African client contacted us via the YG official website. He owned a private lake near his manor. Originally used for irrigation and recreational fishing, the lake suffered from falling water levels and poor water quality after years of silt accumulation, with over 1-meter-thick sludge on the lake bottom.
Construction Challenges: The terrain around the lake was complicated, making access for large desilting equipment impossible. Manual dredging required high costs and long construction periods. The client expected sludge removal without damaging the lake’s ecological environment.
YG Solution: Based on the lake area and sludge thickness provided by the client, we recommended the YG600 sludge cleaning machine. This model features a 600 mm cleaning width and 100 m³/h pumping flow, equipped with a wireless remote control system. Operators can remotely control the robot to work on the lake bottom from the shore.
Communication Process: After viewing our underwater dredging robot on the YG official website, the client contacted the sales team immediately via WhatsApp. Both sides discussed details including lake area, sludge depth, and working duration. YG technical team offered a customized operation plan and arranged a video demonstration. Satisfied with the robot’s remote control function and working efficiency, the client placed an order promptly.
Application Result: After weeks of operation, the client reported that the YG600 sludge cleaning robot ran stably and removed sludge layers over 1 meter thick, significantly clearing the lake water. No personnel needed to work underwater, completely eliminating safety risks. The client highly praised convenient wireless remote operation — operators only need to push the joystick onshore to send the robot to any position on the lake bottom accurately.


Case 2: Municipal Drainage Pipeline Desilting in South African City
Client Background: In the second half of 2025, a city in South Africa suffered long-term troubles from blocked drainage pipelines and urban flooding. Limited budget and manpower prevented the municipal department from regular inspection and cleaning of underground pipelines.
Construction Challenges: Drainage pipelines lie deep underground with narrow space and toxic gases such as hydrogen sulfide. Manual entry brings severe safety hazards. The pipelines contain not only sludge but also plenty of debris, including plastic bags and branches, increasing desilting difficulty.
YG Solution: We recommended the YG800 tank cleaning robot. With dimensions of 1600×850×700 mm and 800 mm cleaning width, it adapts well to municipal drainage pipeline conditions. The robot carries a 4-inch slurry pump delivering a 160 m³/h flow rate, handling particles up to 40 mm. Fitted with a mechanical arm and cutter head, it breaks down massive sludge and grabs debris. The suction system transports sludge and sewage into the sludge tank for centralized treatment. An optional HD camera allows operators to observe pipeline conditions in real time for precise operation.
Communication Process: In-depth technical exchanges were held through video conferences. The municipal department provided pipeline drawings, photos of silted zones, and historical maintenance records. YG technicians analyzed pipeline structure and silt level and produced a detailed desilting plan. After several rounds of online communication to confirm equipment configuration and quotation, the municipal department purchased the YG800 robot.
Application Result: After commissioning, the robot greatly improved desilting efficiency compared with traditional manual work. The high-flow pumping system extracts 160 m³/h sludge mixture. Sludge and waste inside pipelines were removed efficiently, and drainage capacity recovered significantly. Most importantly, no workers needed to enter manholes during operation, completely avoiding poisoning risks from toxic gas. The municipal department commented that YG’s tank cleaning robot makes urban drainage system maintenance safe, efficient, and sustainable.

Maintenance Guide for sludge cleaning machine
To keep your sludge cleaning machine in optimal working condition, follow these maintenance suggestions: After each operation, flush the robot body with clean water to remove sludge residue on tracks, cutter head, and pump body. Check all connections for looseness, and inspect cables and oil hoses for damage.
Weekly Inspection: Check hydraulic oil level and quality; replenish or replace oil as required. Clean the radiator to guarantee effective heat dissipation of the hydraulic system. Check whether the camera lens is clean and wipe off stains in a timely.
Monthly Maintenance: Adjust track tension if necessary. Inspect wear of all sealing components and replace aged sealing rings. Lubricate all moving parts.
Quarterly Overhaul: Fully inspect the hydraulic system and electric control system. Test signal distance and response sensitivity of wireless remote control. Check abrasion conditions of pump impellers.
Contact YG
Whether you need ecological restoration for private lakes, municipal drainage pipeline desilting, or sediment removal for industrial pools and tailings ponds, YG’s sludge cleaning machine provides safe, efficient, and eco-friendly one-stop solutions. Feel free to contact the YG team via the official website or WhatsApp. We will recommend the most suitable model and configuration according to your actual working conditions, helping you solve underwater desilting challenges easily.























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