Traditional underwater silt removal continues to bring persistent challenges for private engineering contractors and facility operators. Manual diving cleaning exposes staff to toxic sludge, underwater hazards and unpredictable operating risks. Many operators seek automated alternatives to cut labor costs and improve operational safety. A sewer cleaning robot delivers remote-controlled underwater sludge extraction, eliminating the requirement for workers to enter submerged environments.
This article analyzes two independent practical projects deploying the sewer cleaning robot. We focus on authentic client demands, customized equipment matching, on-site operation feedback and practical lessons drawn from fieldwork. You can obtain intuitive references if you plan to deploy similar automated dredging equipment.
Sewer Cleaning Robot Technical Specifications
| Model | YG-500 | YG-600 | YG-700 | YG-800 | YG-900 | YG-1200 |
| Robot dimensions | 1500*500*650mm | 1500*600*650mm | 1600*700*650mm | 1600*850*700mm | 1650*960*750mm | 1900*1200*750mm |
| Dredging width | 500mm | 600mm | 700mm | 800mm | 900mm | 1200mm |
| Track travel speed | 3-15m/s | 3-15m/s | 3-15m/s | 3-15m/s | 3-15m/s | 3-15m/s |
| Robot weight | 320kg | 350kg | 380kg | 400kg | 420kg | 500kg |
| Pump output diameter | 3inch | 3inch | 4inch | 4inch | 4inch | 4inch |
| Pump flow rate(cubic meters/ hour) | 100 m³ | 100m³ | 200m³ | 200m³ | 200m³ | 200m³ |
| Pump head | 0-30m | 0-30m | 0-30m | 0-30m | 0-30m | 0-25m |
| 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 | 22kw | 22kw | 30kw | 30kw | 30kw | 45kw |
| Hydraulic system pressure | 0-16Mpa | |||||
| Particle size | 15mm | 15mm | 38mm | 38mm | 38mm | 60mm |
| Reeling system speed | 0-10r/min | |||||
| Hydraulic hoses | 50m (Standard configuration) | |||||
| Control system | Wireless remote control | |||||
| Lighting system | Underwater LED lights *2 | |||||
Case 1: South Africa Private Sewage Treatment Facility Project
Client Background & Core Requirements:
Client type: Private operator managing medium-scale sewage treatment facilities in South Africa.
The facility’s sedimentation tanks and diversion channels accumulated thick sludge year-round. Regular sludge buildup reduced tank capacity and interfered with normal wastewater treatment procedures. The client rejected manual diving operations due to high safety risks. Local temporary dredging service providers offered high hourly rates and lacked flexible scheduling. The client hoped to own stable automated equipment for periodic self-maintenance.
The client put forward three clear requirements:
- Equipment can move freely inside rectangular sedimentation tanks and handle mixed sludge with scattered small solid debris.
- Wireless remote control allows operators to work safely above the water surface.
- The robot supports continuous suction of fluid sludge, easy relocation between multiple pools on the same site.
YG Customized Matching Solution:
After confirming the site dimensions, sludge characteristics and working depth, we recommended the YG-700 sewer cleaning robot.
This model features a 700mm dredging width, 4-inch pump outlet and 30kw main motor. The tracked chassis adapts to uneven silt-covered tank bottoms. Built-in underwater LED lights support low-visibility working environments. The standard 50m hydraulic hose meets the layout needs of the client’s sedimentation tanks. The machine can process sludge containing solid particles up to 38mm, perfectly matching the debris composition inside the facility. The client completed basic concrete foundation and pipeline preparation in advance. Full on-site assembly, commissioning and operation training finished within three working days.
Client Feedback After 4 Months Of Continuous Use:
“Our facility runs periodic cleaning every 60 days. This sewer cleaning robot removes tank sediment without sending workers underwater. The tracked chassis travels smoothly over accumulated sludge, and the wireless remote delivers stable control signals. We cut spending on outsourced dredging teams significantly. The suction system handles mixed sludge reliably. We plan to add a second unit for our newly built water tank, and we are looking for a water tank cleaning robot to support auxiliary maintenance tasks.”
Case 2: USA Private Municipal Pipeline Contractor Project
Client Background & Core Requirements:
Client type: Independent engineering contractor based in the United States, mainly undertaking private drainage pipeline maintenance and lake silt clearing projects.
The contractor receives scattered short-term dredging orders all year round, including residential community drainage channel cleaning and small lake sediment removal. The client required mobile equipment that adapts to multiple different working locations.
Key client requirements:
- Compact overall dimensions for easy transport between different project sites.
- Adjustable travel speed to suit narrow channels and open waters.
- Stable pumping head to transport sludge over medium distances.
- Simple maintenance structure, convenient for their small engineering team to manage.
YG Customized Matching Solution:
According to the diversified working scenarios, we suggested the YG-600 sewer cleaning robot. Its compact dimensions of 1500*600*650 mm simplify transportation. The unit equips a 3-inch pump and a 22 kW main motor. Travel speed ranges from 3 m/s to 15 m/s, so operators adjust movement speed based on channel width. The hydraulic system supports 0–30m pump head, meeting the sludge conveying demands of most small and medium projects. The client received the water tank cleaning robot equipment, completed assembly and trial run within 2 days. Our team supplied detailed operation guides and daily maintenance checklists remotely.
Client Feedback After 5 Months Of Field Application:
“We bring this sewer cleaning robot to multiple job sites every month. Its compact size makes transport far easier than large dredging machinery. It works well inside narrow drainage ditches and small lakes. The underwater lighting helps operators observe sludge distribution clearly. We have searched for an underwater dredging robot to expand our service scope, and this machine creates more project opportunities for our team. We also keep comparing specifications of a sewage cleaning robot for future equipment expansion.”
Key Differences Between Two Project Scenarios
Studying the gaps between these two projects helps you select the appropriate model according to your own working conditions.
1. Working Environment:
The South African project operates in fixed sedimentation tanks, with stable working boundaries and continuous long-hour operation requirements.
The American contractor faces highly variable environments, switching between enclosed pipelines, open channels and shallow lakes. Mobility and flexible transportation become the primary consideration.
2. Sludge Composition:
Sludge inside South African sewage tanks mixes fine sediment and organic waste. The client prioritizes stable, continuous suction performance.
The US project encounters more variable materials, including sand, twigs and domestic waste, requiring reliable capacity to handle mixed impurities.
3. Operation Cycle
The South African facility runs scheduled cleaning every two months, so equipment stays on-site permanently.
The US contractor deploys the robot on temporary short-term projects, requiring quick setup and relocation.
Supporting Auxiliary Configuration Selection Guide
When preparing your full dredging system, reasonable auxiliary choices improve workflow coordination.
Hydraulic hose length: Standard configuration provides 50m hydraulic hoses. You can extend hoses for larger sites, but you need to evaluate pressure loss over extended distances.
Lighting system: All sewage cleaning robot models come with built-in underwater LED lights. If you carry out large-scale night operations, you can add extra lighting modules to improve visibility.
Reeling system: The reeling system controls hose release speed. It helps organize pipelines automatically during robot movement and reduces manual labor on site.
If you need a sewer cleaning robot for municipal pipelines, lake dredging, or industrial tank cleaning, the YG series provides reliable, proven performance. Contact us with your project requirements—pipeline diameter, sediment type, and site conditions. We will recommend the right underwater dredging robot for your operation. Get a free quote today.
