
A Spanish water authority needed to clean a 1.2 km irrigation channel in Andalusia. The channel was clogged with silt and vegetation. Traditional cleaning required draining the channel. This disrupted the water supply for local farms. The authority searched for an intelligent dredging robot. YG Machinery provided the YG-800 model for a trial project.
The channel was 6 meters wide and 1.5 meters deep. Silt depth reached 0.8 meters in some sections. The water flow had to continue during cleaning. The authority faced strict safety rules for confined spaces. Manual entry required permits and standby rescue teams. The project timeline was 6 weeks. The budget was limited.
The authority contacted three suppliers. Two offered only manual solutions. One offered a pipeline cleaning robot but with a 3-inch pump. That pump could not handle the silt volume. YG Machinery proposed the YG-800 with a 4-inch pump. The authority approved a trial.
Professional insight: Always check the channel width and silt depth before selecting a dredging robot. A wider robot improves coverage per pass.
Get Factory Quote | WhatsApp/Tel: +86 183 3715 2861
Why Traditional Methods Failed: The Need for a Pipeline Cleaning Robot
Traditional methods failed because they were slow, costly, and unsafe. Workers had to drain the channel first. Draining 1.2 km of water took 5 days. It wasted 18,000 m³ of water. Manual shoveling removed only 20 meters per day. The total labor cost reached €45,000.
The authority tried a high-pressure water jet. The jet could not move thick silt. It only pushed the silt downstream. The silt settled again within days. The authority also tried an excavator. The excavator damaged the channel lining. The concrete cracks required expensive repairs.
A pipeline cleaning robot offered a better solution. It could work underwater without draining. It removed silt and transported it through a hose. The robot operated by remote control. No workers entered the channel. This eliminated confined space risks.
Professional insight: Never drain a channel if you can clean it underwater. Draining wastes water and damages the ecosystem.
Intelligent Dredging Robot Solution: YG-800 Configuration
YG Machinery recommended the YG-800 intelligent dredging robot. It has an 800 mm dredging width. Its pump flow rate is 200 m³ per hour. It handles particles up to 38 mm. The robot weighs 400 kg. It uses a wireless remote control system.
The YG-800 includes several key features:
- Track travel speed: 3–15 m/s for stable movement on silt.
- Pump output diameter: 4 inches for high-volume slurry.
- Hydraulic station: 2200×1200×1700 mm with a 30 kW motor.
- Hydraulic hoses: 50 meters as standard.
- Lighting: Two underwater LED lights.
- Particle size: 38 mm maximum.
The 4-inch pump was critical for the Andalusia project. The silt contained small stones and roots. A 3-inch pump would clog frequently. The 38 mm particle size handled all debris. The 50-meter hose allowed the robot to reach the channel center. The hydraulic station stayed on the bank.
The authority ordered one YG-800 unit. YG provided a spare parts kit and a digital manual. The delivery timeline was 35 days from order confirmation.
Professional insight: Match the pump output diameter to your debris size. A 4-inch pump handles most agricultural silt and small stones.


Intelligent Dredging Robot Specifications and Technical Data
The YG-800 crawler dredging robot is part of a six-model lineup from YG-500 to YG-1200. Each model offers different dredging widths and pump flows. The YG-800 balances size and power for medium channels. All models use wireless remote control and underwater LED lights.
Intelligent Dredging Robot 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 | 100 m³/h | 100 m³/h | 200 m³/h | 200 m³/h | 200 m³/h | 200 m³/h |
| Hydraulic station dimensions | 2200×1200×1700mm | 2200×1200×1700mm | 2200×1200×1700mm | 2200×1200×1700mm | 2200×1200×1700mm | 2120×1240×1200mm |
| Main motor power | 22kW | 22kW | 30kW | 30kW | 30kW | 45kW |
| Hydraulic system pressure | 0–16Mpa | 0–16Mpa | 0–16Mpa | 0–16Mpa | 0–16Mpa | 0–16Mpa |
| Particle size | 15mm | 15mm | 38mm | 38mm | 38mm | 60mm |
| Reeling system speed | 0–10r/min | 0–10r/min | 0–10r/min | 0–10r/min | 0–10r/min | 0–10r/min |
| Hydraulic hoses | 50m | 50m | 50m | 50m | 50m | 50m |
| Control system | Wireless remote | Wireless remote | Wireless remote | Wireless remote | Wireless remote | Wireless remote |
| Lighting system | LED ×2 | LED ×2 | LED ×2 | LED ×2 | LED ×2 | LED ×2 |
The YG-800’s 200 m³/h flow rate was ideal for the 1.2 km channel. The 38 mm particle size handled roots and gravel. The 30 kW motor provided enough power for continuous operation. The 50-meter hose covered the full channel width.
Professional insight: For channels wider than 6 meters, choose a model with a longer hose or relocate the hydraulic station.
Shipping and Commissioning the Intelligent Dredging Robot in Spain
YG Machinery shipped the YG-800 from Shanghai to Valencia. Sea freight took 25 days. Customs clearance took 3 days. The unit arrived in a wooden case. A local crane lifted it onto the channel bank. Installation took one day.
Commissioning involved three steps:
- Connect hydraulic hoses – The team connected the 50-meter hose to the robot.
- Power the hydraulic station – They started the 30 kW motor and checked pressure.
- Test the remote control – The operator drove the robot into the water.
The test run cleaned 50 meters of channel in 2 hours. The robot removed 40 m³ of silt. The pump moved the slurry through the hose to a collection pit. The remote control worked from 30 meters away. The LED lights provided clear visibility.
YG’s remote technician guided the team via video call. The operator learned to control speed and dredging depth. The maintenance team learned to check hose connections and clean the pump. The authority approved the robot for full production.
Professional insight: Always test the remote control range before entering the channel. Obstacles can block the signal.

Intelligent Dredging Robot Performance and ROI Analysis
The YG-800 cleaned 1.2 km in 18 days. It removed 2,400 m³ of silt. The project saved €28,000. It avoided water supply disruption. The robot paid for itself in one project.
Key Results Summary
| Metric | Before (Manual) | After (YG-800) | Improvement |
|---|---|---|---|
| Daily cleaning rate | 20 m | 65 m | 225% faster |
| Water loss | 18,000 m³ | 0 m³ | 100% saved |
| Labor cost | €45,000 | €12,000 | 73% saved |
| Safety incidents | 2 near-misses | 0 | 100% safer |
| Project duration | 6 weeks | 18 days | 57% faster |
The ROI calculation was straightforward. The manual method cost €45,000 in labor and water. The YG-800 cost less than €35,000. The authority saved €28,000 on the first project. The robot also reduced safety risks. No workers entered the confined space.
The authority reported zero safety incidents. The robot worked 8 hours per day. It required only one operator. The maintenance cost was €500 for the entire project. The authority has since ordered two more units.
Professional insight: Calculate ROI by adding water savings, labor savings, and safety cost avoidance. Most dredging robots pay back in under 6 months.
Drain Cleaning Robot vs. Manual Methods: Key Results
The drain cleaning robot outperformed manual methods on every metric. It worked 3 times faster. It eliminated confined space entry. It reduced water loss to zero. The client reported zero safety incidents.
The robot’s 800 mm dredging width covered the channel in fewer passes. The 200 m³/h pump flow removed slurry quickly. The 38 mm particle size handled all debris. The wireless remote kept the operator on the bank. The underwater LED lights allowed night work.
The manual method required 6 workers. The robot required only 1 operator. The manual method took 6 weeks. The robot finished in 18 days. The manual method wasted 18,000 m³ of water. The robot wasted zero water.
The authority praised the robot’s reliability. The operator liked the simple controls. The maintenance team appreciated the easy hose connections. The project manager recommended YG Machinery to other water authorities.
Professional insight: Track daily cleaning rate and water loss. These two metrics prove the robot’s value to budget holders.

Submersible Dredging Robot: Buyer’s Guide and Final Thoughts
When buying a submersible dredging robot, check dredging width, pump flow, and particle size. Match these to your channel dimensions. Verify hydraulic hose length. YG offers six models from YG-500 to YG-1200. The YG-800 is ideal for medium channels.
Follow these steps:
- Measure your channel – Width, depth, and silt depth.
- Check debris size – Roots and stones need a 38 mm particle size.
- Verify pump flow – 200 m³/h suits most agricultural channels.
- Confirm hose length – 50 meters covers a 6-meter-wide channel.
- Ask for a spare parts kit – YG provides one with every order.
- Request remote support – YG offers video call commissioning.
The YG-800 proved to be a reliable intelligent dredging robot. It delivered strong ROI on a demanding Spanish project. The authority now recommends YG Machinery to other agencies. For water authorities facing silt problems, the YG series is a smart investment.
Professional insight: Always request a reference list from the supplier. A proven track record in similar projects reduces your risk.
Request Solution for My Business
FAQ About YG Submersible Dredging Robot
Match the robot’s dredging width to your channel width. The YG-800 suits channels up to 6 meters wide. Check pump flow and particle size.
Yes. The YG-800 handles particles up to 38 mm. Larger models like the YG-1200 handle 60 mm particles.
Yes. YG provides a spare parts kit with every order. Parts ship within 5 days.
YG offers a one-year warranty on the motor and main components. Wear parts are covered for 6 months.
Yes. The hydraulic system works in temperatures above 0°C. Use winter-grade oil for colder conditions













