

The YG dredging robot is an intelligent, unmanned underwater dredging and sand-pumping equipment. It integrates professional sand dredging pump technology and intelligent remote control system, and it is one of the most popular mini dredge for sale and small dredge for sale devices on the global environmental and water conservancy equipment market.
Different from traditional manual dredging boats and large dredgers, this intelligent river sand pumping machine is designed for shallow water, narrow waterways and complex underwater environments. It abandons manual diving operation and dangerous ship construction, realizing fully automatic underwater walking, sediment stirring, sand pumping and sludge cleaning.
Equipped with tracked underwater chassis, high-torque stirring cutter head and high-flow sand dredging pump. It can clean river sludge, reservoir sediment, pond silt and accumulated river sand efficiently. With compact size, flexible movement and low investment cost, the YG river sand pumping machine is widely favored by municipal engineering teams, environmental protection companies and farm water conservancy projects worldwide. If you are interested, please contact YG immediately for more information.
Dredging Robot Parameter
| 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 |
| 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 | |||||


6 Working Principle of YG Dredging Robot
1. Remote Intelligent Control Positioning
Operators control the whole machine on the shore through wireless remote console. The robot receives remote instructions to adjust forward, backward, steering and underwater working depth, realizing full visual unmanned operation without manual underwater work.
2. Underwater Crawler Walking & Terrain Adaptation
The robot adopts anti-slip underwater crawler chassis. It can walk steadily on soft silt, uneven riverbed and sloped water bottom, avoiding sinking and slipping problems of traditional floating dredging equipment. It adapts to various complex underwater terrain.
3. Sediment Stirring & Loosening
The front-end high-speed stirring cutter head rotates continuously underwater, stirring hardened sludge, accumulated river sand and mixed fine gravel into uniform water-sand slurry. It solves the problem of hard sediment that cannot be pumped by ordinary fixed pumps.
4. High-Power Pump Suction & Long-Distance Conveying
Matched with professional sand dredging pump, the robot sucks the stirred high-concentration slurry instantly. The slurry is transported to the designated shore sedimentation area through floating pipelines, completing integrated dredging, sand extraction and sludge discharge work.
5. Continuous Circulating Dredging Operation
The whole system forms a closed circulating working process of stirring, suction and discharge. No repeated construction or secondary cleaning is needed, ensuring continuous and stable dredging efficiency for long-time underwater operation.


6 Core Features of Dredging Robots
1. Fully Unmanned & Zero Safety Risk
As intelligent small dredge for sale equipment, it completely replaces manual diving and ship operation. It avoids drowning, mud sinking and underwater operational risks, greatly improving construction safety coefficient.
2. Super Flexible & No Working Dead Angle
Small and compact body can enter narrow urban rivers, landscape waterways, small ponds and shallow beach areas where large dredgers cannot reach. It realizes dead-angle-free full coverage dredging.
3. High Concentration Dredging & High Efficiency
Professional stirring and pumping structure supports high-concentration slurry suction. The actual dredging efficiency is 3–5 times higher than manual cleaning and ordinary small pump dredging, greatly shortening project cycle.
4. Wear-Resistant & Durable Configuration
The cutter head and pump body of the yg sand dredging machine adopt high-chromium wear-resistant alloy material. It resists long-term friction of sand and gravel, with low failure rate and long service life, suitable for high-intensity continuous operation.
5. Low Noise & Eco-Friendly Operation
Electric hydraulic driving mode produces no fuel exhaust and low working noise. It will not damage aquatic ecology and fully meets urban environmental protection construction standards.
6. Easy Transportation & Wide Adaptability
Lightweight integrated design is convenient for vehicle transportation and rapid field deployment. It can switch freely between different working sites without complex disassembly and assembly.
6 Wide Applications of YG Dredging Robot
1. Urban River & Landscape Water Desilting
Ideal for urban inland river renovation, landscape lake cleaning and park water body improvement. It removes black and odorous sludge, restore water clarity, and beautify urban water environment.
2. Reservoir & Pond Sediment Cleaning
It cleans bottom sediment of agricultural reservoirs, fish ponds and industrial water ponds, improving water storage capacity, preventing water body siltation and extending service life of water conservancy facilities.
3. River Sand Extraction & Beach Sorting
The high-performance river sand pumping machine can extract qualified river sand from shallow water riverbeds and coastal tidal flats, providing high-quality sand materials for construction projects.
4. Municipal Drainage & Flood Control Dredging
Clean sludge and garbage in urban drainage ditches and flood control channels, ensure smooth water flow, and prevent waterlogging and flood disasters in rainy seasons.
5. Port & Wharf Shallow Water Dredging
Used for shallow water sediment cleaning around small ports and docks, maintaining water depth and ensuring normal ship entry and exit.
6. Aquaculture Water Improvement
Regular dredging of fish and shrimp ponds reduces sludge accumulation, improves water oxygen content, and reduces fish disease rate, helping farmers increase breeding output.


6 FAQs about YG Dredging Robot
A: Yes. Equipped with anti-blocking stirring cutter head and high-flow pump cavity, it can stir and pump mixed sludge, fine sand and small gravel without blockage during long-term operation.
A: Very simple. Full wireless remote control design, one operator can complete all working operations on the shore, no professional technical training required.
A: It has no safety risk, no dead-angle cleaning, higher efficiency, lower noise and no environmental pollution. It saves a lot of labor and ship rental costs than manual and ship dredging.
A: Low daily maintenance. Only need to clean pump body sediment and check crawler and cutter head wear regularly. The wear-resistant parts have long replacement cycle, controlling long-term operating costs effectively.
A: Yes. Optimized hydraulic heat dissipation system supports all-weather continuous underwater operation, suitable for large-scale and long-cycle water conservancy dredging projects.
A: It balances low investment cost and stable working performance. Compared with large dredgers, it has lower threshold and higher flexibility; compared with ordinary small pumps, it has unmanned safety advantages and higher dredging concentration.

