Dredging Robot

Sludge on a tank floor steals volume and blocks outlets. Hand tools on the bank rarely reach the full layer. Draining the tank stops the line and still leaves thick solids. A dredging robot stays on that floor and pumps the layer to shore. The operator works outside with a wireless remote and two underwater LED lights. You can clean while water stays in the tank. The hydraulic station stays on the bank, so the main motor stays dry and easy to service.

YG Machinery is the manufacturer of this tracked series, from YG-500 to YG-1200. Factory supply means clear specs, stable quality, and a direct price without extra layers. Dredging width runs from 500 mm to 1200 mm. Rated pump flow is 100 or 200 cubic meters per hour. Main motor power is 22 kW, 30 kW, or 45 kW. The pump can pass 15 mm, 38 mm, or 60 mm solids. Standard hydraulic hoses are 50 meters long. Width, hose length, and pump size can be customized. Match the model to your hatch, sludge, and particle size first. Then send your tank data to YG Machinery for a free factory quote.

Factory Parameter Sheet for the Dredging Robot Series

Parameter	YG-500	YG-600	YG-700	YG-800	YG-900	YG-1200
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
Dredging width	500 mm	600 mm	700 mm	800 mm	900 mm	1200 mm
Track travel speed	3–15 m/s	3–15 m/s	3–15 m/s	3–15 m/s	3–15 m/s	3–15 m/s
Robot weight	320 kg	350 kg	380 kg	400 kg	420 kg	500 kg
Pump output diameter	3 inch	3 inch	4 inch	4 inch	4 inch	4 inch
Pump flow rate	100 m³/h	100 m³/h	200 m³/h	200 m³/h	200 m³/h	200 m³/h
Hydraulic station dimensions	2200×1200×1700 mm	2200×1200×1700 mm	2200×1200×1700 mm	2200×1200×1700 mm	2200×1200×1700 mm	2120×1240×1200 mm
Main motor power	22 kW	22 kW	30 kW	30 kW	30 kW	45 kW
Hydraulic system pressure	0–16 MPa	0–16 MPa	0–16 MPa	0–16 MPa	0–16 MPa	0–16 MPa
Particle size	15 mm	15 mm	38 mm	38 mm	38 mm	60 mm
Reeling system 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
Hydraulic hoses	50 m standard	50 m standard	50 m standard	50 m standard	50 m standard	50 m standard
Control system	Wireless remote control	Wireless remote control	Wireless remote control	Wireless remote control	Wireless remote control	Wireless remote control
Lighting system	Underwater LED lights ×2	Underwater LED lights ×2	Underwater LED lights ×2	Underwater LED lights ×2	Underwater LED lights ×2	Underwater LED lights ×2

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How Does a Dredging Robot Move Sludge to Shore?

How does the machine move sludge without a person in the water? The system splits wet work and dry power. The crawler and pump run underwater. The hydraulic station stays on the bank.

Working sequence

1. Place the hydraulic power pack on firm ground near the tank.
2. Connect the 50 m hose bundle from the station to the crawler.
3. Lower the robot through the access opening with a hoist.
4. Drive the tracks across the tank floor with the wireless remote.
5. Start the slurry pump and draw water mixed with settled solids.
6. Send the mixture through the discharge hose to a pit or dewatering point.
7. Match the discharge hose to the 3-inch or 4-inch pump outlet.
8. Use the reeling system at 0–10 r/min to pay hose in or out.
9. Adjust hydraulic pressure within 0–16 MPa to match sludge load.
10. Lift the crawler for rinse and wear-part checks after the job.

Hydraulic pressure at the top of the range is 160 bar, or about 2,320 psi. This layout is a remote-controlled dredging robot with the power unit kept dry. Some buyers call this crawler a Submersible Dredging Robot. You can service the motor, oil, and filters on shore. Wear parts on the crawler still need a planned lift-out. OSHA treats many tanks, vessels, and pits as confined spaces under 29 CFR 1910.146. Limited entry and a possible bad atmosphere are the usual reasons. Keeping the crew on the bank avoids the entry task. It does not cancel site rules for energy isolation, hose zones, or lifting. Plan those steps before the first shift.

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Which Dredging Robot Width and Power Fit Your Tank?

Width is the first selection step. Particle size is the second. Rated flow is the pump capacity of the mixture, not dry mud volume.

Model groups by duty

• YG-500 / YG-600: 500–600 mm path, 320–350 kg, 3-inch outlet, 100 m³/h, 22 kW, 15 mm solids. Best for narrow sumps, channels, and fine silt.
• YG-700 / YG-800 / YG-900: 700–900 mm path, 380–420 kg, 4-inch outlet, 200 m³/h, 30 kW, 38 mm solids. Best for wider tanks with moderate solids.
• YG-1200: 1200 mm path, 500 kg, 4-inch outlet, 200 m³/h, 45 kW, 60 mm solids. Best for large floors when the hatch allows entry.

Selection checks that matter more than model name

• Largest expected stone versus the particle limit on the sheet
• Hatch length, width, and height versus robot body size
• Floor grip: tracks need a bottom they can hold
• Discharge distance and lift versus hose plan and motor power
• Site voltage and frequency for a 22 kW, 30 kW, or 45 kW motor

Do not read 200 m³/h as 200 cubic meters of dry cake. A thin slurry moves more water than solids. A thick layer needs a slower pass and a clear discharge line. Ask us to estimate solids from your sludge sample and hose length. Soft, deep mud may need a site check before shipment.

Where Does a Water Tank Cleaning Robot Fit?

Can one crawler cover a fire water tank and a plant clarifier? Often yes, if the floor, hatch, and solids match the sheet. A water tank cleaning robot fits when silt or sand sits on a firm bottom. Light sludge is also within this duty if the particle cap is respected. The tank can stay partly full, so you avoid a full drain-down.

Common applications

• Fire water tanks and industrial recycle tanks
• Cooling-tower basins
• Primary clarifiers and sedimentation tanks between larger shutdowns
• Mine sumps and plant basins with a firm floor
• Culverts and narrow channels (YG-500 or YG-600)
• Wide lagoons when the hatch allows YG-900 or YG-1200

Clear limits

• Not a cutter-suction dredger for rock or long river bars
• Not a process guarantee for effluent quality
• Solids above 60 mm need a larger passage or a screen
• Open ponds still need a bank strong enough for the hydraulic station
• Discharge must fit within the hose plan

For a sedimentation tank cleaning robot, send water depth, sludge thickness, and the longest discharge run. Those three numbers decide hose length and motor size more than the model name does.

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Crawler Dredging Robot for Sale: What Should You Check?

A crawler dredging robot for sale should be judged on limits, not on a single flow number. Start with the mixture, not a peak brochure line. Rated flow is the volume of water plus solids.

Flow example (not a promise)

• If solids are about one-tenth of the volume, use the 200 m³/h rating as the base.
• That implies about 20 cubic meters of solids each hour, before losses.
• Real sludge is not that even.
• Hose friction further cuts the rate.
• Standard hydraulic hose is 50 m; longer runs need a pressure check.

Site data checklist before you buy

• Hatch size versus robot length, width, and height
• Floor condition, slope, and obstacles such as pipes or baffles
• Water depth and the longest path from the bank to the far wall
• Spudge thickness, density if known, and the largest particle
• Discharge distance, lift, and where the slurry will go
• Electric supply for a 22 kW, 30 kW, or 45 kW motor
• Space for a station about 2.2 m long and up to 1.7 m high
• Lifting gear for a robot of 320 kg to 500 kg
• Hose route, walkways, and a safe stand for the operator

Track speed is adjustable, so the operator can slow down in thick sludge. Use a quicker pass only when the floor is firm, and the layer is thin.

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YG Machinery Support, Parts, and How to Request a Quote

YG Machinery supplies these tracked units to plant owners and contractors. We handle the steps around the machine, not only the shipment.

What we need from you

• Sketch or photos of the tank
• Water depth and sludge thickness
• Largest stone or particle you can see
• Hatch size and site power
• Preferred discharge point

What you receive

• One matched model and hose plan
• Written quote before the crate leaves
• Custom width and extra hose length if needed
• Install guidance by video or phone
• Remote technical support after startup
• Wear parts: pump wet-end parts, seals, track shoes, hoses, LED lamps

Simple maintenance rhythm

• Check hydraulic oil, hose skins, and the pump inlet after each job
• Rinse the crawler before the silt dries
• Store the remote and lamps in a dry box
• Set a monthly inspection if the robot works daily
• Join the check with our technician by video when needed

Send the tank size, the sludge type, and the discharge point. Request a free quote and a custom layout today. We answer with a model number, the matching sheet row, and a clear offer.

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Frequently Asked Questions about the Submersible Dredging Robot