Compact Dredging Robot for Concrete Tank Sludge Removal in Malaysia

In May 2026, a Malaysian customer visited YG Machinery’s office and factory to discuss a sludge removal project for a concrete tank. After seeing the equipment and discussing the working conditions with our technical team, the customer placed an order and paid the deposit immediately.

The main challenge was the tank’s limited access: the entrance was approximately 800 mm in diameter, while the tank contained thick and sticky sludge that was difficult to remove with conventional equipment.

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Compact Dredging Robot Parameters

Parameter	YG450	YG500	YG600	YG700	YG800	YG900	YG1200
Robot Dimensions (mm)	≤1700 × 450 × 450	1500 × 500 × 650	1500 × 600 × 650	1600 × 700 × 650	1600 × 850 × 700	1650 × 960 × 750	1900 × 1200 × 750
Applicable Manhole / Access	≥600 mm opening	≥600 mm opening	≥600 mm opening	≥700 mm opening	≥800 mm opening	≥900 mm opening	Large culvert / open access
Dredging Width (mm)	450	500	600	700	800	900	Suitable for large culverts
Travel Speed (m/s)	3–12	3–15	3–15	3–15	3–15	3–15	0–17 m/min
Pump Diameter (inch)	3	3	3	4	4	4	4 or 6
Pump Flow (m³/h)	50	100	100	160	160	200	250
Pump Head (m)	0-30	0–30	0–30	0–25	0–25	0–25	0–30 (Horizontal: 100–150 m)
Hydraulic Station Dimensions (mm)	2000 × 1100 × 1500 (recommended)	2200 × 1200 × 1700	2200 × 1200 × 1700	2200 × 1200 × 1700	2200 × 1200 × 1700	2200 × 1200 × 1700	2120 × 1240 × 1200
Main Motor Power (kW)	11–15 kW	18	18	22	22	22	45 kW (50 kW) / Diesel 76 kW (123 kW)
Hydraulic System Pressure (MPa)	0–16	0–16	0–16	0–16	0–16	0–16	Custom / high-pressure system
Particle Size Capacity (mm)	≤10–20 mm (soft sludge)	15	15	40	40	50	0–40 (customizable)
Winch Speed (r/min)	0–10	0–10	0–10	0–10	0–10	0–10	0–10
Pipe Length (m)	20–30 optional	30–50 optional	30–50 optional	30–50 optional	30–50 optional	30–50 optional	30 m/pack, high-pressure resistant
Control System	Wireless Remote Control	Wireless Remote	Wireless Remote	Wireless Remote	Wireless Remote	Wireless Remote	Wireless Remote
Lighting System	Underwater LED ×2	Underwater LED ×2	Underwater LED ×2	Underwater LED ×2	Underwater LED ×2	Underwater LED ×2	Underwater LED ×2

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Project Overview

Project Location	Malaysia
Project Date	May 2026
Application	Concrete tank sludge removal
Tank Entrance	Approximately 800 mm
Equipment	YG450 Compact Dredging Robot
Sludge Condition	Thick, sticky, and partially compacted
Discharge Distance	Approximately 30 m
Solution	Customized breaking, dilution, and pumping system

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Customized Compact Dredging Robot Solution

Based on the customer’s tank dimensions and sludge conditions, YG Machinery recommended the YG450 compact dredging robot.

Its compact configuration allowed the robot to be slowly lowered into the tank through the approximately 800 mm entrance. The system was customized with several key components:

• Powered breaking head to loosen and break compacted sludge
• High-pressure water gun to mix water with thick sludge and improve pumpability
• Hydraulic remote transfer pump and slurry pump for sludge removal
• Discharge pipeline to transport the sludge slurry approximately 30 m to the customer’s designated location

The working process was essentially:

Break → Mix & Dilute → Pump → Discharge

This combination allowed the robot to handle thick sludge more effectively than relying on suction alone.

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Customer Visit and On-Site Deployment

Before placing the order, the customer visited YG Machinery’s office and factory in May 2026 to inspect the equipment and discuss the project requirements in person.

After confirming the robot configuration with the technical team, the customer paid the deposit and placed the order immediately.

After delivery, the customer used lifting equipment to slowly lower the YG450 into the concrete tank through the restricted entrance. The robot then operated inside the tank for sludge removal.

Customer Feedback

The customer reported that the cleaning performance was very good. The YG450 successfully entered the tank through the limited opening, while the breaking head, water jet, and pumping system worked together to loosen, dilute, and remove the accumulated sludge.

This project shows how a compact dredging robot can be customized for concrete tanks where access is limited and sludge is thick or partially compacted.

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Need a Compact Dredging Robot for Your Tank?

YG Machinery can customize the robot configuration according to your tank entrance, internal dimensions, sludge condition, and pumping distance.

For a project evaluation, provide the tank dimensions, access opening size, sludge thickness, and discharge distance. Our technical team can recommend a suitable dredging robot and pumping configuration.