Dredging System | Relong Technology – Advanced Dredging Equipment & Solutions

About Relong Technology

Relong Technology Co., Ltd., based in Qingdao City, Shandong Province, is a high-tech enterprise integrating intelligent robotics, ship design, marine environmental testing, and advanced dredging systems. We specialize in the research, design, production, and global supply of dredging equipment and components.

With over two decades of experience, we provide one-stop customized dredging solutions tailored to each client’s unique site conditions. Our team of international welders, engineers, and field service experts ensures every product meets the highest standards of quality, durability, and performance.

Professional Design & Engineering
International Welding Standards
On-Site Installation & Training
Global After-Sales Support

Our Dredging Services

From advisory to maintenance, Relong offers comprehensive support to ensure your dredging operations run smoothly and efficiently.

Dredging Advisory

Expert consultation based on 20+ years of theoretical and operational experience. We analyze site conditions and recommend optimal equipment configurations.

Design & Engineering

Custom engineering of dredging systems, pumps, and attachments. Our R&D team delivers efficient, innovative solutions for complex maritime challenges.

Training & Installation

On-site crew training and equipment installation. We ensure your team can operate and maintain systems at peak performance.

Maintenance Support

Worldwide technical support, troubleshooting, field service, and immediate component repair to minimize downtime.

Premium Dredging Products

Engineered for performance, durability, and maximum efficiency in harsh marine environments.

Relong Booster Pump Station

Enhances discharge pumping power for trailing suction hopper and cutter suction dredgers. Increases efficiency and reach.

Applications: TSHD, CSD
Function: Power boost
Customizable: Yes

High-Efficiency Cutter Head

Robust design for maximum material intake. Ideal for hard-packed sediments and clay.

Type: Dredge Head
Material: Wear-resistant alloy
Custom Teeth: Available

Dredge Gearbox

Heavy-duty gearbox designed for hydraulic submersible pumps and cutter drives. High torque transmission.

Design: For hydraulic systems
Standard: International
Efficiency: High torque

RLDS-FENDER Marine Fender

Protects vessels and docks. Available in pneumatic, SC, and C-series models.

Types: Pneumatic, SC, C
Use: Dock & vessel protection
Material: Rubber composite

Cutter Head Teeth

Replaceable wear parts for cutter heads. Made from ultra-hard alloys for extended life.

Material: High-chrome alloy
Compatibility: All cutter heads
Custom Shapes: Yes

Hydraulic Submersible Dredge Pump

Driven by excavator hydraulic system. Ideal for muddy, high-sediment environments.

Drive: Excavator hydraulic
Diameter: 4" to 12"
Use: Excavator attachment

Electric Submersible Slurry Pump

High-efficiency electric pump with wear-resistant alloy. Ideal for sand, silt, and sludge removal.

Power: 3kW–315kW
Diameter: 2" to 16"
Materials: 304, 316, duplex SS

Marine Hydraulic Winch

Heavy-duty winch for dredger positioning and mooring. High load capacity and reliability.

Type: Hydraulic
Use: Dredger positioning
Custom: Available

Cutter Suction Dredging System

Complete system for continuous dredging. Includes cutter head, pump, pipeline, and control.

Automation: Optional
Flexibility: High
Output: Up to 2000 m³/h

HDPE & Floating Dredging Pipeline

Lightweight, corrosion-resistant pipelines. Self-floating with rubber hose connections.

Material: HDPE, rubber
Type: Floating, rigid
Diameter: Customizable

Submersible Pump with Suction Cutter

Integrated cutter agitates sediment for efficient pumping. Ideal for compacted layers.

Function: Agitation + pumping
Drive: Electric/Hydraulic
Efficiency: High intake

Clamshell Bucket

Excavator attachment for precise dredging and material handling in deep water.

Type: Excavator attachment
Capacity: Custom
Use: Deep water dredging

Frequently Asked Questions

Get answers to common inquiries about our dredging systems and services.

What types of dredgers do you support?

We support cutter suction dredgers (CSD), trailing suction hopper dredgers (TSHD), and excavator-based dredging systems with custom attachments and pumps.

Can you customize equipment for specific site conditions?

Yes. Relong provides full custom engineering and design services based on your dredging site’s depth, sediment type, flow requirements, and environmental conditions.

Do you offer installation and training?

Yes. Our team provides on-site installation, commissioning, and comprehensive crew training to ensure optimal operation and maintenance.

What materials are used in your pumps and cutter heads?

We use high-chrome wear-resistant alloys as standard. Custom materials include 304, 316, 316L, and duplex stainless steel for corrosive environments.

How quickly can I get technical support?

Our global service network ensures a response within 24 hours. Field engineers are available for urgent troubleshooting and repairs.

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Advanced Dredging Systems for Global Maritime Projects