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iTECH: Your Premier Partner in Dredging and Marine Construction Solutions
Leveraging decades of engineering prowess and manufacturing excellence from China's industrial heartland, iTECH stands as a global leader in the design and construction of heavy-duty maritime equipment. Our Cutter Suction Dredgers (CSDs) are engineered for unmatched productivity, reliability, and efficiency, serving critical projects in land reclamation, port development, channel deepening, and environmental remediation worldwide. We deliver integrated solutions from concept to commissioning and beyond.
A Cutter Suction Dredger is a stationary, continuous excavation vessel designed for underwater mining and material transport. It is the industry's most versatile and efficient solution for a wide range of soil types. The process involves a rotating cutter head mechanically loosening the seabed material (from soft silt to hardened clay and weak rock), while a powerful centrifugal pump creates a vacuum to suction the solid-fluid mixture. This mixture is then hydraulically transported through a pipeline system to a designated placement area, often several kilometers away.
Primary Applications:
Capital Dredging: Deepening and widening ports, harbors, and navigation channels to accommodate larger vessels.
Land Reclamation: Extracting and transporting sand and sediment to create new landmasses for industrial,
commercial, or residential use.
Coastal Protection & Beach Nourishment: Replenishing eroded shorelines and constructing defensive infrastructures.
Environmental Dredging: Remediating contaminated sediments from rivers, lakes, and canals to restore ecosystems.
Mining & Extraction: Underwater mining of sand, gravel, and precious minerals.
Every iTECH CSD is a testament to our commitment to robust design, operational efficiency, and technological integration.
High-Torque Cutter Drive System:
§ Geology-Specific Design: Custom-engineered cutter heads with optimized ladder, tooth pattern, and material (AR steel, Ni-Hard, or Tungsten Carbide inserts) based on your project's geotechnical survey (N-value analysis).
§ Power & Durability: Cutter power ranges from 400 kW to over 5,500 kW, delivering exceptional torque to fragment the toughest materials, including highly consolidated clays and weathered rock.
§ Data Point: Our 4,000 kW cutter system achieves a cutting efficiency of ~220 m³/h in dense clay and weathered sandstone.
Optimized Dredge Pump Technology:
§ CFD-Enhanced Hydraulics: Advanced computational fluid dynamics (CFD) modeling shapes our impellers and pump casings to minimize turbulent loss and cavitation, increasing hydraulic efficiency by ≥7% compared to conventional designs.
§ Extended Wear Life: Critical wear parts (impellers, liners) are cast from high-chrome alloys (27% Cr) or fitted with replaceable ceramic liners, increasing service life by up to 50% and reducing downtime.
§ High-Capacity Transport: Main dredge pump power options from 1,200 kW to 10,000 kW+, capable of discharging mixtures over 8 km.
Precision Positioning & Maneuverability:
§ Spud Carriage System: A robust twin-spud system provides a stable pivot point, allowing for precise, efficient(fan-shaped) cutting patterns even in currents.
§ Swin Hoist Winches: High-tensile steel wire and powerful winches ensure strong holding power and smooth swinging motion.
Heavy-Duty Structural Integrity:
§ Finite Element Analysis (FEA): The entire hull structure is optimized using FEA software to withstand cyclic loads and ensure longevity under the most demanding conditions.
§ Classification Society Standards: Vessels are designed and built in accordance with rules from leading classification societies (e.g., ABS, BV, CCS), using AH36/DH36 grade steel and higher for critical structural members.
iTECH offers a comprehensive range of CSDs to match project scale, geological challenges, and budgetary requirements.
Model | Dredging Capacity | Dredging Depth | Suction/Discharge Pipe Dia. | Engine(s) Power |
CSD-200 | 500 m3 /hr | 1-5 m | 200/200 mm | 160-300 kw |
CSD-250 | 800 m3 /hr | 1-8 m | 250/250 mm | 200-400 kw |
CSD-300 | 1200 m3 /hr | 1-12 m | 300/300 mm | 400-600 kw |
CSD-400 | 2200 m3 /hr | 1.5-14 m | 400/400 mm | 700-1200 kw |
CSD-500 | 3500 m3 /hr | 1.5-15 m | 600/500 mm | 1100-1600 kw |
CSD-650 | 5000 m3 /hr | 1.5-18 m | 650/650 mm | 2200-2500 kw |
CSD-700 | 7000 m3 /hr | 1.5-20m | 750/700 mm | 2800-3500 kw |
The iTECH i-Operate® suite integrates state-of-the-art automation to maximize output, ensure precision, and reduce operator workload.
Auto-Dredge Control System: Automatically regulates cutter speed, ladder depth, and engine
load to maintain optimal production and prevent equipment overload.
Dredge Tracking & Profiling (3D): A real-time, integrated GPS and sonar system provides a 3D
visualization of the cutterhead position relative to the design profile, enabling "see-and-dredge" accuracy.
Production & Fuel Monitoring: Continuous measurement of in-situ density and flow rate provides
accurate, real-time production data (m³/hr) and fuel consumption metrics for project management.
Predictive Maintenance Module: Vibration and thermal sensors on critical components (bearings, gears)
enable condition-based monitoring, forecasting maintenance needs to prevent unplanned stops.
Remote Diagnostics: Secure satellite link allows our engineers to perform remote troubleshooting and
system diagnostics, minimizing response time.
iTECH dredgers are operating with proven success across the globe.
Case Study 01: Southeast Asia Mega-Port Expansion (2023)
§ Vessel: iTECH-CSD 10000
§ Challenge: Execute high-precision dredging in a confined basin adjacent to live port operations, with abrasive sandy soils.
§ Result: Exceeded projected average output by 15%, moving 18 million m³ and completing the project 6 weeks ahead of schedule.
Case Study 02: Middle East Artificial Island Development (2022)
§ Vessel: 2x iTECH-CSD 15000
§ Challenge: Achieve extreme-output, continuous 24/7 operation for a 12 km pipeline transfer of sand for a large-scale island creation project.
§ Result: The duo achieved a combined output of over 850,000 m³/week, with an overall mechanical availability of 96.5% throughout the 20-month project.
Case Study 03: European River Navigation Maintenance (Ongoing)
§ Vessel: iTECH-CSD 4000
§ Challenge: Perform efficient, environmentally sensitive dredging in a high-traffic waterway with strict regulatory and ecological constraints.
§ Result: The vessel's low emissions profile, precision control, and efficient operation ensured compliance and minimized disruption to river traffic.
Our partnership extends far beyond the delivery of the vessel.
Pre-Sales & Engineering Consultation: Our project engineering team conducts in-depth feasibility
studies to recommend the optimal vessel configuration.
Financing & Delivery Solutions: We offer flexible financing models and manage the entire
logistics chain for safe and timely delivery to your project site.
Global Spares Network: Strategically located parts depots in Asia, the Middle East, and Europe guarantee
critical spares support with a 24/7 response protocol.
Comprehensive Training Programs: Extensive classroom and on-board training for your captains,
engineers, and maintenance crews ensures you extract maximum value from your asset.
On-Site Technical Service: Our field service engineers are available for deployment
anywhere in the world for commissioning, annual maintenance, and troubleshooting.
iTECH is dedicated to building a more sustainable future.
Tier III/EU Stage V Compliant Engines: Our vessels can be equipped with advanced engine packages
significantly reducing NOx, SOx, and particulate matter emissions.
Efficient Hydrodynamics: Hull and pump designs focused on reducing fuel consumption per cubic meter of
material dredged.
Low-Noise & Anti-Vibration Design: Minimizing the acoustic impact on marine ecosystems.
Precision Dredging: Automation ensures minimal over-dredging, protecting the natural seabed and reducing
the environmental footprint.
Engineering Depth: A strong R&D focus with numerous patents, ensuring cutting-edge technology and performance.
Quality & Reliability: Manufacturing processes certified to ISO 9001:2015, utilizing globally sourced,
premium-grade components.
Unmatched Value: Combining advanced engineering with cost-effective manufacturing to deliver superior
Return on Investment (ROI).
Customization: We build solutions tailored to your specific project parameters and operational challenges.
Global Partnership: A truly international service and support network that is always within your reach.
Ready to discuss your project's specific requirements? Challenge us with your most complex dredging problems. Let iTECH's engineering excellence drive your project's success.
The Definitive Tool: What is a Cutter Suction Dredger?
The iTECH Advantage: Core Engineering Innovations
Product Portfolio: Technical Specifications & Capabilities
i-Operate: Intelligent Dredging & Automation Systems
Proven Performance: Global Project Case Studies
i-Support: Total Lifecycle Customer Value
Commitment to Sustainability & Environmental Stewardship
Why Partner with iTECH?
Contact Our Engineering Team
iTECH: Your Premier Partner in Dredging and Marine Construction Solutions
Leveraging decades of engineering prowess and manufacturing excellence from China's industrial heartland, iTECH stands as a global leader in the design and construction of heavy-duty maritime equipment. Our Cutter Suction Dredgers (CSDs) are engineered for unmatched productivity, reliability, and efficiency, serving critical projects in land reclamation, port development, channel deepening, and environmental remediation worldwide. We deliver integrated solutions from concept to commissioning and beyond.
A Cutter Suction Dredger is a stationary, continuous excavation vessel designed for underwater mining and material transport. It is the industry's most versatile and efficient solution for a wide range of soil types. The process involves a rotating cutter head mechanically loosening the seabed material (from soft silt to hardened clay and weak rock), while a powerful centrifugal pump creates a vacuum to suction the solid-fluid mixture. This mixture is then hydraulically transported through a pipeline system to a designated placement area, often several kilometers away.
Primary Applications:
Capital Dredging: Deepening and widening ports, harbors, and navigation channels to accommodate larger vessels.
Land Reclamation: Extracting and transporting sand and sediment to create new landmasses for industrial,
commercial, or residential use.
Coastal Protection & Beach Nourishment: Replenishing eroded shorelines and constructing defensive infrastructures.
Environmental Dredging: Remediating contaminated sediments from rivers, lakes, and canals to restore ecosystems.
Mining & Extraction: Underwater mining of sand, gravel, and precious minerals.
Every iTECH CSD is a testament to our commitment to robust design, operational efficiency, and technological integration.
High-Torque Cutter Drive System:
§ Geology-Specific Design: Custom-engineered cutter heads with optimized ladder, tooth pattern, and material (AR steel, Ni-Hard, or Tungsten Carbide inserts) based on your project's geotechnical survey (N-value analysis).
§ Power & Durability: Cutter power ranges from 400 kW to over 5,500 kW, delivering exceptional torque to fragment the toughest materials, including highly consolidated clays and weathered rock.
§ Data Point: Our 4,000 kW cutter system achieves a cutting efficiency of ~220 m³/h in dense clay and weathered sandstone.
Optimized Dredge Pump Technology:
§ CFD-Enhanced Hydraulics: Advanced computational fluid dynamics (CFD) modeling shapes our impellers and pump casings to minimize turbulent loss and cavitation, increasing hydraulic efficiency by ≥7% compared to conventional designs.
§ Extended Wear Life: Critical wear parts (impellers, liners) are cast from high-chrome alloys (27% Cr) or fitted with replaceable ceramic liners, increasing service life by up to 50% and reducing downtime.
§ High-Capacity Transport: Main dredge pump power options from 1,200 kW to 10,000 kW+, capable of discharging mixtures over 8 km.
Precision Positioning & Maneuverability:
§ Spud Carriage System: A robust twin-spud system provides a stable pivot point, allowing for precise, efficient(fan-shaped) cutting patterns even in currents.
§ Swin Hoist Winches: High-tensile steel wire and powerful winches ensure strong holding power and smooth swinging motion.
Heavy-Duty Structural Integrity:
§ Finite Element Analysis (FEA): The entire hull structure is optimized using FEA software to withstand cyclic loads and ensure longevity under the most demanding conditions.
§ Classification Society Standards: Vessels are designed and built in accordance with rules from leading classification societies (e.g., ABS, BV, CCS), using AH36/DH36 grade steel and higher for critical structural members.
iTECH offers a comprehensive range of CSDs to match project scale, geological challenges, and budgetary requirements.
Model | Dredging Capacity | Dredging Depth | Suction/Discharge Pipe Dia. | Engine(s) Power |
CSD-200 | 500 m3 /hr | 1-5 m | 200/200 mm | 160-300 kw |
CSD-250 | 800 m3 /hr | 1-8 m | 250/250 mm | 200-400 kw |
CSD-300 | 1200 m3 /hr | 1-12 m | 300/300 mm | 400-600 kw |
CSD-400 | 2200 m3 /hr | 1.5-14 m | 400/400 mm | 700-1200 kw |
CSD-500 | 3500 m3 /hr | 1.5-15 m | 600/500 mm | 1100-1600 kw |
CSD-650 | 5000 m3 /hr | 1.5-18 m | 650/650 mm | 2200-2500 kw |
CSD-700 | 7000 m3 /hr | 1.5-20m | 750/700 mm | 2800-3500 kw |
The iTECH i-Operate® suite integrates state-of-the-art automation to maximize output, ensure precision, and reduce operator workload.
Auto-Dredge Control System: Automatically regulates cutter speed, ladder depth, and engine
load to maintain optimal production and prevent equipment overload.
Dredge Tracking & Profiling (3D): A real-time, integrated GPS and sonar system provides a 3D
visualization of the cutterhead position relative to the design profile, enabling "see-and-dredge" accuracy.
Production & Fuel Monitoring: Continuous measurement of in-situ density and flow rate provides
accurate, real-time production data (m³/hr) and fuel consumption metrics for project management.
Predictive Maintenance Module: Vibration and thermal sensors on critical components (bearings, gears)
enable condition-based monitoring, forecasting maintenance needs to prevent unplanned stops.
Remote Diagnostics: Secure satellite link allows our engineers to perform remote troubleshooting and
system diagnostics, minimizing response time.
iTECH dredgers are operating with proven success across the globe.
Case Study 01: Southeast Asia Mega-Port Expansion (2023)
§ Vessel: iTECH-CSD 10000
§ Challenge: Execute high-precision dredging in a confined basin adjacent to live port operations, with abrasive sandy soils.
§ Result: Exceeded projected average output by 15%, moving 18 million m³ and completing the project 6 weeks ahead of schedule.
Case Study 02: Middle East Artificial Island Development (2022)
§ Vessel: 2x iTECH-CSD 15000
§ Challenge: Achieve extreme-output, continuous 24/7 operation for a 12 km pipeline transfer of sand for a large-scale island creation project.
§ Result: The duo achieved a combined output of over 850,000 m³/week, with an overall mechanical availability of 96.5% throughout the 20-month project.
Case Study 03: European River Navigation Maintenance (Ongoing)
§ Vessel: iTECH-CSD 4000
§ Challenge: Perform efficient, environmentally sensitive dredging in a high-traffic waterway with strict regulatory and ecological constraints.
§ Result: The vessel's low emissions profile, precision control, and efficient operation ensured compliance and minimized disruption to river traffic.
Our partnership extends far beyond the delivery of the vessel.
Pre-Sales & Engineering Consultation: Our project engineering team conducts in-depth feasibility
studies to recommend the optimal vessel configuration.
Financing & Delivery Solutions: We offer flexible financing models and manage the entire
logistics chain for safe and timely delivery to your project site.
Global Spares Network: Strategically located parts depots in Asia, the Middle East, and Europe guarantee
critical spares support with a 24/7 response protocol.
Comprehensive Training Programs: Extensive classroom and on-board training for your captains,
engineers, and maintenance crews ensures you extract maximum value from your asset.
On-Site Technical Service: Our field service engineers are available for deployment
anywhere in the world for commissioning, annual maintenance, and troubleshooting.
iTECH is dedicated to building a more sustainable future.
Tier III/EU Stage V Compliant Engines: Our vessels can be equipped with advanced engine packages
significantly reducing NOx, SOx, and particulate matter emissions.
Efficient Hydrodynamics: Hull and pump designs focused on reducing fuel consumption per cubic meter of
material dredged.
Low-Noise & Anti-Vibration Design: Minimizing the acoustic impact on marine ecosystems.
Precision Dredging: Automation ensures minimal over-dredging, protecting the natural seabed and reducing
the environmental footprint.
Engineering Depth: A strong R&D focus with numerous patents, ensuring cutting-edge technology and performance.
Quality & Reliability: Manufacturing processes certified to ISO 9001:2015, utilizing globally sourced,
premium-grade components.
Unmatched Value: Combining advanced engineering with cost-effective manufacturing to deliver superior
Return on Investment (ROI).
Customization: We build solutions tailored to your specific project parameters and operational challenges.
Global Partnership: A truly international service and support network that is always within your reach.
Ready to discuss your project's specific requirements? Challenge us with your most complex dredging problems. Let iTECH's engineering excellence drive your project's success.
The Definitive Tool: What is a Cutter Suction Dredger?
The iTECH Advantage: Core Engineering Innovations
Product Portfolio: Technical Specifications & Capabilities
i-Operate: Intelligent Dredging & Automation Systems
Proven Performance: Global Project Case Studies
i-Support: Total Lifecycle Customer Value
Commitment to Sustainability & Environmental Stewardship
Why Partner with iTECH?
Contact Our Engineering Team
