ROV Trencher

SeAlien’s ROV-based trencher is engineered for demanding cable and pipeline burial in dynamic subsea environments. A streamlined buoyancy design reduces hydrodynamic resistance, while a suspension-integrated track system ensures stable movement across uneven seabeds.

The modular platform allows versatile configuration, and the high ratio of self-developed components ensures faster supply and simplified servicing. Equipped with a proprietary cable tracking system, the trencher enables efficient multi-sensor deployment, real-time burial depth monitoring, and automated post-inspection reporting.

Intelligent control software, powered by machine learning, dynamically adjusts vehicle posture, jetting pressure, and flow to match varying soil conditions, delivering precise, high-quality burial for a wide range of subsea cables and pipelines.

Main Features

Transportation & Installation

Highly modular design enables quick assembly/disassembling of chassis, track system, jetting system, chain cut module, buoyancy, main lift point, etc., standard with assembling/disassembling tools.All system can be fitted into standard containers, allowing for higher transportation efficiency.

Performance Upgrade

The jetting mode can be switched to chain-cutting to adapt to different seabed conditions. Tracks can be adjusted in real time to improve operating capacity, while manipulators can be added for specialised tasks such as gripping, drilling, or cutting. These options enhance efficiency and adaptability in varied trenching environments.

After-sales Maintenance

We provide 24/7 after-sales support, including product leasing, engineering and operational assistance, repairs, maintenance, and upgrades. Subsea Forge is your single point of contact, ensuring worry-free service and reliable performance throughout the system’s life cycle.

Technical Specifications

Working Depth

5-3000m

Weight in Seawater

ROV+Skid Mode≈1.5t ROV+Track Mode≈3.5t CBT Chain Cutting Mode≈28t CBT Jetting Mode≈20t

Dimensions (customizable)

8.1m (length) * 6m (width) * 4.8m (height)

Weight in Air

ROV+Skid Mode≈29t ROV+Track Mode≈32.5t CBT Chain Cutting Mode≈35.5t CBT Jetting Mode≈26.5t

Product Highlights

Sophisticated Cable Detection and Positioning

Equipped with sonar, GPS, USBL, INS, and DVL for combined navigation and positioning. Compatible with powerful cable detection and acoustic imaging devices such as Teledyne and Optimal Ranging, enabling precise cable detection and positioning under demanding sea states .

Cutting-edge Multi-DoF Track Leveling System

Machine width and height can be adjusted for higher stability and improved trenching performance. Heel angle is adjustable to ensure upright trenching, optimising the ROV trencher across different operating modes .

Advanced High-Pressure Jetting System

Jetting swords feature adjustable spacing to achieve different trenching widths. Independent water circuits can be controlled separately, adapting to varied seabed soils and burial depths. Optional independent or integrated depressors extend capability for different cable types .