Power
Operating Depth
Speed
The Subsea Trencher VYL800 is a heavy-duty deepwater trenching system designed for subsea cable and pipeline installation, burial, and maintenance operations. Equipped with powerful dual pump units, dual seven-axis robotic arms, and an advanced jetting system, it delivers efficient trenching performance in a wide range of seabed conditions. With operating depths of up to 2,000 meters, expandable to 3,000 meters, the VYL800 provides a reliable solution for offshore energy, telecommunications, and subsea infrastructure projects.
Designed to deliver reliable performance, precise control, and operational efficiency across a wide range of marine and underwater applications.
High Working Depth
Base depth: 2000 msw, with support for 3000 msw customization
Suitable for geological applications
Compatible with various seabed substrates including sand, silt, and non-cohesive/cohesive soils
Efficient Operations
Dual-arm jetting tool (below seabed), cable clamping mechanism
Agile Maneuverability
Switchable between track and skid modes for seabed navigation
Discover the core capabilities that enable reliable, efficient, and precise performance across demanding underwater and offshore operations.
Built for demanding subsea installation projects, the VYL800 delivers powerful and efficient trenching performance across diverse seabed conditions.
Engineered for complex offshore environments, the VYL800 combines intelligent tooling, powerful propulsion, and flexible deployment capabilities.
Power：800Hp/300kW x2
Depth：2000msw（option up to 3000msw）
Speed：0-2.2km/h
Dimensions (L*W*H)：5580 × 4450 × 3300mm
Airweight：17.0t
Underwater weight：2.0t
Propeller：THR.Y420 × 10
Jetting Tool Configuration：Equipped with a dual-arm jetting tool featuring forward and downward nozzles (for sub-seabed operations) and a cable-pulling mechanism
Trenching Width：100-600mm
Trenching Depth：0-3m
Water Pump Flow Rate：1000m³/h x2 (at 6.5bar pressure) low-pressure pump unit
400m³/h x2 (at 15bar pressure) – high-pressure pump unit
Pump Pressure：6.5bar (at 1000m³/h x2 flow rate) – low-pressure pump unit
15bar (at 400m³/h x2 flow rate) – high-pressure pump unit
Mooring Line Tension (Forward/Rear)：≥2t
Mooring Line Tension (Lateral)：≥0.7t
Mooring Line Tension (Vertical)：≥1.4t
Seven-axis robotic arm：× 2
Front Jetting：Dn40 Spray Nozzle
Caterpillar tracks：Equal-width tracks ×2
Skids (optional)：Equal-width skids ×2
Armored cable cutting tool (optional)：38mm-100mm
Soft cable cutting tool (optional)：38mm-100mm
We deliver innovative underwater robotics and subsea engineering solutions that enable safer, smarter, and more efficient offshore operations. Combining independent R&D, advanced manufacturing, and extensive project experience, we support customers throughout the entire lifecycle of offshore and deep-sea projects.
Contact VVLAI’s experts to find the right underwater robotics and marine engineering solutions for your next project.
