Power
Operating Depth
Speed
The CHAIN DITCHING ROV VKG1100 is a heavy-duty subsea trenching system designed for cable and pipeline installation, burial, and maintenance projects. Equipped with a powerful hydraulic chain trenching system and dual 410 kW power units, it delivers precise and efficient trench excavation in complex seabed conditions. Designed for offshore energy, subsea power transmission, and telecommunications infrastructure projects, the VKG1100 provides reliable performance at depths of up to 1,000 meters.
Designed to deliver reliable performance, precise control, and operational efficiency across a wide range of marine and underwater applications.
Work capability adapted to deep-sea environments
Capable of handling complex seabed topography and varying seabed hardness conditions, it can efficiently complete operations in challenging waters such as the Qiongzhou Strait and Beibu Gulf
Excellent environmental adaptability
The combined propulsion system integrating track drive and hydroelectric drive enables the equipment to achieve multi-degree-of-freedom movement underwater, maintaining stable working posture and overcoming force-reaction forces for steady operation.
Design and Performance Advantages
Supports two operation modes for submarine cable laying: simultaneous trenching and burial, as well as pre-laying followed by trenching and burial. The excavated trench maintains consistent depth and adjustable uniform width.
Low-power and precise operational characteristics
With the characteristics of "clear visibility, precise exploration, effective control, and low consumption," it serves as a core tool for underwater power transmission, offshore energy development, and the laying and maintenance of submarine optical cables
Discover the core capabilities that enable reliable, efficient, and precise performance across demanding underwater and offshore operations.
Built for demanding subsea installation projects, the VKG1100 combines powerful excavation capability with precise trench control.
Engineered for challenging offshore environments, the VKG1100 maintains stable performance across diverse seabed conditions.
Power：410kW×2
Depth：1000 msw
Speed：48-2114m/h
Dimensions (L*W*H)：8700 ×6500 × 4800 mm
Weight in Air：31.5t
Weight in Underwater：16t
Trenching：depth 3m
Trenching Width：400mm
Maximum climbing angle：15°
Maximum cable passing diameter：300mm
Soil strength：10-400KPa
Ground pressure：Maximum 25KPa
Flow resistance capacity ：＞5Kn
Configuration：Single vertical hydraulic drive chain
Trenching depth：3m (vertical depth)
Ditching chain power：410kW
Ditching chain speed：4m/s
Ditching chain width ：400mm
Ditching chain type：Heavy-duty chain with cutting teeth
Rear mud discharge pump：95kW，900m³/h
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.
