Power
Operating Pressure
Cutterhead Rotational Speed
The SJT850 Vertical Hydraulic Dual Cutter Suction Machine is a high-efficiency underwater soil excavation device designed for clearing and excavating hard soil layers, clay layers, and gravel layers. Equipped with an independent underwater hydraulic power unit, this machine delivers powerful cutter suction capabilities, enabling fast and efficient soil excavation, particularly suitable for applications such as soil removal between bridge piles.
Combining intelligent technology, robust construction, and mission-ready capabilities to meet the challenges of complex subsea operations.
Wide Range Of Suitable Scenarios
Sufficient self-ballast, adaptable to various underwater operation scenarios
High-Load Operating Conditions
Base total power 55 kW, expandable up to 400 kW, with a wide power adjustment range
Strong Dredging Force
Operating pressure up to 16 MPa, capable of handling cutter suction dredging operations in complex underwater environments
Stable And Durable Performance
Low-speed, stable design with a larger slurry discharge pipe diameter to reduce energy consumption and equipment wear
Designed to perform a wide range of underwater tasks, delivering the versatility, precision, and reliability required for complex subsea operations.
Built for demanding underwater excavation projects, the SJT850 delivers strong cutting performance for hard and complex seabed conditions.
Equipped with an advanced pumping system, the SJT850 ensures fast material transport and improved project efficiency.
Dimensions (L*W*H) ：2730 × 1200 × 4300 mm
Weight：5t
Total Power：55 kW (maximum 400 kW)
Voltage：380 VAC
Operating Pressure： 16 Mpa
Cutterhead Specifications：φ850 mm
Cutterhead Rotational Speed：31 r/min
Slurry Discharge Pipe Inner Diameter：250 mm
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.
