Widershine · Underwater Operations
Inspect. Measure.
Clean & verify.
Bring underwater observation, task-configured measurement and surface cleaning into a planned maintenance workflow. Match G-series ROVs to inspection and intervention, and Q-series cleaning ROVs to assessed hull, dam and aquaculture surfaces.
Three Complementary Tasks
Build the operation around the required outcome
Inspection identifies the condition. Selected sensors and tools support the measurement or handling task. Cleaning addresses suitable surfaces, followed by visual verification and maintenance records.
Visual Inspection & Documentation
Inspect underwater structures, hull areas and aquaculture assets with a task-selected G-series ROV. Capture visual records and revisit areas of interest to support maintenance decisions and the preparation of intervention or cleaning work.
Measurement & Intervention Support
Configure sonar, underwater positioning or manipulator equipment against the measurement and handling task. Select a compatible platform, sensors and recording workflow together; measurement accuracy depends on the selected instruments, calibration and operating conditions.
Cleaning & Maintenance
Deploy a Q-series cleaning ROV for an assessed hull, dam, tank or cage surface. Choose the brush arrangement, mobility and cleaning mode for the geometry and fouling, then document the treated areas and revisit them after cleaning.
Planned Engineering Workflow
Connect observation, cleaning and verification
Use the appropriate platform at each stage. G-series and Q-series ROVs perform different roles; operators coordinate inspection, cleaning and evidence collection under the project’s agreed procedures.
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Step 01
Inspect & define the task
Start with the asset condition, working depth and access constraints. Identify the areas to inspect or clean, review available imagery, and agree the evidence and acceptance criteria needed for the job.
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Step 02
Select the platform & tools
Match a G-series observation or intervention ROV to the inspection task and a Q-series cleaning ROV to the surface. Select cameras, brushes and task-specific payloads around site conditions and the required outputs.
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Step 03
Deploy & establish visibility
Plan launch, tether routing and recovery, then establish a visual baseline. Standard automatic depth, heading and height functions on 3611G30, 3611G50 and 3611G70 assist controlled observation; select sonar separately to suit visibility and target needs.
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Step 04
Document & measure where needed
Record relevant features and inspection areas. For measurement work, define the dimensions or positioning outputs required, select suitable payloads and references, and agree how results will be checked before starting the survey.
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Step 05
Clean the selected areas
Use a suitable Q-series brush configuration and manual control or the selected model’s path-planning capabilities. Adjust the cleaning approach to surface geometry, coating limits and fouling, with discharge handling arranged for the site.
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Step 06
Reinspect & close the loop
Revisit the cleaned areas and record their condition against the agreed acceptance criteria. Compare before-and-after evidence, note any remaining fouling or defects, and identify follow-up inspection or maintenance needs.
ROV Cleaning & Maintenance
Choose a brush platform for the actual surface
The Q-series adds dedicated surface-cleaning equipment to the underwater operation. Q110 offers replaceable, manually adjustable brushes; Q140 adds curved-surface adaptive brushing; Q180 supports right-angle turning and an electrically lifted brush plate.
Thruster-based, non-magnetic adhesion supports the cleaning approach, but surface suitability still depends on geometry, coating condition, fouling and the operating plan. Define the areas to treat, then compare pre-cleaning and post-cleaning records.
Q-Series · Up to 100 m
Dedicated cleaning ROVs for different work areas
Select crawler or driven-wheel mobility, the brush mechanism and cleaning controls against the surface and access conditions. Each model has its own task fit and published cleaning rate.
Crawler Cleaning for Tanks & River Boats
The Q110 pairs a crawler chassis with eight thrusters and replaceable, manually adjustable brush plates. Its non-magnetic thruster adhesion supports cleaning of assessed aquaculture tank and river-boat surfaces, with intelligent and manual cleaning modes.
- Cleaning efficiency
- 400 m²/h
- Brush plate
- Replaceable; manually adjustable
- Surface adhesion
- Thruster-based, non-magnetic
Task fit: replaceable brushes and crawler mobility for tank and river-boat maintenance.
Adaptive Hull & Dam Cleaning
The Q140 combines propulsion and driven wheels with an adaptive electric brush plate for curved surfaces. Non-magnetic thruster adhesion, modular components and intelligent or manual operation support planned hull and dam cleaning.
- Cleaning efficiency
- 400 m²/h
- Brush plate
- Adaptive electric brush
- Cleaning modes
- Intelligent and manual
Task fit: curved-surface brushing and modular maintenance for hulls and dams.
Cleaning Around Complex Geometry
The Q180 adds right-angle turning and an electrically lifted brush plate for hull, dam and cage cleaning. Interchangeable brush types support different tasks; additional positioning and navigation equipment can be selected for the required cleaning workflow.
- Cleaning efficiency
- 500 m²/h
- Brush mechanism
- Electric lifting brush plate
- Navigation equipment
- Selectable configuration
Task fit: turning access and brush-height adjustment around complex underwater areas.
Cleaning rates shown are model planning figures: 400 m²/h for Q110 and Q140, and 500 m²/h for Q180. Actual site coverage depends on surface geometry, fouling, access and operating conditions, with deployment and verification time planned separately.
G-Series · Up to 300 m
Inspection and intervention platforms for the project
Choose an observation or intervention platform before adding mission equipment. Sonar, positioning, manipulators and other tools are selected by model and application rather than assumed across the whole range.
Observation & Routine Checks
A compact observation platform for aquaculture monitoring, underwater search and visual recording. Real-time images and vehicle status support operator-led checks, with automatic depth, orientation and height functions.
Select when observation, manageable deployment and repeat visual checks are the main tasks.
Inspection & Retrieval Tasks
A tethered intervention platform for underwater inspection, search and salvage. Select sonar, positioning and manipulator equipment to match target location, documentation and retrieval requirements.
Select for camera-led inspection and task-specific search or handling equipment.
Modular Light Intervention
A modular platform for observation, search and light intervention, including hydropower-related work. Its eight-thruster arrangement and automatic depth, heading and height functions support controlled maneuvering with selected mission payloads.
Select where payload integration and controlled movement support inspection and light work.
Marine Engineering Intervention
A larger modular platform for marine exploration, hull inspection and underwater intervention. Common interfaces support tool changes, while configurable sonar and manipulators can be matched to the project’s handling and observation tasks.
Select for broader marine inspection and intervention requiring task-specific tools and support arrangements.
Application-Based Planning
Match the combination to your asset
The following combinations provide starting points for engineering planning. Final platform, brush and sensor choices depend on site conditions and the outputs agreed for the job.
Ship hulls & port-side operations
Use 3611G400 for hull inspection and tool-configured intervention, with modular interfaces supporting changes between tasks. For suitable hull surfaces, 3611Q140 offers an adaptive brush plate for curves; 3611Q180 adds right-angle turning and an electrically lifted brush for more complex areas. Match brushing and thruster-based adhesion to the coating, access and local in-water cleaning requirements.
Dams & hydropower structures
3611G70 supports hydropower observation and light intervention, with modular sonar, positioning and manipulator configurations. 3611G50 is an alternative for underwater inspection with task-specific target-location or retrieval tools. For suitable dam surfaces within the cleaning depth rating, choose 3611Q140 for curved-surface brushing or 3611Q180 where turning and brush lifting help access complex areas.
Aquaculture tanks & cages
Pair 3611G30’s real-time underwater images and automatic depth control with periodic tank or cage observation. Select 3611Q110 for suitable tank surfaces where replaceable, manually adjustable brushes and crawler mobility fit the task. For suitable cage-cleaning work, 3611Q180 offers interchangeable brushes and right-angle turning. Plan contact with surfaces, stock protection and fouling discharge around the facility’s operating conditions.
Configuration & Site Readiness
Specify the operation, not just the vehicle
Depth and tools are only part of the selection. Agree access, working conditions, surface treatment, evidence requirements and the support arrangements before deployment.
Surface, coating & cleaning permissions
Check brush and coating compatibility, adhesion, surface geometry and access before contact cleaning. Establish the fouling-discharge or collection arrangements required at the site and obtain the necessary in-water cleaning approvals.
Depth, visibility & deployment support
The Q110, Q140 and Q180 cleaning ROVs are rated for depths up to 100 m; the featured G-series ROVs are rated to 300 m. Match cameras and visibility aids to the task, and plan electrical supply, launch equipment, tether routing and recovery.
Sensors, tools & measurement outputs
Select compatible sonar, underwater positioning, manipulators and measurement payloads for the chosen model. Agree measurement references, calibration and acceptance criteria. Match the final configuration to the required engineering outputs.
Coverage, verification & maintenance
Plan coverage around geometry, fouling, access and operating conditions, allowing time for repositioning and post-cleaning checks. Capture before-and-after records, document remaining defects and prepare tools and equipment for the next deployment.
Plan your underwater inspection and cleaning project
Tell us about the asset, working depth, access conditions, surface or coating, fouling level and required inspection or measurement outputs. We can help you review suitable G-series and Q-series platforms and task configurations.
Email: business@widershine.com · WhatsApp: +86-186-2800-0208