Crab Platform

Heavy-duty magnetic crawler robot for harsh environments. Exceptionally robust hold on steel surfaces.

The Crab Light platform is a robotic system designed to perform various vessel maintenance tasks underwater with the lightweight equipment (up to 1,000 kg), even in the harshest environments.

The Crab robot operates on any large steel magnetic surface, securing itself with magnets on its six legs. It moves along the vessel’s hull both above and below the waterline, reaching depths of up to 150 meters.

crab street

Advantages

First Prototype

Here you can see our Crab Light Robot walking

crab_move

… and spraying

crab_spray

We are now teaching it to work underwater and spray with a high pressure.

Crab Light Specifications

Specification Details
Securing The Crab robot is secured to metallic surfaces with magnets in its legs.
Each magnet provides a holding force of 1,000 kg to the vessel’s hull.
Operating Surfaces Flat steel surfaces, fixed steel platforms, and jack-up rigs.
Movement 33m per minute (2 km/h) on clean surfaces
Depth Up to 150m (upgradable to 1500m).
Wave Tolerance Up to 3.5m Hs (potentially higher).
Wind Resistance Storm wind 100 km/h
Temperature Range -5°C to +60°C (upgradable).
Weight Less than 300kg.
Payload Capacity Up to 1000kg.
Size 100 x 100 x 50 cm.
Navigation Onboard cameras, visual and inertial navigation systems,
and 3D model-based position verification.

Crab Work Specifications

Specification Details
Securing The Crab robot is secured to metallic surfaces with magnets in its legs.
Each magnet provides a holding force of 3,000 kg to the vessel’s hull.
Weight 900kg.
Payload Capacity Up to 3000kg.
Size 170 x 170 x 70 cm

All other specifications are identical to those of the Crab Light.

Safety Features

For Oil Rigs

Underwater Steel Structures Maintenance


  • Biofouling Cleaning with a cavitation tool - the gentlest method for the coating, effective on the heaviest biofouling
  • Inspection - Non-destructive surface testing (ultrasonic testing, visual inspection, and CP testing), salt treatment
  • Surface Repair - mobile cofferdam installation, coating removal, clad welding, corrosion-resistant coatings application, emergency temporary repairs

For Vessels

Hull Maintenance


  • Biofouling Cleaning with a cavitation tool - the gentlest method for the coating, effective on the heaviest biofouling
  • Inspection - Non-destructive surface testing (ultrasonic testing, visual inspection, and CP testing), salt treatment
  • Surface Repair - mobile cofferdam installation, coating removal, clad welding, corrosion-resistant coatings application, emergency temporary repairs

Custom Tools and Integrations

You have specific requirements? We've got a solution for you.


Our team comprises talented software and mechanical engineers who tackle the most challenging technical tasks with ease.


We design bespoke tools tailored for your ROV systems or the Crab Robot.


Additionally, the Crab Robot or ROV system can be fitted with a third-party payload of your choice, accommodating weights between 1000 and 3000 kg. This includes lights, sensors, tools, or cargo.

Contact Us

Let us know your requirements