New · Hull grooming benefit model

AI Inspections & Hull Cleaning, In Transit

01 / CRABI Robotics

Meet CRABI

The CRABI system is a fully autonomous marine robotic platform designed to conduct in-transit cleaning & inspection of marine vessels, removing biofouling. Based on technology spun out of MIT, by cleaning and measuring hulls continuously, CRABI guarantees optimum fuel efficiency for your fleet with no off-hire time or extended port stays.

Render of CRABI attached to the hull of a tanker
  1. 1Docking station
  2. 2CRABI
  3. 3Ship hull

Docking station

Deck-mounted launch and recovery unit that docks CRABI on board.

CRABI

Max ship speed
24 knots
Cleaning rate
400 m²/hr

Ship hull

Cleaning
Coating-safe, every week
Compatible with
  • Self-polishing coatings
  • Fouling-release coatings, incl. silicone
  • Hard coatings
02 / Technology

Three technologies that make it possible

CRABI in its shell on a ship hull

Attach

Active permanent magnet control, capable on any geometry.

Stay

Wing surfaces turn flow into attraction force as speed rises, up to 24 knots.

Work

Waterjets clean without touching the surface or its paint. Future systems will paint, weld, and repair.

03 / Impact

For every ship, grooming can

01 · Fuel

Reduce fuel consumption

9–17%

lower hull resistance reduces fuel costs from ~$400,000 to $4,000,000 / yr

02 · Emissions

Lower greenhouse gas emissions

2,000–20,000

Reduces CO₂ emissions by up to 2,000 to 20,000 tons/year

03 · Compliance

Enable CII, ETS, & Fuel EU Maritime Compliance

>$250,000

Take CII rating from a D or an E to a C, save >$250,000 in ETS allowances

Render of CRABI attached to the hull of a container ship at sea
04 / Savings calculator

What would grooming save on your vessel?

Fuel, dock and compliance value of grooming every 10–14 days, against your current practice. Open the full model to set your own vessel, speed, fuel burn, bunker price and docking cycle.

Open the full model
Example · Container 4,000 TEU · default inputs
—gross annual benefit, per vessel
TodayGroomed
—fuel saved / yr
—of fuel burn
—CO₂ avoided

Model outputs on literature-calibrated inputs, not measured returns.

05 / Why CRABI

Benefits

01

Save fuel

High-frequency grooming saves fuel

02

Minimize downtime

Minimizes vessel downtime compared to existing cleaning methods

03

Simplify cleaning

No complex cleaning logistics or scheduling like port-specific cleaning

04

Prolong coating life

Gentle grooming avoids damage from abrasive traditional cleaning technologies

05

Help the environment

Reduces Greenhouse gas emissions

06

Save inspection costs

Automatic hull inspection reports

07

Fight invasive species

Access to invasive species controlled harbors

08

IMO compliance

Enables IMO CII regulation compliance

Together, We Can Turn the Tide

Feel free to reach out to us for further information.

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