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Welcome to KeelCrab

The following steps are focused on our products and on all the opportunities of this business. Start from the first one:

First step - How does the KEELCRAB work?

The 99,9% of QUESTIONS you want to ask:


KeelCrab and Traditional method: alternative or integration?

Traditional methods offer complete and manual cleaning operations, sometimes underwater or sometimes across hauling and launching activities. KeelCrab is a new method for leisure boats hull that does want to integrate the ordinary maintenance by reducing extraordinary interventions in the medium term. For this reason divers and shipyards integrate our system into services offered to customer.

How does the drone collect dirt and doesn't pollute the environment?

We provide a nylon filter bag in several micrometer size (180 micron or 50 micron) to recover waste material, algae or vegetation produced by the cleaning operation.

What does the drone clean?

The drone cleans 95% of the hull surface: hull and rudder. Floating discs allow the drone to move vertically from hull to keel and rudder.

How do I clean the propeller?

In order to maintain the propeller clean (aft feet as well), we provide the Ultracrab. It's an ultrasonic antifouling device easy to install on the stern: the constant propagation of high frequency and variable power sound pulses prevents algae formation.

Can I make inspections?

Thanks to KeelCrab App available for IOS and Android Store, you can watch the hull inspection from the KeelCrab camera and record it.

Does it remove barnacles?

Our brushes are designed to remove algae vegetation and collect it in bag without removing antifouling.

A regular service prevents the growth of barnacles. 

How long does it take to clean?

Considering a 2,5 m²/min velocity, the drone cleans a 12 meters boat lenght (40 feet) in 1,5 hour, a 18 meters boat lenght (60 feet) in 2 hours, a 24 meters boat lenght (80 feet) in 3 hours.

Battery or Power supply?

Keelcrab is powered with a 20 mt kevlar cable and uses a plug suitable from 110 V to 220 V for the standard of marinas worldwide. We provide a standard plug for marinas worldwide, plus the possibility to request a kit for inverter generator to use remotely. The only alternative is using an electric generator: solar panels currently are not able to support the power usage of the drone.

Automatic or remote controlled?

We provide a remote controller connected to the drone with 7" display, joystick and 7 meters cable. You can also stream the camera feed to your smartphone with the Wi-Fi Mobile Connectivity kit (standard on the Pro Pack).

How long do the brushes last?

We provide three different brushes for three different levels of cleaning: white soft nylon brush; yellow medium nylon brush and stainless brush.

Before replacement the brushes last about 100 hours, longer if the cleaning is performed on regularly maintained boats and not on hard fouling.

Try the 360° Full Experience

We have recently recorded a cleaning cycle using Video 360° tecnology. View Keelcrab in action moving video or using Virtual Reality glasses (suggested)


Do you have other questions about the product?


Tell us now in the contact form below all your requests about the product before passing to the second step. If you already want to know about business and investment opportunities move directly to part 2:

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AEFFE S.R.L.

Via Rezzonico, 39 22100 Como Italy

Email: info@keelcrab.com | Tel: +39 031 890525 | Skype: keelcrab

P.IVA: 03385790138 | REA CO-311796 | Cap. Soc. € 22.405,28

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