Oceanvolt offers an intelligent solution for electric motors on shaft lines. Instead of increasing the voltage of a single motor to increase power, Oceanvolt synchronizes the simultaneous operation of two or three modular motors in 48 V. This is the AXC Modular Shaft.

Oceanvolt has developed a very special type of electric shaft motor: a modular motor. The basic module provides 12 kW at 48 V. If you need more power, combine a second 12 kW model and you get 24 kW at 48 V. Need even more? Add a third module and you get 36 kW nominal, enough to propel a 50' sailboat or a 50 to 60' catamaran hull, still in 48 V.

These modules are water cooled and can share their secondary cooling circuit (sea water).

The Finnish company is particularly keen on 48 V, a voltage which, although not without risks, does not entail any fatal risk for a clumsy user. Oceanvolt is well known for its electrically steerable saildrives, which offer good hydro-generation capabilities, a very interesting feature for sailboats, Oceanvolt's primary market.

How does it work?

At the heart of this AXC engine is a concept and a computer. The concept is that of a modular motor with a hollow rotor allowing the passage of a primary shaft.
When the two or three modules are mounted, the assembly resembles a skewer of modules, all three crossed by the primary shaft. 

This shaft is then aligned with the propeller shaft to which it is attached via a standard coupling, such as the one in place on the boat.

An electronic controller then synchronizes these motors, with start-up, acceleration and deceleration being managed in a completely transparent manner for the two or three different motors.

The AXC Modular motors are of course capable of regeneration, even though they do not have the same electric/electronic propeller pitch management system, a system that has made the Servoprop so successful.

Oceanvolt is distributed in France by E-nav Systems