Max Power R300 Electro Hydraulic Retractable Thruster

Max Power R300 Electro Hydraulic Retractable Thruster

The Max Power R300 electro hydraulic retractable thruster combines the R300 retractable thruster architecture with an electro-pump operating configuration. The unit deploys when lateral thrust is required for maneuvering and retracts within the hull when it is not in use, maintaining a clean hull profile without the drag associated with an exposed thruster assembly.

This version should be distinguished from other configurations within the R300 range. It uses an electro-pump system and is available with 15cc or 21cc hydraulic motor options, each with its own hydraulic power and flow requirements.

15cc vs. 21cc Motor Options

Selecting the correct motor configuration is essential because the R300/15 and R300/21 do not share the same hydraulic specifications.

The R300/15 uses a 15cc hydraulic motor with Duo 3-blade propellers. This configuration is rated at 11 kW / 14.74 HP hydraulic power, with a hydraulic flow requirement of 29 LPM at 240 bar.

The R300/21 uses a 21cc hydraulic motor, also with Duo 3-blade propellers. This configuration is rated for 25 kW maximum hydraulic power, with a hydraulic flow requirement of 44 LPM at 240 bar.

Both configurations list a thrust specification of 11 kg/kW.

Retractable R300 Architecture

The R300 uses an electric/manual opening and closing architecture. When deployed, the thruster provides lateral thrust for vessel maneuvering. When the system is no longer required, the thruster retracts into the hull.

This configuration differentiates the R300 from a conventional fixed tunnel thruster and makes the retracting mechanism, available hull space and associated operating system important parts of the installation.

Key Specifications

R300 Dimensions

Before Ordering

Confirm whether the installation requires the 15cc or 21cc R300 configuration before ordering. The difference affects hydraulic power and flow requirements: the R300/15 specifies 29 LPM, while the R300/21 specifies 44 LPM, with both configurations operating at 240 bar.

The electro-pump configuration, available installation space, R300 dimensions and electric/manual opening and closing architecture should also be checked against the vessel’s system.

Technical Documents

For detailed dimensions, installation requirements and technical specifications, review the available R300 documentation:

Technical_Drawing_R300

Product_Data Sheet_R300

Installation Manual – R300 [EN]

To compare this retractable configuration with other thruster designs, review our guide to tunnel, external and retractable thrusters. You can also learn more about electric vs. hydraulic bow thrusters and how a bow thruster works inside the system.