Hydromaster

Tunnel Thrusters

Robust tunnel thrusters for precise maneuvering

Hydromaster’s range of tunnel thrusters are fitted with standard Hydromaster gearboxes producing maximum side thrust, either used as a mooring thruster or to assist the vessel to maintain position on DP vessels. A large reduction ratio allows for relatively large propeller diameters, delivering higher thrust at lower input power.

The tunnel thrusters are fitted with a wear ring in a steel tunnel. At standard lengths or lengths tailor made to your vessel. Also available in aluminium.

Electric driven

  • Equipped with an AC variable speed drive 
  • Vertical or horizontal electric induction motor
  • Option for Permanent Magnet (PM) motor


Hydraulic driven

  • Fitted with a hydraulic motor 
  • Available as a complete package with pump-motor or engine combination and tank unit


Engine driven

  • L-Drive or Z-Drive configuration
  • Connected with a cardan shaft to a diesel engine fitted with a reversible gearbox

Remote control panel

A drop-in control panel for installation in the wheelhouse desk(s), offering full functionality:

  • Push buttons for proportional speed control (port & starboard)
  • Emergency stop
  • Thrust indication
  • Dimmer and buzzer for clear operator feedback

Key features

  • Driven by electric motor, hydraulic motor or diesel engine
  • With steel or aluminium tunnel
  • Standard length tunnel or length tailored to your vessel beam
  • Sloped tunnel ends if required to cater for draft restrictions
  • Propeller diameter optimised for your application