Main Thrusters

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Standard & Customised Tunnel Thrusters

Graphics: Standard Thruster FU 74
Standard Thruster FU 74

Brunvoll Standard & Customised Tunnel Thrusters are designed for the most demanding requirements according to North Sea offshore standards and are used on all types of ships.

Graphics: Standard Thruster FU 74
Standard Thruster FU 74

Brunvoll's tunnel thrusters feature a special blade design to avoid cavitation and ensure optimum thrust. The compact design of hub and gear house allows for the thruster unit to be mounted in narrow areas of the vessel’s hull in addition to high thrust values.

All tunnel thrusters are delivered with changeable bearings of high performance self-lubricating and wear resistant bearing material. This allows for less wear and tear and easier maintenance.

Graphics: Customised Thrusters
Customised Thrusters

Product Range

Graphics: Customised Thrusters
Customised Thrusters
Model Propeller Diameter (mm) Power Range (kW)
FU 37 850 75 - 200
1.000 100 - 250
FU 45 1.225 185 - 300
1.375 275 - 450
FU 63 1.550 400 - 700
1.750 550 - 900
FU 74 2.000 800 - 1.400
FU 80 2.250 1.100 - 1.500
FU 93 2.500 1.400 - 2.200
FU 100 2.750 1.800 - 2.500
FU 115 3.000 2.000 - 3.500
FU 120 ¹ 3.500 3.000 - 4.000
¹ under construction

Low Noise Tunnel Thrusters

Graphics: Low Noise Thruster FU 37
Low Noise Thruster FU 37

Thruster noise is a major problem for crews. The stress and discomfort it causes may threaten both performance and safety on board. Also, quieter manoeuvring means better sleep, improving the alertness and efficiency of the crew. And passengers enjoy a new degree of comfort.

Graphics: Low Noise Thruster FU 37
Low Noise Thruster FU 37

Noise levels of 75-88 dB(A) are typical in cabins next to or above conventional tunnel thrusters. Brunvoll’s advanced technology, where the thruster is resiliently mounted within a full length double tunnel, can cut this by up to 15 dB(A). Combined with other measures, noise reductions of up to 20-25 dB(A) have been verified.

Graphics: Noise Reduction Comparison
Noise Reduction in Comparison

Product Range

Model Propeller Diameter (mm) Power Range (kW)
FU 37 1.000 100 - 250
FU 45 1.375 275 - 450
FU 63 1.750 550 - 900
FU 74 2.000 800 - 1.400
FU 80 2.250 1.100 - 1.500
FU 93 2.500 1.400 - 2.200
FU 100 2.750 1.800 - 2.500
FU 115 3.000 2.000 - 3.500
FU 120 ¹ 3.500 3.000 - 4.000
¹ under construction

Azimuth Propulsion Thrusters

Graphics: Azimuth Thrusters (Push Ducted, Pull Open and Rim Driven)
Azimuth Thrusters (Push Ducted, Pull Open and Rim Driven)

The dedicated Brunvoll Azimuth Propulsion Thruster is based on Brunvoll's extensive in-house experience with design, production and servicing of Tunnel and Azimuth Thrusters since 1965.

Graphics: Azimuth Thrusters (Push Ducted, Pull Open and Rim Driven)
Azimuth Thrusters
(Push Ducted, Pull Open and Rim Driven)

Brunvoll Azimuth Propulsion Thrusters are available with controllable pitch or fixed pitch propellers, either with or without propeller nozzle, and can be mounted both bolt-in or weld-in. Power can be transmitted via L-drive or Z-drive.

Also available are Azimuth Propulsion Thrusters based on the Rim Driven Thruster (RDT) concept with Permanent Magnet (PM) motor technology.

Product Range

Model Propeller Diameter (mm) Power Range (kW)
AU 63 1.650 400 - 800
AU 74 1.900 800 - 1.200
AU 80 2.100 1.000 - 1.400
AU 93 ¹ 2.500 1.500 - 1.900
AU 100 2.650 1.600 - 2.000
AU 115 ¹ 3.000 2.000 - 3.000
¹ under construction

Retractable Azimuth Thrusters

Graphics: Retractable Azimuth Thrusters
Retractable Azimuth Thrusters (Standard / CombiThruster)

Brunvoll Retractable Azimuth Thrusters are used for dynamic positioning on offshore vessels. The units have proven their worth in a variety of demanding applications, from research ships and coast guard vessels to offshore supply vessels and shuttle tankers operating in the harsh climate of the North Atlantic. They have even proven invaluable for auxiliary and emergency "take home" propulsion.

Graphics: Retractable Azimuth Thrusters
Retractable Azimuth Thrusters
(Standard / CombiThruster)

Reliable, Proven & Flexible Technology

  • Almost an industry standard for shuttle tankers
  • Shock-qualified thrusters available for naval vessels
  • A popular choice for product tankers, reefers, chemical tankers and container ships in the merchant navy
  • Can serve as an take-home propulsion
  • A special version, the Combi­Thruster, works as a tunnel thruster in upper position and as an azimuth thruster in lower position

Product Range

Model Propeller Diameter (mm) Power Range (kW)
AR 63 1.650 500 - 880
AR 74 ¹ 1.900 900 - 1.200
AR 80 2.100 1.000 - 1.500
AR 93 ¹ 2.500 1.500 - 1.900
AR 100 2.600 1.800 - 2.200
AR 115 ¹ 3.000 2.300 - 3.000
¹ under construction

Rim Driven Thrusters

Graphics: Rim Driven Thruster (RDT)
Rim Driven Thruster (RDT)

Rim Driven Thrusters (RDT) are electrically driven with a permanent magnet (PM) motor. PM technology provides greater flexibility in selection of motor speed (number of motor poles) and a motor with high efficiency running with a lower temperature.

Graphics: Rim Driven Thruster (RDT)
Rim Driven Thruster (RDT)

Higher efficiency, less environmental impact

The Brunvoll Rim Driven Thruster saves energy, offering higher propeller efficiency and lower environmental impact with exceptionally low noise. The RDT concept creates exciting potential for both manoeuvring and main propulsion.

Minimised Maintenance

The thruster, propeller and motor are in one compact unit – there is no need for an external motor, shafts or couplings. The bearing design for the RDT eliminates the need of oil lubrication and there are no dynamic seals. Hence, the bearings (patents pending), are designed to minimise maintenance costs and eliminate any oil pollution.

Product Range

Model Propeller Diameter (mm) Power Range (kW)
RDT 800 800 200
RDT 1000 1.000 300
RDT 1250 1.250 400
RDT 1500 1.500 600
RDT 1800 1.800 1.000
RDT 2100 2.100 1.600

Azipull Propulsion Thrusters

Graphics: Azipull Thrusters (Open, Rim Driven)
Azipull Thrusters (Open, Rim Driven)

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Graphics: Azipull Thrusters (Open, Rim Driven)
Azipull Thrusters (Open, Rim Driven)

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