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The Jastram azimuth grid thruster is capable of providing highly accurate dynamic positioning, responsive steering and emergency propulsion.
Mounted flush to the bottom of the vessel, it has no protruding parts which could be damaged in shallow water. A removable grid protects the horizontally mounted propeller. Smaller parts and sand are washed through the large-volume housing.
A special propeller generates effective thrust with a high volume at a low pressure.
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The Veth Steering Grid is the most recent addition to the Veth product line. It is a 360° rotating bow thruster with a thought through construction.
The Veth Steering Grid has an innovative mechanical design, in which many successful parts of the Veth Bow Thruster have been used such as the steering worm wheel and main gearing. The easy to build in unit takes a limited amount of space. Thanks to the hydrodynamically optimised unit the Veth Steering Grid is very effective and can be delivered in a range from 300 to 650 hp.
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OMEGA 360°Azimuth Thruster
OMEGA channel thrusters are capable of rotating through 360° and
available as 2, 3 or 4 channel designs. These units are equipped with a
'Bollard Pull' system with a capacity of 24.9 lbf/kW. They are available with
power ratings ranging from 100 to 1500 kW and can also be used as
propulsion engines for continuous operation. The thrusters can be driven
hydraulically, by a diesel engine or by an electric motor.
OMEGA thrusters are state-of-the-art units constructed from top-quality
materials. These advanced thrusters are equipped with an MnBr/CuNiAl
propeller, a high-grade spiral bevel gear and a stainless anti-wear ring
(optional) around the propeller to avoid erosion. A special filter in the
suction inlet prevents foreign objects from damaging the unit.
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Combined Azimuth Retractable / Tunnel Thruster
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Jastram transverse thrusters are made from high-grade certified materials and are designed individually according to the given installation conditions.
Classification certificates for any classification society can be delivered for the whole thruster system.
Vertical or horizontal mounting or any other installations for electric, hydraulic or diesel engine drives are available.
Drive shaft extensions for restricted space in stern installations and detachable systems for workboats to allow servicing without docking are examples of our ability to meet customer requirements.
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The Veth-Jet bow thruster installation
The Veth-Jet bow thrusters have given Veth Motoren, the inventor of this system, an international reputation. Worldwide more than 1000 units are working now.
The advantages of the Veth-Jet
There are many reasons why to choose for a Veth-Jet bow thruster installation. The main reasons are o.a.:
- Maximum thrust at minimum draught
- 360° thrust
- No protruding parts under the vessel
- High thrust about 11 kg/kW
- It is possible to manoeuvre the vessel at maximum power
- Solid construction, so long lifetime
- The 3 and 4 tunnel system can also be used as auxiliary propulsion and/or brake
- Fast steering time in about 6 to 7 seconds from PS to SB
- The propeller only turns in one direction, so reverse clutch is not necessary
The Veth-Jet panels are developped by our own electronics department and fabricated at our own premises. The electronics department uses all the potential of today's technology. The Veth electronics make driving and control simple, well-arranged and reliable
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The Veth-Jet bow thruster installation
The Veth-Jet bow thrusters have given Veth Motoren, the inventor of this system, an international reputation. Worldwide more than 1000 units are working now.
The advantages of the Veth-Jet
There are many reasons why to choose for a Veth-Jet bow thruster installation. The main reasons are o.a.:
- Maximum thrust at minimum draught
- 360° thrust
- No protruding parts under the vessel
- High thrust about 11 kg/kW
- It is possible to manoeuvre the vessel at maximum power
- Solid construction, so long lifetime
- The 3 and 4 tunnel system can also be used as auxiliary propulsion and/or brake
- Fast steering time in about 6 to 7 seconds from PS to SB
- The propeller only turns in one direction, so reverse clutch is not necessary
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BRUNVOLL provides complete drive system packages for thrusters. Electric, Hydraulic or Diesel drives.
Make of el-motor or, diesel engine to customer's choice.
As a total system supplier, we have full knowledge of all components in the installation. Thus, service and support can be obtained from one responsible supplier.
Electric drives
Constant or variable speed el-motors with starters/controllers.
Diesel drives:
Diesel engines with controls and monitoring systems as well as different mounting and shafting arrangements.
Hydraulic drives:
Hydraulic pump/motor systems with fixed or variable dissplacement units.
All thrusters available as c.p.p or f.p.p. units.
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Veth tunnel thruster
For ships requiring maximum transverse force, the Veth tunnel thruster has repeatedly proved to be the best choice.
The Veth tunnel thruster consists of a tail-end with a vertically mounted NiAlBz propeller with built-in reduction. For this product too, the up-to-date design guarantees maximum operational reliability.
Besides the fixed pitch tunnel thrusters also controllable pitch units can be delivered on request. The blades are changed in pitch hydraulically.
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The standard blades areskewed and feature rounded tips for optimum thrust efficiency.
The large blade area and the shape of the blades keep cavitation volume low to minimize noise and achieve optimum comfort levels inside the boat. The completely flat surface of the blades minimizes trailing under sailing
conditions and reduces the peak load on the thruster unit, thereby significantly extending the useful service life of the hydraulic system and the unit as a whole. The blades are bolted to the blade carriers and can be replaced inside the tunnel. The propeller can be designed for special applications on request.
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WITH TUNNEL EXTENSIONS CUT TO SUIT HULL LINES
AND PROTECTION GRIDS
Rigid tunnel construction
Ring stiffeners
Modularized motor foundation
Landing bars adapted to tank top and hull frames
Tunnel extensions customized to suit to the hull lines
Protection grids in the tunnel entrances
Propeller blade design on request
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SCHOTTEL Rudderpropellers (SRP) are combined propulsion and steering systems rated at up to 6000 kW, which convert the engine power into optimum thrust. As the underwater components can be steered through 360 degrees, the full propulsive power can also be used for manoeuvring and dynamic positioning of the ship.
Maximum manoeuvrability, optimum efficiency, economical operation, space-saving installation and simple maintenance - these are just a few of the outstanding features of this robust and reliable propulsion concept, which has proved its worth under tropical and arctic conditions in vessels of all kinds all over the globe.
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Brunvoll's patented Low-Noise Thruster solution with full length double tunnel resiliently mounted, reduces noise by 11-15 dB(A) and cause less vibration.
Thruster noise represents a major problem for crews. The stress and discomfort it causes may threaten both performance and safety on board.
Quieter sailing means better sleep, improving the alertness and efficiency of the crew. Passengers enjoy a new degree of comfort.
Brunvoll introduced the low-noise thruster in 1977. Through four technological generations we have refined our patented solutions into a proven concept.
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Noise-reduced manoeuvring systems from Jastram meet the international mega-yacht industry's demand for the ultimate comfort.
Active and passive low-noise thrusters from Jastram offer sophisticated technologies for silent manoeuvring in ports and during offshore dynamic positioning.
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* For output up to approx. 558 kW (800 HP)
* Power source: hydraulic or diesel engine
* Horizontal bronze propeller
* Replace propeller without docking
* Propulsion in every position, rotates through 360 degrees
* Propeller and steering grid are manually accessible
* No shafts or protruding parts
* Small dimensions, including height
* Can be supplied with path-dependent or forward controls
* Suitable for continuous use
* Minimal maintenance costs
* Competitive price and low installation costs
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It functions inside of the ship in its highest position, and underneath the vessel in its lowest position. In the latter case it can rotate a full 360 degrees and can be used to provide (emergency) propulsion.
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* For output up to approx. 558 kW (800 HP)
* Power source: electrical, hydraulic or diesel engine
* Horizontal bronze propeller
* Replace propeller without docking
* Propulsion in every position, rotates through 360 degrees
* Inspection hatch for access to propeller and steering grid
* No protruding parts under the ship
* Small dimensions, including height
* Can be supplied with path-dependent or forward controls
* Suitable for continuous use
* Minimal maintenance costs
* Competitive price and low installation costs
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Hyundai thruster cab be fitted to a wide range of vessels operating in all over the world. The tunnel thruster is designed for giving max. Side thrust force to the ship in maneuvenng condition. Thrust system normally consists of the thruster unit with tunnel, hydraulic equipment, remote controller and pime mover.
Long service life and easy maintenance are key factors in the design and development of Hyundai Thruster.
As a total system supplier, Hyundai provides complete drive system packages for thruster, such as electric or hydraulic drives and Hyundai Thruster are available in both controllable pitch(CP) and fixed pitch(FP) propellers.
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Global Marine Engineering BV, based in Heijningen-Holland, is a very experienced technical company with a history of over 25 years and active in manufacturing drive systems, clutches and gearboxes for industrial and marine applications. Since 1990 they developed bow thrusters for pleasure craft and commercial craft markets.
The existing performance range is from 10kW - 500kW with fixed Kaplan type propellers running in steel, aluminium or FRP tunnel structures for both bow and stern thrusters. The units are built according the requirements of all major marine societies such as ABS, BV, DNV, GL and LRS and available with Class certificate.
On the drawing board is now a range swing-type, retractable thrusters with a range of 10kW - 100kW and propeller diameters of 250 - 700mm.
The drive system is hydraulic or AC-electric motors, proportionally operated.
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* For output up to approx. 1100 kW (1500 HP)
* Power source: electrical, hydraulic or diesel engine
* Vertical bronze propeller
* Propulsion to port and to starboard
* Propeller can be instantly reversed and has continuously variable revs
* Available with forward controls
* Minimal maintenance costs Competitive price and low installation costs
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SCHOTTEL Transverse Thrusters (STT) are built on the basis of the tried-and-tested underwater gearboxes of our Rudderpropellers. We supply standard Transverse Thrusters with FP or CP propellers rated at up to 1400 kW.
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Wärtsilä transverse thrusters can be equipped with fixed pitch or controllable pitch propellers. Their design and layout have been directed towards easy inspection and maintenance, which in turn leads to minimum maintenance costs.
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