Vendor’s Library
One of the largest questions in any project is finding a vendor to supply your needs. Who builds that widget? DMS constantly searches and expands our library of vendors, saving effort for you.
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Marine Yellow Pages
The marine yellow pages provides a listing thousands of vendors in all types of marine equipment. An excellent resource to find competitive quotes.
DMS Vendor Library
DMS maintains a list of vendors that we encounter in the maritime industry. Maybe you can find your next supplier here.
Notes
The companies in the Stone Marine Group are among the world’s leaders in the design, manufacture, service and repair of propulsion equipment. A position they have occupied for nearly 200 years since Josiah Stone developed his design for a screw propeller.
Today the Group companies design and manufacture propellers and sterngear for vessels of every type and size, commercial, naval and leisure, whilst specialist companies within the Group service and repair propulsion equipment regardless of the company that manufactured it.
Our service and repair company, Stone Marine Shipcare is operational worldwide 24 hours a day 365 days of the year. Their recently introduced mobile workshops mean they can now get, not just their engineers but also the highly advanced equipment necessary for propeller repairs and modifications, to ports all over the world very quickly.
TechCrane
TechCraneNotes
Techcrane International, LLC provides marine cranes. The company includes drawings of their cranes on the website, in PDF format.
File available at: http://techcrane.com/%5B/caption%5D
Products
Techcrane provides the following types of marine cranes:
- Fixed Boom
- Telescopic Boom
- Knuckle Boom
- Lattice Boom
- Capacities from 2.5 – 200 long tons
They also provide hydraulic power systems.
Website
You can find more information on the company website, here: http://techcrane.com
Contact Information
TechCrane International, LLC
17639 Hard Hat Dr.
Covington, LA 70435
U.S.A.
Phone: +1 (985) 871-0056
Fax: +1 (985) 871-0065
Thordon Bearings
Thordon BearingsNotes
Thordon bearings manufacturers bearings for propellers, rudders, and deck equipment. Every bearing functions completely free of grease or oil of any king. Essentially, they have a line of thermoset polymers that are impregnated with oil on the microscopic level. The bearing is self lubricating. Some of the bearings use water for heat dissipation. (The materials are also compatible with oil and grease if you truly feel compelled.)
Advantages
- No risk of environmental pollution.
- Linear, predictable wear life.
- 15 year warranty on new construction bearings. 10 year warranty on refits.
- For deck equipment: No continuing maintenance. No need to re-grease fittings all the time.
Products
Thordon makes bearings for the following applications.
- Blue water propeller shaft bearings
- Dirty water tail shaft bearings
- Rudder bearings
- Deck equipment bearings
- Dredger bearings
- Offshore equipment bearings
Purchase
Thordon sells their bearings through a distributor network. You can find the closest distributor through their website:
http://www.thordonbearings.com/
The distributor list is on the right side of the screen.
Contact
Direct contact information for Thordon Bearings below.
Thordon Bearings Inc.
3225 Mainway
Burlington, ON L7M 1A6
Canada
Fax: +1.905.335.4033
Regional Contacts
Pacific Northwest, USA
Ken Ogle
3225 Mainway, Burlington, Ontario, L7M 1A6, Canda
Tel: +1 905 335 1440 ext 264
Fax: +1 905 335 4033
email: keno@thordonbearings.com
Thrustmaster
ThrustmasterNotes
Thrustmaster makes thrusters, and other products related to vessel maneuvering and control.
From company website:
Thrustmaster of Texas, Inc. manufactures heavy duty commercial marine propulsion and thrusters. The factory and production of all thrusters is based out of Houston, Texas with a global network of sales offices in Rotterdam, Singapore, China, Dubai, and Brazil. A service office is located in Houma, Louisiana to assist offshore clients.
All thrusters are developed in-house by a complete engineering department for mechanical, hydraulic, electrical and electronic design. Tooling includes machining and measuring equipment, CAD, vessel resistance and propulsion, 3D modeling and ANSYS Finite Element Analysis. The application of modal analysis, stress and strain analysis as well as rotor dynamic analysis of drive trains and transmissions are fundamentals towards the reliability and quality of Thrustmaster’s products.
Products
What types of thrusters do you want? Thrustmaster makes several thrusters, and related products:
Azimuthing Thrusters
360° rotating Azimuth thrusters are used when enhanced maneuver- ability is required in applications such as dynamic positioning, ship escort and ship docking services.
Portable Dynamic Positioning
Quick dock-side conversion of any vessel to DP-0 thru DP-3 per any of the major classification societies.
Outdrive Propulsion Units
Outdrive units are self contained thruster packages for main propulsion and positioning of barges, platforms and river craft.
Rectractable Thrusters
Thrustmaster retractable thrusters are thru-hull azimuthing thrusters using fixed pitch propellers at variable speed.
Water Jets
Axial flow water jets from 100kW to 6,400 kW available in 15 model sizes to accomodate vessels from 6m to +60m with stainless steel jets supported by electronic controls.
Tunnel Thrusters
Tunnel thrusters for docking, slow speed maneuvering, emergency steering and station keeping at zero or slow forward speed.
Website
You can find information about all their products on their website:
Contact
You can find the latest contact information on the company website:
http://www.thrustmaster.net/contact-us/
Thrustmaster Headquarters
Phone Number – 713-987-4265
Fax Number – 713-937-7962
Thrustmaster of Texas
6900 Thrustmaster Drive
Houston, TX 77041
USA
Valence / LithiumWerks
Valence / LithiumWerksNotes
Valence is a brand of batteries, manufactured by Lithiumwerks. They are based on lithium iron magnesium phosphate (LiFeMgPO4) technology. The company emphasizes the safety of their battery technology over lithium-ion batteries.
LiFeMgPO4 cells under puncture or short circuit conditions are much less likely to experience thermal runaway than (for example) Lithium metal oxide. The Exponent testing report, which compares selected lithium-ion battery chemistries.
The batteries have the following environmental features.
- There are no heavy metals used in our chemistry
- Phosphate salts are less soluble than the oxide equivalent
- Lower solubility means that there is less potential for leaching
- Phosphate anion allows use of non-toxic metals (Fe)
Products
Battery Modules
A range of 12, 24, 18 & 36V Lithium Iron Magnesium Phosphate battery modules comprising advanced energy storage chemistry for economic and environment focused automotive, marine, UPS and industrial applications.
Battery Management System
Specially designed to enable comprehensive U-Charge® module implementation options offering excellent scalability. Advanced software allows multiple command and control functions and compatibility to diagnostics equipment and user terminals.
Peripherals
Module diagnostics and data logging peripherals for communication and interpretation directly using a PC.
Company Website
You can find more information on the company website:
Contact Information
Full contact details are available here: http://www.valence.com/contact
Corporate Headquarters
Austin, TX, USA – Corporate Headquarters
Valence Technology
12303 Technology Blvd.
Suite 950
Austin, Texas 78727
Call: 1-888-VALENCE
Phone: 512-527-2900
Fax: 512-527-2910
Europe/Asia Pacific Sales
Mallusk, N. Ireland – EMEA Sales Office
Valence Technology
Unit 63 Mallusk Enterprise Park
Mallusk Drive,
Mallusk, Newtownabbey
Co. Antrim,
Northern Ireland
BT36 4GN
Phone: +44 (0)28 9084 5400
Fax: +44 (0)28 9083 8912
Technical Support
Phone: 1-888-VALENCE | 512-527-2900
or International: +44 (0)28 9084 5400
Vicinay
VicinayNotes
Vicinay Cadenas manufactures high quality mooring accessories providing a wide variety to the industry and solutions which can be tailor made for a specific project, D-type Shackles, Offshore Shackles, Plates, Sockets, Kenter Shackles, LLLC links, ROV Kits, etc.) of various qualities and in a range of sizes (from 100 Kgs up to 3500 Kgs).
Offshore Mooring Chain
Vicinay is best known for manufacturing mooring chain for the offshore industry.
Vryhof
VryhofNotes
Vryhof is the trusted partner to most offshore industry’s leaders, delivering innovative and customer-focused anchoring and mooring solutions.
We are committed to the highest standards of safety and integrity. We are proud of our legacy and impeccable track record over the last 45 years, always delivering value in everything we do.
Anchor Manual
The anchor manual is a very popular introduction to anchoring.
Vryhof Anchor Products
Vryhof Anchors provides drag anchors and related mooring equipment for larger floating structures, to the offshore energy industries as well as for offshore civil applications. Since the foundation of the company in the early seventies, Vryhof’s proven and trusted anchor designs have become the industry standard and are regarded as being best in both performance and handling. With primary focus on customer satisfaction, Vryhof Anchors is the preferred partner for mooring systems in all water depths and conditions.
Stevin Mk3
The Stevin anchor was the original anchor design of Vryhof Anchors at its inception, outperforming all existing anchors at the time. Although initially designed for the dredging industry it has served numerous applications during its life time.
The Stevin design has actually been replaced by later Vryhof Anchors anchor designs, however is still available. For more information contact Vryhof Anchors sales department.
Stevpris Mk5
Introduced in 1993, the Stevpris Mk5 was the anchor the world was waiting for and very quickly became the most used drag anchor for larger mobile and permanent moorings, primarily because of its principal qualities. At the time it had the best per kilo performance, generating up to 50 times its own weight in holding capacity proved suitable for all soil conditions.
It proved easy to handle, easy to install, easy to retrieve.
Still today over 2200 anchors of this type are in use and supplied new to newbuild semi-submersible rigs or permanent installations.
Stevshark Mk5
An adapted version of the Stevpris Mk5, called ‘ Stevshark’, facilitates performance in hard soils such as limestone, calcarenite, very dense sands and coral. It has identical inherent qualities to the Stevpris Mk5, and its modifications include a stronger construction, shark teeth, sharp fluke edges and fluke tips. Optionally the hollow fluke can be ballasted to assist initial penetration.
Stevpris Mk6
The anchor’s geometry provides an extreme high weight/strength ratio, a property that is visible through its robust and sleek design. The fluke shape minimizes soil disturbance during penetration; its enlarged surface provides the huge holding power. The fluke width provides stability both on the seabed and during penetration. The Stevpris Mk6 provides holding power that is well in excess of 30% higher than that of any other existing drag anchor today.
- Extreme holding power due to wider fluke and deeper penetration
- Ultimate structural integrity to withstand the toughest deepwater conditions
- Design facilitates easy handling, fits most anchor racks
- Accommodates the widest range of soils possible
- Excellent stability due to slim design and easy penetration.
Stevmanta VLA
The Stevmanta Vertical Loaded Anchor (VLA) was designed to allow uplift at the anchor point, which is required in semi-taut or taut leg mooring systems.
The Stevmanta installs as a normal drag embedment anchor but the patented angle adjuster system changes the anchor from installation mode to mooring mode, resulting in an instant 3,5 factor of increase in holding capacity. It is the most cost efficient, lightest and smallest deepwater anchor available in the market today and since its introduction in 1996 hundreds of permanent and mobile moorings have been succssfully performed worldwide.
The advantages of using the Stevmanta VLAs in a mooring spread are clear;
- minimum engineering required
- anchors adjust to soil characteristics
- light weight, easy to install from one AHV
- provides holding power of 3.5 times the pull-in load
- deploys like a conventional anchor
- safe taut leg mooring
Wavefoil
WavefoilNotes
Wavefoil has developed retractable bow foils that provide significant fuel savings, reduced motions and a more comfortable experience at sea.
Combining a smart retraction mechanism with the use of light but strong composite materials, Wavefoil is bringing wave propulsion to the market.
EXPLOITING THE POTENTIAL OF WAVE ENERGY
It has been known for over 150 years that vessels with wings – or foils – in the bow can be partly or solely propelled by wave energy. The foils generate lift when the vessel is moving up and down in waves, and the lift typically has a forward thrust component larger than the drag.
Put simply, wave power is directly converted into propulsive power.
A vessel in waves experiences additional resistance compared to calm-water operation. For wave lengths similar to the hull length, this additional resistance will be amplified due to resonance, implying large heave and pitch motions. Wavefoil’s retractable bow foils dampen these motions so that the additional resistance decreases.
So how much fuel can you save? That depends on the ship, its speed, the foil size and location and the wave conditions. For a 100 m long ship operating in a wave-rich area, with constant brake power equivalent to a calm-water speed of 14 knots, research shows that an average fuel saving on the order of 20% can be achieved. Lower brake power gives higher percentage fuel saving.
Fuel savings are not the only benefit of bow foils. Increased comfort, reduced vibrations, less spray, increased operability and the ability to maintain higher speeds in waves for a given power are some other perspectives.
Wolfson Unit
Wolfson UnitNotes
The Wolfson Unit has a long history of working in towing tanks and other physical experimentation methods.
Towing tank services
- Model construction: Scaled models built to lines supplied by the client.
- Calm water tests: Effective power and resistance at a range of speeds, displacements and trims. Improvements to spray rails, knuckles and chines, wash measurement. 3D wake surveys and self-propulsion
- Optimization of trim: Optimal positioning of the Longitudinal Centre of Gravity to achieve desired running trim. Effects and penalties of transom wedges, trim tabs or interceptors.
- Flow visualization and analysis: Improvements in appendage design. Bilge keel alignment. Flow into propellers and through tunnels. Minimize resistance, noise and vibration, and increase propeller efficiency.
- Wake survey: Measurement of the axial flow to optimize propeller design and assess potential for vibration.
- Self propulsion: Derivation of propulsive coefficients (wake fraction, thrust deduction and relative rotatative efficiency) using stock propellers.
- Tests in Waves: Measurement of resistance, heave, trim, accelerations and wetness. Statistical quantities of motion in irregular sea spectra. Determination of seasickness incidence and crew performance. Stability and seaworthiness in beam seas or extreme conditions. Effects of bilge keels on roll reduction. RO-RO ferry damage stability assessment.
- Self propelled: Manoeuvring and directional stability trials such as Dieudonne spiral tests and zig-zag manoeuvres. Docking in high winds and use of bow thrusters. Complex or innovative propulsion systems. Seakeeping and motions in irregular seas. Coupled roll and yaw stability at high speed. Susceptibility to broaching.
- Other Tests: Behaviour in breaking waves or wind and waves. Behaviour of barges and barge trains under tow. Exhaust outlet pressures. Surface coating resistance
About Us
The Wolfson Unit was founded in 1967 to enable industry to benefit from the facilities, academic excellence and research activities at the University, predominantly through model testing and consultancy.
The Unit is comprised of full time professional engineers, we offer competitive consultancy rates and meet the tight schedules of commercial projects. Other University staff can be called upon when additional expertise from other disciplines will benefit a particular project.
This unique situation has enabled us to build a reputation for technical excellence and independence which is valued by our established clients and respected by organisations who invite our engineers to sit on advisory and regulatory committees. In recognition of our long standing service to the small craft industry, we’re proud to have been awarded The Royal Institution of Naval Architects 2012 Small Craft Group Medal.
We are best known for ship model testing, sailing yacht performance and ship design software, but our expertise extends to many other aspects of marine technology and industrial aerodynamics, details of which can be found on other pages here.
Wolfson Unit MTIA Building 185 Southampton SO16 7QF United Kingdom
Wrtsila
WrtsilaNotes
Wartsila offers a huge range of products for vessels: engines; ballast water management systems; oil separation; . . . the list goes on.
From company website:
Wärtsilä is passionate about optimising lifecycle value
by offering whatever its customers in the marine industry need
from the most complete offering
of marine products, integrated solutions and services
Products
There is a huge list of products on the Wartsila website, with extensive details. This list just highlights the major categories.
- Automation
- Ballast water management
- Compressors
- Engines and generator sets
- Dual-fuel systems
- Low speed dual-fuel systems
- Generating systems
- Low-speed engines Wartsila generation X
- Medium speed engines
- Low-speed engines Wartsila RT-flex & RTA
- Engine auxiliary systems
- Exhaust gas cleaning
- Gas systems / LNG systems
- Gears / reduction gears
- Inert gas systems
- Oil separation
- Power electric systems
- Propulsors
- Propellers
- Rudders
- Steerable thrusters
- Transverse thrusters
- Waterjets
- Pumps and valves
- Seals, bearings, and stern tubes
- Waste and fresh water management
Website
Wartsila has full detail of all their products on the company website:
Contact
Wartsila has contact offices all over the world. Check the company website for the nearest contact:
Wärtsilä Corporation
Street Address
John Stenbergin ranta 2
FI-00530 Helsinki
Finland
Post Address
P.O. Box 196
FI-00530 Helsinki
Finland
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