Salvage & Towage of Ships
Consortium Master Divers Salvage Tugs are well established in the marine market thanks to the underlying principles established within the company. Nourishing a culture of excellence and attention to detail, our belief in people and teamwork and our strong focus on our customers’ requirements, together with our commitment to ethical standards, are our core values that have contributed to our success and driven us forward. Safety is the bottom line and the end result to which all our principles converge. We are dedicated to maintaining the high standards of our work; bringing together our extensive know-how and experience to ensure the safety of our team, our environment and any job/activity entrusted to us.
The necessity of safety, as well as our other goals, has required us to build a technologically advanced fleet of variable floating equipment (tug boats, floating cranes, etc…), manned by a team of highly qualified individuals. It has led to the introduction of systems and processes which help us monitor, assess and improve our services. The high standards we strive to necessitate extensive training and continuous re-training of our seagoing and shore-side personnel, so that we continue to maintain an exacting standard of service. Our greatest achievement is completing each assigned task on time, injury-free and without a drop of oil spilled at sea.
Consortium Master Divers
Consortium Master Divers Salvage Tugs are managed by the Master Divers family with a proud tradition of thirty-five years experience and service in the marine sector.
Its core activities include harbour towage, salvage and wreck removal operations, coastal and deep sea towage, ship-to-shore and ship-to-ship services as well as dredging, marine contracting, and offshore industries. The company operates and manages a fleet of port tugs, salvage tugs, floating cranes, support vessels, and other crafts units, fully equipped with modern towing, salvage and fire-fighting equipment. Moreover our salvage tugs are carrying a wide range of salvage equipment including salvage pumps, A- frame arrangements, generators, welding, cutting, patching, fire-fighting and diving equipment. Captain and crew are backed up by dedicated teams of salvage masters, engineers and divers as well as the necessary mobile salvage equipment available at all times. Master Divers Towage & Salvage, services at Colombo, Sri Lanka, offer the following services globally: Harbour Towage: harbour towage services and related maritime services. Terminals: towage services and related maritime and management services to offshore and onshore terminals.
Salvage: salvage, wreck removal, environmental protection and consultancy. Transport & Heavy Lift: chartering, barge rental & transport, ocean, coastal and river towage, heavy lifting and marine support to a variety of civil and offshore projects. Towage services are provided with a modern tug fleet with sufficient bollard pull. All fleet is manned by experienced and highly-trained masters, officers and crew. Our tug masters, officers and crew are well trained and have proven their commitment to the goals of the company over a number of years. The tugs are manned at all times and services can be delivered round the clock and on short notice. All towages are closely monitored by the office staff, which includes former tug masters and engineers who are able to support the tug masters before and during the towage. Master Divers also stresses the importance of tug maintemance and ensures regular inspections by marine surveyors like Det Norske Veritas, guaranteeing the highest industry standards.
• Salvage - salvage dredger
• ‘Zanon werstop Bv”(1978)
• ‘MV Zeung San”(1981)
• Landing craft “Kandula”(1992)
• “Y8” Aircraft (1995)
• ‘MV Leerort” (1998)
• ‘Pesale” (1998)
• ‘MV Ruhunuputha” (2001)
• Hyundai anchor boat (2009)
• Drilling barge ‘KC 19” (2010
Supply of Bunkers to Ships outside harbor
We provide bunker supply services around Sri Lanka and have an immediate response mechanism in place to deliver your requirements as soon as they are communicated to us. Thus once we receive your order via phone or emails, we will deliver the product with good quality. Our supply boats are on stand-by 24 hours a day and we are able to service the requirements of nearly all tankers and cargo vessels around Sri Lanka at competitive rates. We also guarantee experienced captains who will deliver the goods with professionalism and ease.
Supply of Fresh water to ships in & outside harbor
Master Divers is also equipped with water barges and skilled operational crew for supplying fresh water for vessels at Outer Port Limits, Anchorages & in harbor.
Construction & Maintenance of Marine Structures
Since its inception, the Master Divers shipyard has developed major capabilities in dry docking, ship repair and conversion of ships. The company operates as an independent unit and pursues its own activities based on its particular qualifications, assets equipment and facilities.
Our fully equipped shipyard unit is located in at Port of Colombo. The yard and work shop is separated into sections according to the departments with separate supervisor appointed for each unit. These supervisors are be responsible for all activities and operations in his unit. The shipyard is also equipped with 11 sea going vessels, two large deck barges, anchor handling barges and water barges.
Our shipyard handles all shipbuilding & repair services, as well as upgrading of our clients’ fleets, under the guidance and supervision of our naval architects, marine engineers and technical department. The design office supports all technical aspects of the operation of the shipyard, particularly in respect to marine equipment.
Ship to shore transport for crew
Our own fleet of vessels with AC and non AC cabins, provides a comfortable environment for transportation of crew. Our skilled boat handlers ensure a safe and hassle free journey back to shore.
Transportation of material and equipment outside
Our tugs deliver sufficient cargo space and deck space to facilitate safe
transportation of cargo, ensuring safe handling and delivery.
Hull & Machinery repairs. (Floating Workshop)
Our Services involve all forms of marine repairs, which are executed by a technical team experienced in docking repairs and maintenance. This involves in Steel work and hull and machinery repairs.
Our repair team division is composed of licensed electrical engineers and mechanical engineers experienced in different kinds of Marine Propulsion Engine.
Our Repair Division can provide the following services:
• All type of steel repairs (Welding and cutting) by class approved welder fabricators
• Ectrical repairs including Motors, panel board
• Main Engine Fuel Oil pumps (B&W, UEC), M-Bearings
• Deck Machinery and Pipe repairs
• Refrigeration and Air conditioning
• Steel Works
• Tank cleaning jobs and shell markings
Laying and Recovery of Oceanographic Instruments
Our recovery diving team armed with state of the art equipment will deliver the highest industry standard expectations when recovering or installing equipments. Safe recovery and handling is assured with each job we undertake with the aid of the following equipment and facilities:
• Underwater metal detectors
• Decompression chambers
• Lifting bags and floating cranes
We are the pioneers in subsea cable laying in Sri Lanka. Our past experiences have enabled us to handle the transportation and laying of cable to its destination. Tug boats, Divers and shore cranes will facilitate all activities within this purview.
Pipelining & Inspection
Our Marine Engineering Services have established a documented quality system consistent with the IWS (In Water Survey) to broaden its link to Maritime Servicing.
Underwater Servicing capabilities include the following:
• Hull Inspection and Damage assessment
• Hull Cleaning
All Master Diver dive personnel are Certified Divers from PADI and CMAS experienced in diving and interpretation as well as evaluation of results in terms of Hull Damages and Hull Fouling set by the Classification Society , Flagstate or Owners requirements.
Underwater Video Filming & Monitoring
Our underwater CCTV cameras boast superior quality imaging that will provide you with ample details and a clear idea about your expected scope of work. Degital CD s and reports will be provided in on completion of all inspections and requests.
At Master Divers we offer all types of surface repairs and above water line repair meeting international standards of excellence. We handle over 20 vessels annually alongside repair berth’s within any port in Sri Lanka as well as anchorage or outer port limits in Sri Lankan waters. We are capable of handling all routine, damage and retrofit repairs.
Our workshops are fully equipped with the latest machinery and equipment and the yard is geared to cater to all types of ship repairs including:
• Machinery repairs
• Hull repairs
• Propeller repairs
• Electrical repairs
• Electronic and automation repairs
• Cargo gear repairs
• Internal tank, cargo hold blasting and coating Drydock repairs undertaken include
• High pressure water jetting and cleaning& Hydraulic Brush cart for cleaning on water
• Grit / shot blasting
• Airless spray painting
• Overhauling / installation of undersea fitting
• Withdrawal of tail-end shafts
• Renewal of stern bushes
• Overhauling and renewal of stern seals
• Unshipping of rudders
• Checking and correcting alignment of rudders
• Replacement of anodes
• Installation and repair of cathodic protection systems
• Non-destructive methods for testing radiography
• Lignum vitae re-bushing
• Ultrasonic x-rays and magnetic particle surveys
• Load line inspections
• Safety equipment surveys
Underwater Welding & Cutting
Master Divers is uniquely qualified to respond to your requirements. With rigorous inter-company training procedures in place, Master Divers will deliver an effective and experienced welding team made up of certified dry surface welders and underwater wet welders. Master Divers welding technicians meet the strict Class A requirements of the American Welding Society (AWS) and the Canadian Welding Bureau (CWB) as well as
numerous internationally recognized classifications societies.
Master Divers also provides fast response for underwater permanent shell plating repair needs, worldwide.
Using custom fabricated cofferdams and hyperbaric habitats; defective shell plating sections can be replaced underwater using proprietary dry welding procedures that qualify as permanent repairs by all top tier
Underwater Welding Services include:
• Dry permanent repair of shell plating and appendages
• Dry permanent repair and replacement of hull apertures (discharges, sea chests)
• Wet permanent and temporary repairs of shell plating and appendages
• Anode installations
In Water Surveys of Ships
All ships are exposed to the influence and wear of the ocean, causing structural components to wear down over time and require constant preventive and scheduled repair. This ensures that a vessel is in a state of constant service readiness. In order to ensure this serviceability, it is necessary to conduct certain inspections at certain periods throughout the year, including the underwater survey and assessment of necessary repairs. Underwater surveys (both scheduled and un scheduled) are necessary to the effective and safe manning of a vessel due the potential risks the industry entails. The underwater survey of the ship’s hull state is a procedure which is required for each ship irrespectively of her type and cargo-carrying capacity.
The underwater survey is necessary for estimation of the general and detailed technical state of the ships hull before docking, purchase or sale of the ship as well as a compulsory part of a package of measures approved by the Classification societies. In water survey of ships afloat Master Divers has the capability of inspecting vessels both in dock and afloat. In accordance with official rules and industry standards, the underwater inspection (survey) as well as estimation of state of the ships hull when the ship is afloat is possible only with special instruments and equipment by means of which the measurements should be carried out, this includes a video transmitting system, where images can be viewed in real time (CCTV or underwater television). Fault detection methods like this enables assessment of a ships structural integrity while the ship is afloat, without the necessity of docking.
Making it possible for management to carry out a qualitative examination of the hull shell plating and moreover to check its anode and cathodic protection and fasteners and state of plates in the shell plating in order to define availability and localization of dents, cracks or fractures. This also provides a means of inspecting the sea valve gratings and the propulsion/steering unit by measuring the bearings sag of the rudder blade stock and stern gear. Inspection afloat makes it easier to identify the possible risks and better to define the list of the forthcoming repair works. At Master Divers we see each vessel as an individual, each with her own history and fate; which is why every time the underwater survey is carried out, we take into account the specific individual traits and necessities of the vessel. In most cases, the ship’s underwater inspection is carried out under supervision of the Classification Society inspector, and the diving companies performing the inspection are pre-tested for competence in a required Classification society and have its recognition at the hands for performing the works as to surveying the ships. The approximate description of the list of arrangements carried out by divers during underwater inspection is as follows: As a rule, specialists-divers, equipped with special instruments and video-equipment according to the approved survey program, are dived into a required depth. Then those places and objects which should be checked are shown to an inspector.
The inspector observes the inspection and constantly sees the image on his screen, enabling him to adjust the divers’ work and direct their actions. All aspects of the underwater part of the hull, bottom and side openings, bilge keels, welded seams, riveted joints and many others are examined. The propellers are thoroughly examined, their state is estimated and availability or unavailability of cracks or corrosion on the surface of blades are defined. If necessary for discussion of the disputable matters, more detailed or repeated examination, all detected defects are captured by photography and video recording. The underwater inspection (survey) can also detect the hull dents which a specialist-diver measures by means of special meters, magnetic strips and other instruments. Sometimes the underwater inspection is accompanied by simultaneous repair works in the case if the defects can be eliminated at once afloat. Such partial and urgent repair helps to prolong the reliability of the ship’s operational characteristics and to decrease the emergency risks to a considerable extent.
Hull cleaning Services
Fundamental maintenance and performance requirements specified by a ship owner involves a clean hull and smooth propeller. Anti-fouling paints have been known to offer protection against marine growth which leads to reduced additional fuel requirements to maintain the same speed. The greater the time spent at sea, the less the anti-foulant effectiveness, and therefore, ship owners should intervene to arrest this process which in turn would reduce navigational expenses.
Throughout the years we have invested in the development of state of the are underwater hull cleaning equipment and now offer an international service that can give ships back their efficiency without the need for drydocking. This service is offered on a worldwide basis through a network of strategically located underwater hull cleaning stations across the globe. The unique design of our series of underwater hull cleaning units provides the efficiency and durability demanded by the harsh underwater environment. All systems are carefully constructed so that no damage will occur to those hull coatings which are suitable for underwater cleaning, while still completely removing all types of fouling. This restores a vessel’s performance to as close to its optimum condition as possible and offers shipowners considerable savings in fuel.
The three stages below illustrate the process of deterioration caused by marine growth on ships and other vessels:
Various anti-fouling layers on the ship’s hull over time decrease in effectiveness
Soft marine growth consisting of algae, slime and immature barnacles start to adhere to the plating and
penetrate the protective anti-fouling coatings
Barnacles and tubeworms develop and attach themselves to the steel plating, causing permanent hull damage Hull cleaning Services Prevention In order to prevent and minimize this damage, an overall clean should be carried out at phase 2, requiring a rotary cleaning system using soft nylon bristles. Triton Diving Services with its specialized divers use twin brush hull cleaning machines which clean up to 800m²/hour.
Hull Cleaning Work Done in 2010 ( first quarter 2010)
1. MV AGIOS NECTARIOS
2. MV ROYAL RUBY
3. MV KARTERIA (also propeller polishing)
4. MV AQUA GRACE
5. MV ISLAND SKY
6. MV MARSUS
7. MV WAAL TRADER
8. MV PEGASUS
9. MT FAITH
10. MV HANSA SONDERBURG
11. MV POSTOJNA
12. MV STAR OF NIPPON
13. LPG/C GAS EASTERN
14. MV BELUGA MAJESTY
Master Divers has a policy not to carry out underwater cleaning activities which result in an increase of
pollution by spreading large amounts of toxic materials used in many underwater hull coatings. Please feel
free to contact us for further information.
The deepening of canals and ports, the creation of yacht marinas and deep water ports in rocky coastal areas imply the employment of excavation techniques using explosives. EMCC thoroughly masters these techniques.
The company owns two self-elevating maritime platforms, capable of working in the open sea in exposed areas, which are equipped with integrated drilling units. The drilling and rock blasting methods developed specifically by EMCC for this activity, allow the rocky substratum to be demolished prior to dredging.
The qualified personnel employed on the work barges are specially trained in the safety measures concerning the handling of explosives.
Ultrasonic gauging of plate thickness
We are equipped with calibrated surface and underwater thickness gauges for obtaining accurate readings of deserved objects. We also provide detailed reporting that will fulfill further client requirements.
The deepening of canals and ports, the creation of yacht marinas and deep water ports in rocky coastal areas imply the employment of excavation techniques using explosives. At Master divers we have developed expertise in handling explosives that deliver minimal impact to the environment while ensuring each client receives the exact specification required.
The company owns two self-elevating maritime platforms, capable of working in the open sea in exposed areas, which are equipped with integrated drilling units. The drilling and rock blasting methods developed specifically by us for this activity, allow the rocky substratum to be demolished prior to dredging.
Qualified personnel employed on the work barges are specially trained in specific safety measures concerning the handling of explosives.
Deep diving work for Hydro Power Dams
Master Divers Diving & Marine Services provides a full time operation based within the centre of the Colombo port. Offering a wide range of commercial diving and marine services, Master Divers Diving & Marine Services specialize in areas including underwater filming, surveying, safety & support to the film and media industry. The scientific and civil dive team provide survey reports including marine biological pre-disturbance and environmental case studies as well as providing visual inspection work to the harbor office and commissions, covering all areas of marine and civil engineering. Master Divers Diving& Marine Services also provide consultation, supply and installation of high pressure breathing gas systems and advanced compressor technologies.
The mobile dive unit consists of an inwater diver, standby diver, surface support, tender & supervisor, trained to a minimum level of HSE part IV (Professional SCUBA) with a HSE Medical, working under the relevant HSE Approved Codes of Practice (ACoPs). Additions can be made to the unit depending on the contract. Master Divers Diving& Marine Services also offer commercial dive vessels and working platforms which can be available at short notice for mobilization, including fully coded ocean going RIBS and hard boats. Each vessel is inclusive of full dive spread and includes surface supported gas systems, mixing panel, live audio/video and communication surface to diver.
Providing a world-wide service to the offshore and inshore commercial, technical and recreational dive industry and community, Master Divers Diving & marine services believe that our success is only a measure of our customers success, and therefore your enquiry will be dealt with professionally and promptly.
Should you wish to contact us directly, we will be pleased to speak to you and assist with your enquiry. We are an extremely professional company and offer a very efficient service. Our consultation, advisory and quotation time is free of charge and we very much look forward to hearing from you.
The importance of performance is possibly appreciated most in contexts of high demand and high risk. Open ocean work, travel and transport qualifies as one of the most high demand, high risk situations possible.
The process of propeller polishing involves removing marine growth accumulated on the surface of propeller blades which reduces fuel consumption, enhances reliability and extends the maintenance life cycle of vessels.
Typically conducted within a 12 hour period while the vessel is anchored, loading or discharging; propeller polishing has been proven to deliver significant savings. For example, in January 1991, Cunard reported that “QE2” was saving US$7,000 or 48.5 tonnes of fuel per day through propeller polishing, an estimated savings of 12%. Applications employed in the cleaning and polishing process:
• Cleanings during cargo operations
• Fouling inspection prior to hull cleanings
• Hydraulically operated machines
• Multiple brushes to minimize paint loss
• Operations carried out on Anchorage
• Technical reports including photographs
The propeller is particularly vulnerable to marine fouling since it is an unpainted surface that must remain clean and shiny for proper operation. By standards, we are aware that propeller fouling, despite its small surface area, can generate energy losses amounting to half that of the hull itself, so maintaining a clean propeller is critical.
At Master Divers, we ensure that propellers are also polished routinely to reduce friction and ensure that the propeller operates at optimum efficiency.
Even with routine maintenance, surface roughness can occur as a result of erosion, corrosion, or from tubeworm tracings.This roughness alone can increase fuel consumption by up to 10 %.
At Master Divers, we use underwater hydraulic operated rotary tools for the cleaning of propellers. The polisher is designed purposely for the cleaning and polishing of the propeller while various flexible abrasive heads adapt to the structure of the propeller. The rotary motion creates a downward suction force which the diver monitors and steers the tool all over the blade, boss cone and blade edges; applying a number of discs to reach the required scale.
The preliminary job involves the removal of growth using an appropriate abrasive head. Once the growth is removed, the buffering is followed using very fine discs and polishes to approximately 1-micron C.L.A..The duration for an underwater polish of a 4/5 bladed propeller with a 6.5m diameter would be approximately 4 hours.