Maersk Fluid Technology automates SEA-Mate® Blending-on-Board Technology
May 29, 2018

Maersk Fluid Technology (MFT) have advanced their SEA-Mate® Blending-on-Board (BOB) technology with integrated software that automates the system’s function to produce Fit-for-Purpose cylinder lubricants using data received from sensors onboard.

Originally developed by Maersk for use on A.P Moller-Maersk Group's fleet of containerships, MFT’s BOB technology allows for the blending of the in-use system oil, as a base oil, with a high-BN cylinder oil product to produce a Fit-for-Purpose cylinder lubricant and facilitate the addition of fresh system oil to the engine sump.

The use of this technology can reduce cylinder oil consumption and alleviate issues such as cold corrosion and excessive cylinder wear. It can also mitigate issues associated with worn system oil causing problems for the hydraulic control system in modern, electronic controlled two-stroke engines.

The SEA-Mate® BOB product line has comprised of three models; B500, B1000 and B3000. These have had different capacity making them suitable for different engine sizes.

The new model range; B500 Mk2, B1000 Mk2, B3000 will continue to have many of the tried and tested characteristics. The main difference is that the B500 Mk2 and B1000 Mk2 will have the same nominal capacity i.e. be suitable for the same engine sizes and the difference will be in the control system.

Read more here

Maersk Fluid Technology publishes whitepaper examining the benefits of Blending-on-Board on system oil
May 15, 2018

Maersk Fluid Technology (MFT), has published ‘Benefits of Refreshing Two-Stroke Engine System Oil by Blending-on-Board’ a whitepaper which explores the many benefits for system oil that are conferred by the company’s SEA-Mate® Blending-on-Board (BOB) system.

The paper details how BOB – developed in-house by the AP Møller subsidiary as a means of producing cylinder lubricant suited to different fuel types and engine operation modes for crosshead two-stroke engines – has even more benefits for the engine’s system oil. BOB significantly improves the system oil making the engine more efficient and reducing fuel consumption. The consequent reduction in exhaust emissions is also beneficial to the environment.

System oil cools and lubricates essential engine components. It is as well used as hydraulic oil for operating and controlling engine components and systems, fuel injection equipment, exhaust valves and turbochargers. Under normal circumstances, the system oil degrades in the time between system oil changes; becoming thicker, losing its detergent characteristics and becoming contaminated by wear particles and possibly by leakage from the upper cylinder through the piston stuffing box.

When BOB is employed to produce cylinder lubricating oil from the in-use system oil and an appropriate high BN oil product, the engine’s system oil is constantly replenished with fresh clean oil and therefore the protection and efficient operating of the engine is continually maintained.

Read more: here

Download the whitepaper by clicking here.

Come visit Maersk Fluid Technology at Posidonia Shipping Exhibition in Athens, Greece
May 8, 2018

Posidonia is approaching and Maersk Fluid Technology will be present for the very first time, exhibiting with Technava who has represented us in Greece and on Cyprus since 2017.

At the fair we will be happy to introduce you to the latest generation of Blending-on-Board lubrication optimization systems and to have some good Lube & Fuel Oil discussions.


Let’s talk about

  • The advantage of Blending-on-Board
  • Cold Corrosion
  • Cylinder lubrication feed rate reduction
  • System oil condition improvement
  • 2020 lubrication perspectives

When: June 05-08
Where:  Metropolitan Expo
Hall 3, Stand 111 (3,111)
Who to meet:   The Maersk Fluid Technology technical & commercial team

We are looking forward to seeing you in Athens!

Read more about the event: Here
SEA-Mate® Blending-on-Board system wins Green Award
March 15, 2018

Maersk Fluid Technology were awarded ‘The Greenest Maritime Technology Solution’ at the International Green Shipping and Technology Summit which took place in Athens, Greece in November 2017.

The GST Awards Ceremony which form part of the two-day event, recognised industry leading innovative green solutions across a variety of categories and was attended by experts from global maritime and shipping companies representing brands from across the globe.

Being awarded the winners accolade above a host of first class nominees was testament to the green credentials of the SEA-Mate® Blending-on-Board system.

Maersk Fluid Technology will be exhibiting their Blending-on-Board technology with their partner Technava during Posidonia 2018. 

Read the full article here

Maersk Fluid Technology partners with Technava to introduce SEA-Mate Lubricant Blending-on-Board System to Greek and Cypriot markets
December 21, 2017

Piraeus-based Technava have commenced with the promotion of the Maersk Fluid Technology’s (MFT) SEA-Mate® Blending-on-Board (BOB) system as the official sales agent for the technology in Greece and Cyprus.

Originally developed by Maersk for use on A.P Moller-Maersk Group's fleet of containerships, MFT’s BOB technology allows for the blending of the in-use system oil, as a base oil, with a high-BN cylinder oil product to produce a Fit-for-Purpose cylinder lubricant and facilitate the addition of fresh system oil to the engine sump. With BOB units on board, ship operators can blend cylinder lubricant compositions that match actual engine operating conditions and fuel sulphur levels. The use of this technology can reduce cylinder oil consumption and alleviate issues such as cold corrosion and excessive cylinder wear. It can also mitigate issues associated with worn system oil causing problems for the hydraulic control system in modern, electronic two-stroke engines.

The SEA-Mate® BOB system has obtained letters of no objection from MAN Diesel & Turbo and Winterthur Gas & Diesel (WinGD) engines and is suitable for use on all types of two-stroke engines.

Read the full article here

INVITATION – Visit us at Marintec in Shanghai, Hall N1 - N1D71-2
November 29, 2017

Maersk Fluid Technology is exhibiting at this year’s Marintec in Shanghai. We will have a stand in Hall N1 and we look forward to having some good Lube & Fuel Oil discussions and to give you our view on the soon to come 2020.

When visiting us we will be proud to present our SEA-Mate® Blending-on-Board system and Analyzer equipment:

B1000  -  The Blending-on-Board (BOB) lubrication optimizing system for lubrication, maintenance and fuel savings.
M4000  -  The Analyzer that monitors your engine's performance when analyzing Lubricants and Fuel Sulphur.

You will also have the opportunity to meet our co-exhibitors and agents, Norvel Marine Engineering Company Ltd. from China and Premier Six Pte. Ltd from Singapore.

So come visit us in the Danish Pavilion for Lube and Fuel discussion, while enjoying some Danish and Chinese refreshments.

We all look forward to meeting you in China! 

Read more about Marintec 2017 here

Speaking about importance of lubrication in modern engines @ GST Summit in Athens 2017
November 24, 2017

Maersk Fluid Technology has been invited to the Green Shipping Technology Summit in Athens to speak about the importance of lubrication in modern engines, in order to reduce lube oil consumption, emission and engine wear.

  • Where: Radisson Blu Park Hotel – Athens 10682, Greece
  • When: 28th of November 2017
  • Time: 12:20

Managing Director and speaker Jens Byrgesen is looking forward to discuss lubrication opportunities with the Greek shipping industry and to meet ship owners.

Read more about the event: here   


Maersk Fluid Technology showcases how they can help reduce lubrication oil consumption by up to 40% at this year’s Marintec
November 2, 2017


Blending-on-Board system from Maersk Fluid Technology reduces lubrication oil consumption by up to 40 percent a year.

Read - International Shipping News 

Maersk Fluid Technology outlines the benefits of its SEA-Mate® Blending-on-Board lubrication system
August 31, 2017


Maersk Fluid Technology (MFT) has launched a new video designed to inform the industry of their SEA-Mate® Blending-on-Board (BOB) lubrication system which reduces lube oil consumption by up to 40% and can reduce fuel consumption by up to 1.5%.

Watch the video to find out about BOB… 



Evergas and Clipper Group to Equip Vessels with Maersk Fluid Technology SEA-Mate® Lubricant Blending-On-Board System
June 6, 2017


Maersk Fluid Technology (MFT) has signed contracts with both Evergas and the Clipper Group for the supply of the SEA-Mate® Blending-on-Board (BOB) system. This recent order takes the total number of SEA-Mate® BOB systems invested in by ship owners to over two hundred units, representing millions of logged cylinder operation hours.

A recent influx of orders for the SEA-Mate® Blending-on-Board (BOB) system confirms industry interest in technical solutions that enable ship operators to blend fit-for-purpose cylinder lubricant compositions on board their vessels that match actual engine operating conditions and fuel sulphur levels.

Onboard lubricant blending can reduce cylinder oil consumption and alleviate issues such as cold corrosion and excessive cylinder wear. It can also mitigate issues associated with worn system oil causing problems for the hydraulic control system in modern, electronic 2-stroke engines. Initially a tool for reduction of lubrication issues on very large 2-stroke engines, the concept is today available in three different sizes and suitable for all modern 2-stroke engines.

Since the 2015 introduction, the SEA-Mate® B1000 system has also been adopted for vessels owned by Bertling, Masterbulk and Evergas. For the smaller B500 system, the Clipper group has in 2017 taken delivery of the first unit, to be fitted on a vessel equipped with an MAN Diesel S42MC engine.

Read more about the EverGas and Clipper Group orders in our press release or visit to learn more about the current shipowner interest in adapting lubrication to actual operating conditions.


Maersk Fluid Technology to present at 39th Propulsion & Emissions conference in May 2017
May 5, 2017


Upon request, we are giving a presentation of the challenge of 2-stroke engine lubrication before and after the Sulphur Cap in 2020, seen from an operators point of view.

Shipowners face continuously changing requirements for engine fuel – and thus also for 2-stroke engine lubrication. With the latest generation of  Blending-on-Board lubrication management system, cylinder oil is blended on the go, making it possible to optimize for both running conditions and the fuel specifications, being it traditional HFO or alternative fuels. Our presentation will touch on the challenges shipowners deal with today, and how a blending system can help mitigate both liner lubrication issues and system oil contamination issues and facilitate refreshment of system oil leading to reduced energy consumption and  increased lifetime for cylinder & hydraulic system components. 

Sune Lilbaek, Head og Sales & Marketing at Maersk Fluid tehnology, will talk about 2-stroke engine "Lubrication Optimization Challenges - before and after 2020" at Motorships 39th conference on Propulsion and Emission, taking place in Hamburg on May 10-12th.


Read the summary of our presentation at the Motorship Blog from May 9th  (time-stamp 14.57 -> 15.10).


WinGD issues ”supplier approval” for Maersk Fluid Technology’s Blending-on-Board concept
May 3, 2017

Winterthur Gas & Diesel (WinGD) has issued a Supplier Approval for both the Blending-on-Board concept and the onboard XRF lubricant and fuel oil analyzer. Approval is valid for existing and future WinGD engine designs.

The WinGD approval of Blending-on-Board is a follow-up to the existing Wärtsilä approval for RTA/RT-Flex/W-X engines. The Blending-on-Board concept has been developed together with WinGD and other 2-stroke engine designers, and the concept is continuously enhanced to meet new requirements and suggestions from partners and customers.

Apart from approval of the general concept, WinGD has also tested and confirmed suitability of a series of lubricants for Blending-on-Board. Do not hesitate to read more in the general guidelines, also linked in our  Lubrication Guidelines section.  

Visit Maersk Fluid Technology at the Sea Asia exhibition in Singapore                               

April 23, 2017


Come and see us at B2-H20 where we are showcasing a B3000 blending-on-board lubrication system at the Premier Six booth.

Maersk Fluid Technology will exhibit the latest generation of Blending-on-Board lubrication optimization systems. We will share a booth area with Premier Six Pte Ltd, where you will have the opportunity to experience the B3000 3rd generation SEA-Mate® cylinder oil blender.

Where:   Basement 2 – B2-H20 – Marina Bay Sands, Singapore
When:   25. – 27. April 2017
Who to meet:   The Maersk Fluid Technology technical & commercial team

Let's discuss about: 

  • Cylinder lubrication feed rate reduction
  • System oil condition improvement
  • Main Engine oil treatment plant cost drastic reduction
  • Fuel consumption
  • 2020 lubrication perspectives

We are looking forward to seeing you at Sea-Asia in Singapore! 



Speaking about lubrication before / after 2020 @ Green Ship Technology Conference, 22th of March      
March 21, 2017


Maersk Fluid Technology has been invited to talk about how upcoming environmental regulations will affect lubrication of main 2-stroke engines, as the Green Ship Technology confererence in Copenhagen, on March 22-24th.

We will present our view on the future of lubrication and the continued relevance of Blending-on-Board on the 22nd in the afternoon.

Read more about the event here

And about our presentation here


Chevron highlights Blending-on-Board and cost-savings in press release for 140BN TaroUltra     
March 3, 2017


Chevron Marine Lubricants officially released their 140 BN product Taro Special HT Ultra early 2017 with a focus on cost-saving and cold corrosion mitigation on newer MAN Diesel & Turbo engines.

In their press release titled “Cost savings with Taro Special HT Ultra”, Chevron writes as follows:

“Chevron Marine Lubricants has been working closely with key customers and MAN Diesel & Turbo to develop Taro® Special HT Ultra. A new 2-stroke cylinder lubricant able to cope with the demands of the latest high efficiency engines on the market today whilst running on high sulphur fuel at low speeds. Taro® Special HT Ultra provides the flexibility required for blending on board (BOB) and as well as the first 140BN cylinder lubricant OEM approved for use on its own for ultra-high corrosion environments following extensive laboratory and on-board trials.”

Read the full Chevron Press release here

Download the product sheet at Chevron's website

Learn more about how BOB can help you achieving the savings by visiting our "Products" webpage  and calculate your savings with our online calculator


List of 140BN and 300 BN Cylinder oil product sheets and safety data sheets updated    
February 14, 2017


We have updated our library of product sheets to include the latest generation of 140 BN and 300 BN cylinder oils suitable for Blending-on-Board, suitable for blending with system oil or low-BN cylinder oils like a BN25.The library includes high-BN cylinder oils from BP, Castrol, Chevron, ExxonMobil, Premier 6 & Total Lubmarine, and is continuously updated as new oils are officially released by the oil majors.If you have any questions related to cylinder oils suitable for blending, do not hesitate to let us know – use the contact form linked at the top right of our website.


Visit our lubrication guidelines section for more info


Blending-on-Board Value calculator updated with support for mobile devices.

December 12, 2016

The SEA-Mate® Blending-on-Board Value Calculator allows customers to evaluate the different potential savings with their engine and running conditions in mind, and a vessel-specific savings potential report is generated. The report highlights potential cylinder oil savings, as well as energy and consumption savings related to having a continuous refreshment of the system oil. Calculations are on actual system and cylinder oil consumption & cost for both main engine and auxiliary engines. It also includes an estimate for expected reduction of maintenance cost – reduced cost for change of cylinder piston rings & liners, reduced cost for purifier maintenance and more. The resulting report is emailed to your inbox for further evaluation and support when building a business case.

Read the full press release here

Try the value calculator here


UPDATE: Read what the media is saying:


   Maritime Reporter Video interview – Blending-on-Board

November 22, 2016

Our Blending-on-Board cylinder lubrication concept was selected as topic for the Maritime Reporters video blog at the SMM fair in 2016. Watch the interview with Mr. Sune Lilbaek, head of sales at Maersk Fluid Technology. It focus on how fit-for-purpose lubrication address ship owners concerns regarding cylinder oil lubrication. Topics discussed where:

  • Emission regulation and Blending-on-Board
  • Cold corrosion mitigation
  • Benefits leading to lubrication cost reduction due to reduction of cylinder oil reduction
  • The advantage of Blending-on-Board compared to other solutions
  • Fit-for-Purpose lubrication for smaller 2-stroke engines.    

Watch video or at Maritime Reporter’s webpage    

   Blending-on-Board hot topic at Asian Marine Engineering Conference 8-9/11 2016

November 11, 2016

Maersk Fluid Technology has been invited as key presenters at the Asian version of Marine Propulsion's Marine Engineering Conference. The topic is Blending-on-Board of main engine lubricants and its relevance with new fuel sulphur regulations coming up in 2020.

Even with new regulations coming into force, the business case for Blending-on-Board remains strong, but changes in additive package compositions are likely to happen and the importance of base-number will be changing as regulation is implemented.

Join session 6 at the conference and learn more about the future of 2-stroke engine lubrication.

Read more here

  Asian Marine




MaerskFluidTechnology logo 2015

  INVITATION - Next generation Blending-on-Board @ Danish Maritime Fair 2016


October 5, 2016

Come visit Maersk Fluid Technology at the Copenhagen-based maritime fair

Danish Maritime Fair is approaching and Maersk Fluid Technology will for the first time have a booth exhibiting the latest generation of Blending-on-Board lubrication optimization systems, as well as offer hands-on sessions with our state-of-the-art scrapedown XRF analyzer and a preview of our new online lube-oil consumption monitoring system.

  • When: October 25-27
  • Who to meet: The Maersk Fluid Technology technical & commercial team
  • Free Tickets: Click here

When visiting us, take the chance to:

  • Learn about innovative 2-stroke engine lubrication solutions
  • Perform an accurate scrape-down analysis - Bring your own scrape-down sample or borrow one of ours
  • Try our “augmented reality” blender investigator
  • Stay for a while - there’s Danish beer on tap !

We are looking forward to seeing you at the Danish Maritime Fair in Copenhagen!

  Blending on board SMM 2016
  invitation banner

  Tanker Shipping & Trade: Blending-on-Board is ok for newer engines from MAN Diesel & Turbo


August 9, 2016

In their June/July 2016 issue, Tanker Shipping & Trade brought a story regarding MAN’s confirmation of “Blending-on-Board” being OK for for MAN Mark 8 and Mark 9 engines, based on MAN statement given at Chevron Marine Lubricant’s seminar September 2015.

Read the full story at or download it here.

  Tanker june

   See our next-generation Blending-on-Board at SMM 2016


July 26, 2016

Maersk Fluid Technology will be present at SMM, on stand number A5.210, with actual examples of the company’s Blending-on-Board (BoB) system and the associated XRF scrapedown oil analyser.

With current industry concerns about cold corrosion, and the need to adjust fuel sulphur levels to meet emissions limits, the importance of using cylinder oil of the correct alkalinity level has never been greater. Experience in some of the world’s largest fleets has proved that BOB is a simple, low-cost, flexible, reliable and environmentally-friendly method of achieving this.

SMM 2016 e1467660915783 2

Run at minimum recommended cylinder lubrication regardless of fuel sulphur content.

Sune Lilbaek, Head of Sales at Maersk Fluid Technology, explains:

  “The BOB system added to the existing lubrication system and after installation it will no longer be necessary to adjust cylinder oil feed rates is needed regardless of the sulphur content in the fuel oil. When switching from traditional lubrication oil to our future-proof blending system, experience with the current 200 installations has proved that it will be possible to achieve lubrication at or close to the lowest allowed consumption of lubricant as specified by the engine manufacturer. This results in the cylinder lubricant from the BOB system always matching the sulphur content in the fuel. It is no longer necessary to increase lubricant supply to counter corrosive wear or fouling – instead the concentration of BN and other additives are adjusted on-the-fly, creating a fit-for-purpose cylinder oil at same or better quality than a standard fixed-BN cylinder oil. Being able to match lubricant with the fuel in use translates to proven reductions of up to 50% in consumption. Once the system has been set up, on-board engineers will merely need to enter the sulphur content of the fuel in use and the system will automatically blend a cylinder oil matching the fuel sulphur – the process can be fully automated and does not require interaction from the operator. “

Best of all – BOB is easily retrofitted to existing vessels

Utilising the in-use system oil for blending is a clear-cut win for the engine

As the oil used for blending down the concentrate is taken from the in-use system oil, system oil is frequently replenished with new stock. This prevents the oil quality deterioration that otherwise takes place for any system oil. As a result, anti-wear and detergency properties are as for a new oil and on top of this, the system oil viscosity is maintained and waste system oil disposal and oil cleaning energy consumption is reduced by up to 80%.

Experience has shown that by maintaining the original viscosity of the system oil, friction losses are reduced and fuel consumption has proven to be cut by up to 1.5%. Cleaner system oil has, in addition, a positive impact on wear of components and maintenance of separators and filters. Taking into account the reduced fuel and lubricating oil consumption and lower waste oil disposal costs, payback times of less than two years can be expected.

Read the full press release at our media partners Press Release library


  Maersk Tankers orders 12 Blending-On-Board systems for medium-size MAN Diesel & Wärtsilä 2-stroke engines

July 7, 2016

In the second half of 2015, Maersk Fluid Technology introduced a new version of its cylinder oil ‘Blending-On-Board’ (BOB) system, targeting medium-sized 2-stroke propulsion engines with a cylinder bore between 420 and 680 mm.

Now the first volume order has been placed for retrofit of the SEA-Mate® B1000 system onto 12 tankers delivered to Maersk Tankers between 2005 and 2008 - ten vessels equipped with Wärtsilä (WinGD) RTA and RT-Flex engines with a bore between 580 and 620 mm and two vessels with medium-bore engines designed by MAN Diesel & Turbo.”


The ordered BOB systems are simple to retrofit onboard existing vessels and will be installed during 2016 without the need to interrupt vessels schedule. With the systems installed the vessels will be able to blend from 30-140 BN cylinder oil, utilizing the in-use system oil as a base-oil. The system is fully approved for the MAN Diesel & Turbo and Wärtsilä (WinGD) engines in question.

Tommy Thomassen, CTO Maersk Tankers commented “With the flexibility of the B1000 Blending-On-Board (BOB) system from Maersk Fluid Technology, we get the ability to match our cylinder oil lubrication to the fuel sulphur. The BOB system is expected to facilitate up to 40% reduction of current lube-oil consumption, cleaner main engine system oil and fuel savings of at least 0.5% for both MAN Diesel & Turbo and Wärtsilä (WinGD) 2-stroke engines. Investing in BOB allows Maersk Tankers to stay flexible and ready for future lubrication challenges”

Read the full press release at our media partners Press Release library

  ShipInsight: Talking Tech – discussing Blending-on-Board

June 30, 2016

In the latest quarterly edition of ShipInsight Maersk Fluid Technology’s Blending-on-Board was in focus. Our Mr. Sune Lilbaek, Head of Sales, answered various technical and commercial questions related to Blending-on-Board, covering topics as “Why BOB”, “Engine Designer Cooperation”, “System performance”, “What’s next” and more. This Q&A will provide a bit of insight on frequently asked questions from both journalists and customers Read the magazine online. The Talking Tech feature can be found on electronic page 106 to 108.




  Marine Propulsion & Auxiliary equipment feature: Blending-on-Board for electronically controlledl 2-stroke engines

May 30, 2016

Marine Propulsion & Auxiliary Engine equipment ran a follow-up feature to their Dec-Jan feature and the European Marine Engineering Conference in April. The article notes that MAN Diesel & Turbo has confirmed that Blending-on-Board lubrication is suitable for its current range of electronically controlled ME engines, if viscosity is right. The feature also stress that the oil used for blending is the in-use system oil and not sludge oil as originally mentioned as an option by the Marine Propulsion magazine.

Read the feature online here  or download a PDF of the feature.

  MP Apr16 Maersk

Maersk Group & Qatargas signs Technical Cooperation agreement mentioning Blending-On-Board

March 1, 2016

In the technical collaboration agreement between Qatargas and Maersk Group signed in first quarter of 2016, our Blending-on-Board is highlighted as a technology that QatarGas finds to be very exciting and one of the future collaboration areas for reduction of vessel running cost.

On February 23rd, Maersk Group CEO Niels S. Andersen and QatarGasCEO Mr. Khalid Ben Khalifa Al-Thani, signed a Letter of Intent for Technical Collaboration between Qatargas and Maersk. The agreement aims at exploring opportunities related to use of LNG for marine propulsion.

In this connection, Qatargas mentions Maersk Fluid Technology’s Blending-on-Board in connection with innovative technologies of interest as follows:

  QG Maersk LoI3

Maersk Line currently operates more than one in six of the world’s container vessels. Subject to the required infrastructure being made available and the development of cost-efficient LNG propelled vessels, early predictions suggest a larger scale use of this propulsion technology by ship owners in the future. Among their many innovations, Maersk has developed an on-board lubrication oil system to recycle used lubricants resulting in savings while maintaining safe, reliable and optimized engine conditions.

Maersk Fluid Technology have met up with Qatargas several times to discuss implementation of the BOB technology on their fleet, noting that the flexibility of the “fit-for-purpose” lubrication made possible with blending-on-board makes it perfect for blending of cylinder oils matching fuels with very dfferent sulphur content properties. This is not only useful for future dual-fuel engine vessels but also for vessels with conventional 2-stroke diesel engines bunkering fuel with different sulphur content.

Read the press-release here

Download PDF


  Presenting Blending-on-Board at European Marine Engineering Conference 2016

 February 5, 2016

Visitors to the 2016 European Marine Engineering Conference in Amsterdam this year will be able to hear a keynote speech from Maersk Fluid Technology managing director Jens Byrgesen, who will talk about his company’s success with Blending-On-Board lubrication technology.

Maersk’ SEA-Mate Blending-On-Board concept is based on proprietary technology designed to enable the operator to custom blend a fit-for-purpose cylinder lubricant from recycled two-stroke system oil and a cylinder oil concentrate with a base-number up above 300 BN.

The SEA-Mate concept is designed to address the needs of today's operational challenges, such as slow-steaming, changes between different fuel types with different sulphur content, crankcase cleanliness issues and system oil performance concerns.

As a topic, Blending-On-Board divides opinion within the industry, with many of the leading lube manufacturers advising caution, but with a number of shipowners apparently seeing benefits from employing the technology. Indeed, independent consulting company BWSC has documented that the system facilitates a fuel consumption reduction up to 1.5% and owners find it is possible to reduce lube oil consumption by up to 50%.

  large bob seamate blending on board maersk fluid technology

The first Blending-On-Board systems were commissioned back in 2008 and today there are more than 200 systems in active operation.

As an example: Blending-On-Board was installed on Emma Maersk in 2012. Back then, Maersk Line estimated cost savings from reduced lubricant and fuel consumption for Emma Maersk in excess of US$100,000 per year and the total operating savings from the Blending-On-Board technology installed on Maersk Line ships to be in excess of US$17 million per year.
Delegates will have the chance to quiz Mr Byrgesen on the virtues of this technology.

The Marine Lubes session of the European Marine Engineering Conference begins at 15:20 on 13 April at the Mövenpick Hotel, Amsterdam.

Press Release library

  Maersk Post #3 – Innovation for Growth, Big lesson from a small blender.

10. September 2015
Small and otherwise unimpressive to look at, BoB comes with a skill most commercial vessels, regardless of size, are willing to pay for these days, namely, operational performance at a lower cost.
This is also why more than 169 Maersk Line vessels will have BoB on board by the end of 2015, and why a number of other external shipping lines have placed orders.

Blending-on-Board was installed on Emma Maersk in 2012. Since then, Maersk Line estimates cost savings from reduced lubricant and fuel consumption for Emma Maersk in excess of USD 100,000 per year. The total operating savings from the BoBs installed on 169 Maersk Line ships is expected to be in excess of USD 17 million per year, with each vessel saving different amounts depending on the size of the ship, engine type, operating parameters and other factors.

  It started purely from a desire to reduce the cost of lubricant for the Maersk fleet. But, what we have today as a result is a whole lot more, including greater knowledge of our engines, vessel maintenance and fuel efficiency”.

So says Niels Henrik Lindegaard, Chairman of Maersk Fluid Technology and Head of Maersk Oil Trading.

Read more at the website.


  Our innovation project Blend-on-Board is on the front page of the largest business paper in Denmark

August 31, 2015

Today our innovation project Blend-on-Board is on the front page of the largest business paper in Denmark. By recycling the lubricating oil and blending cylinder oil on-board the vessels, we secure large savings for 2-stroke engines in the container, tanker and bulk market. Our expectations are high for the marine market.

Read more:  Download PDF


 New product launch: SEA-Mate® Blending on board B1000

August 24, 2015

In order to meet the requirements of different engine sizes, the innovative blending on board model B1000 has been developed, targeting small to medium sized engines. BOB B1000 has the same functionalities as B3000, and offer a cost-effective and flexible way to custom-blend your vessel’s cylinder oil. BOB B1000 can also operate with 2 stroke engines, and has been approved by LIoyd Register and ABS’s.

 First prototype SEA-Mate® Blending on board B1000

July 1,  2015

Commissioning of new prototype blender, BOB B1000, was done onboard Clara Maersk on 28th June 2015. The new blender is targeted small to medium size engines. We are excited about this development and hope it will open the marine market for a significantly larger number of vessels, supplementing the larger B3000 blender.

 Maersk Line order 56 SEA-Mate® Blending on board systems

December 29, 2014

We are pleased to announce that Maersk Fluid Technology A/S have received another SEA-Mate® Blending-on-Board order for 56 Maersk Line vessels.

SEA-Mate® Blending-on-Board systems are now being installed on a total of 181 vessels.

Value proposition for vessel owners arise from fuel saving, lube oil saving and operational & maintenance optimization. Payback time ranges from below ½ year up to 2 years, depending on engine type.

2015 ECA Lubrication challenge – SEA-Mate® Blending-on-Board have also been tested with good results in an engine operating on distillate fuel and we therefore believe that SEA-Mate® Blending-on-Board will be able to handle the 2015 ECA lubrication challenge, for a wide range of engine types.


 BOB Technical Seminar 2014  

16th of September 2014



Maersk Fluid Technology are invited to a SEA-Mate® Technical Seminar hosted by MAN Diesel PrimeServ China in Shanghai on 19th September 2014. The seminar will focus on cylinder oil solutions, including live demonstration of the SEA-Mate B3000 Blender and the SEA-Mate M4000 Analyzer. More than 80 representatives from Chinese Ship-owners have confirmed their attendance and this event is the official PrimeServ launch of Blending-on-Board in China.


 Brand new product launch: SEA-Mate® CJC™ Filter System

5th of September 2014

In connection with SEA-Mate® Blending-on-Board, a new unique SEA-Mate® CJC™ 2-stroke main engine filter has been developed. The combination of Blending-on-Board and the new 2-stroke main engine filter has been field tested for more than 6 months and the system deliver superior system oil cleanliness, as per OEM requirements.

Read more



18th of March 2014

Since first installation of SEA-Mate® Blending-on-Board systems back in 2009 on-board 4 Wartsila engine powered vessels, tangible savings and operational benefits have been secured by Maersk Line, Limited. In connection with bringing 10 new vessels into their fleet, all Wartsila powered, SEA-Mate® Blending-on-Board system have been chosen in order to secure fuel, lube oil and spare part savings.


14th of March 2014

Maersk Line is using the SEA-Mate® Blending-on-Board system with both MAN and Wärtsilä diesel engines. Both OEMs have endorsed and approved the system and both are SEA-Mate® distributors. More than a million hours of on-board testing in Maersk’s worldwide fleet show that SEA-Mate® reduces bunker fuel consumption by at least 0.5% and up to 1.5% at slow steaming. Lube oil consumption is also cut by up to 40%. Results have been confirmed by independent testing. 


  SEA-Mate® Blending on Board leads to Fuel saving of 1,5% during slow-steaming

 Fuel saving coming from SEA-Mate® Blending on Board will amount annually to USD 100,000 – 149,000


April 2013


Conclusive proof that the SEA-Mate® Blending on Board can provide fuel efficiency savings.

Maersk Fluid Technology in conjunction with a Blending on Board installation, recently carried out a carefully monitored field trial using a land based stationary 2-stroke MAN engine 9K80MC-S to measure fuel efficiency potential through the use of SEA-Mate® Blending on Board.

The actual test was performed by an independent company, Burmeister Wain Scandinavian Contractor, who provided corroborated evidence of fuel savings of 0.5% at 90% M.C.R and up to 1.5% at slow steaming conditions.

To put this into context, for a typical, large 2-stroke propulsion engine, savings will exceed USD 100,000 per annum.

Check the report here


Heat-20Rate-20Test Maersk-20Fluid-150px 


Maersk Line installed a further 25 SEA-Mate® Blending on Board installations in 2012 and as a direct consequence of the favorable fuel savings and engine performance Maersk Line ordered another 70 installations for 2013-2014.

Maersk Line and Maersk Fluid Technology have in the previous three years extensively tested the Blending on Board concept. After analysis, results and values have been confirmed.

  • Reduces costs of lube oil.
  • Dramatically improves engine conditions.
  • Reduces overall operating costs.
  • Introduces a waste oil recycling program.
  • Has an improved impact on the environment.

Maersk Fluid Technology and Wartsila Switzerland Ltd have joined together to form a Business Co-operation Agreement in order to develop and sell efficient lubrication management systems on Wartsila engines.
SEA-Mate® Blending on Board and SEA-Mate XRF oil Analyzers are a crucial part of the newfound co-operation.

Jens Byrgesen, Managing Director of Maersk Fluid Technology has expressed his excitement and enthusiasm regarding this co-operation and is confident that the joint co-operation will accelerate the Blending on Board concept and ensure additional installations.

  BOB Cooperation Agreement with Wartsila

14. Jul 2011

Wartsila Switzerland Ltd and Maersk Fluid Technology, Inc has entered into a Business Cooperation Agreement, in order to develop and sell efficient lubrication management systems on Wartsila diesel engines. Blending on Board and SEA-Mate XRF oil Analyzer, is a crucial part of this cooperation.

Managing Director of Maersk Fluid Technology, Jens Byrgesen, express great excitement of this cooperation and "are confident the joint cooperation will take Blending on Board to the next level and ensure additional BOB installations in the future".

  Strategic Partnership with MAN Diesel PrimeServ

29. Jan 2009

MAN Diesel PrimeServ and Maersk Fluid Technology Agree on Strategic Partnership

23 January 2009. MAN Diesel PrimeServ and Maersk Fluid Technology have agreed to form a strategic partnership, where MAN Diesel PrimeServ will represent Maersk Fluid Technology's SEA-Mate® line of products to operators of MAN Diesel equipment in both the marine and stationary power markets and on a global scale.

The philosophy behind the SEA-Mate® product line is to provide innovative and technologically-advanced products, services and solutions with respect to fuels or lubricants used in marine or stationary power equipment, allowing operators the utmost flexibility, advanced performance and significantly-reduced operating costs. Initially, the focus will be on two-stroke engines and both the optimisation of system and cylinder-lubricant usage as well as improved engine performance. In addition, tools are provided to allow for near real-time oil analysis as an enabler for predictive maintenance of any rotating machinery aboard vessels, capable of communication to home-base as well as utilising neural networking for vessel-by-vessel, fleet-by-fleet, equipment-by-equipment optimisation.

The initial systems provided, namely the SEA-Mate® Analyzer and SEA-Mate® Blending on Board (sold collectively, or the analyser separately) developed by Maersk Fluid Technology will enable operators to analyse lubricants and fuels in near real-time for fluid and engine performance and thus allow for the fine-tuning of engine operation. At the same time, the blending of used system oil with a suited and MAN Diesel-approved additive package to provide a flexible composition cylinder oil meeting actual fuel sulphur level requirements, allows for not only significantly reduced cost, optimised cylinder-oil feed rate and supply security, but also reduces environmental impact. In addition, various other fluid solutions and services are under development and expected to be introduced to the market in 2009.

Operators will benefit from the proven and well-known MAN B&W two-stroke engines that are strong prime movers in the marine and power plant markets, the well-respected products and services provided by MAN Diesel PrimeServ and the broad fluid technology and operational experience of Maersk Fluid Technology, who provides outstanding, unique and patented technical solutions with proven benefits.

Otto Winkel, Senior Vice President MAN Diesel PrimeServ, states: "This is a great opportunity for the engine operators who ultimately will be able to blend cylinder oil onboard to a suitable base number and thereby cater for the actual engine condition."

"The marine and power-generation industries have been faced with increasing challenges regarding lubricants and fuels over the past years. We have found an ideal partner in MAN Diesel PrimeServ to combine PrimeServ's global reach and expertise with our proprietary solutions, offer those on a global scale, and also explore other areas of interest to our clients," adds Klaus-Werner Damm, President and CEO of Maersk Fluid Technology, Inc.

"Our cooperation will benefit the entire industry as well as secure prospects for future substantial growth."





Blending-on-Board hot topic at Asian Marine Engineering Conference 8-9/11 2016

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