Ingenuity That Floats

As Gemak Group, we have participated the Nor-Shipping between 6-9 June in Oslo, Norway.
19.6.2023 10:12:26

As Gemak Group, we have participated the Nor-Shipping between 6-9 June in Oslo, Norway.

It’s been a fascinating week for us and we had the pleasure to be in Oslo to attend Nor-Shipping and meet with old and new colleagues. Thanks to all.

Upcoming Event!
25.5.2023 00:00:00

As Gemak Group, we are participating in the Nor-Shipping between 6-9 June in Oslo, Norway.

We are excitedly looking forward to meeting you at our booth no D04-12

18.5.2023 00:00:00

we are at MARENTECH EXPO 2nd Marine Energy Technologies Fair and Conference and Wenergy Clean Energy Expo in İzmir, Türkiye.

We will be meeting with sector constituents and discussing about potential cooperation for contribution to renewable energy projects.

We would like to welcome you at our stand, booth no B-146-C

As Gemak Group, we are participating
18.5.2023 00:00:00

As Gemak Group, we are participating in the Sea Asia - Asia's Anchor Maritime & Offshore Event between 25-27 April in Singapore.

We are excitedly looking forward to meeting you at our booth no B2-B11.

We are proud to successfully complete another project of our valuable
18.5.2023 17:31:06

We are proud to successfully complete another project of our valuable clients Reederei NORD Group with their exceptional cooperation. Together with the conventional dry dock repairs, major modifications on the current BWTS was carried out by our well-experienced Gemak Team with the undeniable support of our project partners.

We are at SMM Hamburg Exhibition
21.9.2022 00:00:00

we are at SMM Hamburg Exhibition – the leading international maritime trade fair, which is held in Hamburg.
We will be happy to meet our old friends, meet and make new friends, and share new ideas and current challenges.

We’re waiting for you at our booth no B3 / EG209.

Successful docking and repair period of their good vessel Charles Darwin.
11.8.2021 11:55:00

It is a great pleasure to announce our cooperation with our valuable client Jan De Nul Group took place once again, on delivery of a successful docking and repair period of their good vessel Charles Darwin.

As major work scope, full blasting and silicone painting of underwater areas as well as complete jet water pipeline renewal, steelwork, maintenance of sophisticated dredging equipment are carried out at top quality besides full overhaul of propulsion systems together with many other repair items within the agreed time-schedule.

On the last day of this beautiful...
17.3.2021 13:44:41

On the last day of this beautiful lady from Stolt Tankers as per the initial contracted date, not an hour more!
She is now ready to sail after a successful period of BWTS installation and repairs combined.
Fair winds and calm seas.

Gemak Group shipyard has...
11.3.2021 00:00:00

Gemak Group shipyard has completed repair and retrofitting works on one another tanker vessel, this time she is from Hafnia Tankers family, “Hafnia Africa”. Along with regular dry-docking works, a new Alfa Laval Pure Ballast BWTS installation has been completed successfully.

It was a pleasure to accommodate her and work once again with one of our valued business partners.

Our guest from marnavi spa...
11.3.2021 09:56:51

Our guest from marnavi spa, M/T “Enrico Ievoli” has left GEMAK Shipyard after completion of CAP survey, hull treatment, tank coating, mechanical and engine maintenance works.

With the refreshment of this successful maintenance period, we wish fair winds and calm seas to her at full performance.


The first 3 vessels of Grimaldi...
11.3.2021 09:55:20

The first 3 vessels of Grimaldi Group have left Gemak Group, which are within the scope of total six vessels block booking. In addition to Scrubber & BWTS retrofit works there are other extensive repair jobs such as silicone paint application, rudder stock replacement and aft ramp hinge renewal as well.

Each time faster…
11.3.2021 09:54:28

One more suezmax tanker scrubber retrofitting project has been successfully completed for our esteemed client Eastern Pacific Shipping Pte. Ltd. by Gemak Group Shipyards. Along with open loop scrubber system installation as building of completely new funnel and deckhouse; significant renewal and modification works like surface treatment of all deck areas and various accommodation improvements, have been finished in only 35 days.
Fair winds and following seas, Diamondway! Until next time!


We are very proud to accommodate...
11.3.2021 09:42:16

We are very proud to accommodate Stolt Surf from a major partner Stolt-Nielsen Limited, she is sailed and we wish her safe navigation at always and look forward to see her in the next docking at Gemak Shipyard again.

With our latest Project, CAPPADOCIA SEAWAYS we are proud to complete our 25th scrubber installation
10.7.2020 10:37:49

With our latest Project, CAPPADOCIA SEAWAYS we are proud to complete our 25th scrubber installation. We are thankful to our valuable customers which have thrusted on us and gave us the chance of adding value to their good vessels.



System Information:

The scrubber system is designed to operate in three different modes, dry mode on compliant fuel, open loop mode and close loop mode. Each of these exhaust gas cleaning modes has its own unique way of operation for removing SOX from the exhaust gas. The scrubber system is called as hybrid design that is capable of operating in both open loop and closed loop modes. The wash water system design includes four water pump, two sea water pump, two circulating pump, two coolers, new sea chest in pump room, NaOH and Sludge tanks, process, 2 scrubber towers (8400 kWx2) tank and separator unit.


During the operation in open loop mode, the scrubber uses the natural alkalinity of seawater to absorb and bind the SOX from the exhaust gas. The alkalinity of seawater varies depending on geographic location, however at the most locations it is appropriate to use a value of approximately 2.5 mmol/L in Mediterranean and 1.2 mmol/L in Baltic sea.


During the operating in close loop mode, the scrubber recycles water in sodium hydroxide which is continuously added to balance pH at slightly alkaline value. When operating is closed loop mode, the scrubber system periodically discharges a quantity of wash water to reduce the build-up of sodium sulphates. The system is topped up with freshwater or seawater. For scrubbing, the gaseous SO2 can be removed with efficiencies close to 100%. The SO2 is converted to sodium sulphates and discharged to sea, which already contains much larger amounts of sodium sulphates.


By removing the SO2, formation of secondary aerosols and acid rain are avoided.

Preventive Actions Against Covid-19
6.4.2020 10:38:01

Dear All,

We kindly announce that, the epidemic/pandemic COVID-19 diseases are closely followed in detailed form the first days. We have expanded our precautions and preventive actions against the disease by the first case in Turkey in order to stop the spread. We have implemented safety and business continuity plans as follows in line with the Ministry of Health and local authorities.

We kindly ask your cooperation against this extra ordinary situation and for all reasonable measures regarding our operational processes, aiming to protect the health and safety of our employees, customers and suppliers. We may name the major precautions (but not limited to) as necessary announcements, personal protectives, rearrangement of social areas acc to personal distance rule, disinfectant sprays, disinfecting applications, monitoring of body temperatures, new meeting regulations and postponing of training/social events, aboard visits. Furthermore the vessel’s ports of call and crew travel histories are tracked and necessary actions are taken before arrival at during their stay at the Yard.

We will continue to work and do our best to minimize the possible disruption to the WORK.

We appreciate our CLIENTS’ kind attention and best cooperation in this predicament. Please let us know if more information is required and we will keep you updated upon further development about the issue.

We hope to overcome this devastating disease with minimum losses by common cooperation and awareness.

Important Note: No case has been recorded at any Gemak Group Companies up to date.

Gemak Group of Companies.

Gemak is lengthening ro ro ships for U.N. Ro-Ro
3.9.2018 00:00:00

Gemak is lengthening ro ro ships for U.N. Ro-Ro

It has been several years that U.N. RO-RO İŞLETMELERİ A.Ş. operating one of the most modern and effici
ent fleets of RoRo vessels started contemplating about increasing capacity and efficiency as well as decreasing environmental footprint of their fleet by lengthening their vessels. Decision has been made and Gemak Group has been chosen as business partner for this demanding project at the tender that was attended by major European shipyards.

Ships from the same series will be lengthened by 30 m. building of new midbody block having 1.130 tons has already been started. For block building, Gemak will use several of its facilities to ensure fast and high quality fabrication. Finally, it will be assembled in Gemak TGE Shipyard and launched from the slipway already outfitted to minimise down time of vessels during cutting and lengthening operations. The first ship is expected in Gemak TGE Shipyard at the end of the year. Besides lengthening, Gemak will reinforce existing hulls of the vessels due to increased longitudinal and slamming forces. Also modification of HFO tanks related to MARPOL requirements will be performed in the fore part of the vessels.


Besides proximity to U.N. Ro-Ro terminal that ships to be converted call regularly, most important reasons to make decision in favour of Gemak were its technical capabilities and   graving dock capacity in Gemak TGE Shipyard  that will be used to perform cutting and lengthening operations. Once the ship is dry docked all movements will be performed in dry condition.


“We will use our own SPMT’s to move lengthening section in the dry dock.” says Birol Uner, Gemak’s CEO. “More challenging task is moving of the forward part of the vessel after cutting, weight of which will exceed 4.000 tons. Nowadays, our R&D team is developing skidding system that will be used to move forward part of the ships for about 30 m. We will also use special positioners that were developed in-house for 3rd Bosporus Bridge project that we have completed recently. This piece of hydraulic PLC controlled equipment enables us to position heavy weights, such as lengthening section of for U.N. Ro-Ro vessels with precision of less than 1 mm. This will make our job much faster, easier and will also ensure good alignment and high quality performance. Projects like these make us develop our technical capabilities and increase our competitiveness. It complies with our commitment to permanently develop our facilities.  With these two projects we hope for more similar work from other ship owners. We will be able to offer very competitive price and short shipyard stay. “


Recently, starting from end of 2013, Gemak has embarked on capacity expansion programme focused mainly on heavy steel structures fabrication, handling of heavy loads and efficient and environment friendly blasting and painting of newly fabricated steel structures in closed and controlled environment. Most of the investment was put in place in Gemak’s new shipyard in Altinova (Yalova) region related to the project of steel decks’ fabrication for 3rd Bosphorus Bridge which are abt. 48000 tons in total. These improvements have continued and Gemak is nowadays investing in improving its piping and steel fabrication facilities aiming both shipbuilding and industrial projects.


Apart from being leader in ship repair activities in Mediterranean for many years, new capacities give Gemak Group opportunity to be very competitive in major conversions and steel fabrication projects.