Marine engineering services

Complete Support with design engineering for upgrading your ship

ClassNK Consulting Service offers a wide variety of high quality marine engineering services.
Our broad range of technical competence enables us to deliver tailor-made solutions.

Our achievements:

  1. Retrofit engineering for SOx scrubbers :
    1. Development of modification drawings
  2. Retrofit engineering for Ballast Water Management Systems (BWMS) :
    1. Consultation for selecting suitable BWMS
    2. Development of modification drawings
    3. Dispatch of assistant superintendents to worksites
  3. Development of Ballast Water Management Plan
  4. Structural strength calculation / analysis :
    1. Strength calculation of hull structure and reinforcement plan preparation
    2. Strength calculation of mooring equipment and reinforcement plan preparation
    3. Calculation of allowable loads on deck
    4. Finite-element modeling (FEM) analysis
    5. Fatigue analysis
    6. Vibration analysis
    7. Liquid cargo sloshing analysis
    8. Consultation for modifications in line with the new requirements of the Panama Canal
  5. Performance calculation :
    1. Development of Stability Booklet
    2. Development of Loading Manual
    3. Calculation of damaged stability
    4. Development of allowable table sheet for steel coil loading

Scope of Work:

We provide a variety of services to suit your needs.

Retrofit engineering

We provide large-scale retrofit engineering services for the installation of SOx scrubbers and Ballast Water Management Systems. Our work is highly praised by clients.

Step1 Pre study / Get a grasp of the ship's situation
Step2 Preparation of preliminary design
Step3 Onboard check and 3D scanning
Step4 Preparation of basic drawings
Step5 Obtain class approval
Step6 Preparation of detail drawings
Step7 Support with retrofit work

Consultation for selecting suitable BWMS

We provide technical advice for selection of suitable BWMS in consideration of the below factors:

  1. Treatment methods used
  2. Pipe space
  3. Ballast water pump capacity
  4. G/E capacity
  5. System Design Limited (SDL)
  6. Cost

Dispatch of assistant superintendents for retrofit work

In addition to the design work, we would be happy to assist you in carrying out smooth construction by dispatching our highly experienced engineers as assistant superintendents.

Development of Ballast Water Management Plan (BWMP)

We provide timely support in the development of BWMP in accordance with D-2 or D-1+ D-2 regulations.

Performance calculation

We provide support with:

  1. Development of Stability Booklet and Loading Manual.
  2. Calculation of damaged stability in accordance with regulations such as ICLL, SOLAS, MARPOL and SPS. etc.

Other services

We are pleased to assist you with many other requests.

For more information on this matter, please contact us at the following email address:

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