PT Mitra Karya Sarana delivers end-to-end marine contracting services for commercial vessels, offshore support units, and port infrastructure. Based in Batam — Indonesia’s strategic ship repair hub — our mobile teams and fully equipped workshop provide fast, class-approved repair, fabrication, and installation, both dockside and on-board.
Our Specializations
Our marine capabilities cover critical hull, machinery, and deck works:
- Rudder Stock Fitting & Alignment: Removal, machining, bushing replacement, and precision alignment of rudder stocks and pintles.
- Propeller Shaft & Stern Tube Works: Shaft withdrawal, straightening, metal spraying, seal replacement, and stern tube boring.
- Hull Steel Repair & Fabrication: Plate renewal, frame replacement, doubler plates, and structural reinforcement to class standards.
- Deck Machinery Fabrication: Bollards, fairleads, hatch covers, ladders, platforms, and custom deck fittings.
- Marine Piping Systems: Fabrication and installation of fuel, ballast, fire-fighting, cooling, and hydraulic piping in carbon steel, stainless, and Cu-Ni.
- Tank Repair & Coating: Cleaning, steel renewal, pressure testing, and protective coating for ballast, fuel, and fresh water tanks.
Quality Assurance
All marine works are executed under strict QC procedures and witnessed by class surveyors (BKI, ABS, NK, DNV). Our welders are certified to AWS D1.1 and ASME IX, with full traceability of materials, WPS/PQR, and NDT reports (MPI, DPI, Ultrasonic). We work to shipyard safety standards with full Permit to Work and risk assessment systems.
Why Choose Us?
- Strategic Batam Location: Fast mobilization to shipyards, anchorages, and offshore sites across Singapore Strait.
- 24/7 Dockside Response: Emergency repair teams available for critical breakdowns to minimize off-hire time.
- One-Stop Capability: From machining and fabrication to installation — no need for multiple subcontractors.
- Class & Owner Approved: Proven track record with international vessel owners and oil & gas operators.
Need urgent marine repair or a fabrication quote? Contact our marine team today.
Related Projects
Rudder Stock Fitting
PT Mitra Karya Sarana (MKS) successfully delivers high-quality rudder stock fittings for ship steering systems, demonstrating their expertise…
Related Services & Projects
- Structural Engineering
- Rudder Stock Fitting
- General Fabrication
- Civil Construction
- Spreader Bar 45 Ton Project
Frequently Asked Questions
What marine repair works does MKS handle in Batam?
Rudder stock fitting and alignment, propeller shaft and stern tube works, hull steel repair and fabrication, deck machinery fabrication, marine piping systems, and tank repair and coating.
Do you work dockside and on-board vessels?
Both. Our mobile teams and fully equipped Batam workshop execute work dockside and on-board, including anchorages and offshore sites across the Singapore Strait.
Are your marine works approved by classification societies?
All marine works run under strict QC and are witnessed by class surveyors including BKI, ABS, NK, and DNV. Welders are certified to AWS D1.1 and ASME IX.
How fast can you mobilise for an emergency repair?
We provide 24/7 dockside response for critical breakdowns to minimise off-hire time, mobilising fast to shipyards and anchorages from our Batam base.
What documentation do you provide for class surveys?
Full traceability of materials, WPS/PQR, and NDT reports (MPI, DPI, ultrasonic), plus Permit to Work and risk assessment systems aligned with shipyard safety standards.
