While banks and government offices are closed for the Eid al-Fitr holiday, Seaway continues delivering its vital maritime services without interruption. Our team is available around the clock via WhatsApp, email and phone.
Bankalar ve resmi kurumlar Ramazan Bayramı tatilinde kapalı olsa da, Seaway hayati denizcilik hizmetlerini kesintisiz sürdürmektedir. Ekibimiz WhatsApp, e-posta ve telefon ile 7/24 ulaşılabilir durumdadır.
When the part doesn't exist in any catalogue — we make it. Precision CNC machining, casting, forging and reverse engineering of any marine spare part, for any vessel, any engine, any era. OEM-equivalent quality with full class certification.
The biggest challenge for operators of older vessels is sourcing spare parts for engines and equipment that have been discontinued. Seaway's Custom Production division solves this problem — we engineer and manufacture the part to original specification, faster and more cost-effectively than any alternative.
Based in Istanbul, we leverage Turkey's deep industrial manufacturing base — home to hundreds of precision engineering workshops, foundries, forge shops and specialist marine equipment manufacturers — to produce any part, in any material, to any specification.
Whether you need a single critical part urgently, a batch of consumable items for stock, or a complete set of engine components for a major overhaul — our engineering team manages the entire process from specification through manufacturing, inspection and certification to your door.
Send us the part number, original drawing, physical sample, or engine model. Our engineers assess feasibility within 24 hours.
›Physical inspection, 3D scanning or CMM measurement. Full dimensional drawings created or verified. Material analysis if required.
›Detailed quotation with lead time, material specification, manufacturing method and certification level. Customer approval before production starts.
›CNC machining, casting, forging or fabrication in our partner workshops. Quality hold points at key stages with in-process inspection records.
›Dimensional inspection, NDT (UT, MT, PT, RT as applicable), pressure testing and functional testing. Third-party or class society inspection arranged if required.
›Secure packaging, full documentation package, and shipping to your port or vessel by air, sea or road. Installation support available.
State-of-the-art CNC turning, milling and boring centres for precision marine components.
Sand casting, lost-wax investment casting and centrifugal casting for complex marine components.
Open and closed die forging for high-strength marine shaft, propeller and structural components.
Reproducing discontinued parts from physical samples, worn components or incomplete drawings.
Structural fabrication, pipe work, pressure vessel manufacture and certified welding services.
Comprehensive non-destructive and destructive testing for all manufactured components.
Our manufacturing network works with the full spectrum of marine engineering materials, sourced from certified suppliers with full traceability.
The following are examples of custom-manufactured parts we have produced for vessel operators — covering the full range of main engine, machinery and structural components:
| Process | Capacity | Tolerance | Typical Parts |
|---|---|---|---|
| CNC Turning | Up to Ø 1,200mm × 6,000mm length | ±0.01mm | Shafts, liners, sleeves, bushes, rings |
| CNC Milling (3-axis) | 2,000 × 1,200 × 900mm | ±0.02mm | Cylinder heads, frames, brackets, plates |
| CNC Milling (5-axis) | 1,200 × 800 × 600mm | ±0.01mm | Impellers, turbine blades, complex geometries |
| CNC Grinding | Ø 600mm × 3,000mm | ±0.005mm, Ra 0.4µm | Crankpins, journals, precision bores |
| Gear Cutting | Up to module 20, Ø 1,500mm | DIN Quality 6 | Spur, helical, bevel, worm gears |
| Boring | Up to Ø 2,000mm | ±0.01mm | Bearing housings, cylinder bores, frames |
| Sand Casting | Up to 5,000 kg per piece | CT8–CT11 | Pump casings, valve bodies, brackets |
| Centrifugal Casting | Ø 50–600mm, length to 2,000mm | CT6–CT8 | Stern tube bushes, liners, bearing rings |
35+ years of experience reverse engineering obsolete marine parts from physical samples — including parts with no drawings available.
All manufactured parts can be certified by LR, DNV, ABS, BV, RINA or any other major classification society upon request.
Emergency production service for critical parts — 24/7 engineering response, expedited manufacturing for vessel off-hire situations.
Access to Turkey's world-class industrial manufacturing sector — competitive costs, high quality, fast turnaround versus European alternatives.
One team manages engineering, manufacturing, quality, documentation and worldwide delivery — no coordination overhead for you.
Material certificates, dimensional inspection reports, NDT reports, heat treatment certificates and class certificates — all provided.
Send us your part number, sample, drawing or description. Our engineering team will assess your requirement and provide a detailed quotation within 24 hours.
Common questions about our custom marine parts manufacturing service.
Yes — reverse engineering and manufacturing of obsolete parts is one of our core specialities. Using the original part as a sample (or technical drawings if available), we carry out precise dimensional inspection, material analysis, and reproduce the part in our workshop or through our manufacturing network in Turkey. We have successfully produced parts for out-of-production engines from MAN, Sulzer, Wärtsilä, Mirrlees and many others.
We utilise CNC turning, CNC milling, precision boring, grinding, gear cutting, casting (sand, lost-wax and centrifugal), forging, welding and fabrication. For material requirements we work with carbon steel, stainless steel, aluminium alloys, copper-nickel, bronze, brass, cast iron and special alloys. All manufactured parts can be subjected to non-destructive testing and third-party inspection.
Yes. We can arrange classification society (Lloyd's Register, DNV, ABS, Bureau Veritas, RINA, NK, etc.) survey and certification for custom-manufactured parts where required. This typically involves material test certificates, dimensional inspection reports, NDT reports and a class-approved surveyor attendance at final inspection.
Lead time depends on part complexity, material availability and current workshop load. Simple turned or milled parts can be ready in 3–7 days. Complex castings, forgings or assemblies typically take 3–6 weeks. For emergency situations we can often expedite production, and we maintain stock of common raw materials to reduce lead times.
Yes. As part of our reverse engineering service, we can provide full dimensional drawings and 3D CAD models of parts we manufacture. This is particularly valuable for vessel owners who want to build an engineering library of critical components. We can work from original drawings, from physical parts (using CMM or 3D scanning), or develop new designs from scratch to customer specification.