Marine, offshore & subsea manufacturing
Azimuth thruster parts, propulsion housings, propeller shafts, rudder components and offshore structures, built in Tallinn 20 km from Muuga Harbour. Weights run from 100 kg to 50,000 kg in marine-grade, duplex and super duplex steels, coated in-house to NORSOK M-501 and C5-M, with class approval under DNV, Lloyd's Register, Bureau Veritas or RINA per project.
First In Service manufactures marine, offshore and subsea components in Tallinn, Estonia: welded structures up to 35 × 7 × 7 metres and 160 tonnes, and machined parts up to Ø 2,700 mm and 13,000 mm in length to ±0.02 mm. Surface treatment to NORSOK M-501 and C5-M is applied in-house with film thickness logged per layer. Certified to EN ISO 3834-2, EN 1090-2 and PED 2014/68/EU, with classification society scope agreed per project (DNV, Lloyd’s Register, Bureau Veritas, RINA). Muuga Harbour is 20 km away by direct heavy-haul road.
Parts we manufacture for marine and offshore.
If your component is not listed, it is still worth asking: the envelope, materials and documentation matter more than the part name.
From the workshop: Marine, Offshore & Subsea
Click a photo to enlarge.
Salt water does not forgive shortcuts.
A thruster housing that fails in service means a vessel off charter and a dry-dock bill that dwarfs the component's price. A coating system that underperforms in the splash zone means corrosion claims years before scheduled maintenance. So marine and offshore buyers care less about the cheapest machining hour than about taking the supplier out of the risk equation. That means classification society compliance, materials that match the certificates that accompany them, and coating systems tested for the actual service environment.
One integrated site, from plate to classed component.
Fabrication, machining, surface treatment and assembly happen in one 18,000 m² facility in Tallinn, so one audit covers the entire production chain and one contract carries single-point accountability. We machine propulsion components to ±0.02 mm, fabricate structures to 35 × 7 × 7 m and 160 tonnes, and apply NORSOK M-501 / C5-M coating systems in-house. Surveyors visit one address.
Typical scope
Relevant equipment
Materials
Standards & class
160 tonnes, 20 km to the ship.
Our facility sits 20 km from Muuga Harbour and 60 km from Paldiski Port, with direct heavy-haul road access and no urban restrictions on oversized transport. For marine components, every kilometre between machine shop and quay adds schedule risk, handling risk and cost. Our run to the quay is among the shortest in Northern Europe.
Specifications at a glance
| Propulsion | Azimuth thruster parts, propulsion housings, propeller shafts |
|---|---|
| Structures | Foundations, frames, rudder components, deck equipment |
| Subsea | Machined housings and structural elements to spec |
| FERMAT WRF 130 | Floor-type boring mill, X: 13,500 mm — housings and frames |
| SC27 VTL | Vertical turning up to Ø 2,700 mm — slewing rings, hubs |
| Welding | 135/136, TIG, SAW to 100 mm — EN ISO 3834-2 certified |
| Surface treatment | Automated shot-blasting + NORSOK M-501 / C5-M coating |
| Corrosion-resistant | Duplex, super duplex, CuNi alloys |
| Steels | Marine-grade steels, stainless, carbon steel |
| Traceability | EN 10204 3.1 standard, 3.2 on request |
| Classification | DNV, Lloyd's Register, Bureau Veritas, RINA — per project scope |
| Welding quality | EN ISO 3834-2, EN 1090-2 |
| Coating | NORSOK M-501, C5-M |
Questions marine buyers ask
Can First In Service manufacture components for classed vessels?
Yes. We manufacture to classification society requirements including DNV, Lloyd's Register, Bureau Veritas, and RINA, with the survey and documentation scope defined per project.
What marine propulsion components can you produce?
Azimuth thruster parts, propulsion housings, propeller shafts, rudder components and structural elements, machined to ±0.02 mm where the fit demands it.
What corrosion protection do you provide for offshore environments?
Complete surface treatment, from automated shot-blasting to coating systems that meet NORSOK M-501 and corrosivity category C5-M, the requirements written for splash-zone and subsea service.
What materials do you work with for marine and subsea applications?
Stainless steel, duplex and super duplex, marine-grade steels, and CuNi alloys, with full EN 10204 3.1/3.2 material traceability.
How large can marine structures be?
Up to 35 × 7 × 7 metres and 160 tonnes, with heavy-haul road access to Muuga Harbour 20 km away and ro-ro shipping for oversized loads.
The same facility, with the evidence each sector asks for.
Rotating parts & shafts
Impellers, casings, rotors, shafts and turbine housings to ±0.02 mm.
Rotating parts & shafts →Mining & machine building
Crusher frames, conveyor structures and wear-resistant steel assemblies.
Mining & machine building →Buyer’s guides
Ready to discuss your project?
Send your drawings and specifications. We reply within 1 working day and send a firm quote within five working days.
Request a quoteBook a 20-minute call →Download capability overview (PDF)