Capabilities

Full manufacturing capabilities & specifications

Full technical specifications for First In Service in Tallinn, Estonia: welded structures up to 35 × 7 × 7 m (115 × 23 × 23 ft) and 160 tonnes (353,000 lb), turning and milling up to Ø 2,700 mm (106 in) and 13,000 mm (512 in) in length held to ±0.02 mm (±0.0008 in), submerged arc welding to 100 mm, dynamic balancing to Ø 4,000 mm (157 in) and 4,000 kg (8,800 lb), and in-house coating to NORSOK M-501 and C5-M.

Capabilities by discipline

Facility

18,000 m² (194,000 sq ft) production workshop · Lifting capacity up to 160 tonnes (353,000 lb) · 20 km from Muuga Harbour, 60 km from Paldiski Port

Heavy fabrication & welding

EN ISO 3834-2 & EN 1090-235 × 7 × 7 m / 160 tTIG, MIG/MAG, SAWNDT: VT, PT, MT, UTNORSOK M-501 / C5-MDuplex, Inconel, Hastelloy

Maximum product dimensions 35 × 7 × 7 metres (L×W×H), 160 tonnes (353,000 lb). Welding: MIG/MAG (135/136), TIG (141), SAW (121) with penetration up to 100 mm. Surface treatment to NORSOK M-501 and C5-M.

CNC machining: machine park

Tolerances ±0.02 mm (±0.0008 in). Max workpiece: Ø 2,700 mm (106 in), length 13,000 mm (512 in), height 4,500 mm (177 in).

Machine	Type	Key specs
FERMAT WRF 130	Floor-type boring mill	X=13,500 · Y=4,000 · Z=900 mm
FERMAT WRFT 130	Table-type boring mill	X=4,200 · Y=2,500 · Z=2,100 mm
FERMAT TK6513	Floor-type boring mill	X=3,500 · Y=2,000 · Z=1,600 mm
MICROMILL HBM4	Horizontal boring mill	X=2,200 · Y=1,600 · Z=1,600 mm
ZAYER XIOS 4000	Bed-type CNC mill	X=4,000 · Y=1,500 · Z=1,400 mm
CORREA A20	CNC milling	X=3,400 · Y=740 · Z=750 mm
SC27 / Mitutoyo	Vertical turning lathe	Max Ø 2,700 · H=1,900 mm
TOS HULIN SKIQ 20	Vertical turning lathe	Max Ø 2,300 · H=2,200 mm
FERMAT AS20FFR3	CNC vertical lathe	Max Ø 2,000 · H=1,200 mm
PUMA 700LY II	CNC horizontal lathe	L=3,250 · Ø 1,000 mm (39 in)

Plate rolling

Plate up to 40 mm thick and 3,000 mm (3 m) wide. Cylindrical shells, conical sections and custom profiles.

Assembly & FAT testing

FAT-tested modules, bearing installations, commissioning. Full MDR: certificates 3.1/3.2, NDT reports, FAT protocols.

Materials we process

Carbon steelStainless 304/316/316LDuplex 2205Super duplex 2507TitaniumInconelHastelloyCuNi alloysMarine-grade steelsWear-resistant steels

Certifications

ISO 9001:2015ISO 14001:2015EN ISO 3834-2EN 1090-2PED

Capability at a glance

Every envelope on one screen.

Capability	Envelope	Documentation	Details
Heavy fabrication & welding	Up to 35 × 7 × 7 m (115 × 23 × 23 ft), 160 t (353,000 lb). EN ISO 3834-2, EN 1090-2	EN 10204 3.1/3.2, NDT via certified partners	Heavy fabrication →
CNC machining	Ø 2,700 mm (106 in), L 13,000 mm (512 in), ±0.02 mm (±0.0008 in)	Dimensional report, material certs	CNC machining →
Mechanical assembly & FAT	Mechanical, electrical, hydraulic, commissioned	Full MDR: certs, NDT, FAT protocols	Mechanical assembly →
Pressure equipment	PED 2014/68/EU, vessels, tanks, skids	PED conformity docs, EN 10204 3.1/3.2	Pressure equipment →

One contract can combine any of the above. All work is performed or coordinated from our 18,000 m² (194,000 sq ft) Tallinn facility, with EU origin.

Bring us your toughest tolerances.

Share your technical requirements with our engineers. We will send a firm quote within five working days.

Start your project Download capability overview (PDF)

First In Service in numbers

Experience: Manufacturing since 2002, First In Service OÜ registered 2010

Facility: 18,000 m² single-site workshop, Valukoja 12, Tallinn, Estonia

Maximum product: 35 × 7 × 7 m (L×W×H), 160 tonnes

CNC envelope: Ø 2,700 mm, length 13,000 mm, tolerance ±0.02 mm

Welding: 135/136, TIG, SAW up to 100 mm — EN ISO 3834-2, EN 1090-2

Certifications: ISO 9001, ISO 14001, EN ISO 3834-2, EN 1090-2, PED 2014/68/EU

Surface treatment: Shot-blasting and coating to NORSOK M-501, C5-M

Logistics: Muuga Harbour 20 km, Paldiski Port 60 km, heavy-haul road access

Response: Reply within 1 working day, firm quote within 5 working days

Questions buyers ask

What is the maximum workpiece size First In Service can handle?

Heavy fabricated products up to 35 × 7 × 7 metres (L×W×H) and 160 tonnes. CNC machining: Ø 2,700 mm, 13,000 mm length, 4,500 mm height. Boring mill X-axis travel up to 13,500 mm.

What CNC machines does First In Service operate?

FERMAT WRF 130 and WRFT 130 boring mills, ZAYER XIOS 4000 milling centre, SC27 vertical turning lathe (Ø 2,700 mm), TOS HULIN SKIQ 20, PUMA 700LY II horizontal lathe, plus additional boring mills, milling machines, and lathes.

What welding processes are available?

TIG (GTAW/141), MIG/MAG (GMAW/135/136), and SAW (121) with penetration up to 100 mm. EN ISO 3834-2 certified. Materials: carbon steel, stainless steel, duplex, super duplex, titanium, Inconel, Hastelloy.

What plate rolling capacity does First In Service have?

Plate rolling up to 40 mm thick and 3,000 mm (3 m) wide. We roll cylindrical shells, conical sections and custom curved profiles for pressure vessels, tanks and structural applications.

What surface treatment standards does First In Service offer?

Complete surface treatment, from automated shot-blasting to industrial coating systems that meet NORSOK M-501 and corrosivity category C5-M, for offshore and subsea environments.

Does First In Service provide assembly and FAT testing?

Yes. Complex assemblies, FAT-tested modules, precision bearing installations, system commissioning. Complete MDR documentation: material certificates 3.1/3.2, NDT reports, dimensional logs, FAT protocols.

In brief

160 tonnes. 35 metres. 20 km to the ship. Heavy fabrication, precision machining and mechanical assembly under a single contract. One supplier is responsible for the finished geometry and for the documentation that proves it.

At a glance

2002 Manufacturing since

160 t lifting capacity

Ø 2,700 mm vertical turning

Ø 4,000 mm balancing, up to 4,000 kg

18,000 m² workshop under one roof

35 × 7 × 7 m fabrication envelope (L × W × H)

Sectors served

Marine, offshore & subsea

We machine and fabricate parts for high pressures and corrosive marine conditions, from podded propulsion components to structural elements for offshore platforms. Fabrication, machining and corrosion protection are all done in-house, so the coating is never handed to a third party. Weight: 100 kg – 50,000 kg. Envelope: Up to 25 × 5 × 5 m (L×W×H). Materials: Marine-grade steels, carbon steel, stainless steel, duplex / super duplex. Surface treatment: NORSOK M-501 and C5-M, applied in-house. Class approvals: DNV, Lloyd's Register, Bureau Veritas, RINA — scope per project. Inspection: VT, PT, MT, RT.

Oil & gas / process equipment

We manufacture certified pressure vessels, tanks, piping modules and skids in strict compliance with PED and international safety standards. Design: EN 13445 / PED 2014/68/EU. Weight: 200 kg – 25,000 kg. Envelope: Up to 25 × 5 × 5 m (L×W×H). Materials: Carbon steel, stainless steel, duplex, super duplex. Inspection: VT, PT, MT, RT.

Rotating parts & shafts

Made to drawing for pumps, compressors, fans, turbines and power generation: impellers up to Ø 4,000 mm, rotors, shafts up to 3,250 mm, casings, and fan and blower components. Welded parts are stress-relieved, and rotating parts are dynamically balanced in the same order. Weight: 10 kg – 5,000 kg. Envelope: Ø 500 – Ø 4,000 mm. Balancing: Up to Ø 4,000 mm and 4,000 kg. Materials: Carbon steel, stainless steel, duplex / super duplex, titanium. Inspection: VT, PT, MT, RT.

Pulp & paper machinery

Precision spare parts and critical process components for mills in continuous production. Our priority is fast, reliable manufacturing that keeps your downtime short. Design: EN 13445 / PED 2014/68/EU. Weight: 200 kg – 25,000 kg. Envelope: Up to 25 × 5 × 5 m (L×W×H). Materials: Carbon steel, stainless steel, duplex. Inspection: VT, PT, MT, RT.

Mining & machine building

Heavy machine-building assemblies for the mining sector, precision-machined from wear-resistant materials for high-impact, abrasive service. Components: Machine assemblies, structural frames, conveyor elements. Materials: Hardened and wear-resistant steels. Conditions: High-impact, abrasive environments. Inspection: VT, PT, MT.

Defence

Precision manufacturing of regulated, mission-critical defence components, with full traceability, strict quality control and compliance with defence industry specifications. Focus: Mission-critical precision components. Requirements: Full traceability, strict QC, defence specifications. Capabilities: Welding, machining, assembly to military standards.

Why buyers choose us

Proven in demanding sectors

We are a specialised contract manufacturer and heavy engineering subcontractor delivering precision-welded, machined, and assembled products for demanding industrial applications.

Early DFM review

Before we build to print, our production engineers carry out a Design for Manufacturability (DFM) review to find potential failure points, optimise welding sequences and reduce your overall manufacturing cost.

Certified quality systems

Our operations are certified to ISO 9001, ISO 14001, EN ISO 3834-2 and EN 1090-2, and our documentation complies with PED.

Full material traceability

We guarantee full material traceability from prototype to series production. Weld integrity is verified by NDT (VT, PT, MT, UT) carried out by certified partners.

Scale and lifting capacity

With 18,000 m² of floor space and lifting capacity up to 160 tonnes, we can scale resources to your project timeline and handle very large components.

Heavy-haul port access

Our Tallinn site is 20 km from Muuga Harbour and 60 km from Paldiski Port, with direct heavy-haul road access that avoids city traffic. Oversized components up to 160 tonnes ship roll-on/roll-off to Europe and the Nordics.

Environmental responsibility

Waste, chemical safety and emissions are actively managed as part of our ISO 14001-certified operations.