Precision CNC Machining & Turning

First In Service OÜ machines parts up to Ø 2,800 mm and 13,000 mm in length, holding tolerances down to ±0.02 mm, on FERMAT boring mills and heavy-duty turning centres in Tallinn, Estonia.

CNC machining

Precision CNC Machining & Turning

Turning and milling of heavy components, long shafts, and complex geometries, holding tolerances down to ±0.02 mm.

Overview

Precision machining for parts too large for most CNC shops.

Our machine park is built for heavy components, long shafts, and complex geometries. We turn and mill parts up to Ø 2,800 mm, 13,000 mm in length, holding tolerances down to ±0.02 mm.

Envelope

Diameter: Up to Ø 2,800 mm
Length: Up to 13,000 mm
Height: Up to 4,500 mm
Tolerance: ±0.02 mm

Machine park

FERMAT WRF 130: Floor-type boring mill, X: 13,500 mm, Y: 4,000 mm
FERMAT WRFT 130: Table-type boring mill, X: 4,200 mm, Y: 2,500 mm
ZAYER XIOS 4000: Bed-type CNC milling centre, X: 4,000 mm
SC27: Vertical turning lathe, max Ø 2,700 mm
PUMA 700LY II: Horizontal turning centre, max length 3,250 mm, Ø 1,000 mm

Materials

Steels: Carbon steel, stainless steel
Corrosion-resistant: Duplex, super duplex
Specialty alloys: Titanium, Inconel, Hastelloy

Documentation

Dimensional inspection: Full report per part or batch
Material certificates: EN 10204 3.1, 3.2 on request
FAQ

Questions procurement teams ask

What CNC machining tolerances can you hold?

Tolerances down to ±0.02 mm on parts up to Ø 2,800 mm diameter, 13,000 mm length, and 4,500 mm height.

What CNC machines do you operate?

FERMAT WRF 130 floor-type boring mill (X: 13,500 mm, Y: 4,000 mm), FERMAT WRFT 130 table-type boring mill, ZAYER XIOS 4000 bed-type CNC milling centre, SC27 vertical turning lathe (Ø 2,700 mm), and PUMA 700LY II horizontal turning centre.

What is the maximum part size for CNC machining?

Diameter up to Ø 2,800 mm, length up to 13,000 mm, height up to 4,500 mm.

Do you machine complex alloys?

Yes. Stainless steel, duplex, super duplex, titanium, Inconel, and Hastelloy are machined regularly.

What documentation is provided for machined parts?

Dimensional inspection reports and material certificates (EN 10204 3.1, 3.2 on request) accompany every delivery.

Process

How a heavy component crosses the shop

Machining heavy components is a different discipline from machining small ones — the part does not come to the machine as much as the machine strategy comes to the part. A 12-metre shaft or a 40-tonne housing gets a setup plan before it gets a spindle: how it is supported so its own weight does not distort the datum, in what order features are cut so residual stresses release early instead of after final pass, and where in the sequence dimensional checks catch drift while there is still material to correct it.

Our engineers review every drawing for manufacturability before quoting. Sometimes that means telling you a ±0.02 mm tolerance on a particular feature will survive transport and temperature swing only if the mating part is match-machined — and sometimes it means telling you a looser tolerance would work and cost less. That conversation at the quote stage is worth more than any machining hour rate.

Complex materials — duplex, super duplex, titanium, Inconel, Hastelloy — run with tooling and parameters proven on previous work, not improvised per job. Every delivery ships with its dimensional inspection report and material certificates.

Industries we serve

Where this capability goes to work.

Marine, offshore & subsea

Propeller shafts, azipod parts, thruster housings to ±0.02 mm.

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Oil & gas

Rotating equipment parts, flanges, tube sheets — fully traceable.

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More industries

Defence, energy, mining, pulp & paper — see delivery sectors and proof.

References →

Ready to discuss your project?

Send your drawings and specifications. We reply within 1 business day and deliver a firm, actionable proposal within 48 hours.

Request a quote