STRATOSTEELIndustrial architect
EN / DESend RFQ

Heavy machining · Europe · one PO

You need a heavy part machined in Europe. This is the answer.

Stratosteel machines heavy parts under one purchase order with one responsibility. Demonstrated today: workpieces to 50 t static and 30 t rotary, form-position 0.03 to 0.05 mm, delivered with an EN 10204 3.1 certificate and a CMM report. Vertical turning to ø 2 700 mm, horizontal turning to ø 3 000 x 3 200 mm, deep drilling to ø 400 x 6 000 mm. Send the drawing, an engineer answers within 48 hours.

Send a drawing See the envelope

First technical answer within 48 hours. Firm quote in 3 to 7 working days once the production unit is confirmed.

Demonstrated · track record

Demonstrated envelope

In service in the network today. Every number on this table is documentable on request.

Workpiece50 t static / 30 t rotary
Envelope, Slovak core9 × 3 × 2.5 m
Envelope, network plant13 500 × 4 000 × 3 500 mm
Vertical turning (VTL)ø 2 700 mm
Horizontal turningø 3 000 × L 3 200 mm
Deep drillingø 400 × 6 000 mm
Horizontal boringto 50 t static
Form-position accuracy0.03 to 0.05 mm
Shaft coaxiality0.02 mm
Machine base20+ CNC centres, 3 VTL, 3 horizontal boring mills, 7 five-axis centres to IT6
Qualified route · not yet run under our PO

Qualified network route

Contracted through a certified European partner. Not yet exercised under a Stratosteel PO. Stated exactly as that.

Above the demonstrated envelope the network holds contracted partner routes for turning, grinding between centres and horizontal machining. They are qualified per project, not offered as a blanket capability, and the figures are given in the quote once the producing unit is confirmed for your part.

Why we label numbers: a company that sells verification cannot carry unverified claims. Demonstrated means the capability is in service in the network today and documented. Qualified means the partner and the contract exist and the route has not yet run under a Stratosteel PO. You will never have to guess which is which.

Rotary parts: welded then machined to ø 4 000 mm, 10 kg to 5 000 kg per part, dynamic balancing to ø 4 m.

What happens next

After you send the drawing.

WITHIN 48 H

First technical answer

An engineer replies with feasibility, the proposed process route and open questions. Not an autoresponder.

3 TO 7 DAYS

Firm quote

Price, lead time, documentation scope. Issued once the production unit is confirmed, so the number holds.

ONE PO

One responsibility

Machining, verification, documentation and delivery under one contract with Stratosteel s.r.o. We manage the plants. Audits at the producing works are arranged through us, not around us.

DELIVERY

Verified part, full file

EN 10204 3.1 certificate, CMM dimensional report, NDT protocol where specified. Traceability to heat number.

What we need from you: the drawing (PDF, STEP, DWG, DXF or IGES), material, quantity and target date. What we do not do: quote blind without a drawing, or start production without an agreed documentation scope. If the part is outside our envelope, we say so in the first reply. The full process →

What arrives at your dock

  • The part, machined to drawing
  • EN 10204 3.1 material certificate, 3.2 with named third party on request
  • Dimensional report with CMM trace: WENZEL LH 108, Mitutoyo BHN706, FARO laser tracker
  • NDT protocol per specification: UT, MT, PT in the network, RT via ISO 17025 laboratory
  • melt-and-pour origin stated in every quote, EU-only routes available on request. Where a non-EU route applies, we say so before you order.

Proof

6-year serial program, running: machined frames and welded structures for a forestry equipment OEM, 600+ parts per machine, one contract. Name under NDA. Direct Stratosteel program, stated as that. Proof page →

Live quotation work on turbine-class rotor machining for an energy OEM. Qualification track, stated as that.

Materials

S235, S355, S690QL, S960QL, HARDOX 400/500, 42CrMo4, 25CrMo4, 20MnCr5, 16MnCr5, C45, rail grades EA1N/A1N. Stainless and duplex to 1.4410, super-duplex, titanium, nickel alloys, Hastelloy 2.4602. Cast and forged steels, ductile and grey iron, bronze CuSn10.

Sourcing states

You choose where we enter: machine your supplied casting, forging or weldment. Or one PO covers the raw part and the machining, cast, forged or welded in the network to 50 t. Delivered machined, not raw.

Urgent capacity

The network runs with deliberate spare capacity. When a supplier fails mid-program, send the drawing and write URGENT in the subject. The 48 hour answer includes the earliest realistic slot.

Real parts, real machines

Heavy steel housing set up and bored on a horizontal boring mill
Heavy housing, horizontal boring
Deep hole drilling in cut, long boring bar entering a clamped steel workpiece
Deep drilling in cut
Large machined steel ring clamped on the machine table for finish turning
Large ring, clamped and finished
Large steel linkage arm finished on the machine table with bored eyes
Linkage arm, bored and faced
Long steel shaft turned between centres on a heavy horizontal lathe
Horizontal turning, long shaft
Heavy workpiece machined on a TOS Kurim FUQ 150 horizontal milling centre
Horizontal milling, 50 t class

Straight answers

The questions buyers ask about heavy machining.

Who can machine a 30 t rotor in Europe?
We machine rotors and rotary parts to 30 t under one purchase order, with dynamic balancing to diameter 4 m in the network. Demonstrated: 30 t rotary and 50 t static workpieces, shaft coaxiality to 0.02 mm, form-position 0.03 to 0.05 mm, documented with an EN 10204 3.1 certificate and a CMM report. Send the drawing to rfq@stratosteel.com and a first technical answer comes within 48 hours: feasibility, proposed route, open questions.
What is the largest component you machine today?
Demonstrated today: 50 t static and 30 t rotary, in an envelope of 9 x 3 x 2.5 m at the Slovak core and 13 500 x 4 000 x 3 500 mm at the network plant, with vertical turning to ø 2 700 mm and deep drilling to ø 400 x 6 000 mm. Above that envelope the network holds contracted partner routes that are qualified per project, and the figures for your part come with the quote once the producing unit is confirmed.
What heavy machining capacity is available in Central Europe on short notice?
The network runs with deliberate spare capacity and takes urgent work when a buyer's supplier has failed. Demonstrated envelope: 50 t static, 30 t rotary, envelope 9 x 3 x 2.5 m at the Slovak core and 13 500 x 4 000 x 3 500 mm at the network plant. Reply within 1 business day, first technical answer within 48 hours, firm quote in 3 to 7 working days once the production unit is confirmed.
What documentation comes with a heavy machined part?
EN 10204 3.1 material certificate as standard, 3.2 with a named third party on request. Dimensional report with CMM trace: WENZEL LH 108, Mitutoyo BHN706, FARO laser tracker for parts that do not fit a table. NDT protocol per specification: UT, MT, PT in the network, RT via an ISO 17025 accredited laboratory. Traceability to heat number. One PO covers all of it.
Can you machine our casting, forging or weldment, supplied by us?
Yes. You send your casting, forging, weldment or raw material, or just the drawing, and the network machines it to tolerance. Machining is also integrated with our own casting, forging and welding routes to 50 t, so one PO can cover the raw part and the finished component.
What happens after we send a heavy machining RFQ?
Within 48 hours an engineer sends the first technical answer: feasibility, proposed process route, open questions. The firm quote follows in 3 to 7 working days once the production unit is confirmed. Then one PO with Stratosteel covers machining, verification, documentation and delivery. We manage the plants. You audit through us.

Related

One PO can start earlier in the chain.

Heavy machining, full specification

Machines, tolerances and evidence in depth.

ONE PO, the product

One contract, one responsibility, verified delivery.

Machined parts, serial and small

From single pieces to 4 000 per batch, five-axis to IT6.

Send the drawing. Get an answer in 48 hours.

1 to 3 drawings to rfq@stratosteel.com or the form. Feasibility, route and questions within 48 hours. Firm quote in 3 to 7 working days once the production unit is confirmed.

Send a drawingrfq@stratosteel.com