Aerospace & Defense — Precision Welded and Machined Components for Global OEMs
Certified fabrication of precision tools, assembly fixtures, satellite transport units, and structures used in aircraft assembly. ISO 3834-2 and EN 1090-2 EXC4 certified. 0.05 mm positional accuracy over 10 metres. Since 1994.
One Partner for Aerospace-Grade Components — From Raw Material to Verified Assembly
Steiger manufactures precision welded and machined steel components and assembly fixtures for global aerospace OEMs and Tier-1 suppliers. Our integrated production approach — combining certified welding, 5-axis CNC machining, and laser tracker verification — ensures that every component is dimensionally verified, fully traceable, and ready for integration into aircraft assembly programmes.
We serve clients in the aerospace and defense industries who require documented quality at every production phase, from certified material procurement through welding, precision machining, dimensional verification, and delivery.
Certified to the Standards Aerospace and Defense Demand
Every component we produce for the aerospace and defense sector is manufactured under a comprehensive quality management system. Welding procedures are qualified and traceable. Materials carry mill certificates. Dimensional verification is performed with advanced metrology equipment before shipment.
Certifications:
- EN 1090-2 EXC4 — Execution Class 4: for structural steel components
- ISO 3834-2 — Comprehensive Quality Requirements for Fusion Welding of Metallic Materials
- ISO 9001:2015 — Quality Management Systems
- ISO 14001:2015 — Environmental Management Systems
- ISO 45001:2023 — Occupational Health & Safety Management Systems
Personnel & Qualifications:
- 10 TÜV Rheinland-certified welders (ISO 9606-1)
- 2 International/European Welding Engineers (IWE/EWE)
- 2 International Welding Practitioners (IWP)
- 1 International Welding Technologist (IWT)
- 20+ documented Welding Procedure Qualification Records (WPQRs)
- Full material traceability to mill test certificates (MTCs)
Aerospace and Defense Industry Applications
Aerospace
Structures used in aircraft assembly
Precision tools and assembly fixtures for aerospace programmes
Satellite transport units
Custom welded and machined steel components for OEMs and Tier-1 suppliers
Defense & Security
Precision welded and machined structural components for defense applications
Custom fabrications requiring full material traceability and certified quality management
Advanced Manufacturing for Aerospace-Grade Precision Components
5-axis CNC Gantry Milling
- Dimensions: 12,000 x 4,000 x 1,500 mm travel
- Applications: Large assembly fixtures, structural frames, aircraft assembly structures
- Key capability: Handles components up to 12 metres in length
3+2-axis CNC Horizontal Milling
- Dimensions: 12,000 x 1,250 x 3,500 mm travel
- Applications: Long structural components, precision fixture frames
- Key capability: Extended reach for large welded assemblies
3-axis and 5-axis CNC Vertical Milling Centres
- Dimensions: Up to 3,000 x 1,000 x 1,500 mm
- Applications: Medium-sized components, precision fixtures, tooling
Turning Capabilities
- Traditional lathes: Ø350 x 1,500 mm
- Frontal lathe: Ø1,500 x 200 mm
- Applications: Cylindrical components, shaft machining
Additional Machining Operations
- Drilling, boring, tapping, sawing, chamfering
- Grinding for surface finish correction
- Maximum component weight: up to 25 tonnes
- Total: 10+ CNC machining centres and conventional machines
Welding Processes
- Gas Metal Arc Welding (GMAW/MIG-MAG)
- Gas Tungsten Arc Welding (GTAW/TIG)
- Submerged Arc Welding (SAW)
- Shielded Metal Arc Welding (SMAW/MMA)
Material Cutting
- CNC oxy-fuel plate cutting: 12,000 x 4,000 mm, thickness up to 120 mm
- CNC plasma plate cutting: 12,000 x 4,000 mm, thickness up to 40 mm
- NC Press Brake: up to 5,000 mm length, 400-tonne pressure
Surface Treatment
- Shot grit blasting (ISO 8501-1): cabin 14 m x 5.5 m x 5 m
- Industrial airless spray painting: heated paint shop, 540 m²
Capacity:
- Component size: up to 12 metres in length
- Component weight: up to 25 tonnes
- Production area: over 7,000 m² with 9 bridge cranes (35-tonne capacity)
Measurable Accuracy — Verified with Advanced Metrology
Dimensional Verification
- Leica Absolute Tracker AT403: Laser tracker with measurement volume from 0.8 m to 320 m in diameter
- Hexagon Romer Portable Measuring Arm: 2.5 m working diameter with integrated laser scanner and tactile probing
- Achievable accuracy: 0.05 mm positional accuracy over 10 metres on welded and machined structures
Non-Destructive Testing (NDT)
- Visual Examination (VT) — Level II, in-house
- Liquid Penetrant Testing (PT) — Level II, in-house
- Ultrasonic Testing (UT) — external partners
- Radiographic Testing (X-ray) — external partners
Material Traceability
- Mill certificates to EN 10204 3.1 or 3.2
- Material verification and documentation at each production stage
- Certified material suppliers
What this means:
We do not just manufacture components — we deliver verified, measured assemblies ready for integration. Every component is inspected and dimensionally verified before it leaves our facility. For aerospace and defense clients, full documentation packages are available upon request.
How We Execute Aerospace
and Defense Fabrication Projects
Step 1: Technical Review and Quotation
Submit your drawings (PDF, DWG, STEP) or specifications
Our engineers review for manufacturability and identify potential challenges
Detailed quote within 3–5 business days
Step 2: Design for Manufacturing (DFM)
Welding and machining sequence planning
Fixture and tooling design (if required)
Material specification and procurement planning
Quality control plan development
Step 3: Material Procurement
Certified material suppliers
Mill certificates and full traceability
Material verification and documentation
Step 4: Cutting, Forming, and Preparation
CNC plasma or oxy-fuel cutting
NC press brake bending and forming
Component preparation to drawing
Step 5: Assembly and Welding
Certified welders assigned per WPS
Welding process selected per material, thickness, and application
In-process dimensional verification
In-process NDT (VT, PT)
Step 6: Stress Relief (If Required)
Thermal stress relief for large welded assemblies requiring tight post-machining tolerances
Step 7: CNC Machining (If Required)
Transfer to appropriate CNC machining centre
Precision machining to specification
0.05 mm positional accuracy achievable over 10 metres
Step 8: Verification & Testing
Dimensional verification with Leica laser tracker and Hexagon Romer portable arm
NDT (UT, X-ray if specified)
Surface finish verification
Full documentation package with measurement reports
Step 9: Surface Treatment (If Required)
Shot grit blasting to specified standard (ISO 8501-1)
Industrial airless spray painting (heated paint shop, 540 m²)
Coating thickness and adhesion testing
Step 10: Packaging and Delivery
Secure packaging for transport
On-site installation support available
Technical support during commissioning
What Makes Our Aerospace and Defense Manufacturing Different
Micron-Level Precision on Large-Scale Components
Aerospace assembly structures and precision fixtures require both high accuracy and large scale — a combination that eliminates most fabricators. Our 5-axis CNC gantry achieves 0.05 mm positional accuracy over 10 metres on welded and machined structures. This is the measurable, documented precision aerospace programmes require.
Integrated Fabrication from Welding to Machined Delivery
Our production chain is internally integrated: cutting, welding, stress relief, CNC machining, dimensional verification, surface treatment, and delivery all take place under one roof. For aerospace clients, this means a single responsible partner with full control over every phase — no subcontracting of critical operations.
Global Reference Clients
Steiger has manufactured components for Airbus and Lockheed Martin — two of the most demanding quality environments in global manufacturing. Meeting their requirements has shaped our quality management practices and production discipline.
EN 1090-2 EXC4 and ISO 3834-2 Certified
Our welding operations are certified to ISO 3834-2 (Comprehensive Quality Requirements for Fusion Welding) and our structural fabrication to EN 1090-2 Execution Class 4. All welding is performed by TÜV Rheinland-certified welders under documented, qualified welding procedures.
Family-Owned Reliability Since 1994
Every component that leaves our production floor carries our name. We are not a high-volume job shop — we are a manufacturing partner that treats each project as if it were our own. Direct access to decision-makers, flexible problem-solving, and long-term partnership focus.
“Professional, Experienced, Trustworthy”
– MALCHEM ROMANIA
Frequently Asked Questions
We manufacture structures used in aircraft assembly, satellite transport units, and precision tools and assembly fixtures for aerospace OEMs and Tier-1 suppliers. All components are produced with full material traceability and certified welding procedures.
We achieve 0.05 mm positional accuracy over 10 metres on welded and machined structures, verified using a Leica Absolute Tracker AT403 laser tracker and a Hexagon Romer portable measuring arm.
We handle welded and machined components up to 12 metres in length and 25 tonnes in weight. Our facility has 9 bridge cranes providing a 35-tonne lifting capacity and a 5-axis CNC gantry with a working envel ope of 12,000 x 4,000 x 1,500 mm.
Our operations are certified to ISO 3834-2 (Comprehensive Quality Requirements for Fusion Welding), EN 1090-2 EXC4 (Execution Class 4), and ISO 9001:2015. All welding is performed by TÜV Rheinland-certified welders under qualified welding procedures (WPQRs).
Yes. We provide full material traceability with mill test certificates to EN 10204 3.1 or 3.2, as required by the application.
Both. Our engineering team works from STEP, IGES, and other 3D formats, as well as traditional 2D drawings (PDF, DWG). We provide Design for Manufacturing feedback in both cases.
We provide shot grit blasting to ISO 8501-1 standards (cabin: 14 m x 5.5 m x 5 m) and industrial airless spray painting in a heated paint shop of 540 m². Coating thickness and adhesion testing are available.
Lead times depend on project complexity, material availability, and current production schedules. Please contact us with your specifications and timeline for a realistic assessment.
Ready to Discuss Your Aerospace or Defense Project?
Tell us your component type, specifications, and timeline. Our engineers will review your requirements and respond with a detailed technical quote.