Strength Welded In. Certified to Perform.
Certified Heavy Steelwork & Pressure Vessel Welding Services
When critical systems rely on structural integrity and pressure resistance, trust MSW GmbH, a leader in EN-certified pressure vessel fabricators and heavy steel construction company services. We combine high-performance welding with strict compliance standards for safety, durability, and flawless execution.
Our Core Services
Welding Solutions for Demanding Environments
We offer end-to-end heavy steelwork services for high-load, high-pressure, and high-risk applications. As an Austrian pressure vessel fabricator, we deliver with traceability, reliability, and real-world performance.
Certified Welding for Steel Structures
- EN 1090-compliant fabrication
- Structural beams, frames, platforms, and machine beds
- Welded assemblies for cranes, storage units & industrial frameworks
Pressure Vessel Manufacturing
- PED compliant pressure vessels for fluid, gas & steam
- Stainless, carbon steel, and duplex materials
- Vertical and horizontal configurations with full NDT documentation
Full Documentation & Testing
- WPS/PQR approvals
- Third-party inspection coordination
- Dimensional checks & radiographic testing on request
Our Technology & Infrastructure
Equipped to Handle the Heavyweights
MSW’s fabrication floor is built for bulk, scale, and precision. We house advanced welding systems and steel handling infrastructure that allow us to take on large-scale fabrications without sacrificing control. Our heavy steel construction company role starts with capacity and finishes with certified confidence.
- Heavy-duty gantry cranes for large assemblies
- Submerged Arc Welding (SAW) for thick-wall joints
- MIG/MAG, TIG, and manual arc welding stations
- Welding robot integration for repetitive tasks
- CNC flame cutting & beveling
- Custom jigs & fixtures for oversized components
- QA Lab with non-destructive testing options
Why Industry Leaders Choose
PED Compliant Pressure Vessels
We manufacture vessels in full alignment with the Pressure Equipment Directive 2014/68/EU, ensuring compliance, safety, and documentation for high-pressure systems.
Tailored Fabrication, Built to Your Specs
Every frame, tank, and assembly is customized to match your load demands, environmental conditions, and dimensional tolerances; no generic solutions here.
EN 1090 Certified Steel Structures
Our steel structures meet the most stringent EU guidelines for fabrication and load-bearing reliability, giving clients peace of mind on every installation.
Complete In-House Manufacturing
From raw material processing to welding, inspection, finishing, and delivery, our integrated workflow means faster lead times, less risk, and total project accountability.
Certified Welders. Controlled Processes. Guaranteed Results.
Our teams are certified under EN ISO 9606 and follow approved WPS/PQRs, ensuring the same level of quality, every time, for every weld.
Engineered for the World’s Toughest Environments
MSW supplies certified heavy steelwork & pressure vessel welding services to sectors where failure isn’t an option.
Aviation
We supply lightweight, complex components with high dimensional stability for structural panels, housings, and assemblies, aligned with EASA Part 21G standards.
Railway
Certified laser cutting and bending for railway industry applications, including brake system housings, snowplow assemblies, access panels, and cabin frameworks, all produced under EN 15085-2 CL1 compliance.
Research and Development
Fast, flexible support for low-volume prototyping, custom geometries, and test setups, ideal for universities, private labs, and innovation hubs across Europe.
Mechatronics & Systems Engineering
Automated mechatronic solutions for precise, reliable industrial performance.
CNC
Precision CNC turning and milling services for custom engineered components.
Our Clients & Partners
We work with innovative startups and established global enterprises alike.
Frequently Asked Questions
What standards do you follow for steelwork and pressure vessel welding?
We are EN-certified pressure vessel fabricators and comply with EN 1090, PED, and relevant international welding codes.
Do you provide testing and certification documentation?
Absolutely. We provide full welding documentation (WPS, WPQR, welder certs), dimensional checks, and coordinate third-party inspections for both structural and pressure systems.
How can I get a quote for certified welding services?
Reach out via our Contact Page, email us at office@msw.co.at, or submit your specs and drawings. Our engineering team will get back to you within 1–2 business days with a custom proposal.
Can you handle large, custom-built pressure vessels?
Yes. As an experienced Austrian pressure vessel fabricator, we specialize in custom vessel design and welding, including non-standard sizes and special alloys.
What industries use your heavy steelwork services?
Our clients come from transport, energy, mechanical engineering, infrastructure, water treatment, and industrial sectors that require compliance, scale, and structural integrity.