Steel construction, stairs, railings, canopies and series parts in steel, stainless steel and aluminium with in-house sheet metal processing.
a2 Metallbau Armbruster GmbH
Oberwolfach (Am Burghügel 3)New on Amplifa
About a2 Metallbau
a2 Metallbau Armbruster GmbH is a family-run metal construction company based in Oberwolfach in the Black Forest. Founded in 1969, the company manufactures steel structures such as bridge and building load-bearing frameworks, roof and gable structures, stairs in steel, stainless steel and aluminium, balconies, railings, gates and doors as well as carports and canopies with roof surfaces made of laminated and safety glass, trapezoidal and sandwich panels. In addition, the company produces series parts and accessory parts, which are used throughout Europe among other applications, and carries out refurbishment work with load-bearing steel structures for load dissipation. Production includes laser cutting (CO2 system), plasma cutting, sheet bending, sheet straightening, thread cutting and welding to EN 1090-2 in execution classes EXC1 to EXC2; surface finishing is carried out by partners via hot-dip galvanizing and powder coating. From CAD 3D design through manufacturing to assembly, projects are offered turnkey for municipalities, private and commercial customers. The 15-member team works in two production halls at the Oberwolfach site.
- Site
- Oberwolfach
- Processes
- Steel construction (bridges, industrial buildings, roof and gable structures), Staircase construction (landing, spiral, helical and straight staircases), Balcony and railing construction, Conversion & refurbishment (steel structures for load dissipation in buildings), Carport & canopy (construction, glass, trapezoidal and sandwich roofs), Metal design (hand-forged work, objects, privacy screens, tables), Gate and door manufacturing (swing and sliding gates, garden gates), Series and accessory parts manufacturing
- Materials
- Steel, Stainless steels (stainless steel), Aluminium, Glass (laminated/safety glass, insulating glass), Wood, Plastics, Galvanized steel, Steel S355
- Certificates
- EN 1090-1/EN 1090-2 certificate of conformity factory production control, Welding certificate (EN 1090-2, EXC1–EXC2), EN 1090 (EXC1–EXC2, System 2+), Welding certificate EN 1090-2 (111/135/141), ISO 9001
- Founded
- 1969
- Employees
- 15
- Industries
- Construction industry, Wood processing trade, Municipalities/public sector, Commercial customers, Private customers, Industry
- 01
Planning and design (CAD 3D)
- 02
Laser cutting
- 03
Plasma cutting
- 04
Sheet bending and sheet straightening
- 05
Thread cutting
- 06
Welding (111/135/141)
- 07
Surface (hot-dip galvanizing/powder coating with partners)
- 08
Assembly
Materials & Processes
Steel S355
Base material for load-bearing steel components according to welding certificate and EN 1090 certification.
Stainless steels
For stairs, railings and visible components in indoor and outdoor areas.
Aluminium
Material for stairs, railings and substructures.
Galvanized steel
Corrosion protection for carports, canopies and steel structures (DIN EN ISO 1461).
Laminated/safety glass, insulating glass
Roof surfaces and infills for glass roofs, entrance canopies and canopies.
Wood
Combined with steel substructures for carports and canopies.
Plastics
Complementary material for individual metal construction projects.
Sites
Oberwolfach
DEProduction and administration; metalworking shop with two production halls (focus of second hall: sheet metal cutting
- Lot size
- One-off production to series parts
- Materials
- Steel, stainless steel, aluminium
- CO2 laser cutting machine (2017)
- Plasma cutting system (2010)
- Press brake (2010)
- Straightening machine URM 80E (2010)
- Thread cutting machine (2015)
- Overhead crane (2021)
Industries
Processes & technical limits
| Processes | Tolerance | Max. part | Weight | Lot size | Materials |
|---|---|---|---|---|---|
| Steel construction (bridges, industrial buildings, roof and gable structures)Assembly | – | – | – | – | Steel |
| Staircase construction (landing, spiral, helical and straight staircases)Assembly | – | – | – | – | Steel, Stainless steel, Aluminium |
| Balcony and railing constructionAssembly | – | – | – | – | Steel, Stainless steel, Aluminium |
| Conversion & refurbishment (steel structures for load dissipation in buildings)Assembly | – | – | – | – | Steel |
| Carport & canopy (construction, glass, trapezoidal and sandwich roofs)Assembly | – | – | – | – | Steel, Stainless steel, Aluminium, Glass, Wood |
| Metal design (hand-forged work, objects, privacy screens, tables)Assembly | – | – | – | – | Steel, Stainless steel, Metal |
| Gate and door manufacturing (swing and sliding gates, garden gates)Assembly | – | – | – | – | Steel, Stainless steel, Aluminium |
| Series and accessory parts manufacturingAssembly | – | – | – | – | Steel, Stainless steel, Aluminium |
| Laser cutting (CO2 laser cutting system, laser-cut sheets)Machining | – | – | – | – | Steel |
| Plasma cuttingMachining | – | – | – | – | Steel |
| Sheet bending (press brake, folding)Forming | – | – | – | – | Steel |
| Sheet straighteningForming | – | – | – | – | Steel |
| Thread cuttingMachining | – | – | – | – | Steel |
| Welding (manual arc welding 111, MAG welding 135, TIG welding 141)Joining | – | – | – | – | S355, stainless steels |
| Planning and design (CAD 3D)Engineering | – | – | – | – | – |
| Decorative smithy (forging work)Forming | – | – | – | – | Steel, Metal |
| Hot-dip galvanizing (in cooperation with partners on own constructions)Surface treatment | – | – | – | – | Steel |
| Powder coating (on own constructions)Surface treatment | – | – | – | – | Steel |
6 Anlagen & Maschinen
| Machine | Manufacturer / model | Quantity | Working area | Year built | Site |
|---|---|---|---|---|---|
| CO2 laser cutting machine | – | 1 | – | 2017 | Oberwolfach |
| Plasma cutting system | – | 1 | – | 2010 | Oberwolfach |
| Press brake | – | 1 | – | 2010 | Oberwolfach |
| Straightening machine | URM 80E | 1 | – | 2010 | Oberwolfach |
| Thread cutting machine | – | 1 | – | 2015 | Oberwolfach |
| Overhead crane | – | 1 | – | 2021 | Oberwolfach |
Additional services
Reference customers
Quality & Certification
Prefabricated load-bearing components and steel construction kits are manufactured in accordance with EN 1090-1/EN 1090-2 in execution classes EXC1 to EXC2 (System 2+). Welding supervision by IWS-certified management; certificates from the Test Institute for Steel, Timber and Stone at KIT Karlsruhe, valid until 13.02.2029.
| Evidence | Oberwolfach |
|---|---|
| EN 1090 (EXC1–EXC2, System 2+) | |
| Welding certificate EN 1090-2 (111/135/141) | |
| ISO 9001 |
History
- 1969
Company founded by B. Armbruster, first workshop in the Langenbach, Wolfach; initially primarily series parts (spacers) for the construction industry
- 1982
New construction of the production facility at today's Oberwolfach site
- 1998
Introduction of IT systems and CAD
- 2004
Introduction of CAD 3D
- 2009
Construction of a second production hall with a focus on sheet metal cutting and processing
- 2010
Taken over by Daniel Armbruster; commissioning of plasma cutting system, press brake and straightening machine URM 80E
- 2015
Opening of a2 Unikat and outdoor exhibition; commissioning of thread cutting machine
- 2017
Commissioning of the CO2 laser cutting machine
- 2021
Commissioning of a new overhead crane
- 2022
Conversion into a GmbH
- 2023
Renovation and renewal of the outdoor exhibition