
Steel construction, structural metalwork, special machinery construction and bulk material conveying technology – manufacturing and assembly from a single source.

Ahrens – Stahlbau GmbH & Co. KG
Drakenburg (Weser)New on Amplifa
About us
Ahrens – Stahlbau GmbH & Co. KG from Drakenburg on the River Weser manufactures and assembles steel and metal constructions for industry and trade. The range of services includes steel construction and metalworking, structural metalwork, special machinery construction as well as repair and conversion of machinery and systems. A focus lies on the manufacture and assembly of conveying technology for all kinds of bulk materials, such as conveyor belts, sand pans, classifiers, cyclone systems, silos or swimming belts for gravel works. In the company's own 1000 sqm workshop hall with a 10-tonne crane runway, sheet metal is processed by sawing, cutting, edging, rolling, bending, turning and milling, supplemented by welding work. Production is carried out in steel as single parts and small series up to component lengths of 3000 mm. In addition, the master metalworkers offer international assembly work and industrial assembly. The company is a master-certified business and a training company for metalworkers in the construction technology specialisation and is run by the Ahrens family in the seventh generation.
- Site
- Drakenburg
- Processes
- Sheet cutting, Edging (swivel bending), Sheet rolling, Turning, Milling, Welding, Sawing, Cutting
- Materials
- Steel, Sheet metal processing
- Founded
- 1827
- Industries
- Steel construction, Plant engineering, Conveying technology / bulk materials, Mechanical engineering
- 01
Sheet cutting (sawing, cutting)
- 02
Edging and bending
- 03
Sheet rolling
- 04
Turning and milling
- 05
Welding / structural metalwork
- 06
Assembly national and international
Materials and processes
Steel
Structural steel for steel construction, structural metalwork, conveying technology and special machinery construction.
Sheet metal processing
Cutting up to 3000 mm at 12 mm sheet thickness, swivel bending up to 3000 × 6 mm, rolling up to 2000 × 6 mm.
Locations

Drakenburg
DEHeadquarters, workshop and assembly
- Lot size
- Single parts and small series
- Materials
- Steel
- 1000 sqm workshop hall
- 10 t crane runway
- Swivel bending machine up to 3000 × 6 mm
- Sheet rolling machine up to 2000 × 6 mm
- Lathes
- Milling bench
Components







Inside the production







Industries
Processes & technical limits
| Processes | Tolerance | Max. part | Weight | Lot size | Materials |
|---|---|---|---|---|---|
| Sheet cuttingMachining | – | 3000 mm | – | – | Steel |
| Edging (swivel bending)Forming | – | 3000 mm | – | – | Steel |
| Sheet rollingForming | – | 2000 mm | – | – | Steel |
| TurningMachining | – | – | – | – | Steel |
| MillingMachining | – | – | – | – | Steel |
| WeldingJoining | – | – | – | – | Steel |
| SawingMachining | – | – | – | – | Steel |
| CuttingMachining | – | – | – | – | Steel |
| BendingForming | – | – | – | – | Steel |
| Sheet metal processingForming | – | – | – | – | Steel |
| Structural metalworkJoining | – | – | – | – | Steel |
| Steel constructionAssembly | – | – | – | – | Steel |
| Special machinery constructionAssembly | – | – | – | – | Steel |
| Repair and conversion of machinery and systemsAssembly | – | – | – | – | – |
| Assembly work / industrial assemblyAssembly | – | – | – | – | – |
| Manufacture and assembly of conveying technology for bulk materialsAssembly | – | – | – | – | Steel |
| Overhaul of machinery and systemsAssembly | – | – | – | – | – |
5 Anlagen & Maschinen
| Machine | Manufacturer / model | Quantity | Working area | Year built | Site |
|---|---|---|---|---|---|
| Crane runway | – | 1 | 10 t load capacity | – | Drakenburg |
| Swivel bending machine | – | 1 | 3000 mm at 6 mm sheet thickness | – | Drakenburg |
| Sheet rolling machine | – | 1 | 2000 mm at 6 mm sheet thickness | – | Drakenburg |
| Lathe | – | – | – | – | Drakenburg |
| Milling bench | – | – | – | – | Drakenburg |
Additional services
History
- 1643
Family chronicle traceable in Drakenburg
- 1827
Johann-Heinrich Ahrens returns to Drakenburg after his journeyman travels and practises the blacksmith's and locksmith's trade independently
- 1840
Oldest surviving invoice: repair work on the Weser ferry for the town of Drakenburg
- 1864
Last journeyman's book entry of master locksmith Friedrich Ahrens
- 1910
Master craftsman's certificate of master blacksmith Heinrich Ahrens
- 1952
Master craftsman's certificate of master blacksmith Fritz Ahrens
- 1976
Master craftsman's certificate of master blacksmith and locksmith Heinrich Ahrens
- 2004
Master craftsman's certificate of master metalworker Hendrik Ahrens
- 2012
Master craftsman's certificate of master metalworker Heiner Ahrens