Steel, Stainless Steel, and Aluminum Construction: Laser Cutting, Sheet Metalworking, Locksmith Work, Pipe and Plant Engineering with Assembly
Lorenzen Edelstahlbau GmbH
25864 LöwenstedtNew on Amplifa
About Lorenzen Edelstahlbau GmbH
Lorenzen Edelstahlbau GmbH is a metal construction company located in Löwenstedt in North Frisia (Schleswig-Holstein), which has been manufacturing constructions from structural steel, stainless steel, and aluminum since 1994. The range of services includes laser cutting (steel up to 22 mm, stainless steel and aluminum up to 14 mm), sheet metal cutting, edge trimming, punching, sawing, turning, sheet metal rolling, as well as pipe and profile bending, supplemented by certified welding work according to DIN EN 3834-3 and DIN EN 1090-2 (EXC 2). Stair and balcony constructions, railings, pipelines, wall penetrations, plant components, and special constructions are manufactured according to customer request—from technical planning through production to operational assembly. Customers include companies from water and wastewater technology, construction, the food industry, agriculture, and shipbuilding; projects within the EU have also been realized. The company employs around 20 people, including journeymen and apprentices.
- Site
- Löwenstedt
- Processes
- Laser Cutting, Stair and Balcony Construction and Railings (Interior + Exterior), Balcony Construction and Railings, Pipe Construction, Plant Engineering, Special Construction according to Customer Wishes, Subcontract and Series Production, Assembly and Dismantling Work
- Materials
- Structural Steel (S235-S275), Stainless Steels (Edelstahl), Stainless Steel V2A, Stainless Steel V4A, Aluminum, Galvanized Steel, Flat Steel, Plastic (3D Printing)
- Certificates
- DIN EN 3834-3, DIN EN 1090-2 (EXC 2), ISO 9001
- Founded
- 1994
- Employees
- 20
- Industries
- Water and Wastewater Technology, Construction, Food Industry, Agriculture, Shipbuilding, Waste Technology
- 01
Technical Planning and Construction
- 02
Laser Cutting
- 03
Sheet Metal Cutting, Trimming, Punching, Rolling, Bending
- 04
Welding (MAG, MIG)
- 05
Assembly and Final Inspection
- 06
Assembly at Customer Site
Materials and Processes
Structural Steel S235–S275
Base material for steel constructions, staircases, systems, and laser cuts up to 22 mm sheet thickness.
Stainless Steel V2A (corrosion-resistant steel)
Corrosion-resistant material for railings, wall penetrations, and system components, laser cut up to 14 mm.
Stainless Steel V4A
Seawater and chloride-resistant stainless steel for demanding applications such as wall penetrations.
Aluminum
Lightweight material for balcony and stair railings as well as sheet metal parts up to 14 mm sheet thickness.
Galvanized Steel
For long-lasting structures in private and commercial construction projects.
Plastic (3D printing)
Accessories manufactured via additive process up to 320×320×320 mm.
Locations
Löwenstedt
DEHeadquarters with production and administration
- Lot size
- Single and series production
- Materials
- Structural steel, stainless steel, aluminum, plastic
- Laser Cutting Machine ACE Laser ST 3015 6.0R (3000×1500 mm, 6 kW)
- Plate Shear 3000 mm
- NC Folding Machine 3000 mm, 1250 kN
- Peddinghaus Punch
- 2 Band Saws up to 350 mm
- Lathe Spindle Height 280 mm
- Sheet Metal Roller up to 8 mm, 1200 mm
- Pipe and Profile Bending Machine KNUTH KPB81
- Seamless Pipe Bending Machine ercolina up to ø48.3 mm
- 3D Printer up to 320×320×320 mm
- Welding Plants MAG AC/DC, WIG AC/DC
- Column Swing Crane 7 m, 800 kg
Components and Reference Projects
Inside the production
Industries
Processes & technical limits
| Processes | Tolerance | Max. part | Weight | Lot size | Materials |
|---|---|---|---|---|---|
| Laser CuttingMachining | – | 3000x1500 mm (Table Size) | – | – | Steel up to 22 mm, Stainless Steel up to 14 mm, Aluminum up to 14 mm |
| Stair and Balcony Construction and Railings (Interior + Exterior)Assembly | – | – | – | – | Structural Steel, Stainless Steel, Aluminum |
| Balcony Construction and RailingsAssembly | – | – | – | – | Structural Steel, Stainless Steel, Aluminum |
| Pipe ConstructionJoining | – | – | – | – | Structural Steel, Stainless Steel, Aluminum |
| Plant EngineeringAssembly | – | – | – | – | Structural Steel, Stainless Steel, Aluminum |
| Special Construction according to Customer WishesAssembly | – | – | – | – | Structural Steel, Stainless Steel, Aluminum |
| Subcontract and Series ProductionJoining | – | – | – | – | Structural Steel, Stainless Steel, Aluminum |
| Assembly and Dismantling WorkAssembly | – | – | – | – | – |
| Locksmith and Maintenance WorkAssembly | – | – | – | – | – |
| Maintenance WorkAssembly | – | – | – | – | – |
| Welding (MAG AC/DC, WIG AC/DC)Joining | – | – | – | – | Structural Steel, Stainless Steel, Aluminum |
| Certified Welding Expert according to DIN EN 3834-3 and DIN EN 1090-2 (EXC 2)Joining | – | – | – | – | – |
| Sheet Metal Cutting (Plate Shear)Forming | – | 3000 mm cut width | – | – | Steel up to 6 mm, Stainless Steel up to 5 mm |
| Edge Trimming (NC-controlled Folding Machine)Forming | – | 3000 mm working width | – | – | – |
| Punch (Peddinghaus Punch)Machining | – | – | – | – | – |
| Sawing (Band Saws)Machining | – | up to 350 mm material width/diameter | – | – | – |
| Turning (Lathe)Machining | – | Spindle length 800 mm × Spindle height 280 mm | – | – | – |
| Sheet Metal RollingForming | – | up to 1200 mm width | – | – | Sheet up to 8 mm thickness |
| Pipe and Profile BendingForming | – | – | – | – | – |
| Seamless Pipe BendingForming | – | – | – | – | Pipes up to ø48.3 mm |
| 3D Printing of Plastic AccessoriesAdditive | – | 320 mm × 320 mm × 320 mm | – | – | Plastic |
| Technical Planning to Operational AssemblyEngineering | – | – | – | – | – |
12 Anlagen & Maschinen
| Machine | Manufacturer / model | Quantity | Working area | Year built | Site |
|---|---|---|---|---|---|
| Laser Cutting Machine | ACE Laser ST 3015 6.0R | 1 | 3000x1500 mm, 6 kW power, steel up to 22 mm, stainless steel up to 14 mm | 2025 | Löwenstedt |
| Plate Shear | – | 1 | 3000 mm cutting width, steel 6 mm, stainless steel 5 mm | – | Löwenstedt |
| NC-controlled Folding Machine | – | 1 | 3000 mm working width, 1250 kN pressing force | – | Löwenstedt |
| Punch | Peddinghaus | 1 | – | – | Löwenstedt |
| Band Saw | – | 2 | up to max. 350 mm material width/diameter | – | Löwenstedt |
| Lathe | – | 1 | Spindle height 280 mm, Spindle length 800 mm | – | Löwenstedt |
| Sheet Metal Roller | – | 1 | up to 8 mm thickness and 1200 mm width | – | Löwenstedt |
| Pipe and Profile Bending Machine | KNUTH KPB81 | 1 | – | – | Löwenstedt |
| Pipe Bending Machine (Seamless) | ercolina | 1 | up to ø48.3 mm | – | Löwenstedt |
| 3D Printer | – | 1 | up to 320x320x320 mm | 2025 | Löwenstedt |
| Welding Plants (MAG AC/DC, WIG AC/DC) | – | – | – | – | Löwenstedt |
| Column Swing Crane | – | 1 | 7 m reach, 800 kg capacity | 2025 | Löwenstedt |
Additional services
Reference customers
Quality and Certification
As a certified welding expert according to DIN EN 3834-3 and DIN EN 1090-2 (EXC 2), Lorenzen Edelstahlbau manufactures according to recognized melting and load-bearing test certificates.
| Evidence | Löwenstedt |
|---|---|
| DIN EN 1090-2 (EXC 2) | |
| DIN EN 3834-3 | |
| ISO 9001 |
Company History
- 1994
Foundion of Lorenzen Edelstahlbau GmbH in Löwenstedt by Helmut and Horst Lorenzen; production in a rented smithy
- 1996/97
Acquisition of Old Horseman's GmbH in Süderstapel, relocation of production to Süderstapel
- 1998/1999
Construction of a larger production hall in Löwenstedt, closure of Old Horseman's GmbH
- 2000
First apprentice (Mechanical Engineer) begins
- 2007/2008
First expansion, seven workshop jobs
- 2012
Construction of a new warehouse
- 2014
20th anniversary, open day, 8 journeymen and 2 apprentices
- 2015
Horst Lorenzen retires as Managing Director and shareholder
- 2019
25th anniversary, renovation of the warehouse, 8 journeymen and 3 apprentices
- 2022
Stefan Lorenzen becomes Managing Director alongside Helmut Lorenzen
- 2024
30th company anniversary
- 2025
Helmut Lorenzen transfers company shares to Stefan Lorenzen; Stefan is sole Managing Director after retirement; company has 20 employees
- 2025
Investment in 6-kW laser cutting machine, sheet metal racking, and column swing crane
- 2026
Biogas division is removed from the portfolio and recommended to Nord-Metallic GmbH & Co. KG