
Aluminium extrusion and machining of aluminium profiles – from billet to finished, assembled component.

Gerhardi AluTechnik GmbH
Lüdenscheid, North Rhine-WestphaliaNew on Amplifa
About GERHARDI
Gerhardi AluTechnik GmbH in Lüdenscheid manufactures custom aluminium extruded profiles – from the initial idea through technical design to production-ready manufacturing. The company extrudes profiles in various alloys and strengths with weights up to 10,000 g/m and profile diameters up to 220 mm within tight tolerance requirements. The value chain includes sawing, deburring, CNC milling, punching, drilling, bending and straightening as well as surface finishing through anodising, brightening, powder coating, brushing, grinding, polishing and chrome plating. In addition, welding, joining and assembly into finished products are offered. Customers include the automotive, construction and engineering, electronics, decorative components (furniture manufacturing, interior design, shop fitting), mechanical and apparatus engineering, and medical technology industries. The processes – from billet heating in gas and induction furnaces through extrusion to the automatic packaging line – are coordinated and automated. Specialised in aluminium since 1920, the family-run company founded in 1796 is backed by the WILMS Group.
- Site
- Lüdenscheid
- Processes
- Extrusion (aluminium profiles), Sawing, Deburring, CNC milling, Punching, Drilling, Bending, Straightening
- Materials
- Aluminium, Aluminium alloys (various strengths)
- Certificates
- IATF 16949, DIN EN ISO 9001, DIN EN ISO 14001, DIN EN ISO 50001, ASI (Aluminium Stewardship Initiative)
- Founded
- 1796
- Employees
- 70
- Industries
- Automotive, Construction and Engineering, Electronics, Decorative components (furniture manufacturing, interior design, shop fitting), Mechanical and apparatus engineering, Medical technology
- 01
Application development/engineering
- 02
Billet heating (gas and induction furnaces)
- 03
Extrusion
- 04
Sawing and calibration
- 05
Machining (deburring, CNC milling, punching, drilling, bending, straightening)
- 06
Surface finishing
- 07
Welding, joining and assembly
- 08
Automatic packaging
Materials & Processes
Aluminium
Main material for extruded profiles with low weight, good machinability and corrosion resistance.
Aluminium alloys (various strengths)
Various alloys and strengths for high-strength and lightweight precision components.
Location

Lüdenscheid
DEExtrusion and machining of aluminium profiles (production, administration)
- Part weight / size
- up to 10,000 g/m, Ø up to 220 mm
- Materials
- Aluminium, aluminium alloys
- Extrusion press
- Gas and induction furnaces (billet heating)
- Saws and calibration systems
- Automatic packaging line
- Forklifts and overhead cranes
Components & Applications

Inside the production


Industries
Processes & technical limits
| Processes | Tolerance | Max. part | Weight | Lot size | Materials |
|---|---|---|---|---|---|
| Extrusion (aluminium profiles)Forming | – | up to 220 mm profile diameter | 10,000 g/m | – | Aluminium, Aluminium alloys |
| SawingMachining | – | – | – | – | Aluminium |
| DeburringMachining | – | – | – | – | Aluminium |
| CNC millingMachining | – | – | – | – | Aluminium |
| PunchingForming | – | – | – | – | Aluminium |
| DrillingMachining | – | – | – | – | Aluminium |
| BendingForming | – | – | – | – | Aluminium |
| StraighteningForming | – | – | – | – | Aluminium |
| Anodising (natural/colour)Surface | – | – | – | – | Aluminium |
| Brightening (high-gloss)Surface | – | – | – | – | Aluminium |
| Powder coatingSurface | – | – | – | – | Aluminium |
| BrushingSurface | – | – | – | – | Aluminium |
| GrindingSurface | – | – | – | – | Aluminium |
| PolishingSurface | – | – | – | – | Aluminium |
| Chrome platingSurface | – | – | – | – | Aluminium |
| WeldingJoining | – | – | – | – | Aluminium |
| Joining and assembly of components into finished productsAssembly | – | – | – | – | Aluminium |
| CalibrationForming | – | – | – | – | Aluminium |
5 Anlagen & Maschinen
| Machine | Manufacturer / model | Quantity | Working area | Year built | Site |
|---|---|---|---|---|---|
| Extrusion press | – | – | – | – | Lüdenscheid |
| Gas and induction furnaces (billet heating) | – | – | – | – | Lüdenscheid |
| Automatic packaging line | – | – | – | – | Lüdenscheid |
| Forklifts and overhead cranes | – | – | – | – | Lüdenscheid |
| Saws and calibration systems | – | – | – | – | Lüdenscheid |
Additional services
Quality & Certification
Gerhardi AluTechnik GmbH is certified according to IATF 16949, DIN EN ISO 9001, DIN EN ISO 14001 and DIN EN ISO 50001; quality assurance is documented in the quality assurance guidelines. The stated quality rate is 99.89 %.
| Evidence | Lüdenscheid |
|---|---|
| IATF 16949 | |
| DIN EN ISO 9001 | |
| DIN EN ISO 14001 | |
| DIN EN ISO 50001 | |
| ASI (Aluminium Stewardship Initiative) |
History
- 1796
Foundation of GERHARDI
- 1920
Specialisation in aluminium; today one of Europe's high-performance extrusion plants
- heute
Family-run as part of the WILMS Group