
CNC machining of prototypes and small to medium series in aluminium, steel, titanium, brass, copper and plastics.
Karlheinz Hahn Konstruktion & Entwicklung Produktions GmbH
StraubingNew on Amplifa
About us
The Karlheinz Hahn Konstruktion & Entwicklung Produktions GmbH is a medium-sized machining company based in Straubing. On 1000 m² of production and office space, the company manufactures mechanically machined components from aluminium, steel, titanium, magnesium, brass, copper and plastics. The machine park comprises five 5-axis and two 3-axis milling centres from Hermle and DMG as well as a CNC lathe with short bar feeder. The offering is complemented by rapid prototyping with a 3D ABS printer, welding (TIG & MAG), vibratory finishing, sandblasting and parts washing. Customers come from the automotive industry (prototypes and special series), the manufacture of filling and labelling machines and special machinery construction; references include BMW Group, KRONES AG and SENNEBOGEN. The company supports its customers already at the concept stage, in engineering and in the production of the first prototypes.
- Site
- Straubing
- Processes
- CNC milling, 5-axis milling, 3-axis milling, CNC turning, Welding TIG & MAG, Vibratory finishing, Sandblasting, Parts washing
- Materials
- Aluminium, Steel, Titanium, Magnesium, Brass, Copper, Plastic, ABS plastic
- Certificates
- CNC measuring room (gantry coordinate measuring machine)
- Industries
- Automotive (prototypes and special series), Filling and labelling machines, Special machinery construction
- 01
Engineering / Design
- 02
Rapid Prototyping (3D Printing ABS)
- 03
Sawing (Band Saw)
- 04
CNC Milling 3- and 5-Axis
- 05
CNC Turning
- 06
Welding TIG & MAG
- 07
Vibratory Finishing / Sandblasting
- 08
Parts Washing
- 09
CNC Measurement (Gantry Coordinate Measuring Machine)
Materials & Processes
Aluminium
Light metal for machined components, including for prototypes and special series of the automotive industry.
Steel
Material for highly stressed machined components in mechanical engineering.
Titanium
For demanding, lightweight and strong components in machining.
Magnesium
Light metal for machined components with low density.
Brass
Material for machined components with good machinability.
Copper
For machined components, e.g. with conductivity requirements.
Plastic
Machining of plastic parts; ABS is used in rapid prototyping.
Rapid Prototyping (ABS)
Production of sample parts from ABS for assembly trials and functional testing without tooling costs.
Locations

Straubing
DEProduction and office
- Lot size
- Small and medium series
- Materials
- Aluminium, steel, titanium, magnesium, brass, copper, plastic
- 5x 5-axis milling centres (Hermle/DMG; 600x450x450, 850x700x500, 1200x900x500 mm)
- 2x 3-axis milling centres (635x510x460 mm)
- 1x CNC lathe with short bar feeder (DMG, 140 mm chuck, 12 driven tools)
- 1x gantry coordinate measuring machine (500x1000x500 mm)
- 1x 3D ABS printer
- 1x welding station (TIG & MAG)
- 1x lathe
- 2x band saws
- 2x vibratory finishing machines
- 1x sandblasting cabinet
- 1x parts washing machine
Components



Inside the production


Industries
Processes & technical limits
| Processes | Tolerance | Max. part | Weight | Lot size | Materials |
|---|---|---|---|---|---|
| CNC millingMachining | – | 600 mm × 450 mm | – | Small series – Medium series | Aluminium, Steel, Titanium, Magnesium, Brass, Copper, Plastic |
| 5-axis millingMachining | – | 1200 mm × 900 mm × 500 mm | – | – | Aluminium, Steel, Titanium, Magnesium, Brass, Copper, Plastic |
| 3-axis millingMachining | – | 635 mm × 510 mm × 460 mm | – | – | Aluminium, Steel, Titanium, Magnesium, Brass, Copper, Plastic |
| CNC turningMachining | – | – | – | – | Aluminium, Steel, Titanium, Magnesium, Brass, Copper, Plastic |
| Welding TIG & MAGJoining | – | – | – | – | – |
| Vibratory finishingSurface | – | – | – | – | – |
| SandblastingSurface | – | – | – | – | – |
| Parts washingSurface | – | – | – | – | – |
| Rapid Prototyping (3D printing ABS)Additive | – | – | – | – | ABS plastic |
| CNC measurement (gantry coordinate measuring machine)Testing | – | 1000 mm × 500 mm × 500 mm | – | – | – |
| Engineering / Design & PrototypingEngineering | – | – | – | – | – |
13 Anlagen & Maschinen
| Machine | Manufacturer / model | Quantity | Working area | Year built | Site |
|---|---|---|---|---|---|
| 5-axis milling centre | Hermle / DMG | 3 | 600 x 450 x 450 mm | – | Straubing |
| 5-axis milling centre | Hermle / DMG | 1 | 850 x 700 x 500 mm | – | Straubing |
| 5-axis milling centre | Hermle / DMG | 1 | 1200 x 900 x 500 mm | – | Straubing |
| 3-axis milling centre | Hermle / DMG | 2 | 635 x 510 x 460 mm | – | Straubing |
| CNC lathe with short bar feeder | DMG | 1 | 140 mm chuck, 12 driven tools | – | Straubing |
| Gantry coordinate measuring machine | – | 1 | 500 x 1000 x 500 mm | – | Straubing |
| 3D ABS printer | – | 1 | – | – | Straubing |
| Welding station (TIG & MAG) | – | 1 | – | – | Straubing |
| Lathe | – | 1 | – | – | Straubing |
| Band saw | – | 2 | – | – | Straubing |
| Vibratory finishing machine | – | 2 | – | – | Straubing |
| Sandblasting cabinet | – | 1 | – | – | Straubing |
| Parts washing machine | – | 1 | – | – | Straubing |
Additional services
Reference customers
Quality
Production is inspected by CNC measurement on a gantry coordinate measuring machine with a measuring range of 500 x 1000 x 500 mm. Production is carried out with a strong focus on quality for industrial partners from the automotive and special machinery sectors.
| Evidence | Straubing |
|---|---|
| CNC measuring room (gantry coordinate measuring machine) |
History
- 1990
The first milling machine in operation already had 4 machining axes.
- 2000
Changeover to 5-axis machining.