Machining of precision parts for fine mechanical engineering by CNC turning and CNC milling, complete in one setup, from single parts to series production.
Stieger Feinwerktechnik GmbH
22926 Ahrensburg, GermanyNew on Amplifa
About Stieger Feinwerktechnik
Stieger Feinwerktechnik GmbH is a family business founded in 1961 in Ahrensburg and, as a contract manufacturer, produces precision parts for fine mechanical engineering by CNC turning and CNC milling – from single parts to series production. Its core competence is the complete machining of demanding workpieces in one setup, supplemented by conventional machining, surface and cylindrical grinding, and surface treatments such as sandblasting, deburring and ultrasonic cleaning with deionized water. The machine park comprises six CNC lathes (Traub, Mori Seiki, Nakamura) with up to 13 axes, sub-spindles and 120 bar high-pressure cooling, as well as two CNC milling machines (Mori Seiki) with a 4th axis. Customers include the aerospace industry, medical technology and implant manufacturing, food technology, toolmaking, clip and valve technology, and motorsport. The company manufactures just-in-time according to DIN EN ISO 9001:2015 and provides in-house training. Its site is the workshop premises at Ewige Weide 11 in the Nord industrial area of Ahrensburg (Schleswig-Holstein).
- Site
- Ahrensburg
- Processes
- CNC turning, CNC milling, Complete turning and milling in one setup, Conventional turning (VDF, Weiler mechanic's lathe), Conventional milling (Deckel FP), Surface grinding, Cylindrical grinding, Sandblasting
- Materials
- CNC turning, CNC milling, Conventional machining, Surface and cylindrical grinding, Sandblasting, Ultrasonic cleaning, Machining in one setup
- Certificates
- DIN EN ISO 9001:2015, ISO 9001
- Founded
- 1961
- Industries
- Aerospace technology, Medical technology, Implants, Food technology, Toolmaking, Clip technology
- 01
CNC turning
- 02
CNC milling
- 03
Conventional turning and milling
- 04
Surface and cylindrical grinding
- 05
Sandblasting
- 06
Deburring
- 07
Ultrasonic cleaning with deionized water
- 08
Quality assurance
- 09
Shipping (just-in-time)
Processes and Machining
CNC turning
Six CNC lathes with Y-axes, sub-spindles, bar loader magazine and up to 13 axes for spindle bore up to Ø 42 mm and chuck machining up to Ø 200 mm.
CNC milling
Two CNC milling machines with rotary table Ø 200 as 4th axis, measuring probe and 60 bar internal coolant supply (X 600, Y 400).
Conventional machining
Conventional turning (VDF, Weiler) and milling (Deckel FP) for single parts and special tasks.
Surface and cylindrical grinding
Surface and cylindrical grinding machines for fine machining.
Sandblasting
Surface treatment in a 2-cabinet sandblasting system.
Ultrasonic cleaning
Cleaning of all workpieces in an ultrasonic bath with deionized water rinse before shipping.
Machining in one setup
Turning, milling and machining of demanding workpieces completely in one setup.
Site
Ahrensburg
DEAdministration, Production
- Lot size
- Single part to series
- 6 CNC lathes Traub, Mori Seiki, Nakamura (up to 13 axes, sub-spindles, 120 bar)
- 2 CNC milling machines Mori Seiki (rotary table Ø 200, X 600, Y 400)
- VDF lathe
- 2 Weiler mechanic's lathes
- 3 Deckel FP milling machines
- Surface grinding machine
- Cylindrical grinding machine
- 2-cabinet sandblasting system
Components
Inside the production
Industries
Processes & technical limits
| Processes | Tolerance | Max. part | Weight | Lot size | Materials |
|---|---|---|---|---|---|
| CNC turningMachining | – | Ø 200 (chuck machining) | – | Single part – Series | – |
| CNC millingMachining | – | X 600 × Y 400 | – | Single part – Series | – |
| Complete turning and milling in one setupMachining | – | – | – | – | – |
| Conventional turning (VDF, Weiler mechanic's lathe)Machining | – | – | – | – | – |
| Conventional milling (Deckel FP)Machining | – | – | – | – | – |
| Surface grindingMachining | – | – | – | – | – |
| Cylindrical grindingMachining | – | – | – | – | – |
| SandblastingSurface | – | – | – | – | – |
| Surface treatments (various)Surface | – | – | – | – | – |
| Deburring (inspection with magnifying glass/microscope)Surface | – | – | – | – | – |
| Ultrasonic bath cleaning with deionized water rinseSurface | – | – | – | – | – |
| ToolmakingEngineering | – | – | – | – | – |
| Production-accompanying quality assurance (measuring stations, production inspections)Inspection | – | – | – | – | – |
10 Anlagen & Maschinen
| Machine | Manufacturer / model | Quantity | Working area | Year built | Site |
|---|---|---|---|---|---|
| CNC lathe (Y-axes, sub-spindles, tailstock, bar loader magazine, 120 bar high-pressure pump, up to | Traub | 6 | – | – | Ahrensburg |
| CNC lathe | Mori Seiki | – | – | – | Ahrensburg |
| CNC lathe | Nakamura | – | – | – | Ahrensburg |
| CNC milling machine (rotary table Ø 200 as 4th axis, measuring probe, internal coolant supply 60 | Mori Seiki | 2 | X 600; Y 400 | – | Ahrensburg |
| Conventional lathe | VDF | 1 | – | – | Ahrensburg |
| Mechanic's lathe | Weiler | 2 | – | – | Ahrensburg |
| Milling machine | Deckel FP | 3 | – | – | Ahrensburg |
| Surface grinding machine | – | 1 | – | – | Ahrensburg |
| Cylindrical grinding machine | – | 1 | – | – | Ahrensburg |
| Sandblasting system (2 cabinets) | – | 1 | – | – | Ahrensburg |
Additional services
Quality
Production-accompanying quality assurance is carried out at several measuring stations according to customers' QA and certification requirements; series production only begins after release by a QA employee. Deburring is inspected with a magnifying glass or microscope, and all workpieces are cleaned in an ultrasonic bath and rinsed with deionized water before shipping.
| Evidence | Ahrensburg |
|---|---|
| ISO 9001 |
History
- 1961
Founding of the company "Dieter Stieger & Fred Klitzing, turning shop and toolmaking" in Ahrensburg
- 1976
Purchase of a 2,000 m² property at Ewige Weide 11, new construction of office and production space
- 1979
Fred Klitzing retires; Dieter Stieger takes over his shares
- 1981
Renaming to "Stieger GmbH, Werkzeug- u. Maschinenbau" (tool and machine engineering)
- 1983
Henning Stieger joins the company, precision mechanic
- 1986
Apprentice Ulrich Z. becomes state champion in toolmaking, 3rd place in the national competition
- 1989
Rolf Stieger joins the company, toolmaker
- 1990
Expansion of the production hall by 200 m²
- 1997
Company handed over to Henning and Rolf Stieger
- 2005
Renaming to "Stieger Feinwerktechnik GmbH"
- 2010
Certification according to DIN EN ISO 9001:2008
- 2011
50th company anniversary