
Development, engineering and manufacture of highly complex precision parts – including under cleanroom conditions.

GEWO Feinmechanik GmbH & Co. KG
Plant 1 Bahnhofstraße 23, 85457 Wörth/Hörlkofen · Plant 2/Headquarters Bahnhofstraße 45, 85457 Wörth/HörlkofenNew on Amplifa
About us
GEWO Feinmechanik is a family-owned high-tech company based in Wörth/Hörlkofen east of Munich, specializing in the development, engineering and manufacture of highly complex precision components and assemblies – including under cleanroom conditions. Using a high-tech machine park, the company produces machined parts in the micrometer range, including components that play a key role in the production of microchips. Its range of services includes consulting, project development, machining (turning/milling), High Purity Cleaning, cleaning processes in ISO class 5/6/7, assembly, cleanroom assembly as well as medical and laboratory technology. Customers come from the semiconductor industry, medical technology, aerospace, automotive and research; the high-end components are shipped all over the world. The Hörlkofen site covers more than 30,000 square meters of production and office space, complemented after the expansion completed in 2025 by a new company headquarters, logistics center and production hall with cleanrooms. Quality management is certified to ISO 9001:2015; qualification to DIN EN 9100 is in preparation.
- Site
- Wörth/Hörlkofen
- Processes
- Machining (turning/milling), High Purity Cleaning / cleaning processes (ISO class 5/6/7), Assembly, Cleanroom assembly (cleanroom conditions), Medical & laboratory technology (laboratory devices), Project development / Consulting / Development and engineering, Residual gas analysis in ultrahigh vacuum with mass spectrometer, Fine cleaning and particle analysis in the ISO5 cleanroom (DIN EN ISO 14644)
- Materials
- Machining (turning/milling), High Purity Cleaning, Cleanroom assembly, Medical & laboratory technology, Residual gas analysis in ultrahigh vacuum
- Certificates
- ISO 9001:2015, EN 9100
- Founded
- 1981
- Employees
- 501–1000 (JSON-LD);
- Industries
- Semiconductors, Medical technology, Aerospace, Automotive, Research
- 01
Consulting
- 02
Project development / Engineering
- 03
Machining (turning/milling)
- 04
High Purity Cleaning / Cleaning processes ISO class 5/6/7
- 05
Metrology / Inspection
- 06
(Cleanroom) assembly
- 07
Shipping / Logistics
Processes & Manufacturing Focus
Machining (turning/milling)
Precision manufacture of highly complex workpieces in the micrometer range.
High Purity Cleaning
Cleaning processes under cleanroom conditions in ISO class 5/6/7 down to the nanometer range.
Cleanroom assembly
Assembly of components and assemblies under cleanroom conditions.
Medical & laboratory technology
Development and manufacture of laboratory devices.
Residual gas analysis in ultrahigh vacuum
Measurement with a mass spectrometer in the ISO5 cleanroom, among other things for the semiconductor industry.
Sites

Plant 1 – Wörth/Hörlkofen
DEProduction

Plant 2 / Headquarters – Wörth/Hörlkofen
DEProduction, administration, cleanrooms, logistics center
- over 40 coordinate-controlled measuring machines
- ISO5 cleanroom (DIN EN ISO 14644)
- mass spectrometer
- fully automated small-parts warehouse for 15,000 containers
- automated guided vehicle system
- energy center with combined heat and power plant
Components & Services





Inside the production






Industries
Processes & technical limits
| Processes | Tolerance | Max. part | Weight | Lot size | Materials |
|---|---|---|---|---|---|
| Machining (turning/milling)Machining | – | – | – | – | – |
| High Purity Cleaning / cleaning processes (ISO class 5/6/7)Surface | – | – | – | – | – |
| AssemblyAssembly | – | – | – | – | – |
| Cleanroom assembly (cleanroom conditions)Assembly | – | – | – | – | – |
| Medical & laboratory technology (laboratory devices)Assembly | – | – | – | – | – |
| Project development / Consulting / Development and engineeringEngineering | – | – | – | – | – |
| Residual gas analysis in ultrahigh vacuum with mass spectrometerInspection | – | – | – | – | – |
| Fine cleaning and particle analysis in the ISO5 cleanroom (DIN EN ISO 14644)Inspection | – | – | – | – | – |
1 Anlagen & Maschinen
| Machine | Manufacturer / model | Quantity | Working area | Year built | Site |
|---|---|---|---|---|---|
| Coordinate measuring machine | – | 40+ | – | – | Wörth/Hörlkofen |
Additional services
Quality
Quality management is certified to ISO 9001:2015; qualification to DIN EN 9100 is in preparation. Over 40 coordinate-controlled measuring machines (with 100% inspection if required) as well as an ISO5-classified cleanroom (DIN EN ISO 14644) with residual gas analysis in ultrahigh vacuum ensure quality in the ultra-precision range; defined incoming, intermediate and final inspections are carried out individually tailored to customer requirements.
| Evidence | Wörth/Hörlkofen |
|---|---|
| ISO 9001:2015 | |
| EN 9100 |
History
- 1981
Founded by Georg and Marianne Woitzik in a garage in Pretzen near Erding
- 1986
Relocation to Hörlkofen, new building with approx. 1,100 sqm of usable floor space, 12 employees
- 1994
Son Stefan Woitzik joins; acquisition of H. Hölzel GmbH and establishment of the laboratory technology division
- 2000
Second son Andreas Woitzik joins
- 2002
Initial certification by TÜV to DIN ISO 9001:2000
- 2007
Purchase of an approx. 26,000 m² plot for the construction of Plant 2
- 2008
New construction of Hall 5 including a new cleanroom
- 2010
Acquisition of Richard Staab GmbH
- 2011
Stefan Woitzik becomes managing director; merger of the three companies
- 2013
Opening of Plant 2 including relocation of shipping, assembly, engineering and cleanroom; 250 employees
- 2014
Andreas Woitzik becomes managing director
- 2019
Purchase of a 69,000 m² expansion site to secure the location
- 2020
Generational change: handover to the sons Stefan and Andreas Woitzik
- 2022
Groundbreaking ceremony for the 2nd site expansion
- 2023
Introduction of a new corporate identity including a new logo
- 2025
Opening of the logistics center (Sept.) and the new company headquarters, production hall with cleanrooms (Oct.)