CNC machining and assembly of fine-mechanical precision parts for aviation and medical technology
Groth Feinwerktechnik GmbH & Co. KG
SchenefeldNew on Amplifa
Reliable. Innovative. Since 1946.
Groth Feinwerktechnik GmbH & Co. KG is a family business founded in 1946, now run by the third generation, with 120 employees in Schenefeld near Hamburg. The company manufactures fine-mechanical components by CNC turning with up to 12 axes (slide and Swiss-type turning principles) as well as CNC milling in simultaneous 3-, 4- and 5-axis operation, including freeform surfaces. In addition, the company offers spur gear toothing (module 0.2–2.0, quality 6), 3D-printed plastic prototypes, laser marking, and series assembly of complex assemblies and electromechanical devices. Machined materials are aluminium, stainless steel, titanium, copper, brass, bronze and plastic, in small to medium lot sizes. Alongside contract manufacturing, the sister company Groth Luftfahrt- und Systemtechnik develops and distributes its own products such as valves and fittings made of stainless steel for the aircraft water system; every Airbus carries up to 50 assemblies from the Groth Group on board. Customers come from aviation and medical technology. The site, occupied in 2012, comprises over 3500 m² of office and production space with vibration-damping floors and energy-saving facilities.
- Site
- Schenefeld
- Processes
- Turning, Turning up to 12 axes (complex turning and milling machining, slide and Swiss-type turning, 5-axis simultaneous milling (freeform surfaces), 5-axis milling, 4-axis milling, 3-axis milling, Assembly manufacturing / series assembly, 3D printing (functional plastic prototypes, delivery time 48 h)
- Materials
- Aluminium, Stainless steel, Titanium, Copper, Brass, Bronze, Plastic
- Certificates
- ISO 9001:2015, EN ISO 13485:2016, ISO 14001:2015, ISO 9001, ISO 13485, ISO 14001, EN 9100
- Founded
- 1946
- Employees
- 120
- Industries
- Aviation, Medical technology
- 01
Design / Assembly design
- 02
CNC turning (up to 12 axes)
- 03
CNC milling (3-/4-/5-axis)
- 04
Gear cutting
- 05
Laser marking / laser engraving
- 06
Component procurement
- 07
Series assembly
- 08
Quality assurance / inspection
- 09
Production-ready delivery
Site
Schenefeld
DEMain site: office, production, assembly
- Lot size
- Small to medium series
- Materials
- Aluminium, stainless steel, titanium, copper, brass, bronze, plastic
- CNC lathes up to 12 axes (slide and Swiss-type turning principles)
- 3-/4-/5-axis CNC milling machines
- Gear-cutting equipment
- 3D printing equipment
- Laser systems for marking
- Assembly and inspection area
Inside the production
Industries
Processes & technical limits
| Processes | Tolerance | Max. part | Weight | Lot size | Materials |
|---|---|---|---|---|---|
| TurningMachining | – | – | – | small lot sizes – medium lot sizes | Aluminium, Stainless steel, Titanium, Copper, Brass, Bronze, Plastic |
| Turning up to 12 axes (complex turning and milling machining, slide and Swiss-type turningMachining | – | – | – | small lot sizes – medium lot sizes | Aluminium, Stainless steel, Titanium, Copper, Brass, Bronze, Plastic |
| 5-axis simultaneous milling (freeform surfaces)Machining | – | – | – | small lot sizes – medium lot sizes | Aluminium, Stainless steel, Titanium, Copper, Brass, Bronze, Plastic |
| 5-axis millingMachining | – | – | – | – | Aluminium, Stainless steel, Titanium, Copper, Brass, Bronze, Plastic |
| 4-axis millingMachining | – | – | – | – | Aluminium, Stainless steel, Titanium, Copper, Brass, Bronze, Plastic |
| 3-axis millingMachining | – | – | – | – | Aluminium, Stainless steel, Titanium, Copper, Brass, Bronze, Plastic |
| Assembly manufacturing / series assemblyAssembly | – | – | – | – | – |
| 3D printing (functional plastic prototypes, delivery time 48 h)Additive | – | – | – | – | Plastic |
| Laser marking (individual marking, annealing marking, laser engraving)Surface | – | – | – | – | – |
| Gear cutting (spur gears to customer requirements, module 0.2 to 2.0, quality 6)Machining | Quality 6 | – | – | – | – |
| Design / assembly designEngineering | – | – | – | – | – |
| Welding (welded fittings)Joining | – | – | – | – | Stainless steel |
Additional services
Reference customers
Quality & Certificates
Quality assurance covers the inspection of individual parts and fully assembled units up to flight-readiness. The management system is certified to ISO 9001:2015, EN ISO 13485:2016 and ISO 14001:2015 by Bureau Veritas.
| Evidence | Schenefeld |
|---|---|
| ISO 9001 | |
| ISO 13485 | |
| ISO 14001 | |
| EN 9100 |
History
- 1946
Company founded by Werner Groth
- 1948
Production of the first ballpoint pens
- 1950
Werner Groth passes his master craftsman examination as a precision mechanic
- 1956
Company relocates to the former site in Halstenbek
- 1960
Extension of hall bay 1
- 1973
Introduction of CNC technology
- 1985
Extension of hall bay 2
- 1994
Construction of the assembly hall, certification to DIN ISO 9001, manufacturing and assembly of assemblies for aviation
- 1998
Delivery of the first assembly for medical technology and founding of Groth Luftfahrt- und Systemtechnik
- 2006
Founding of "Plant 2", production at two sites
- 2011
Start of new construction in Schenefeld near Hamburg
- 2012
All 110 employees move to the current site in Schenefeld
- 2013
Start of design projects in medical technology
- 2015
Medical technology certification to ISO 13485 and environmental certification to ISO 14001
- 2017
3D printing integrated into processes
- 2018
Industry 4.0 project launched in cooperation with a university