
Precision micromechanical parts and assemblies – from prototype and small batches to high-volume production in machining and gearing.

Kurt Grützmann Feinmechanik GmbH
Weddernkamp 6, 23858 Reinfeld (Holstein) · GermanyNew on Amplifa
System supplier for precision micromechanical parts
Kurt Grützmann Feinmechanik GmbH (FMG) is a family-owned company in Reinfeld (Holstein) and has been a partner for durable, high-quality and sustainable micromechanical products for more than 60 years. The company manufactures precision micromechanical parts and complex system solutions along the entire value chain: from design support and feasibility analysis through CNC turning, CNC milling, EDM and gearing to deburring, ultrasonic cleaning and ready-to-install assembly. With the FMG 100PLUS service package, automated and digitized small batches with high variant diversity are produced, while FMG 1000PLUS covers high-volume production from 1,000 units for recurring demand. Production-accompanying quality assurance including X-ray fluorescence analysis (XRF), material certificates and seamless traceability is certified to DIN ISO 9001:2015. As a system supplier, technical documentation and logistics concepts complete the offering.
- Site
- Reinfeld
- Processes
- Turning (CNC), Milling (CNC), EDM, Gearing, Deburring, Ultrasonic cleaning, Assembly, Design support (Design-to-Cost, feasibility analyses)
- Materials
- Turning (CNC), Milling (CNC), EDM, Gearing technology, Deburring, Ultrasonic cleaning, Assembly
- Certificates
- DIN ISO 9001:2015, ISO 9001
- Industries
- Micromechanics, Precision engineering, Machining, Gearing
- 01
Design support / Design-to-Cost
- 02
Feasibility analysis
- 03
CNC turning
- 04
CNC milling
- 05
EDM
- 06
Gearing
- 07
Deburring
- 08
Ultrasonic cleaning
- 09
Quality assurance incl. XRF
- 10
Assembly
- 11
Technical documentation
- 12
Logistics concepts
Manufacturing processes and system solutions
Turning (CNC)
Manufacture of micromechanical rotational parts from prototypes to series production.
Milling (CNC)
Precision machining of complex contours for precision engineering and gearing.
EDM
Spark and wire EDM for hard-to-machine geometries and tight tolerances.
Gearing technology
Manufacture of geared components for small and high-volume production.
Deburring
Clean edge-breaking and deburring process as a complement to machining.
Ultrasonic cleaning
Residue-free part cleaning before assembly and packaging.
Assembly
Ready-to-install assembly of complex assemblies from 1,000 units (FMG 1000PLUS MONTAGE).
Location

Reinfeld
DEHeadquarters / Manufacturing
- Lot size
- Small batches and high-volume production from 1,000 units
- Materials
- Metals for micromechanics and machining
- CNC lathes
- CNC milling machines
- EDM machines
- X-ray fluorescence measuring device (XRF)
- Ultrasonic cleaning system
Components and service packages





Inside the production




Industries
Processes & technical limits
| Processes | Tolerance | Max. part | Weight | Lot size | Materials |
|---|---|---|---|---|---|
| Turning (CNC)Machining | – | – | – | – | – |
| Milling (CNC)Machining | – | – | – | – | – |
| EDMMachining | – | – | – | – | – |
| GearingMachining | – | – | – | – | – |
| DeburringSurface | – | – | – | – | – |
| Ultrasonic cleaningSurface | – | – | – | – | – |
| AssemblyAssembly | – | – | – | – | – |
| Design support (Design-to-Cost, feasibility analyses)Engineering | – | – | – | – | – |
| Technical documentationEngineering | – | – | – | – | – |
| Logistics conceptsAssembly | – | – | – | – | – |
| Quality assurance / metrology incl. X-ray fluorescence measuring device (XRF)Testing | – | – | – | – | – |
| Small-batch production (FMG 100PLUS, automated small batches)Machining | – | – | – | Small batches / low volumes | – |
| High-volume production from 1,000 units (FMG 1000PLUS)Machining | – | – | – | 1,000 units | – |
Additional services
Quality processes
All production-accompanying measuring and testing procedures are certified to DIN ISO 9001:2015. This includes seamless traceability of components and materials, material certificates as well as an X-ray fluorescence measuring device (XRF) for fast, precise analysis of chemical composition.
| Evidence | Reinfeld |
|---|---|
| ISO 9001 |
Tradition meets innovation
For more than 60 years a partner for durable, high-quality, sustainable and innovative products in micromechanics
- heute
Family-owned company and training company with FMG service packages for small batches (FMG 100PLUS) and high-volume production from 1,000 units (FMG 1000PLUS)