Toolmaking, precision stamped parts and wire EDM from the Black Forest — no minimum order quantity.
Rudi Rau Feinmechanik
Höfen an der EnzNew on Amplifa
Precision mechanics from the Black Forest since 1999
Rudi Rau Feinmechanik is a family business founded in 1999 in Höfen an der Enz in the Black Forest. The sole proprietorship manufactures precision stamped parts and formed parts with material thicknesses from 0.05 to 2.00 mm in steel, all stainless steels and non-ferrous metals — with no minimum order quantity, from single pieces to large-scale series. The entire value chain is in-house: feasibility analysis and tool design with SolidWorks, toolmaking with progressive, bending, embossing and special tools (also with self-contained drives), and wire EDM on an AGIE machine with wire diameters from 0.1 mm and surface finishes down to Ra 0.1 μm. Products include customer-specific electrical contacts made of CuSn6 with electroplated tin coating as well as metal watch hands, whose reference project makes the company one of the few German manufacturers in this niche. Customers come from the automotive and automotive supply industries, medical, watchmaking and sensor technology, electronics and mechanical engineering; automotive parts are entered in IMDS.
- Site
- Höfen an der Enz
- Processes
- Contract stamping of stamped parts, Punched holes Ø 0.80 mm at t = 0.50 mm (1.4404), Toolmaking (stamping, progressive and special tools), Progressive die tools (also with torsion stations), Complete-cut tools, Bending and embossing tools, Special tools with own drive and feed (incl. pneumatic drive), Tool design (SolidWorks) with feasibility analysis
- Materials
- CuSn6 (bronze, with electroplated tin plating), Stainless steel V4A, Steel, Stainless steels (all), Non-ferrous metals, Brass, Aluminium, Stainless steels
- Certificates
- DIN EN ISO 9001:2015, ISO 9001
- Founded
- 1999
- Industries
- Automotive industry, Automotive suppliers, Medical technology, Watchmaking industry, Sensor technology, Electronics
- 01
Feasibility analysis
- 02
Design (SolidWorks)
- 03
Toolmaking (progressive, bending and embossing tools)
- 04
Wire EDM of active elements (AGIE)
- 05
Stamping, bending, embossing
- 06
Surface treatment (tin plating, painting)
- 07
First article inspection and series release
Materials and Processes
Stainless steel V4A
High-strength stainless steel in which punched holes Ø 0.80 mm at t = 0.50 mm are produced in series.
Stainless steels
All stainless steel grades are processed in thicknesses from 0.05 to 2.00 mm.
Steel
Base material for stamped parts, formed parts and tools; can also be EDM-machined in the hardened state.
CuSn6 (bronze, tin-plated)
Base material for electrical contacts with electroplated tin coating; combines conductivity, spring hardness and corrosion resistance.
Brass
Material for metal watch hands and other non-ferrous stamped parts.
Aluminium
Used in watch hand production depending on requirements and application.
Non-ferrous metals
Material group for contract stamping in thicknesses from 0.05 to 2.00 mm.
Wire EDM
Wire electrical discharge cutting on an AGIE machine with wire from 0.1 mm and Ra 0.1 μm, also in hardened steel.
Design with SolidWorks
Tool design with the latest SolidWorks version, including feasibility analysis before every project.
Site Höfen an der Enz
Höfen an der Enz
DEManufacturing site with design, toolmaking, production and administration
- Part weight / size
- Stamped parts 0.05–2.00 mm material thickness; smallest
- Lot size
- From single pieces with no minimum order quantity to large-scale series
- Materials
- Steel, stainless steel (incl. 1.4404), non-ferrous metals, CuSn6, brass, aluminium
- AGIE wire EDM machine
- CAD/CAM system PEPS
- SolidWorks design
Components and Tools
Inside the production
Industries
Processes & technical limits
| Processes | Tolerance | Max. part | Weight | Lot size | Materials |
|---|---|---|---|---|---|
| Contract stamping of stamped partsForming | 0.01 mm | – | Material thickness 0.05–2.00 mm | Single piece / smallest quantities – Large-scale series | Steel, Stainless steel, Non-ferrous metals |
| Punched holes Ø 0.80 mm at t = 0.50 mm (1.4404)Forming | 0.01 mm | – | 0.02 g (smallest series part) | Smallest quantities – Large-scale series | Stainless steel 1.4404 (V4A) |
| Toolmaking (stamping, progressive and special tools)Engineering | – | – | – | Single-piece production – Small series | Steel, Stainless steel |
| Progressive die tools (also with torsion stations)Engineering | – | – | – | – | – |
| Complete-cut toolsEngineering | – | – | – | – | – |
| Bending and embossing toolsEngineering | – | – | – | – | – |
| Special tools with own drive and feed (incl. pneumatic drive)Engineering | – | – | – | – | – |
| Tool design (SolidWorks) with feasibility analysisEngineering | – | – | – | – | – |
| Electrical contacts (stamping, bending, embossing, offsetting) made of CuSn6Forming | – | – | – | Small series / no minimum order quantity – Large-scale series | CuSn6 |
| Electroplated tin plating of contactsSurface | – | – | – | – | CuSn6 |
| Wire EDM as contract manufacturingMachining | Ra 0.1 μm | – | – | Single part | Steel (hardened), Stainless steel |
| Wire EDM with wire diameter from 0.1 mmMachining | Ra 0.1 μm | – | – | – | Steel, Stainless steel |
| Metal watch hands (reference project, series production)Forming | 0.01 mm | – | 0.02 g | Small series – ongoing series | Steel, Stainless steel, Brass, Aluminium |
| Painting or coating of surfaces (watch hands)Surface | – | – | – | – | Steel, Stainless steel, Brass, Aluminium |
| Formed partsForming | – | – | – | – | Steel, Stainless steel, Non-ferrous metals |
| Inspection and documentation to ISO 9001:2015 (first articles, series, traceability)Testing | – | – | – | – | – |
3 Anlagen & Maschinen
| Machine | Manufacturer / model | Quantity | Working area | Year built | Site |
|---|---|---|---|---|---|
| Wire EDM machine | AGIE | 1 | – | – | Höfen an der Enz |
| CAD/CAM system | PEPS | – | – | – | Höfen an der Enz |
| CAD system (design) | SolidWorks latest version | – | – | – | Höfen an der Enz |
Additional services
Reference customers
Quality and Certification
The quality management system has been certified to DIN EN ISO 9001:2015 since 2008 (certificate 301204, ALL-CERT mbH, valid until 09.05.2027). First articles are inspected and documented before series release, and all production steps are traceable back to the batch; automotive parts are entered in IMDS.
| Evidence | Höfen an der Enz |
|---|---|
| ISO 9001 |
Company History
- 1999
Foundation of the family business Rudi Rau Feinmechanik in Höfen an der Enz
- 2008
Establishment of the quality management system, ISO 9001 certified ever since
Reference project metal watch hands: tool design and toolmaking in-house, series production with tolerance 0.01 mm — one of the few German manufacturers of metal watch hands