
Contract coating, precious metal technology and plant engineering for emission-reduced surface technology since 1930

Gramm Technik GmbH
Ditzingen-Heimerdingen · Ilmenau · Illingen · BuchheimNew on Amplifa
About Gramm Technik GmbH
Gramm Technik GmbH is a company specialized in surface technology, headquartered in Ditzingen-Heimerdingen. Its product range includes high-performance chemical and electroplating contract coatings for series parts – primarily aluminium, partially or fully coated – precious metal technology with functional coatings for connection technology in electronics, microelectronics and microsystem technology, as well as electroforming for dental technology. In addition, the company designs and builds electroplating coating systems based on the patented, closed Gramm Selective Technology (GST), an emission-reduced plating system that can be integrated into production flows. Its customer base includes the automotive, household appliance and construction industries; the GST process is also used for H2-ready coatings of heating components. The group operates sites in Ditzingen-Heimerdingen, Ilmenau, Illingen and the Buchheim development centre (Gramm OIB GmbH) as well as the subsidiary Gramm Technika in Poland with plant engineering, welding and machining services. Quality management is certified according to DIN EN ISO 9001:2015.
- Site
- Ditzingen-Heimerdingen
- Processes
- Electroplating contract coating (chemical and electroplating, partial or full-surface), Closed System Technology (GST) – closed modular electroplating, Precious metal technology – functional surface coatings for connection technologies in electronics,, Gramm-Speed-Plater (GSP) – coating process, Electroforming for dental technology, GST process – H2-ready coating for heating components, Welding services, Metal machining
- Materials
- Aluminium, Gold, Hard gold plating, GRP, PP, PE, PVDF, PVC-C
- Certificates
- DIN EN ISO 9001:2015, ISO 9001
- Founded
- 1930
- Industries
- Automotive industry, Household appliance industry, Construction industry, Electronics/microelectronics/microsystem technology, Dental technology, Heating technology (H2-ready)
- 01
Chemical and electroplating contract coating
- 02
Precious metal technology / electroforming
- 03
Design of coating systems
- 04
Special plant engineering (GST)
Materials and Processes
Aluminium
Base material for contract coating of series parts such as busbars and electrical components
Gold
Precious metal for dental prostheses and functional coatings in microelectronics
Hard gold plating
Surface finishing for dental applications
Stainless and acid-resistant steel
Material for machine constructions as well as process and storage tanks
Titanium
Material for process vessels and steel constructions in plant engineering
GRP
Plastic material processed in plant engineering
PP
Plastic for plant components of the electroplating systems
PE
Plastic for vessels and plant components
PVDF
Chemical-resistant plastic for electroplating systems
PVC-C
Plastic for plant components of the coating systems
Locations

Ditzingen-Heimerdingen
DEHead office / contract coating, precious metal technology
- Lot size
- Series parts
- Materials
- Aluminium
- GST coating systems (Closed System Technology)

Ilmenau
DEMetal finishing and plant engineering
- Materials
- Aluminium
Illingen
DESurface coating

Buchheim
DEDevelopment centre (Gramm OIB GmbH, Surface Technology Institute Lake Constance)

Poland (Gramm Technika Sp. z o. o.)
PLPlant engineering, welding and machining services
- Materials
- Aluminium
- Anodising production line
- BSH nano-coating production line
Components




Inside the production







Industries
Processes & technical limits
| Processes | Tolerance | Max. part | Weight | Lot size | Materials |
|---|---|---|---|---|---|
| Electroplating contract coating (chemical and electroplating, partial or full-surface)Surface | – | – | – | Series parts | Aluminium |
| Closed System Technology (GST) – closed modular electroplatingSurface | – | – | – | – | Aluminium |
| Precious metal technology – functional surface coatings for connection technologies in electronics,Surface | – | – | – | – | Precious metals |
| Gramm-Speed-Plater (GSP) – coating processSurface | – | – | – | – | – |
| Electroforming for dental technologySurface | – | – | – | – | Gold |
| GST process – H2-ready coating for heating componentsSurface | – | – | – | – | – |
| Welding servicesJoining | – | – | – | – | Metal |
| Metal machiningMachining | – | – | – | – | Metal |
| Plastic machiningPlastics | – | – | – | – | GRP, PP, PE, PVDF, PVC-C |
| Electrochemical surface finishing and hardeningSurface | – | – | – | – | Aluminium |
| Anodising (production lines)Surface | – | – | – | – | Aluminium, Aluminium profiles |
| BSH nano-coating (production lines)Surface | – | – | – | – | Aluminium |
| Design and manufacture of machine constructions as well as process and storage tanksEngineering | – | – | – | – | Stainless and acid-resistant steel, Titanium |
| Design and construction of electroplating systems (special plant engineering according to GrammEngineering | – | – | – | – | – |
3 Anlagen & Maschinen
| Machine | Manufacturer / model | Quantity | Working area | Year built | Site |
|---|---|---|---|---|---|
| Anodising production line | Gramm Technika | – | – | – | Poland |
| BSH nano-coating production line | Gramm Technika | – | – | – | Poland |
| Coating systems according to GST technology (closed, production-flow-integrable system) | Gramm Technik GST | – | – | – | Ditzingen-Heimerdingen |
Additional services
Quality
The quality management system according to DIN EN ISO 9001:2015 is certified by TÜV Hessen for the Ditzingen, Ilmenau and Illingen sites. The environmental policy of Gramm Edelmetalltechnik is documented as a standalone declaration.
| Evidence | Ditzingen-Heimerdingen | Ilmenau | Illingen |
|---|---|---|---|
| ISO 9001 |
History
- 1930
Foundation of Gebrüder Gramm Metallveredelung in Stuttgart
- 1950
Coating processes for the automotive, household appliance and construction industries
- 1959
Gerhard Gramm takes over company management and the company headquarters is relocated to Ditzingen-Heimerdingen
- 1970
Start of aluminium coating (busbars, electrical components)
- 1980
Introduction of Closed System Technology (GST)
- 1988
Introduction of electroforming technology for dental technology
- 2000
Development of the Gramm-Speed-Plater (GSP)
- 2010
Construction start for the Buchheim development centre
- 2014
Opening of the development centre Gramm OIB GmbH, Surface Technology Institute Lake Constance GmbH
- 2020
Construction start of the second extension for the Buchheim development centre
- 2021
Purchase of factory building in Illingen/Saarland
- 2026
Continuation under the Navigator Group