
Contract coater for electroless nickel plating, electroplating and special coatings on special alloys, parts up to 800 kg

Dittes Oberflächentechnik GmbH
KelternNew on Amplifa
About Dittes Oberflächentechnik
Dittes Oberflächentechnik GmbH, based in Keltern (IKG Dammfeld), is a contract coater for electroplated and chemical surface treatment of metals. The company specializes in electroless nickel plating in low-, medium- and high-phosphorus variants (3–5 %, 6–9 %, 10–12 % phosphorus) as well as coatings built on this and the special Dispersal Polymer Coating (DPB) surface. Further processes include electroless nickel PTFE and black, chemical blackening of stainless steels, electrolytic nickel plating, gold plating, silver plating, copper plating, tin plating as well as palladium and rhodium coatings, plus passivation and chromating of aluminium. In addition to steel, non-ferrous metals, aluminium and stainless steel, special alloys such as AlSiC, AlBeMet, CuBe, CuMo, Kovar and titanium are also coated; work is carried out in rack and barrel processes, from small parts the size of a pinhead to components weighing up to 800 kg (electroless nickel). Customers come from aerospace, automotive, mechanical engineering, medical technology, electrical engineering, motorsport and pneumatics, including well-known high-tech companies and universities; coatings are delivered throughout Europe and are also found in space.
- Site
- Keltern
- Processes
- Electroless nickel plating (low-, medium- and high-phosphorus), Electroless Nickel PTFE, Electroless Nickel black, Chemical blackening of stainless steels (stainless steel blackening), Dispersal Polymer Coating (DPB), Electrolytic nickel plating, Electrolytic gold plating, Electrolytic silver plating
- Materials
- Steel, Stainless steel, Aluminium, Non-ferrous metals, AlSiC, AlBeMet, CuBe, CuMo
- Certificates
- DIN EN ISO 9001:2015, ISO 9001
- Founded
- 1999
- Industries
- Aerospace, Automotive, Mechanical engineering, Medical technology, Electrical engineering, Motorsport
- 01
Inquiry (material, coating, layer thickness, quantity, weight)
- 02
Quote and order confirmation
- 03
Pretreatment of the parts
- 04
Rack or barrel processing
- 05
Electroplated or chemical coating
- 06
Visual inspection and layer thickness measurement
- 07
Packaging and Europe-wide delivery
Locations
Keltern
DEHeadquarters and production site (IKG Dammfeld)
- Part weight / size
- up to 800 kg component weight (electroless nickel)
- Materials
- Steel, stainless steel, aluminium, non-ferrous metals, AlSiC, AlBeMet, CuBe, CuMo, Kovar, titanium
- Plating lines for various component sizes
- Rack processing
- Barrel processing
Coated Parts






Inside the production


Industries
Processes & technical limits
| Processes | Tolerance | Max. part | Weight | Lot size | Materials |
|---|---|---|---|---|---|
| Electroless nickel plating (low-, medium- and high-phosphorus)Surface | – | – | 800 kg (electroless nickel) | – | Steel, Non-ferrous metals, Aluminium, AlSiC, AlBeMet, CuBe, CuMo, Kovar, Titanium, Stainless steel |
| Electroless Nickel PTFESurface | – | – | – | – | – |
| Electroless Nickel blackSurface | – | – | – | – | – |
| Chemical blackening of stainless steels (stainless steel blackening)Surface | – | – | – | – | Stainless steel |
| Dispersal Polymer Coating (DPB)Surface | – | – | – | – | – |
| Electrolytic nickel platingSurface | – | – | – | – | – |
| Electrolytic gold platingSurface | – | – | – | – | – |
| Electrolytic silver platingSurface | – | – | – | – | – |
| Electrolytic copper platingSurface | – | – | – | – | – |
| Electrolytic tin plating / tin-copperSurface | – | – | – | – | – |
| Palladium and rhodium coatingSurface | – | – | – | – | – |
| Passivation of aluminium and stainless steel (RoHS-compliant)Surface | – | – | – | – | Aluminium, Stainless steel |
| Chromating of aluminiumSurface | – | – | – | – | Aluminium |
| Rack and barrel processingSurface | – | – | 800 kg | – | – |
Additional services
Reference customers
Quality
Quality assurance includes visual inspection with the naked eye on a sample of 1–10 pieces as well as layer thickness measurement; further QA tasks are performed upon consultation. The company works with quality assurance agreements (QAA) based on the ZVO model and offers non-disclosure agreements (NDA).
| Evidence | Keltern |
|---|---|
| ISO 9001 |
History
- 1999
Foundation of Dittes Oberflächentechnik GmbH
- 2024
25th company anniversary, celebrated on 14.09.2024; the company looks back on over 80 years of tradition and experience
- 2024
ISO 9001:2015 re-certification by TÜV SÜD, valid from 10.01.2024 to 09.01.2027