
Galvanic surface finishing: Zinc plating, nickel plating, pickling, stainless steel black oxide, and ultrasonic cleaning in Hünenberg.

Zenhäusern Galvanik AG
6331 Hünenberg (CH)New on Amplifa
About Zenhäusern Galvanik AG
Zenhäusern Galvanik AG is a third-generation Swiss family business based in Hünenberg, specializing in galvanic surface finishing for over 60 years. Our range of services includes galvanic zinc plating (blue, yellow, or black passivated, thick layer passivation), nickel plating in high and semi-gloss, hot black oxide treatment of steel, stainless steel black oxide, and ultrasonic cleaning. Additionally, we offer numerous post-treatment processes, including degreasing, slide film coating (Gleitmo 605/615/625), impregnation, aging, oiling, dry lubrication, and brass brightening. We process base materials such as iron/steel, brass, copper, and stainless steel (V2A, V4A, 1.4301). Since 1990, the processes have run on computer-controlled machines; hand galvanizing also enables single-unit and special tasks. Key customers include the automotive industry and the fasteners industry. Our location at Alter Hubelweg 1 in Hünenberg (Canton of Zug) offers efficient logistics, express orders, packing services, and layer thickness measurement with measurement protocols.
- Site
- Hünenberg
- Processes
- Zinc Plating (Blue passivated, Yellow passivated, Black chromated, Thick layer passivated), Nickel Plating (High Gloss, Semi-Gloss), Steel Pickling / Hot Black Oxide, Stainless steel Black Oxide (Black oxide treatment of chrome steel), Ultrasonic Cleaning (Cleanliness Level 1), Thermal Post-treatment: De-embrittling / Tempering, Degreasing, Slide Film Coating
- Materials
- Iron, Brass, Copper, Stainless Steel, Iron / Steel, Stainless Steel (Inox), Zinc Plating (blue/yellow/black passivated, thick layer passivation), Nickel Plating (High Gloss/Semi-Gloss)
- Certificates
- In-house Quality System, In-house Process Bath Laboratory (photometric analysis), Layer Thickness Measurement (X-ray fluorescence, XDL 230), ISO 9001
- Founded
- 1961
- Industries
- Surface Technology, Automotive Industry, Fasteners/Assembly Technology
- 01
Goods Receipt
- 02
Pre-treatment (Degreasing, Pickling)
- 03
Galvanic Plating
- 04
Passivation / Chromating
- 05
Thermal Post-treatment / De-embrittling
- 06
Post-treatment (Coating, Oiling, Impregnating)
- 07
Layer Thickness Measurement / Quality Assurance
- 08
Packing / Shipping
Materials & Processes
Iron / Steel
Zinc plating, nickel plating, and pickling for corrosion protection, e.g., on fasteners.
Brass
Zinc plating, nickel plating, and brightening of decorative and functional brass parts.
Copper
Zinc plating and nickel plating of copper components.
Stainless Steel (Inox)
Black oxide treatment of chrome steel as well as ultrasonic cleaning to cleanliness level 1.
Zinc Plating (blue/yellow/black passivated, thick layer passivation)
Galvanic corrosion protection for steel parts with various passivation options.
Nickel Plating (High Gloss/Semi-Gloss)
Decorative and functional nickel layers on steel, brass, and copper.
Heat Treatment (De-embrittling/Tempering)
Thermal post-treatment in the de-embrittling furnace to prevent hydrogen embrittlement.
Slide Film Coating / Dry Film (Gleitmo 605/615/625)
Mass coating for friction and wear reduction, optional with UV marker.
Sites
Hünenberg
CHProduction and Administration
- Materials
- Iron/Steel, Brass, Copper, Stainless Steel
- Computer-controlled Galvanizing Machines
- FISCHERSCOPE® X-RAY XDL 230 (X-ray fluorescence layer thickness measurement)
- De-embrittling furnace
- Exhaust gas cleaning and wastewater treatment systems
- Hand galvanizing
Finished Components



Inside the production





Industries
Processes & technical limits
| Processes | Tolerance | Max. part | Weight | Lot size | Materials |
|---|---|---|---|---|---|
| Zinc Plating (Blue passivated, Yellow passivated, Black chromated, Thick layer passivated)Surface | – | – | – | – | Iron (Fe), Brass (CuZn), Copper (Cu) |
| Nickel Plating (High Gloss, Semi-Gloss)Surface | – | – | – | – | Iron (Fe), Brass (CuZn), Copper (Cu) |
| Steel Pickling / Hot Black OxideSurface | – | – | – | – | Steel |
| Stainless steel Black Oxide (Black oxide treatment of chrome steel)Surface | – | – | – | – | Stainless Steel (Inox, V2A, V4A, 1.4301) |
| Ultrasonic Cleaning (Cleanliness Level 1)Surface | – | – | – | – | Stainless steel |
| Thermal Post-treatment: De-embrittling / TemperingHeat Treatment | – | – | – | – | – |
| DegreasingSurface | – | – | – | – | Steel, Stainless steel, Non-ferrous metals |
| Slide Film CoatingSurface | – | – | – | – | Steel, Stainless steel, Non-ferrous metals |
| OilingSurface | – | – | – | – | Steel, Stainless steel |
| ImpregnatingSurface | – | – | – | – | Steel, Stainless steel |
| Dry LubricationSurface | – | – | – | – | Steel, Stainless steel, Non-ferrous metals |
| Dry Slide Film Mass Coating (Gleitmo 605 / 615 / 625, optionally with UV marker)Surface | – | – | – | – | Steel, Stainless steel |
| AgingSurface | – | – | – | – | Steel, Stainless steel |
| Brass BrighteningSurface | – | – | – | – | Brass |
| Hand Galvanizing (Zinc plating, Nickel plating, Steel pickling, Stainless steel black oxide)Surface | – | – | – | – | Steel, Stainless steel |
| Packing Services (counting, packing, bag welding, sorting)Assembly | – | – | – | – | – |
| Layer Thickness Measurement with Measurement Protocol (Zinc, Nickel, etc.)Inspection | – | – | – | – | – |
4 Anlagen & Maschinen
| Machine | Manufacturer / model | Quantity | Working area | Year built | Site |
|---|---|---|---|---|---|
| X-ray fluorescence layer thickness measurement system | Fischer FISCHERSCOPE® X-RAY XDL 230 | – | – | – | Hünenberg |
| Computer-controlled galvanizing machines | – | – | – | – | Hünenberg |
| De-embrittling furnace | – | – | – | – | Hünenberg |
| Exhaust gas cleaning and wastewater treatment systems | – | – | – | – | Hünenberg |
Additional services
Quality
All layer thicknesses are measured non-destructively with the FISCHERSCOPE® X-RAY XDL 230 radiography system, batch or sample by sample; measurement protocols are available upon request. A proprietary in-house laboratory monitors all process baths in tight cycles using photometric analysis; an operation-specific quality system, with its own accountability for quality and environment, ensures process conformity.
| Evidence | Hünenberg |
|---|---|
| In-house Quality System | |
| In-house Process Bath Laboratory (photometric analysis) | |
| Layer Thickness Measurement (X-ray fluorescence, XDL 230) | |
| ISO 9001 |
History
- 1961
Company founded on October 10, 1961, by Alfons Zenhäusern and Karl Nussbaumer
- 1969
Move to the current production facility in Hünenberg
- 1990
Switch to computer-controlled automated processes