Aluminium surface finishing in the Märkisch district
Your specialist for contract anodising - quality for over 35 years
We have stood for high-quality anodised coatings since 1989 and offer our customers tailor-made solutions in aluminium finishing. From prototypes to large-scale production - we combine many years of experience with state-of-the-art technology.
Our surfaces:
- Anodising (black, natural, blue, custom colours)
- Hard anodising
- Chromating
- Degreasing
- Pickling
We also offer other services such as laser engraving, machining of aluminium components, assembly/prefabrication and final packaging.
Anodising at the highest level
With our newly installed, fully automated anodising line in Halver and a well-coordinated team, we guarantee quality, efficiency and reliability - for all industries
Your advantages at a glance
✔ Improved heat radiation (e.g. through black anodised layers)
✔ Increased surface hardness and corrosion protection
✔ Electrical insulation
✔ Attractive, individually selectable colour scheme
✔ Machining and surface coating from a single source
Why anodising? ↓
Anodising - also known as anodising - is a proven electrochemical process for refining aluminium. This process transforms the surface into a hard, porous oxide layer that not only provides effective protection against corrosion and environmental influences, but also gives the material a high-quality, decorative appearance. The layer thickness varies between 5 and 30 µm depending on the requirements.
How anodising works ↓
During anodising treatment, a stable oxide layer is created through the targeted use of electricity, water and sulphuric acid (H₂SO₄):
- Offers corrosion protection
- Has an electrically insulating effect
- Guarantees high hardness and durability
- Can be visually customised
Two thirds of the anodised layer consists of an embedded structure in the material and one third of an outer protective layer - for optimum hold and resistance.
Hard anodising - maximum hardness, optimum protection, thicker layers ↓
Hard anodising, also known as hard anodising, is a special anodising process for creating particularly thick and hard oxide layers on aluminium. This surface finish changes the friction properties and makes the aluminium extremely resistant to mechanical stress, corrosion, wear and chemical influences - ideal for industrial applications with the highest requirements.
In contrast to classic anodising, where layer thicknesses of between 5-25 µm are common, hard anodising achieves layer thicknesses of 25 to over 100 µm - depending on the alloy and process control.
The hard anodised layer is produced using an electrochemical process in a cold, acidic electrolyte bath. Under high voltage and controlled conditions, a very hard, dense oxide layer grows directly out of the aluminium - it is firmly bonded to the base material and cannot flake off.
Properties of hard anodised aluminium surfaces
- Very high hardness (up to 500-600 HV, depending on alloy and coating thickness)
- Excellent wear protection
- Extremely high corrosion resistance - even with aggressive media
- Electrically insulating
- Good sliding properties
- Heat-resistant up to approx. 400 °C
Colour customisable
The anodised layer can be individually coloured using special colour pigments.
Regionally strong - technically precise
Our anodising plant is equipped with a fully automated PLC control system. Every step - from chemical pre-treatment to colouring - is carefully monitored. This enables us to guarantee consistently high quality and maximum process reliability.
Details of the anodising plant ↓
Through constant process testing, our anodising plant and associated technology has been continuously renewed and optimised in recent years. This included, for example
- Extension of the PLC control system,
- Automation of the crane system,
- Renewal of the waste water system, heating and cooling technology
Give your aluminium products protection, function and design. Request advice or a customised quote now!
Your personal contact
Jan Holve
Anodising plant manager
📞 Tel.: +49 2353 / 915 392
Do you have questions or a specific project? We look forward to receiving your enquiry - and to working with you to design the perfect surface.
Technology with responsibility
We attach great importance to occupational safety, environmental protection and sustainable processes. Our production is designed for efficiency, cleanliness and resource conservation - for long-lasting finishing that you can rely on.
Alutronic - your partner for anodising in the Märkischer Kreis.
Reliable. Precise. Personalised.
