Surface refinement
Anodizing

Anodizing is the most common method for refining aluminium surfaces. The anodizing not only increases the durability of the profiles, but also allows a wide range of colour and decorative design, which is achieved by the anodizing of aluminium profiles. Our automated systems enable a consistent surface quality and thus a high reproducibility.

 

 

Technical capacity:

  • Dimensions: Piece anodising; Max. 7.500mm
  • Layer thickness: 5-25µm according to EURAS standard
  • Quality certificate: Qualanod, ISO 9001

The pre-treatments are according to DIN 17611 by E0-E6.
This is done in mechanical (E1-E5) and chemical (E0 / E6) pre-treatments,
which considerably distinguishes the final surface.

Pre-treatment

E0

Without pre-treatment, anodized and compacted.
Press marks and surface defects are visible.

E1

Ground, anodized and compressed. Uniform, dull surface. Larger surface defects remain visible.

E2

Brushed, anodized and compressed. Uniform, light surface. Larger surface defects remain visible.

E3

Polished, anodized and compressed.
Glossy surface.

E4

Ground and brushed, anodized and compressed. Uniform light surface.

E5

Ground and polished, anodized and compressed. Smooth, glossy surface.

E6

Chemical pre-treatment, anodized and compressed. Matt, rough surface. Scratches are largely smoothened.

Colour spectrum

C-0

C-0

colourless, natural

C-31

C-31

light bronze
(stainless steel look)

C-32

C-32

light bronze

C-33

C-33

medium bronze

C-34

C-34

dark bronze

C-35

C-35

black

EV2

EV2

nickel silver
(champagne)

EV3

EV3

gold

Surface finishing
Powder coating

Powder coating is the most popular method of painting aluminium profiles. The advantage is above all in the unlimited colour palette, different lustre effects and very high colour fidelity.

 

 

Technical capacities:

  • Dimensions: Max. 7.500mm
  • Coat thickness: 60-140µm
  • Surfaces: RAL, NCS colours as well as custom-specific metallic and special colour shades
  • Lines: Horizontal and vertical powder-coating lines
  • Quality certificates: GSB standards, Qualicoat, ISO 9001

 

Surface finishing
Mechanical treatment

  • Grinding / Brushing
    Grinding or brushing provides a possibility to enhance the decorative character of a profile and its surface. In this way, fine traces in the grinding direction are visible on the surface. They can be "very fine", "medium" or "coarse" ground.
  • Polished
    Polishing levels the surface and increases the gloss. The surface is designed according to the wishes of the customer. High-gloss surfaces may e.g. chemically polished and anodised (high gloss).
  • Barrel finishing
    Barrel finishing is used to deburr sharp edges. Depending on the polishing medium, a matt or a glossy surface can be produced.

Development

We usually work with our
customers to develop special
aluminium profiles in the early
stages of development projects.

Development

Die production

With our own CAD designers
and development engineers,
we are able to press profiles with
complicated cross-sections and ratios.

Die production

Aluminium extrusion

Every industry brings its own challenges,
which the employees at EXALPRO are
surpassing by developing new, customer-
specific aluminium profiles.

Aluminium extrusion