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Color coating lines for aluminum

Color-coated aluminum strip for numerous applications

The special feature of color coating lines from SMS group is their compact process. Cleaning, coating, strip drying and exhaust gas treatment in the lines are in perfect harmony as the complete technology is supplied from one source. And that makes the lines attain an excellent material quality at little consumption of resources and energy.


Color coating lines

Line types
The lines differ depending on the final use of the material. For example, material for the building industry often requires three coatings (passivation, primer, paint) while can-end stock grades only need two layers (passivation, paint). They are also thinner.
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Color coating line for can-end stock

Here is how the process works

First, the surface must be prepared for color coating. This means cleaning it, then treating it with a passivating chemical. Next, two finish coaters with high-efficiency control systems apply a uniform and precise coating in the layer thickness required. Whatever the thickness, our lines ensure low media consumption. What follows is a floatation oven, where the solvents are outgassed in a contact- free process. That hardens the color layer on the strip. To protect the finished surfaces and improve the material's deep-drawing property, a wax layer can be applied. This is done in a vertical roll coater using heated rollers.


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Floatation oven

Contactless and efficient drying

Our high-performance floatation oven for drying the solvents stands out for even heating, cooling performance, and exceptionally high efficiency. It also comes with top green credentials. To ensure a flawless finish, the strip travels contact-free through the entire furnace.

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Regenerative thermal oxidizer

Technologies designed to your requirements

Our regenerative thermal oxidizer system (RTO) burns the flue gases in the oven with a thermal efficiency of 98%. Depending on the solvent content in the exhaust air, the afterburning system and even the oven itself can be operated without additional energy input (autothermal mode).

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Coating technology

Precise and reliable coating

Here, we offer you a comprehensive range of coating systems for color coating lines. Whichever type you choose, you benefit from top precision and reliability. Just as dependable is our closed-loop thickness regulation system because it guarantees precise coat thickness every time.

Selected References

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Level 2 system

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Digital twin

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3D real-time simulation of technology prior to installation

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Solution for smooth process flow and constant high quality

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New state of the art hardware, latest development software

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Emergency support - Remote Service

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Regular inspections and maintenance form the basis for safeguarding the efficiency of your equipment.

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Long-term maintenance services

SMS group offers you the full range of services along the value chain, while you can focus entirely on your core competences.

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Safety Locator

Protect your most valuable asset - your employees - with the SMS group Safety Locator!

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Smart Maintenance

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SMSgroup Melster, Stefan

Stefan Melster

SMS group GmbH
Technical Sales Processing Lines
Eduard-Schloemann-Straße 4
40237 Düsseldorf

Phone : +49 211 881 5217

SMSgroup Timmerbeul, Walter

Walter Timmerbeul

SMS group GmbH
Vice President Electrics/Automation Processing Lines and Furnaces
Eduard-Schloemann-Straße 4
40237 Düsseldorf

Phone : +49 211 881 5708

SMSgroup Genssler, Ronald

Ronald Genssler

SMS group GmbH
Service Processing Lines
Ivo-Beucker-Straße 43
40237 Düsseldorf

Phone : +49 2161 350 3570