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Dutch coatings machine maker EMB Technology has finally unveiled a machine that it says can provide high-speed, no-contact application of powder coatings in thin layers on web- and sheet-based coating applications.
The company, founded in 2004, compares the technology to “a roller coating application by which powder coatings are applied.” A YouTube video demonstration shows the machine in operation.
The machine was introduced recently at the 8th NIR Symposium in Germany, after seven years in development.
Controlled Thickness Cited
The machine is designed to apply powder coating at “relatively high speeds” on steel, aluminum and many other substrates by the EMB (Electro-Magnetic Brush) technique. The company says the machine delivers “a well-controlled and uniform” powder coating.
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| The process can apply powder coatings on flat substrates such as coils and sheets at relatively high speeds, the company says. |
EMB says the machine deposits an adjustable, controllable layer thickness on a flexible metal substrate between 50 and 70 micron with a thickness variance less than 3% at a working width of 800 mm. Higher speeds can be reached in coil coating applications, where powder needs to be applied with a lower layer thicknesses, the company says.
The company sees a range of new possibilities for powder coatings, as the technology provides for the thickness control that has been a key challenge for powder coatings. That will allow powder coatings to make inroads on solvent-based coatings, EMB says.
No-Contact Technology
The coating method is contactless, which prevents coating surface defects, while the process minimizes waste and overspray, according to the company. Changes to another material, another substrate width and/or another color can be done in minutes, EMB says.
The machine can accommodate material widths from 10 to 1650 mm for both flexible and rigid substrates.
The company is now searching for production partners.
More information: http://www.emb-technology.com.
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