PaintExpo 2024: Walther Trowal presents the new Rotamat R 100
At PaintExpo 2024, Walther Trowal will be presenting the new Rotamat R 100 for coating elastomer sealing elements with bonded and decorative coatings for the first time. The new system coats three times as many parts per batch as the previous largest system in the series, which meets the requirements of some contract coaters.
An important area of application for the Rotamats is the coating of O-rings and flat gaskets, for example for sealing the individual cells in battery packs, as well as in fuel cells, engines and gearboxes. Especially for the coating of large-format sealing components, which are installed in the cooling circuits and control units of electric vehicles, for example, the demand for larger coating systems has increased significantly, particularly among contract coaters. This is why the new Rotamat R 100 has a capacity of 160 l or 100 kg. For example, it can coat around 300 sealing rings with a diameter of up to 350 mm or up to 50,000 O-rings per batch. This increases Walther Trowal's contract coating capacity by a factor of three compared to its predecessor, the R 85, while requiring the same amount of time and only slightly more energy and space.
"Up to now, our customers have used the Rotamat for coating O-rings. But with electric vehicles, the focus is increasingly on large, often flat sealing elements made of elastomers for battery cells and cooling circuits with heat exchangers," says Frank Siegel, Sales Manager "Coating Technology" at Walther Trowal. The new Rotamat is also suitable for the decorative coating of plastic parts, for example made of ABS or polyethylene, as well as for thin-walled metal rings with diameters of up to 300 mm, which are coated with a binder, for example as shaft sealing rings, before elastomers are applied. In addition, the company has expanded the range of applications for rotamats for coating sealing elements, for example for applying oils and waxes as well as slow-drying paints.