A joint project led by Dörken, EJOT and WMV developed a new coating technology for fasteners and small parts with internal drives.
After a joint development conducted by Dörken, EJOT and WMV that lasted almost 5 years, the companies have presented a new technological innovation for the coating of fasteners and small parts with internal drives.
The new coating technology, developed at the EJOT site in Tambach-Dietharz (Germany), ensures an extremely even and thin coating structure for small fasteners with internal drives such as TORX® or TORX PLUS®. The corrosion protection experts at Dörken were involved from the initial planning of the project and provided the parts-specific coating materials.
The three companies together identified an ideal and parts-specific coating process and developed the world’s first system capable of coating 120 kg material with a simultaneous position shifting at an acceleration of 32 g. The WMV PULZ® unit (a planet wheel, roller and coating centrifuge) coats items such as small parts with hollow spaces as well as fasteners while a Dörken’s zinc flake system provides corrosion protection.
The permanent rotation with simultaneously high acceleration level (32g) results in an even, process-safe and thin coating of the part. The new coating technology also benefits the environment, as the optimised coating process results in a reduction in CO2
emissions (almost 30% compared to previous processes).