Stuttgart, February 2019 – At this year’s European Coatings Show (19-21 March 2019, Nuremburg, Germany), Coperion and Coperion K-Tron will present their reliable, high-quality extrusion technology for manufacturing powder coatings. At its core is the Coperion ZSK twin screw extruder that, thanks to its outstanding mixing characteristics and gentle product handling, ensures absolutely homogeneous distribution of coating components throughout the powder and thus highest quality powder coating production. In order to introduce raw materials with process reliability into the ZSK process section, Coperion offers the side feeder ZS-B easy whose very low cleaning times set it apart from the competition. Visitors can see the ZS-B easy at Coperion’s booth (6-350, Hall 6) at ECS 2019. Moreover, a highly accurate Coperion K-Tron Quick Change Twin Screw Feeder with the intelligent ActiFlow™ bulk solid activator will be on display. It is optimally designed for ZSK technology, works with high accuracy, and is easy to clean.
Sophisticated ZSK Technology
Twin screw extruders from Coperion distinguish themselves with high achievable throughput rates at very good product quality, as well as with their longevity. In the last 40 years, Coperion has realized over 800 twin screw extruders for powder coating manufacturing, all the while continuously optimizing the technology.
The ZSK extruder process section features a modular design. It consists of multiple sections of barrels in which the two screws rotate in the same direction. The configuration of the barrels and screw elements is individually designed for each powder coating formulation, and can easily be modified for future formulations. The ZSK extruder’s design focus rests on closed surfaces that are easy to clean. The process section is clad with removable covers. A separate covering is located at the product discharge for the screw tips, thus enabling rapid screw changes.
Depending upon the properties of the raw materials to be fed, the ZS-B side feeder may be used. It functions like a small extruder and even leads material with low bulk density into the extruder process section with process reliability. Recently, Coperion introduced an optimized design of its side feeder to the market with the ZS-B easy, which will be on display at its ECS booth (6-350, Hall 6). The ZS-B easy can be dismantled much more quickly from the ZSK process section and its twin screws can be exchanged very easily. Time required for cleaning, for example when changing formulations, drops markedly.