The continued growth in demand for rotary screen effects has led German self-adhesive label manufacturer Rako to install a second Stork RotaLen 5511 direct laser engraver for its nickel screen cylinder imaging operations. The new engraver, developed by Stork Prints Austria, has been specially adapted to provide a fast means of imaging both RotaPlate screen meshes, which run on non-Stork systems, as well as the re-engraveable RotaMesh screens the machine normally handles.
Stork Prints account manager Ger Roza explains: “This special hybrid edition of the engraver accommodates both a magnetic drum for the RotaPlate, as well as brackets, which are used to engrave RotaMesh. Rako originally began imaging RotaPlate by conventional exposure. Because of the sharp increase in consumption of the screen, this method became ineffective. Now, with the increased productivity of the new engraver, they will be perfectly able to maintain a smooth and flexible workflow.”
The new system will also be able to reduce the workload of the existing RotaLen engraver, which has been responsible for all of Rako’s RotaMesh imaging requirements since its October 2006 installation. The company runs 35 RotaMesh-compatible RSI (Rotary Screen Integration) modules on 20 presses at its factory in Witzhave.
Stefan Behrens, Rako’s prepress manager, comments: “The RotaLen and the direct laser engraving process have brought us greatly improved productivity levels, a much simplified workflow and perfect quality consistency. The second laser engraver, with its dual-format capabilities, gives us full job scheduling flexibility and the freedom to increase output yet further.”
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