The development and production of the first Schober rotary diecutting and stacking machines for the production of in-mold labels goes back to 1990 and more than 60 RSM machines have been installed in over 30 countries all around the world.
The web fed Varicut technology, designed for image sizes of 410 x 820, was introduced to the market during Labelexpo 2015. Meanwhile, a big step has been made in the development and design toward the wide web converting technology. Consequently, the machine portfolio has been extended, after the RSM410-Varicut and the RSM520-Varicut, now with the RSM770-Digi-Varicut. All of them come with a format variability range within 200 mm.
With the RSM770-Digi-Varicut, Schobertechnologies has developed a new generation of hybrid drive technology designed for digitally printed flexible packaging materials, which combines continuous and vector rotary diecutting technology in re-registration mode. Therefore, a wide range of formats can be processed with a single tool or magnetic cylinder.
With a fully modular design, the RSM770-Digi-Varicut is designed to convert webs up to 770 mm width to suit image sizes of 740 x 1100 mm.
The handling and stacking of difficult materials became much easier, thanks to automation and robotization. The standard configuration of the RSM770-Digi-Varicut includes a high-speed, programmable robot-automated stacking and counting system ("Spider"), which combines extreme acceleration, velocity and precision at a continuous web speed of up to 50 m/m.
Stations for micro perforations, as well as injection hole diecutting and waste extraction, are also available options.
A nested configuration is used to maximize the use of materials. The equipment is designed to stack different types of products combined within the same printing image. These can be heavily nested or can be a combination of very large/long and small products. Universal fast interchangeable pick-up plates take up products at synchronized high speed and stack them non-stop into a dual piling cassette system. A 100% product quality control inspection system with defective product discharge is a further option.
Short setup times with minimum waste and cost-effective cutting technology with maximum lifetime due to micrometric die wear compensation adjustment are additional benefits of this converting technology.