Rotomec offers short run waste savings

23 May 2006


Launched by Bobst Group company Rotomec at an open house during Converflex, Milan, in May, the MW60 gravure press is designed for short runs of medium web width with considerably reduced materials waste and energy. Three orders have already been taken for this very different looking short web path press. Web widths are 600mm and 800mm and maximum speed is claimed to be 250m/min.

Said sales manager of gravure presses François Galloppini: “Increased oil prices have led to rises in the costs of raw materials and energy. With the MW60 we have minimized waste – our objective was to have 50 per cent less material in the press.” In the demonstration on the 10 print unit press, web length infeed to outfeed was 48m (the company’s RS 4003 has a 90m path length). The reduction in web length is achieved by the innovative compact, angled, dryer design. Dryer inside length is 1.1 – 10m.

Designed for flexible packaging and labels, the MW60 is an electronic shaft non trolley type press operated totally from floor level (no catwalk is needed). The design provides for front loading of gravure cylinders, which can range from traditional hollow or lightweight cylinders to the latest thin sleeve technology, and or the inking system and impression sleeve. The operation is carried out without releasing the web tension and without tools. Rotomec has partnered with Janoschka, which was also present at the open house to demonstrate its latest Cylight technology.

Positioning of the doctor blade assembly is fully automatic. It features a pre-settable angle with positioning piston and an oscillating doctor blade with dedicated inverter driven motor. The press integrated register control system (using high dynamic interface technology), as well as the patented total automatic pre-register settings (TAPS) job start-up feature, is claimed to enable a further reduction of substrate waste, ink and solvent consumption during job changes.

When Converting Today watched the demonstration, the change (print cylinders plus one colour change) with washing sequence took 13.26min to print in register. In fact, the demonstration took only 30s to reach production speed. “In a short run model case study we can show a decrease of 45 per cent of waste material and minus 75 per cent ink,” explained François Galloppini.



Contact

Rotomec
Tel: +39 0142 4071





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