KBA North America

KBA RotaJET 76

At drupa 2012, KBA will introduce the KBA RotaJET 76, a high-volume web-fed inkjet press of the latest generation for the on-demand or individualized production of four-color books, brochures, commercial products, mailings and magazines. Engineered for a maximum web speed of 150mpm (493fpm) and web widths of up to 780mm (30.7in, corresponding to approx. 3,000 A4 pages/min or 85 million pages per month), the KBA RotaJET prints with water-based pigment inks. The state-of-the-art piezo inkjet heads are reliable in production and require only a minimum of maintenance. They have been designed for heavy-duty use and contribute to the high availability of the overall system. Frequent replacement is avoided and uninterrupted industrial production is guaranteed.

Precision engineering from KBA is here the key to high print and register quality with the inkjet technology. This quality is only realized, however, in combination with precise web tension. The unwinder and infeed unit have thus been designed specifically for the RotaJET. Together with an ingeniously simple web lead without turning bars for four-color production, they ensure excellent results. Web tension is controlled fully automatically. The RotaJET 76 is able to produce good copies, even during the start-up phase. This permits considerably more efficient production and at the same time enhanced flexibility.

An automatic reel stand with integration into automated paper logistics is to be made available in future as an option to further boost productivity. The web offset expertise is unmistakable.

The two arrays of 56 inkjet heads each (total 112) form an arch over large central impression cylinders for four-color printing on both sides of the web, but can still be shifted aside for cleaning and maintenance purposes. This arrangement provides for optimum web guidance and facilitates an outstanding print quality even with problematic materials. The printing heads are cleaned and aligned automatically (stitching) to minimize manual intervention and ensure straightforward handling.

The system offers a native print resolution is 600dpi, while the variable droplet size represents an additional quality plus. A dispersion coater is planned as a future option for further quality enhancement. Internal communication is compliant with the JDF standard, as is the integration with third-party systems – another feature which helps to optimize processes and lower costs.

The KBA RotaJET 76 offers personalized production driven through the popular Adobe APPE (Adobe PDF Print Engine) workflow. A powerful front-end is geared to the high data throughputs associated with industrial-scale print on demand applications. With even the largest data volumes, the RotaJET 76 delivers full-color variable production at maximum speed, without stoppage and waiting times. Another advantage is that KBA speaks the language of generations of printers and understands the demands they place on systems, processes, and final products.

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