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Face and Reverse Printing

Highest print quality and the speedy processing of orders are still expected on even very com- plex print jobs. This sort of customer demand can be perfectly fulfilled and at the same time economically produced by using Heidelberg's trusted perfecting technology, so-called "One Pass Productivity."

"Print shops in commercial printing, who produce highly demanding two-sided periodicals, magazines, business reports, or product and image brochures under deadline pressure, can expand their customer base by using long perfecting presses from the Speedmaster series," says Matthias Wenderoth, Product Manager 70×100 at Heidelberg. In terms of flexibility, quality, and not least productivity, these presses are simply unbeatable. The clearest advantages emerge, above all, with respect to productivity - in comparison to four or five-color presses, for example. Perfecting presses save time and money by printing both sides of a printed sheet in one throughput, both in equally high quality.

This technology provides cost savings to print shops on many levels. After all, sheets that have been printed on one side do not have to be removed from the press, reversed, allowed some time to dry, and then printed once again from the other side. In addition, the accumulation of spoilage is reduced and there are cost savings, likewise. Heidelberg's approach to perfecting, now already available for more than 20 years, has continuously been developed further. Depending on the given Speedmaster series, there are perfecting presses in individual configurations from two to twelve-color machines, with or without coating unit.

The palette ranges from the Speedmaster SM 52, through the Speedmaster SM 74, to the Speedmaster CD 74 and Speedmaster SM 102. As different as these presses may be, as far as perfecting technology is concerned, they share many similarities across all production series. The following characteristics are especially worth noting in this respect:

  • TransferJacket Plus: a new kind of ink-repellant and replaceable jacket for transfer cylinders 1 and 3 before the perfecting device. It ensures a controlled and careful transfer to the next printing unit.
  • Three-drum perfecting: rotary suckers on the storage drum stretch the sheet, which is turned in the gripper closure with patented pincer grippers and, preserving register accuracy, then passed along to the next printing unit.
  • PerfectJacket Plus: a further developed, replaceable impression cylinder jacket after the turn. The freshly printed face sheet is then carefully transported by the extremely fine and ink-repellant base structure through the perfecting unit.
Speedmaster SM 52
With up to eight printing units, this is the only long perfecting press in its format class. A 4-over-4 or up to eight-color orders can be produced economically at a printing speed of up to 15,000 sheets per hour. A broad range of printing stock thicknesses is possible, from 0.03 to 0.4 millimeter, or optionally up to 0.6 millimeter. Minimal make-ready costs and rapid throughput times are only some of its advantages. Ideal orders would be book jackets, or demanding advertising print materials in small runs with a minimal number of pages. Following Ipex, a special model of this press with ten colors will also be made available.

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