Since 1996, Heidelberg has begun to work on the design and production of a new family of newspapers, combining its extensive experience in newspaper printing and commercial printing. In November 1998, Heidelberg Printing Machinery Stocks Co., Ltd. announced that Heidelberg will be dedicated to the development and production of a new generation of newspaper rotary presses, and also announced the official start of the new mainstream 80 (Mainstream 80) rotary press manufacturing.
The new mainstream 80-rotation press was designed to accommodate future newspaper printing and better meet the needs of newspaper editors. It is currently undergoing various tests at the base in Heidelberg, USA, and will be in Düsseldorf in 2000. The drupa exhibition unveiled. In fact, the new equipment was exposed at two exhibitions during the year. The first component, the Heidelberg ConTIWEB FD high-speed automatic bin, participated in the show.
Prior to the development of mainstream equipment, Heidelberg's engineering and technical experts met with nearly 100 press authorities in Europe, North America and Asia to discuss their requirements for new products. Bob Brown, President of Heidelberg Rotation Systems, said: "They need higher quality printing, richer colors and shorter printing time. They emphasize that more flexible and economical printing production is what they need." After wide discussion, the mainstream 80 of the first model of Heidelberg's new press rotation family will be a model of 8 double-drums with a 1:1 ratio between the plate cylinder and the blanket cylinder. Mr. Brown explained: "This new model provides faster printing speeds, shorter setup times and fewer plate numbers, which fully meets the needs of newspaper manufacturers." Heidelberg opted for high-speed double-width printing. Industry publishers offer higher productivity and greater adaptability, which can reduce the printing plate consumption of 50 compared to the traditional 16-version rotary press; if compared with the single 8-version rotary press folded in deposit page mode. In comparison, production efficiency can be more than doubled. The mainstream model adopts the form of vertical paper feeding. The tower structure and relatively simplified folding machine design can also reduce the space required for installation.
The Heidelberg Contiweb FD high-speed automatic splicer, already on display at the fair, features two electrically adjustable paper arms that can be independently adjusted horizontally. The integrated paper feed unit with a motor-driven draw roller and swing roll feedback system ensures the paper tension. Its automatic features include the automatic clamping and centering of the paper roll. The use of an automatic rewinder also enables the automatic splicer to embody a highly automated level, and the integration and height control capabilities make it a perfect part of the mainstream 80 presses.
In the Heidelberg press, this was the first time in design time that it combined Heidelberg's revolutionary commercial web technology, the Sunday technology. Since the Sunday technology of the seamless blanket principle and the non-shaft drive system was applied in production in 1992, the productivity improvement brought by the printing press in the field of commercial rotary printing on Sunday has attracted a lot of attention. These technologies have also been applied to newspaper printing today, guaranteeing the dynamic stability of mainstream models operating at 80,000 rpm.
Mainstream models can flexibly use a roll-cutting and impact folding machine with a fixed tie and fangs for deposit-free folding. Its roll-folding machine has a roller ratio of 5:5, an output of up to 80,000 copies per hour, and an impact folding roller ratio of 3:2, producing 75,000 copies per hour. With these folding machines, the number of pages can be adjusted from two to eight pages in increments of between two pages, enabling the newspaper to expand the ad layout without the need for the four-page increment required for the page save method. Heidelberg has combined the postpress department and the wheel turn department into the new Heidelberg Rotation Systems company. With the perfect Heidelberg sales network and a global technical support network, Heidelberg can provide a complete set of paper supply equipment and printing equipment for the newspaper printing industry. And the entire printing system in the post.