Development Status and Prospects of Famous Offset Printing Machines Abroad

The 5th International Printing Exhibition was finally opened in the hope of people. The exhibition brought together exhibitors and visitors from all corners of the world. The famous foreign offset press manufacturers include not only Heidelberg, Manroland, KBA, and Komori, but also the offset press series exhibiting not only sheet-fed but also web-fed presses. Through the exhibition facilities in the exhibition hall, we can easily see the current status and development prospects of the offset press market.

First, the development status and characteristics of internationally renowned sheetfed offset presses

In recent years, although digital printing has once become a hot spot in the industry, offset printing technology still has enormous vitality and is an indispensable and important part of the printing market. This is not only because the offset printing technology already has a mature production process and can print high-quality prints, but also because the offset printing equipment manufacturers always pay attention to the changes in the printing market and constantly have the latest technology and equipment introduced. The vitality of printing technology is strong. From the exhibited sheetfed offset printing equipment, it can be seen that new technologies and new concepts have been increasingly incorporated into new offset printing equipment. Constantly improving the design and updating of products, so that modern offset presses have more perfect printing quality, faster printing speed, more amazing production efficiency, smaller waste, and a higher degree of automation of more simple operations are always the manufacturers. the goal that is pursued.

At this exhibition, in addition to exhibiting its Speedmaster SM series offset presses with proven technology, Heidelberg again launched its Printmaster PM74 offset press. In order to reduce costs and meet the requirements of the mid-range printing market, the Pressmaster PM74 offset press combines the mature technology of the SM magnetic offset press with the basic concepts of economic printing, with outstanding features of high printing quality and lower running costs. At the same time, in order to meet the increasing demand for on-demand printing, Heidelberg has also introduced the GTO52 compact multi-function offset press. In addition to the basic printing job requirements, it can also be equipped with gloss, numbering, tying, and die cutting. Flip and other functions, with greater flexibility in printing and finishing.

Manroland continues to exhibit its powerful Roland 700, 300, and 900 series offset presses, as well as Roland 500, a four-width format packaging press. The machine has an ultra-high print speed of 1800 prints/hour. It can print from 0.1 to 1.0mm of printing materials, and it also has a coating and drying machine. The machine can meet the requirements of the diagonal registration of printed products by adjusting the position of the dental caries of the transfer system, so that it is not necessary to make adjustments on the plate cylinder. At the same time, the improved feeder system and the transfer paper tooth can be better adapted to high-speed printing requirements. Not only that, in order to meet the requirements of economic printing, Roland also focused on promoting its compact Roland 200 offset press.

At the exhibition, Gao Bao Company still vigorously promoted its outstanding model KBA105 newly introduced on DRUPA2000. The machine has a very high print speed of 2100 sheets/hour design speed, feeders with "four to six delivery" feeders, vacuum feeding, hem delivery, hem type front gauge, pneumatic side gauge, ultrasonic double The new system and structure design of Zhang detection, air cushion transfer, pneumatic delivery, "1" ink supply system, etc., also has a "cat claw type" tusks for the paper centering, transfer and impression rollers, and The impression cylinder adopts "cat claw type" fangs, diagonal register adjustment and other functions. In order to increase the operation stability of the machine, improve the precision of dynamic rotation and ensure the printing quality, the KBA105 adopts the casting of the lower fuselage and the installation of the T-wall panel, which not only reduces the vibration of the machine, but also solves the problem of leakage of the lubricant. In addition, KBA also strongly promoted its KBA 74 four-opening offset presses with similar structure, control and quality to the KBA 105.

Japan’s Komori Corporation’s models exhibiting are still dominated by its main models, the Lithron 40 and 20, and strongly advocate its DoNet digital open printing network system. The system is not only an open environment that combines future innovative technologies, but also can directly connect standard digital information with the KOMKRI press and establish a management platform through the color management system. The open printing network system includes: Prepress, K-Color Profile, PDCS Accuracy Density/Spectrum Measurement System, Online Data Logic System (PCC) and Quick Setup and Quality Assurance System (Komori KHS) . These systems work in coordination with DoNet and make full use of preset data information, which can greatly reduce preparation time and provide a more flexible printing system for the short-run printing market.

From the printing machines exhibited by major sheetfed offset press makers at this exhibition, it can be seen that sheet-fed offset printing equipment is moving in the direction of multipolarity. On the one hand, excellent models pursue faster printing speed and higher degree of automation. This is mainly reflected in the higher design speed of the press and the adoption of more automated operations and adjustments. Through a series of automatic control functions such as automatic plate change, automatic setting, automatic detection, and automatic adjustment, the operator's labor intensity is reduced, the printing waste product rate is reduced, and the boot preparation time is greatly shortened, thereby improving production efficiency. The second is to seize the mid-range economic printing market. In the past, these famous offset press manufacturers often passed high quality, high speed, and high automation equipment with high quality and high prices. It is precisely because of the high price of this type of offset printing press that printers who seek higher printing quality but require lower printing equipment prices are lost. Therefore, at present, most of the famous printer manufacturers have begun to open up this field, under the premise of guaranteeing high-quality printing, to simplify the automatic chemical equipment functions, in order to enter the economic printing market. The third is for packaging and commercial printing. Both Heidelberg, Manroland, KBA, and Komori offset presses are generally developing printing equipment that is suitable for thin-cardboard printing commonly used in the packaging market, and equipped with optional units with a certain degree of post-press processing capability, thus meeting the packaging and commercial printing market requirements. The fourth is to seek independent or cooperative development of the digital printing market to meet the on-demand printing requirements. For example, Heidelberg still uses DI46 and Nexpress for its digital printing development. Manroland continues to promote its DICO Web, DICO Pack, DICO Page and DICO Press digital presses, while KBA is strongly promoting Karat 74 short-run color digital printing equipment.

Second, the status and prospects of the development of the internationally renowned web offset press

Web offset presses are known for their high speed, high efficiency, and high economic efficiency. Currently, web offset presses used in the printing industry are generally classified into newspaper rotary presses and commercial rotary presses depending on their use. In recent years, due to the fact that all the major newspaper offices in the country are in the stage of updating their equipment and improving the quality of printed materials, a large number of advanced newspaper circulation equipment from abroad has continued to flow into the country. At the same time, with the increasing demand for commercial prints, commercial rotary printing with higher quality and faster printing speed is also popular in the market.

Manroland web printing press is one of the most imported brands in China. Its newspaper rotation equipment includes COLORMAN, GEOMAN, UNISET, CROMOMAN. They are used for 16-page, 8-page, and 4-page newspaper printing, respectively. The printing speeds reach 86,000 copies/hour and 50000 copies/hour, 70,000 copies/hour and 50000 copies/hour, respectively. Independent drive technology, three-roller turbine wetting device and three-ring bearing technology are used. Its commercial rotary machine POLYMAN adopts the roll pillow technology to reduce the impact vibration of the machine, and uses multiple motors to drive independently so that each unit can independently change the plate operation and improve the production efficiency.

KBA has launched COMET and COMMANDER newspapers and semi-commercial rotary presses with print speeds of 70,000 copies/hour and 85,000 copies/hour respectively. All of them use the H tower printing unit arrangement with BASKO tension control system and automatic The quick paper receiving function can shorten the prepress preparation time and realize high speed and high quality printing. KBA COMPACTA215 web offset press is a commercial web offset press with a printing speed of 50000 copies/hour. It adopts independent drive technology without shaft to increase printing flexibility and work efficiency. Its narrow slit roller technology can reduce paper consumption. And working shock. The machine is equipped with high-performance Korpa Pastormat PC and Rastostar paper feeder. Its modular design can effectively reduce the operator's labor intensity.

From the current market situation of web offset presses, it can be seen that newspaper web machines are moving in the direction of faster color printing, higher degree of automation, more flexible paper feeding and printing methods, independent driving of printing presses, and more color printing units. Commercial web presses tend to improve the automatic setting capability and automatic control level of printing presses, use new technologies to improve the structure of printing presses to meet high-quality printing requirements, and provide diversified folds to suit the flexible processing of different types of printed materials.

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