In recent years, with the increasing demand for large-format printing in the fields of packaging printing, publishing and printing, the market for large-format offset printing presses has become active. Large format offset printing machine greatly improves the printing production capacity, improves the production efficiency, and brings higher profits. It is the first choice printing equipment for completing large-volume printing operations. It is a development trend. Become the mainstream of offset press development. Here are some of the large-format multi-color sheetfed offset presses currently on the market.
1 KBA Rapida 142/162 / 162a
KBA is a recognized leader in the design and manufacture of large-format multicolor offset presses.
KBA Rapida 142/162 / 162a large-size sheet-fed offset printing machine series has a smoother shape and more elegant lines, which fully demonstrates the perfect combination of people and equipment. This series of presses have reached the standards of contemporary folio models in terms of operating comfort, adjustment time, automation and effective speed, and are superior to the economy in terms of economy. It is particularly prominent when printing tasks are predominant. The advanced console technology has the following configurations: can be selectively integrated in the digital workflow; comprehensive automation of main functions (such as plate change, stack replacement or non-stop stack control); on-line density and chroma quality Adjustment; pre-adjustment of most machine components and attachments. These provide a guarantee for extremely short adjustment time and comfortable operation.
KBA Rapida 142/162 / 162a can be used in commercial printing, book printing, packaging printing and other fields, and can be printed on different media such as paper, cardboard and corrugated paper.
2 KBA Rapida 185/205
The launch of KBA's ultra-large size Rapida 185/205 has made the ultra-large size sheetfed offset printing enter a new historical era. This is the largest and most powerful printing press ever seen on the market. KBA Ultra Full Sheet Rapida 185/205 is suitable for printing in many fields such as books, posters, oversized packaging? Including G / E / F corrugated printing? In addition to all the characteristics of KBA full sheet machine, they also combine the large size of the equipment The characteristics of add some special devices for users to choose.
1? Online slitting device: installed on the impression cylinder of the last unit, the printing material can be divided into two by this device after printing, and then received on the stacking board of the receiving table, saving unnecessary After process.
2? According to the specific requirements of users, KBA can customize special machine printing size and printing plate size to meet different market demands and achieve personalized products.
Both Rapida 185 and Rapida 205 can be connected to six printing units. They use shaftless drive technology and are driven by four AC motors to feed the paper machine continuously to make the paper stack move continuously. The separation head and vacuum paper table are driven by a servo motor indirect transmission device, which can eliminate vibration. The mouthpiece device also has new improvements, replacing the outdated device with an air cushion to suspend the paper. Rapida 185 and Rapida 205 are composed of 17 ink rollers to form a short ink path, which can achieve rapid cleaning and stable ink transfer. Equipped with standard automatic plate changing device and camera detection control device.
3 Manroland 900
One of the exhibition themes of Manroland at drupa2008 is "large format".
The ultra-short turn-on preparation time of the ROLAND 900 offset press enables this large-format automated offset press to print more graphics and text than a small-format offset press. Printing paper can range from the thinnest paper to the thickest cardboard. The ROLAND 900 offset press is suitable for a variety of printing, including commercial printing, book printing and packaging printing, as well as printing in special fields such as printing exhibition boards, corrugated cardboard and metal foil.
The machine has the following characteristics: it can change the size, material and printing plate in a very short calibration time; it has extremely high flexibility and can handle a variety of different printing materials from paper to cardboard, plus its best additional device , Direct printing on F-shaped corrugated paper with a thickness of 1.2mm can also be handy; modular combination design can be used with advanced lifting effect system.
4 ROLAND 900 XXL
The ROLAND 900 XXL offset press has four formats: format 7, format 7B, enlarged format 7B and format 8, which fully meet the different needs encountered in large format sheetfed offset printing.
Roland 900 XXL continues the latest fully automatic technology of folio offset presses, making it even more powerful. The printing preparation time and printing speed are comparable to folio offset presses. However, due to the increase in size, the production efficiency is increased by 2 to 3 times.
All models in the Roland 900 XXL series use double-diameter impression cylinders and transfer devices, automatic parameter settings, and pneumatic side pull gauges. At the same time, you can choose to add one or two on-line coating units, or you can choose to add an on-line paper cutter. After online cutting, you can directly enter the folding process. ROLAND 900 XXL also has a major advantage, that is, it can be directly printed on G and F corrugated paper. Roland 900 XXL is suitable for print advertising, packaging and commercial prints.
5 Mitsubishi Diamond 5000LS / 5000LX / 6000LS / 6000LX
In 2001, Mitsubishi Corporation improved its diamond series printing presses, making them large-format, automated, high-tech offset presses, including Diamond 5000LS, 5000LX, Diamond 6000LS, and Diamond 6000LX. The LX type is designed for packaging printing, and the LS type is designed for high-speed printing.
Mitsubishi's large-format offset presses include the following automatic configuration: remote proofreading, ink volume adjustment, ink roller dead spot adjustment, and automatic rubber roller cleaning device. At the same time, the operator can monitor and adjust every function of the printing press through Comrac (central control of preparation process) in front of the computer console. It can also be equipped with Mitsubishi Diamond Link III automatic control system and GMI closed-loop ink control technology to achieve higher printing quality. Large format offset presses produced by Mitsubishi are suitable for large format carton and label printing.
6 Heidelberg Speedmaster XL145 / XL162
At the drupa 2008 exhibition, Heidelberg Printing Machinery Co., Ltd. launched the Speedmaster XL145 and Speedmaster XL162 two large-format multi-color sheetfed offset presses, which are perfect for Heidelberg's existing high-end equipment for sheetfed offset presses In addition, they are specially designed for packaging printing and publication printing.
Heidelberg Speedmaster XL145 / XL162 series' ease of operation, shorter printing preparation time, advanced synchronous cleaning device and many other aspects have brought unparalleled advantages to users. Compared with similar equipment, the productivity of the Heidelberg XL145 / XL162 series can exceed 20 percentage points. The Speedmaster XL145 / XL162 series offset press also has a digital control system and is highly integrated with Prinect workflow. The Speedmaster XL145 / XL162 meets the Heidelberg standard expected by users in terms of manufacturing process, equipment durability and printing quality. Corresponding to the substrates with different thicknesses, the equipment configuration will be different. The Speedmaster XL145 / XL162 meets more than 75% of the production needs of the ultra-large format market.
7 Beiren 800-4
The machine has the following characteristics.
1 Imprinting, paper transfer and rubber roller are all supported by high-precision rolling bearings specially made by Beiren. This bearing not only makes the above rollers have high rotation accuracy, but also overcomes the defect that the sliding bearing is easy to research the dead sleeve.
2? The unique design of three sets of gripper teeth and high-point closed-end cams ensures that gripper force is uniform and even, even if the user needs to adjust teeth, it is easy to maintain.
3? Concentric cam controlled centering swing type paper delivery mechanism to ensure accurate overprinting.
4? Fully adopts pneumatic technology to realize pneumatic clutch pressure and pneumatic clutch ink, which improves the automation level of the whole machine. In order to prevent the dirty problem of the printed matter, the machine is equipped with a complete blower system.
5? In order to facilitate accurate and stable paper feeding, vacuum suction board and variable speed paper feeding technology are adopted.
6? The overall layout meets the requirements of ergonomics, beautiful appearance, large operation and maintenance space.
7? The printing pressure between the rubber and the impression cylinder is adjusted by the electronic touch screen, which greatly shortens the pressure adjustment time caused by the change in paper thickness.
8? Adopt electric pull plate technology to realize the circumferential and axial pull version.
9? The use of alcohol dampening system to comprehensively improve print quality.
10? Equipped with electrostatic powder spraying device.
8 New machine shares XJ4142D / XJ4162
The leaders of the new machine even put forward the slogan "To make Henan New Machine the first brand of large format printing machine in China". At the end of 2006, Henan Xinji also made great efforts in market promotion, and held the "Large Format Printing Technology Seminar and 2006 Annual Dealer Annual Conference" and the first "New Machine Cup" National Large Format Printing Exhibition.
The machine has the following characteristics.
1 All rollers are supported by rolling bearings, the preload eliminates the gap, the machine operates lightly and smoothly, with high precision.
2? The cylinder arrangement adopts the anti-triangle "seven o'clock" method, and the paper is handed over after the printing is completed to ensure the quality of the printing.
3? Double-diameter cylinders are used for the imprinting, paper transfer and take-up rollers to reduce paper deformation during the printing process.
4? Touch screen control, easy to operate, the main motor, water roller motor frequency conversion speed regulation, saving power consumption.
5. The printing plate cylinder adopts quick-change plate clamps, and is equipped with axial and circumferential plate-drawing mechanisms, which effectively shortens the printing preparation time.
9 Chang? NCS14404
The machine has the following characteristics.
1? The paper delivery method is a concentric cam-driven centering swaying paper delivery tooth and a paper transfer roller mechanism at the same speed as the impression roller, which greatly reduces the vibration and noise of the machine and ensures accurate registration.
2? Great paper biting force, stable paper feeding, accurate color registration and clear dots.
3? The pressure of the ink roller and water roller is adjusted by the worm gear mechanism on the inner side of the wall board, the adjustment range is large (± 3mm), and the operation is very convenient. The four-color machine adopts electric version, pneumatically separates water and ink.
4? The use of intermittent oil supply, pre-oil supply, users can adjust the oil supply time and oil supply according to need.
5? The water outlet roller is driven by a frequency modulation motor, which can be adjusted steplessly within the range of 0 ~ 35r / m.
6? Equipped with powder spraying device and ultrasonic double-sheet controller.
7? The take-up roller is of movable rod pulley type, and the rod and wheel can be adjusted arbitrarily according to the situation of the picture to avoid rubbing.
8? All cams are designed by computer optimization and processed by numerical control. The cam curve is reasonable, the processing precision is high, the mechanism runs smoothly and the noise is low.
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