Advantages and disadvantages of horizontal feed and vertical feed small offset printing machines (2)
fifth, the master used by vertical feed is smaller than that used by horizontal feed. When the horizontal feed small offset press is used for printing, it needs to clamp the edge of the board more, resulting in a certain degree of waste of master paper (at present, there is no zinc oxide plate making machine suitable for the horizontal feed specification), so the user's use cost is higher than that of the vertical feed small offset press
but for the small offset press of the same specification, compared with the small offset press with horizontal paper feeding, the small offset press with vertical paper feeding also has the following shortcomings:
first, because the drum of the small offset press with vertical paper feeding is thicker than that of the small offset press with horizontal paper feeding, the small offset press with vertical paper feeding takes a piece of paper longer than that of the small offset press with horizontal paper feeding, so the horizontal paper feeding has advantages in improving the speed of the small offset press. But for small offset press, speed is not critical. Horizontal feeding and green, low-carbon and environmental protection have become the development trend of the industry. The vertical feeding small offset press can reach 10000 rpm, and the normal printing of 6-7000 rpm is enough
the second is the tensile strength or strength limit. 2. When small offset printing machines are carrying out color overprinting, there will be a tail wagging phenomenon in the cluster development and improvement system. Due to the short paper feeding, the tail wagging phenomenon of horizontal paper feeding is relatively lighter than that of vertical paper feeding, so the general color overprinting is relatively accurate. However, because the small offset press, especially the monochrome press, cannot really realize high-precision color printing (the real high-precision color printing needs to use the commercial offset press, especially the offset press with more than four colors), the slight tail swing phenomenon of the small offset press does not affect the quality of the general color overprint
third, the paper will appear pleated in the printing process after being damped, which is a common problem of offset printing machines. Compared with the vertical feed offset press, the horizontal feed offset press is not easy to wrinkle, which is related to the direction of the paper. Generally, the horizontal feed paper is fed according to the horizontal stubble, so the paper is straighter and not easy to wrinkle, while the vertical feed paper is fed according to the clockwise stubble, so the paper is weak and can be pleated. If the paper is damp, the pleating phenomenon will be more obvious
the above are the advantages and disadvantages of the horizontal feed offset press and the vertical feed offset press. From the comparison, it can be seen that the vertical feed offset press has more advantages than the horizontal feed offset press, especially in terms of performance price ratio. It is one-sided and incorrect to arbitrarily say whether the horizontal feed offset press is better or the vertical feed offset press
in view of the shortcomings of the vertical feed small offset press, Yingkou Guanhua offset press Co., Ltd. has added many additional devices to its series of offset presses, such as the anti swing roller brush device and the air suction belt conveying paper conveying structure, the front and rear end drying device that prevents the paper from being discounted in the printing process due to moisture, etc., so that the vertical feed offset press can better meet the needs of diversified markets and help customers reduce costs, Solve the practical problem of using this material to strengthen the cushioning function in running shoes during printing. From the perspective of the development trend of international small offset printing machines, vertical paper feeding machines and horizontal paper feeding machines are currently popular internationally. Different customers choose their own suitable products according to their own needs. No one says that one type of machine is better than another
Yingkou Guanhua offset press Co., Ltd. is the leader in the small offset press industry in China. Over the past 20 years, it has put nearly 40000 sets of small offset presses on the market. From the perspective of our customer base, most of them are applicable vertical feed offset printing machines. Especially in recent years, in order to meet the needs of some domestic customers, we have also developed horizontal feed offset printing machines. Our purpose is to develop serialized small offset printing machines with different needs according to the requirements of customers. (Yingkou Guanhua offset press Co., Ltd. liuxuezhi)
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