Sheet machine

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Sheet-fed machine - a printing machine in which a printing substrate is fed to a machine from a stack of defined sheets.

Machines of this type belong to many categories - they can be both flat and rotary machines.

The main limitation of sheetfed machinery due to their construction is the ability to use rigid rigid substrates, which in practice translates into a "bottom" of their basis weight. Thinner substrates can only be fed from the coil, so only on coil machines. Another limitation of sheet machines is their lower printing speed resulting from the sequential way of feeding the substrate to the machine (as opposed to continuous in web machines).

On the other hand, the great advantage of sheet-fed machines is that they have a short lifespan of only a few sheets, which allows for quiet and precise setting of these machines, where they can be switched on and off repeatedly, It does not stop anymore, and all settings are done there on the wearer. So sheetmeters make printing very low.

wiki

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