Water-supply unit may be called a printing plate water roll or water roll by version. Including two root, its surface as water roller transfer with hydroscopicity better water roll chemiluminscent. Rely on the role of water roll version from passing water roll and aqueous solution of water roll evenly to a printing plate. Its surface speed must be and the speed of printing plate surface are equal, are not allowed in axial and radial runout, otherwise cause damage to the printing plate. Regulation depends on the requirements of the water roll version is higher, you must follow the steps. The eccentric, first adjustment depends on version of water roll and roll series water pressure is just right. And then adjust the cone so that rely on version with water roller pressure plate. The above method to adjust the eccentric, change depends on version of water roll and roll series water pressure, but will also affect depends on version of water between roll and a printing plate.

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