The VIVA 340 is a variable size rotary press without change of cylinders, for label printing. It allows with only one set of 14-inch cylinders to work all sizes between 2 and 12 inches. The web motion is adapted for each size to the repeat length, and compensate through a draw-back motion the difference between the repeat and the cylinder circumference. The range of use of the VIVA 340 is vrey wide, as it can go from small to long runs. Plate installation is a matter of seconds, and is done without removing any cylinder from the machine.
Size change is totally electronic and instantaneous.
Enering a new repeat ength into the machine gives automatically the position of each printing module, in order to realize pre-register without wasting material. The display of the printing module position is at a 0,1 mm-accuracy. The VIVA 340 productivity is among the best in its category. 340 Waterless, in offset.