Four-color four-color MOV650 Heidelberg offset press. There are four specifications for the rubber roller used in this machine. However, the roller core of the roller has the same geometrical dimensions. The only difference is that the outer diameter of the rubber layer of the rubber roller is different.

We know that after the rubber roller has been used for a certain period of time, the rubber layer must be replaced after the outer surface of the rubber layer of the roller wears to a certain extent (ie, the worn rubber layer is removed and replaced with a new rubber layer).

The outer diameters of the above four types of rubber rollers are 57mm, 55mm, 53mm and 51mm respectively. Under normal circumstances, after wear, when the diameter of the outer circle decreases by ≤ 2mm, it can be repaired by fine grinding. Use it instead. That is, the diameter of a 57mm diameter rubber roller was changed to a diameter of 55mm after wear and then changed to a diameter of 53mm after the wear. The diameter was changed to 51mm. Through three times of finishing and refitting, it not only saves cost, but also shortens the update cycle of the rubber roller.