Rotary diecutting

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Rotary Diecutting is diecutting using a cylindrical die on a rotary press. A long sheet of material will be fed through the press, and the die will rotate, cutting out shapes, making perforations or creases, or even cutting the sheet into smaller parts. A series of gears will force the die to rotate at the same speed as the rest of the press, ensuring that any cuts the die makes line up with the printing on the material.

Dies used in Rotary Diecutting are either solid engraved dies or some form of adjustable die. Engraved dies have a much higher tolerance and are machined out of a solid steel bar. Adjustable dies have removable blades that can be easily replaced with other blades, either due to wear or to cut a different material.