A Gravure Cylinder is the engraved image carrier used in gravure printing.
There are two primary types of cylinder bases: gravure sleeve cylinder and gravure shaft cylinders.
Gravure Sleeve Cylinder needs to have shafts attached prior to installing it on the printer and Gravure Shaft Cylinder is a more expensive and comes with attached shaft used for every stage of preparation and printing processes mitigates against decreased print quality caused by the compounding of shaft inaccuracies.
A Gravure Cylinder is a typically steel cylinder base, or an underlying metal structure that supports the engraved image performed by the diamond engraving electronically controlled process on a electroplated a layer of copper surface.The image comprising many tiny cells, the distribution and depth of which determine the lightness/darkness of a particular image area.
The next stage of production is electroplated a layer of chrome surface on top of the gravure cylinder what increasing the run length.
The final stage of production is a chrome surface polishing an measurement of the Total Indicated Run-out (TIR) of the cylinder, which means that a cross-section of the cylinder must be as close to a perfect circle as possible to avoid generating any "bumps" or printing distortions.
The Total Indicated Run-out of our gravure sleeve cylinders is ±0.0005 inch, that a roller can be out-of-round by that much before being deemed defective.
Please contact us regarding any question, technical aspects or Quotation in our competitive price .