A printing cylinder is a rotating press component that carries an image, transfers ink, supports the substrate, or applies pressure. The term does not identify one universal part: a gravure cylinder, flexographic plate cylinder, offset blanket cylinder, and impression cylinder perform different jobs.
(Last modified date: September 11, 2026)
Identify the cylinder by its job
| Cylinder | Primary job | Typical process |
|---|---|---|
| Gravure cylinder | Holds ink in engraved recessed cells and transfers the image | Rotogravure |
| Plate cylinder | Carries a printing plate | Flexography or offset |
| Blanket cylinder | Receives the image from the plate and transfers it to the sheet | Offset lithography |
| Impression cylinder | Supports the substrate and provides nip pressure | Several web and sheet processes |
| Anilox roll | Meters a controlled ink film to the plate | Flexography |
How gravure and flexographic cylinders transfer ink
In gravure, the image is engraved into small cells. Excess ink is removed from the non-image surface and the substrate meets the cylinder under pressure. The EPA’s printing-process description documents this basic sequence.
In flexography, the image is raised on a plate mounted to the plate cylinder. An anilox roll meters ink to the plate, while the impression cylinder supports the web. Calling the anilox roll a printing cylinder can hide its distinct metering function.
Cylinder construction follows the process
Material, surface finish, engraving, balance, concentricity, stiffness, journal condition, and runout influence the result. The important acceptance criteria depend on whether the cylinder carries the image, meters ink, or supplies pressure. A maintenance limit from one press should not be copied to another.
Diagnose cylinder-related defects
- Repeating mark at a fixed interval: inspect circumference-related damage, contamination, or gear effects.
- Uneven density across the web: inspect pressure, alignment, surface condition, and ink transfer.
- Register changes: check drive, tension, cylinder setting, and mechanical wear.
- Vibration at speed: inspect balance, bearings, journals, mounting, and press condition.
Record the repeat distance, direction, speed, station, and affected colors before removing a cylinder. That evidence narrows the cause.
A printing cylinder is not always the printed cylinder
A conventional printing cylinder is part of the press. A bottle, tumbler, tube, or other round object is the substrate. Digital cylinder printers rotate that object under inkjet heads and do not require an engraved image carrier for each design.
If the job involves variable or short-run graphics on finished round objects, review the AJ360i digital cylinder printer. A useful feasibility request includes material, diameter range, length, taper, printable arc, artwork, quantity, and durability requirement.
Frequently Asked Questions
What does an impression cylinder do?
It supports the substrate and applies the pressure required at the printing nip; the exact arrangement depends on the press.
Is an anilox roll the same as a plate cylinder?
No. The anilox roll meters ink, while the plate cylinder carries the flexographic plate.
When is digital cylinder printing preferable?
It can suit variable artwork and shorter runs on finished round objects, subject to diameter, geometry, fixture, ink, and adhesion tests.
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