- by John White
Digital Cylinder Printer: The Complete Guide to 360° UV Printing
- by John White
Digital Cylinder Printer: The Complete Guide to 360° UV Printing
Curved surfaces? Print straight onto bottles, tubes and cylinders — no labels needed.
A digital cylinder printer prints straight onto the curved surface of a bottle, tube, can, cup, roller or shaker — rotating the part under a UV inkjet head and curing the ink as it goes, with no plate or screen to make. It is the machine you buy when your order book is full of round objects, short runs and artwork that changes between jobs.
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This hub is the map for the whole subject on this site. Four deep guides sit underneath it: how the rotation and 360° stitching actually work, how to choose and price a machine, which materials and applications hold up in production, and how to run the machine so overlaps, banding and misalignment do not eat your margin. Every linked guide is written for the person who has to hit a ship date, not for a spec sheet.
The word "cylinder" hides three different businesses
Before you compare models, separate the three things people mean by cylinder printing, because they are bought by different departments and they do not compete with each other.
| What you mean | What it is | Who buys it |
|---|---|---|
| Printing on a cylinder | Rotary UV inkjet printing on bottles, tubes, cans, cups, rollers, shakers | Brands, decorators, packaging converters, promotional printers |
| A printing cylinder | The engraved or imaged roller inside an offset, flexo or gravure press | Press rooms and packaging plants |
| Cylindrical sheet printing | Screen or pad printing around a formed part | Shops that already own the screen line |
This hub covers the first row. If your question is about press rollers or gravure cylinder supply, the guides here will not answer it — and it would be a waste of capital to buy a UV rotary machine for that job.
How the 360° print actually happens
The part sits in a chuck or between centres. A servo motor rotates it in step with the head carriage so that the surface speed under the nozzles stays constant, the head fires a band of ink, and a UV LED lamp cures that band before the part rotates further. A full wrap is built from many narrow bands, which is why the hard engineering problems are all about seamless 360° stitching and alignment rather than about colour.
Three consequences follow. First, the fixture decides whether the job is profitable: a part that wobbles costs you rejects no matter how good the head is. Second, tapered parts need the software to compensate the rotation speed as the radius changes, or the image squeezes at the narrow end. Third, curing is done in-line, so a fast machine needs a lamp whose dose matches the surface speed — this is the real ceiling on throughput, not the printhead.
Cylinder or flatbed? Decide by the order book, not the spec sheet
| Your situation | Better fit | Why |
|---|---|---|
| Mostly flat sheet, occasional mug or tube | Flatbed with a rotary attachment | One machine, one operator, one maintenance routine |
| Mixed flat and round, roughly even split | Flatbed plus dedicated rotary cell | No fixture changeover between the two order types |
| Round parts only, taper or heavy blanks | Dedicated digital cylinder printer | Fixture range and taper compensation are the deciding specs |
| Very high volume single design | Screen, offset or gravure | Digital wins on changeover, not on millions of identical pieces |
The honest rule: digital rotary printing wins when the design changes often, when the run is short, or when personalisation is the product. When none of those is true, a conventional process is still cheaper per unit — and a hub that tells you otherwise is selling, not advising.
The five specs that decide whether a machine works for you
- Fixture range and chucking method. Minimum and maximum diameter, maximum length, maximum weight, and whether you need collets, cones, centres or vacuum.
- Taper compensation. Some parts are cones, not cylinders. Without it, straight-sided artwork prints skewed.
- Rotation-to-head synchronisation. This is what removes the visible seam at the start/end of the wrap.
- Curing dose at production speed. Ask for the lamp type, the dose and the surface speed at which the dose is still sufficient for your ink.
- Ink and primer system. Adhesion on glass, metal and untreated plastics is a chemistry problem before it is a machine problem.
Start with these guides
- What is a 360 Cylinder UV Printer?
- How do Cylindrical Inkjet Printers Work?
- How does Servo Synchronization Eliminate Overlap in 360 UV Cylinder Printing?
- How does UV Rotary Printing Achieve Seamless 360 on Cylinders?
- How does High Speed Rotary Motion Affect Ink Ejection Physics?
- Flatbed vs Cylinder Printer Choosing for a Mixed Order Book
- Digital Cylinder Printer ROI a Full Cost Per Print Breakdown
- How Much does a Digital Cylinder Printer Cost?
- How to Adjust UV Printing Workflow for Tapered vs Straight Cylinders?
- Tapered Cylinder Printing Solve Geometric Challenges Now
- How does A1mm Misalignment Ruin a Cylinder Print?
- How to Fix UV Printing Defects on Cylindrical Objects?
- How can White Ink Layering Create3d Textures on Cylindrical Prints?
- What are Best Cylinder Printing Materials?
- How can You Achieve Photo Quality Prints on Cylindrical Surfaces At 60 Items Per Hour?
- Why do Some Digital Cylinder Printers Fail on Real Production Runs?
- How to Print Tapered Cocktail Shakers At 60 Items Hour with UV Rotary?
- Digital Cylinder Printer 360 Innovation for Multi Object Printing
The four sections of this hub
- How digital cylinder printing works — rotation, stitching, printheads, curing, fixtures and the physics behind overlap lines.
- Choosing a digital cylinder printer — specifications, supplier questions, model comparisons, cost and ROI arithmetic.
- Applications and materials — drinkware, cosmetic tubes, cans, industrial rollers, glass, metal and plastics.
- Operation and defect fixes — setup, fixturing, artwork preparation, daily maintenance and the cures for misalignment and banding.
Frequently asked questions
What is a digital cylinder printer?
A digital cylinder printer is a UV inkjet machine that rotates a cylindrical or tapered part under a fixed printhead and cures the ink with UV light in the same pass. It prints directly from a file, so no plate, screen or sleeve has to be made for each design.
How is a digital cylinder printer different from a printing cylinder?
A printing cylinder is a roller used inside offset, flexo and gravure presses to carry an image onto paper or film. A digital cylinder printer is the machine that prints onto the outside of a three-dimensional cylindrical object. The two share a word, not a process, and they are bought for completely different reasons.
Can one machine print both flat and cylindrical parts?
A flatbed with a rotary attachment can do both, but the attachment changes the work envelope: rotation adds a fixturing step and limits the part diameter. If more than roughly a third of your order book is cylindrical, a dedicated rotary machine is usually the faster buy because changeover happens without swapping the bed.
What diameter and length can be printed?
It depends on the rotary fixture and the head-to-substrate gap, not on the print technology itself. Small-diameter drinkware, tubes and cans and large industrial rollers sit in different fixture classes, so confirm the fixture range, the maximum part weight and the taper compensation of the specific model before ordering.
What does a 360° print cost per part?
Cost per part is driven by ink coverage, print area, machine hourly rate and the reject rate from fixturing. A properly built cost model needs those four inputs rather than a single headline figure; the linked cost guide below walks through the arithmetic with worked assumptions.
Round parts, short runs, artwork that changes every week?
Talk to an Andresjet engineer about your application
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