How to choose the anilox roller correctly?
2024-05-16

anilox roller for flexo and lable printing.jpg

The industries of flexible packaging, labels, and corrugated paper evolve daily in response to the changing dynamics of the business environment.


In the printing machine market, anilox rollers play a crucial role, often considered the heart of printing presses. The correct selection of screen count (lpi) and volume is key to achieving the desired 

quality and consistency in the final printed product. However, this is only part of the story.


The choice of lpi and volume also determines the expected lifespan of anilox rollers. Additionally, the cleaning frequency of these rollers directly impacts costs.


Advancements in laser technology for ceramic anilox rollers allow for a wider range of alternative solutions and volume combinations than ever before. Technologies such as multi-hit engraving, 

higher screen capacities, new cell configurations, and S-shaped cells have surpassed traditional standards. In recent years, printing machines in the WW and NW markets are adopting rapid anilox 

roller change systems, utilizing sleeve technology or rollers made from special materials like aluminum or carbon fiber.


Laser-engraved ceramic anilox rollers, as continually improving components, play a critical role as well. Multi-hit engraving technologies produce highly consistent anilox rollers with smoother walls, 

flatter bottoms, and higher cell surface clarity. This enables better ink release, more consistent cell volumes, fewer dot gain issues, improved ink distribution, and reduced doctor blade wear.


All of these developments provide machine operators with a surprising array of choices, no longer restricted to specific screen and volume combinations but able to order custom anilox rollers 

tailored to the specific needs of their machines.


Today's anilox rollers are more consistent, easier to clean, have longer lifespans, and greater wear resistance than ever before. However, they can also be higher maintenance, as ceramic anilox 

rollers require more frequent cleaning. Additionally, if engraving technologies reach their limits with high volumes or high screen counts, resulting in thinner, weaker cell walls and deeper 

engravings, this can shorten their lifespan.


The correct selection of anilox roller engraving depends on several factors, such as the type of plates being printed, screen count (lpi), ink strength, and substrate, among others.