Spare Parts

An anilox roller in a flexographic (flexo) printing machine is a crucial component that is responsible for transferring a precise amount of ink onto the printing plate. It is typically made of a metal core (often steel or aluminum) with a ceramic coating that features a pattern of tiny, uniform cells. These cells are etched or engraved into the surface, and their volume determines how much ink is picked up and transferred during the printing process.

Anilox Roller of Flexo Printing Machine for Food Packaging

Here’s a breakdown of how it works:

Ink Transfer: The anilox roller is submerged or dipped into an ink reservoir (also called an ink pan), where it picks up ink in the microscopic cells on its surface.

Ink Reservoir of Flexo Press for Food Packaging

Ink Metering: As the roller rotates, it contacts a doctor blade, which wipes off excess ink from the surface, ensuring only the ink within the cells is left on the roller.

Doctor Blade of Flexographic Printing Machine for Paper Cup

Ink Delivery: The anilox roller then transfers the ink onto the printing plate, which is in contact with the substrate (e. g. , paper, film). The plate then transfers the ink onto the substrate during the printing process.

Printing Plate of Flexo Printing Press for Sterilization Pouches

The cell volume (measured in cubic centimeters per square inch, or cm³/in²) and the cell pattern on the anilox roller are key factors in determining the ink transfer and quality of the printed image. A higher cell volume will deliver more ink, while a finer pattern may offer better print resolution and finer details.

The anilox roller is essential for achieving consistent ink application, color accuracy, and high-quality prints in flexographic printing.

Anilox Roller of Flexo Press for Shopping Paper Bag

Mengji always provide quick and good service to our macine user. You just need send machine nameplate to our after sales service team. If you want Mengji help you make anilox roller for other brand flexo printing machine, please offer below information.

1. Printing Machine Type and Model

Flexo press model: Some machines are designed to work with specific anilox roller types. Let the supplier know the make and model of your press (e. g. , 8-color flexo press, inline or stack-type).

2. Printing Application/Job Type

Substrate type: Are you printing on paper, film, foil, corrugated material, etc. ? The substrate's texture and type influence the choice of the anilox roller.

Ink type: Specify whether you're using water-based, UV, or solvent inks, as this can affect the roller's construction and coating.

Print quality: Are you aiming for fine details or just high-volume, solid color printing? The ink transfer requirements may vary based on this.

Anilox Roller of Flexo Press for Hamburger Wrappping Paper

3. Cell Pattern and Volume

Cell count (LPI - lines per inch): This refers to how fine or coarse the cell pattern is. A higher LPI is for finer, more detailed prints, while lower LPI is for heavier ink applications.

Cell volume (BCM - billion cubic microns): This indicates how much ink the roller can carry. It’s essential to match the roller’s volume to your ink usage requirements. Higher BCM is used for solid coverage or heavy ink films, while lower BCM is used for fine line work or process printing.

4. Roller Size (Diameter and Length)

Diameter: The diameter of the roller should match the specifications for your printing machine. It's usually listed in inches or millimeters.

Length: Ensure the length of the roller is suitable for your press width and configuration.

5. Coating and Material

Ceramic coating: Most anilox rollers are ceramic-coated for durability and to ensure even ink distribution. If you need a specific coating (e. g. , chrome or laser-welded ceramic), specify that.

Core material: Usually made of aluminum or steel, but it can vary depending on the weight and rigidity requirements of your machine.

Anilox Roller of Flexo Printing Machine for Perfume Cosmetic Packaging

6. Engraving Method

Laser-engraved or mechanically engraved: Laser-engraved rollers offer higher precision and more consistent ink distribution, especially for fine details.

Engraving depth: The depth of the engraving affects the roller’s ability to hold and release ink, so this should align with the print application.

7. Printing Speed

If you’re printing at high speeds, you may need a roller that can withstand higher pressure and wear. High-speed printing may require specific features, such as durability and a consistent ink transfer rate.

8. Anilox Roller Condition (if replacing an old one)

Roller wear and tear: If you're replacing an old roller, mention its current condition (e. g. , worn cells, uneven ink transfer) to help the supplier suggest a suitable replacement.