corona roller

Silicone rubber coated corona roller is a type of roller used in corona treatment processes for films. It is designed to enhance the surface properties of polymeric films, such as polyethylene films, by subjecting them to a corona discharge. The corona discharge helps improve the film's ink retention, coating adhesion, and printability.

Advantages of Silicone Rubber Coating:

Silicone rubber is a popular choice for Corona Rollers due to its relatively low cost and ease of replacement in the field.

It provides a smooth and uniform surface for the film to pass over during the corona treatment process.

Silicone rubber coatings have good dielectric properties, allowing for efficient corona discharge and treatment of the film.

Considerations for Silicone Rubber Coated Rollers:

While silicone rubber coatings are effective, they can be prone to wear and breakdown over time.

Ozone generated during the treatment process can react with the rubber material, leading to degradation and breakdown.

Rubber coatings may develop pinholes, which can result in spark-through or arcing.

Heat generated during the treatment process can also contribute to the deterioration of the rubber coating.

Corona Roller Production Crafts:

Shell construction: 2OS Double-shell from Q345B
Shrinked and welded shafts from Q345B
surface:Silicone rubber coated, hardness apprx 70HRC
Disks and shafts 2-layer painting RAL

Flow-system: Channels between inner and outer tube separated with welded leading  spirals

Except Corona Roller, We can also offer Chill Roller,casting roller,Preheater roller,Setting roller,Gravure Roller,Guide roller,Vacuum Suction Roller,Corona Nip roller,Contact roller,Carbon fiber floating roller, one-stop solution supplier for BOPP/BOPET Film, feel free to contact us .

Huatao series of compound are successfully used for Holography, Corona Treatment , Tape Plant, Poly coating, Garmex, M.D.O NIP roller for Film Plant, Epoxy Coating etc.