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Anti-deflection structure roller

Suppresses roller deflection to eliminate wrinkling of film and air traps


(1) Film processing failures caused by roller deflection

Normally, a deflection is generated from the ends where the rollers are supported to the center of the roller. This is caused by pressure from the materials such as film that is in contact with the roller as well as by its self-weight. And this deflection could cause uneven nip, resulting in various problems such as wrinkling of the film, entrainment of air, lamination failure, loose winding, etc.

(2) Uniform nip by Anti-deflection roller

The Anti-deflection roller has a special double-shell structure consisting of an outer shell and an inner shell. By positioning the support of the shaft and the outer shell from both ends to the center, uniform nips are applied to the rollers to prevent wrinkling and air entrainment.

Uniform nip by Anti-deflection roller

(3) Comparison of roller deflection

Comparison of roller deflection

(4) Comparison of nip shapes using Anti-deflection structure rollers (video)

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Katsura Roller Mfg. Co., Ltd.

5-3-13 Nakagawa Ikuno-ku
Osaka 544-0005 Japan
TEL +81-6-6751-1121
FAX +81-6-6754-4400