More rigid “fingers” prevent the film from wrapping around the pinch
rollers to reduce dog ears and missed cuts. Larger diameter pinch
rollers increase tread life. Increased vacuum in the film bed through
the belts as well as increased vacuum points in the belts also improve
performance and reliability. The addition of an inline servo knife
allows the systems to cut at any speed, rather than the limited speed
ranges permitted by the older wrap spring clutch style. These new
features allow for a wide variety of product range capabilities.
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