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Polypack does not cut film - we perforate; we do not cut.
By eliminating the cutting process we greatly simplify film delivery, do away with film cutting assemblies, eliminate separated sheets of film, eliminate timing issues and eliminating the need for a vacuum belt delivery system.
Polypack can run light gauge films, even less than 1 mil!
Film is cradle mounted, on the side of the machine, at floor level.
The cradle’s rollers are motor driven. Film is advanced from the film cradle to the film delivery system. Polypack uses two synchronized servo motors to control film delivery. The servos control two sets of film feed rollers. These rollers feed the film, stopping and starting to control registration. Two sets of rollers, rather than one, are used to maximize both the registration’s accuracy and our control of the film.
The servo-controlled motors precisely index the film, and once positioned, a single perforation line is made between each repeat.
The perforation line is created with the film at rest, not on the fly, resulting in superior consistency and accuracy. By perforating the film, we use the film web to advance each and every repeat. The entire web of film is advanced right up to the wrapping station. The same servo-controlled rollers that deliver the film also separate the perforation. Separation takes place once the film has reached the wrapping station and not until after product has been positioned on top of the film's edge.
Polypack does not produce loose, separate film repeats and thus we never have to control and/or advance little lengths of separated film. As the flight bar advances product, a photo cell senses its presence and a film repeat is perforated. Film is applied to the product by the elliptical movement of the film applicator. It is this unique elliptical motion that allows us to further control the film and achieve more consistent wrapping results. The film applicator arm lifts and carries the body of each film repeat up, over and in front of advancing product. A mechanical linkage ties the film applicator to the flight bar.
Wrapping small and unsupported product is made possible by the small transfer distances between dead plates and the special conveyors that we use.
Product advancement through the wrapping station produces a film overlap beneath each product. Once wrapped, each product/film combination is transferred to the tunnel conveyor. The tunnel conveyor carries product through the integrated shrink tunnel where the overlap is fused and the film is shrunk.
Finished retail quality packages then exit the shrink tunnel and are discharged.
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Polypack’s CLEARPRINT machines can handle products that range in height between 2” and 14”!
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Changeovers can be performed in as little as 10 minutes!
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Adjustment of the repeat length is mechanical and repeatable.
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The film delivery system is very accessible - access is made without the use of tools!
CLEARPRINT machines monitor the operating temperature of not only the shrink tunnel but the tunnel conveyor as well. These machines have the ability to cool or heat both the tunnel and the tunnel conveyor to maximize the consistency of both the overlap and the shrink.
It is with great pride that we introduce our Clearprint machines. | 
Overview
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TANGO VIDEO
