- The ARPAC machine may automatically collate individual items (bottles, cans, cartons, jars, etc.). The resulting collated multipack is then ready to be wrapped unsupported, pad-supported or tray-supported.
- The collated product is loosely enveloped in shrink film.
- The wrapped bundles then pass through a heated shrink tunnel, causing the film to shrink tightly and neatly around the pack
- The shrink wrapped products exit the
shrink tunnel, cool and they are ready for handling.
Two-Roll Seal Bar
Two rolls of flat film are mounted on the machine; one above and one below.
The ends are welded together to form a curtain. As the package moves through
the curtain, the sealbars close behind the package and form a sleeve. The
sealbar cuts/separates the sleeve and reforms the curtain for the next package.
Bottom Overlap
A single roll of film is mounted on the machine, which then metes out the proper length needed to wrap the package. As the package touches the front end of the cut film, a flightbar lifts the back end of the cut film and carries it over the top, tucking the trailing edge underneath the package. The wrapped package then passes into the heated shrink tunnel.
Horizontal Wrapping / Form-Fill-Seal
A single roll of shrink film is mounted on the machine and the film is formed
around a forming "plow" or mandrel. During the wrapping process
the product is fed through the forming plow. The front end of the package
pulls the film along as it emerges from the forming "plow," thus
creating a tube. The front and back of the tube are both sealed and the wrapped
product then passes into the heated shrink tunnel.
NOTE: Machinery which uses this method of wrapping is located in the horizontal
wrapping category.
To see how ARPAC can
make shrink wrapping work for you, see the Industries
Served section.