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Industrial
shrink wrap protects products and keeps them together during shipping.
Shrink-wrap film is a plastic that
shrinks when heated and conforms to the product’s shape to protect it
from moisture, dirt, and damage during transport. Different types of
shrink-wrap film and machines are available for many different needs and
applications.
Small portable shrink-wrap machines are used by artists to protect their
work and give their paintings a professional look. Small shrink-wrap
machines start around $200. Larger, more expensive, electronic
shrink-wrap machines are used to seal countless items, such as boxes,
CDs, letters, linens, and videogames, either individually or collated in
bulk. Shrink-wrap machines that process hundreds of items an hour can
cost up to $35,000.
The type of shrink-wrap system needed depends on the size of the item to
be shrink wrapped, the number of items, and how fast they need to be
wrapped. Some machines are especially designed to package small items
like CDs, while other machines are built to package large boxes. Some
machines can package only a few items an hour, while others can package
hundreds. The larger, faster machines often must be installed
permanently, whereas the smaller and slower machines can be easily moved
and used on any surface.
Shrink-wrap sealers come in several different types. A straight-bar
sealer is used to seal CDs, videotapes, and DVDs. A heat gun is used to
shrink the film. This method is used when only a few items need to be
processed per hour.
An L-bar sealer uses polyolefin film and seals and cuts the film in one
movement. Electricity, rather than heat, cuts the plastic, so no smoke
is produced.
A continuous band sealer seals packages continuously. They are useful
for containing items that can be spilled easily.
A sleeve wrapper can handle many different shapes of packages.
A mail bagging system can organize and pack several boxes at once.
A vacuum sealer removes the air from a package before sealing it. The
package then goes through a heat tunnel to shrink the film.
The film can be shrunk with a handheld heat gun or sent through a heat
tunnel on a conveyor belt.
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