Width X Length X Gauge ÷ 15 = pounds per 1,000 packages
Example: a bag 22" X 29" X 3 mils would weigh 127.6 pounds per 1,000
22 X 29 X 3 ÷ 15 = 127.6 # per 1,000 packages
Shrink Wrapping Cases
If you are shrink wrapping cases, you are a converter. You buy film by the pound and cut it off into sleeves before it goes into the shrink tunnel. If you buy 22” X 3 mil sheeting and have one ply on top & bottom, for practical purposes, you are making a bag. Using the above example, your bags weigh 127.6 pounds per 1,000 packages. Multiply the weight per 1,000 packages by the price per pound to derive the cost per 1,000 cases.
If you cutoff one sheet at a time - simple. Just imagine a bag by folding either the width or length of the cutoff so there are two plys.
Example: 22" wide
3 mil
37” cutoff
½ of 22" = 11" X 37" X 3 ÷ 15 = 81.4 # per 1,000
Equally correct:
½ of 37"= 18.5" X 22" X 3 ÷ 15 = 81.4 # / 1,000
Form / Fill / Seal
Divide the web width in half X cutoff X gauge ÷ 15 = # / 1,000 cutoffs
Example: 16.25" wide film
11.5" cutoff
2.2 mil
16.25" X 11.5" X 2.2 ÷ 15 = 13.70 # per 1,000 cutoffs
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Weight per 1,000 Packages Calculator:
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Weight per 1,000 Cutoffs Calculator:
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