Lantech QL-400 - Find the Correct Pre-stretch; What is Containment Force?

APPENDIX – HELP SCREENS
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8.4.4 Find the Correct Pre-stretch
Find the Correct Pre-stretch
The standard pre-stretch is 250%. This lets the operator use the highest film tension at the lowest cost
without film breaks.
• Pre-stretch kits, to a maximum of 300%, are available.
Note: With some premium films you can use a higher pre-stretch and hold the film tension without film
breaks.
Caution: An increase in the pre-stretch percentage lowers the film tension and can cause film breaks.
• Use a higher pre-stretch for light loads that can use lower film tension.
Use a lower pre-stretch for irregular or inboard loads that have frequent film breaks.
Note: An increase in the pre-stretch percentage lowers the film tension and can cause film breaks
8.4.5 What is Containment Force?
What is Containment Force
Containment Force is the number of layers of film x the film tension.
Containment Force holds the load together and is the best indicator for load shipment success.
Examples of Containment Force for a range of products:
Containment
Force Range
Low
These loads include:
• Paper Towels/Tissues
• Dust Cover Wrap
• Empty Containers
1- 2 kg
(2 - 5 lb)
Medium
These loads include:
• Short Case Goods
• Short Trays/Displays
• Beverage Cans/Light Order Pick
2 - 3 kg
(5 - 7 lb)
High
These loads include:
• Tall Heavy Cartons
• Cased Bottles/Bags
• Grocery Order Pick
3 - 5 kg
(7 - 12 lb).
Extreme
These loads include:
• Bottled Water
• Cased Bottles/Bags
• Other Heavy Loads
5 - 9 kg
(12 - 20 lb)
For the Profile to automatically hold the Containment Force:
• Set the Film Coverage mode to Protected by Load Guardian