Exair Vacuum Cup Selection:
To select a vacuum cup for your application, you need to know:
•The weight of the item being lifted
•If the item to be lifted is porous or non-porous.
•The safety factor
A safety factor of 2 is recommended when the vacuum cup is positioned horizontally.
A safety factor of 4 is recommended when the vacuum cup is positioned vertically.
Some companies or local codes may require a specific safety factor.