Perforation is an enhancement to ruffled or plain folded fins and maintains their standard specifications. Perforation allows for channel mixing and creates frontal boundary areas. Perforation is an alternative to a lanced offset folded fin, allowing for higher densities and taller fin heights than lanced offset.

Standard Perforation Open Areas

5.75%

11.50%

15.00%

Standard Hole Diameter

0.078

Custom perforation patterns are available. Please fill out the Quote Request Form