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Fin Terminology

13670 Hwy 68 South
Kenton, Ohio 43326-9302
ph: 419.674.4152
fax: 419.674.4154 info@robfin.com

Plain Fin Terminology

Plain Round Crest Fin
Material: Aluminum • Thickness: 0.080
Height: 1.565 • FPI: 4
Flow Length: 13.785 • Cutoff: 6.843

Plain Flat Crest Fin
Material: Aluminum • Thickness: 0.020
Height: 2.000 • FPI: 8
Flow Length: 1.910 • Cutoff: 4.110

Plain Flat Crest Fin
Material: Copper • Thickness: 0.008
Height: 0.400 • FPI: 18
Flow Length: 1.900 • Cutoff: 3.595

Plain Fin Terminology

Plain Flat Crest Radial Fin
Material: Aluminum • Thickness: 0.010
Height: 1.000 • FPI: 18/4.500
Flow Length: 19.297• Cutoff: 4.805

Specifications

Material Thickness
From 0.002" to 0.080"

Fins per Inch (material dependent)
From 2 FPI to 86 FPI

Fin Height
From 0.020 to 4.000

Flow Length (Slit Width)
From 0.125 to 24.000

Cutoff Length (Flow Width)
Any specified length

Materials Used
Aluminum, Copper, Stainless Steel, Steel, Inconel, Others Available upon Request.

Plain Flat Crest Fin
Material: Aluminum • Thickness: 0.016
Height: 0.515 • FPI: 6.25
Flow Length: 4.853 • Cutoff: 2.325

Plain Flat Crest Radial Fin
Material: Aluminum • Thickness: 0.010
Height: 1.000 • FPI: 18/4.500
Flow Length: 19.297 • Cutoff: 4.805

To request a quote, or have any fin capability questions answered, please email Dave Haushalter at dave@robfin.com

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