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Mini-Fin Tubing

Miniature Finned Tubing
Miniature Finned Tubing

Celebrating 20+ Years Since 1993

Fin Tube Products, Inc. is a leader in the development and production of miniature finned tubing. Finned tubing can be supplied in sizes descending from 1/4" to a diameter as small as .015". Fin counts can reach up to 142 fins per inch on the hypodermic size tubing.

Fins are helically wound and then secured with a Soldered or FINBRAZE® fin to tube attachment. The miniature fin tubes are generally used for low temperature cryogenic, or biomedical applications. A typical cryogenic use would be a coiled heat exchanger supporting a Joule-Thomson port (J-T port).

FTP will work with customer engineers to develop prototype finned tube constructions for pilot evaluations.

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Tubing Outside Diameter
0.015" Min and up
Tubing Length
Varies with tube OD.
Number of Fins per Inch
To 142
Fin Height
Varies with tube OD.
Depending on Finbraze® or Soldered
  • Copper
  • Copper Nickel
  • Stainless
Industrial Served
  • Medical
  • Military
  • Aerospace
  • Cryogenic
Professional Associations
Cryogenic Society of America
Equipment List
Atmospheric Brazing Furnace
Multiple convertible lathes
Soldering Furnace
Stick, MIG, and TIG welders