Thermex Finned Heat Exchangers

Finned Tube Heat Exchangers are the latest addition to the range of high performance cooling products available from Thermex.

Traditionally, a heat exchanger tube stack would feature a number of tubes bundled together within a cylinder, with a few evenly spaced baffle plates. The difference with the finned tube stacks offered by Thermex is that in addition to this, fin plates are stacked along the length of the tube stack. The amount of fins used (or fin density) can be varied for different fluids, air and performance requirements, but in any case the user will benefit from an extra 400%* of surface area compared with the plain tube design. The clever fin design ensures that all of the fins are evenly spaced apart and that they form part of a rugged construction. *Calculation based on a “standard size” of marine charge air cooler.

Features of the Thermex Finned Tube Stack Heat Exchangers;

Fin Material

Thermex offer both Copper and Aluminium fins which are selected based on the operating environment.

Copper Fin Aluminium Fin

Fin Diameter

Thermex also offers 7 different fin diameter, creating an extensive range to meet the demands of most applications.

  • 101 mm
  • 126 mm
  • 152 mm
  • 171 mm
  • 192 mm
  • 205 mm
  • 259 mm

Fin Pitch

The distance between each fin can also be varied, this allows the engineers at Thermex to ensure maximum performance within pressure drop limitations.

  • 12 fpi
  • 15 fpi
  • 18 fpi
  • 22 fpi
  • 25 fpi
  • 30 fpi


The Thermex Finned Tube Stack range can be designed to allow for retro-fitting into existing machines and engines, with options for fixed-end tube plates and custom made housings. Contact Thermex to find out more about how finned tube stacks can benefit your business

 Thermex Finned Tube Stack

Make an enquiry;


Tel: +44 (0)1527 62210




Contact Us


+44 (0)1527 62210



Thermex Ltd

Merse Road

North Moons Moat

Redditch, Worcestershire

B98 9HL, U.K.

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