Round Tube Coils

We offer standard and custom solutions using round tube air cooled heat exchangers for a variety of applications. No matter if it’s a common application or complete custom, we treat each application independently so the heat exchanger is designed to fit the application. Round tube heat exchangers can handle pressures and temperatures from 300 psig @ 400 F and up. For most applications this pressure and temperature rating is more than sufficient, however for those applications that require higher pressure ratings such as a high pressure aftercooler or an application where the temperature is in excess of 400 F such as an oil cooler on a hot oil system we have a solution to meet your needs.

  • Standard Heat Exchangers
  • Custom Heat Exchangers
  • Plate Fin Coils

Standard features:

  • Pressure and Temperature ratings up to 300 psig @ up to 400 F.
  • Copper tube / Aluminum Fin construction with steel manifolds.
  • AC, DC, Hydraulic and Pneumatic motor drives available.

Industrial Applications

Mobile Applications

Compressed Air Cooling

FIN-X equipment is designed to withstand every type of operating condition, including onshore, offshore, arid and unusual climates.

Air coolers from FIN-X meet all ASME code requirements and can be built to API661 and applicable TEMA specifications. Our computer programming capability, quality construction and reliable production scheduling allow us to meet your most demanding performance requirements.

All FIN-X air cooled heat exchangers have the following

Standard features:
  • All steel construction
  • Angle base, mechanically-bonded aluminum fins on 1.0”, 0.75” or 0.625” OD tubes
  • Horizontal or vertical air intake and discharge
  • Electric or hydraulic motor or engine-driven fans
  • Balanced aluminum fans designed to reduce horsepower
  • Box-type headers with tube plugs
  • Inlet and outlet connections: flanged, threaded or stub-end
  • Mechanically hand-tool cleaned and full primer coat on headers and structural steel
  • Completely packaged, ready to mount.
Optional Features (upon request):
  • ASME code stamp, National Board number, Provincial CRN, ABS certification, or other special registration available
  • API661 construction
  • Radiographic, Ultrasonic, Mag-Particle, or other special inspections
  • Hot-Dipped galvanizing or other special coatings of structures and sections, including special coatings for finned tubes
  • Manual or automatic shutters
  • Galvanized hardware cloth or “soft” nylon bug screens
  • Hot air recirculation systems
  • Tubes of admiralty, stainless steel or other specialty metals
  • Stainless steel headers
  • Oil field type skid
  • Mounted surge tank
  • Special fan drive arrangements
  • Coils for natural convection or air duct mounting
  • Hydrotest charts, noise and vibration testing
  • Flushing oil sections
  • Special fin types available upon request
  • Field-erected units (field erection by others)
  • Header designs for special and/or severe applications

It is our experience and expertise in thermal and mechanical design, plus an equally talented work force of ASME welders and other craftsmen that assures your needs will be met.

Coils are used in many diverse applications, each having their own unique challenges. Plate or helical style of fin, as well as various tube patterns, allow our coils to easily adapt and meet such challenges.

Plate Fins – Each fin is cut from a sheet of flat material, and then punched in a specific pattern that accommodates all the coil tubes. This is similar to stacked sheets of ring binder notebook paper. Over 20 different combinations of tube sizes and center patterns are available.

Advantages of Plate Fin Coils
Low air friction Easy to clean/traps less dirt
Easy to apply coatings Tubes interlocked together
Better vibration/tube sag strength Wide fin spacing
Handle ice/frost build-up Tight fin-to-tube bond
Allows surface enhancements for increased
thermal performance
Hydrostatic leak test each tube (standard)

Plate fins are also available with optional surface enhancements.

  • Embossed
  • Corrugated Wave Pattern
  • Sine Wave Pattern

These surface enhancements create different air flow patterns, boosting the coils ability to transfer heat however they also create more air resistance. The key to the coil design is to balance the overall size, fin density, and fin enhancement to achieve the required duty with an acceptable friction loss across the fins that the fan or system can accommodate.

These fin styles and enhancements are available on our basic coil product lines and are also offered on many custom/specialized coils, depending on the tube size and materials required. All coils are pneumatically or hydraulically tested and are available with an ASME “UM” or “U” stamp when required.

With our experience and expertise we can design a coil ideal for your application. We can provide coils with round pipe headers or box tube headers with serviceable cores. We offer copper, carbon steel, and stainless tubes, fins and header materials, as well some exotic alloys. Common applications we service are: high and low pressure, oil coolers, aftercooler, intercooler, hydraulics, blowers, compressors, engines, water/glycol, condensers, evaporators, closed loop systems, and many more.

Have a coil that is beyond repair? Let us help you! We can offer mechanical/performance equivalent of your existing coil.

Click below for additional information or to fill out a request for quotation form.

Heat Exchanger Inquiry Form

    • Type Of Heat Exchanger



    • Thermal Requirements

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    • Physical Property Data

      For uncommon fluids only, physical properties at various temperatures and condensing curves must be provided







    • Construction Requirements Unsure of these form fields, please call us at 972.242.9600

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