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Service Center & Aftermarket

Full service and aftermarket capability for all Chart owned brands. Dedicated to keeping you online and productive. We respond to your needs promptly and efficiently.


Air Cooled Heat Exchangers

An air cooled heat exchanger (air cooler) removes heat from a liquid or gas into ambient air.

how does an air cooled heat exchanger work

Chart provides horizontal, vertical and multiple fan coolers with both forced and induced draft.

Harsco multi-fan air cooled heat exchanger

Complete range of options including winterization, maintenance and header walkways, ladders, bugscreens, louvers, heating coils and warm air recirculation.

winterization of an air cooled heat exchanger work


Through our brands, Chart boasts a rich heritage of innovation and continuous improvement with hundreds of patented designs and thousands of products hard at work in plants around the globe.

  • Natural gas processing
  • Natural gas compression
  • Natural gas transmission
  • LNG
  • Refinery and petrochemical
  • Power generation

Superior Design & Engineering

Combined expertise and best practice, leading edge design and a fully streamlined system for maximum accuracy and responsiveness from quotation to delivery.

  • In-house proprietary software
  • AspenOne
  • HTRI
  • RISA 3-D structural analysis
  • Finite element analysis

Technical Library

We provide a range of resources for all our brands including brochures, model data sheets and technical papers.

Hudson Products

Leading Edge Products - Hudson Products' brochure

API Standard 661 - 5th Edition/ISO 13706

API-661-6th-Edition-ISO 13706 (Second) - Summary of Changes

Consider Variable Pitch Fans

Fin Fan® Air Cooled Heat Exchangers - Life Cycle Costs

High Torque Drive (H.T.D.)

Hot Air Recirculation by Air Coolers

Improving Cooling Tower Fan System

Minimizing Fan Energy Costs - Parts 1 and 2

Noise Control Air-Cooled Heat Exchangers

Performance Improvement Air-Cooled Heat Exchangers

Specify the right fin type for air-cooled heat exchangers

Basics of Air-Cooled Heat Exchangers

Basics of Axial Flow Fans

The Cost of Noise

Design of Quiet Air-Cooled Heat Exchangers

Air-Cooled Heat Exchangers

Air Flow Testing Procedure

Extruded aluminum finned tube benefits


Gulf Coast Customer Service

Hudson Combin-Aire® Air Cooled Heat Exchanger

Combin-Aire air cooled heat exchangers combine humidified inlet air cooling with standard Fin-Fan technology for hot arid locations where availability of cooling water is limited.


Onsite Training Trailer

Air Cooled Heat Exchangers for Gas Compression

Models with specifications for our Air-X-Changers and Cooler Service Company brands serving the gas compression market.

Basics of ACHEs software

Auto-Variable® Hub Maintenance

Fan Blade Installation

Tip Seal Installation

Air-X-Changers Model Data Sheets

Self-Aligning Shaft Bearings

Model EH is the world's most widely used engine driven cooler

This compact, unitized cooler combines engine and compressor cooling in a single unit. It is designed to deliver unrivalled performance and durability in the compressed natural gas industry.

Our excellence is recognized around the world

Hudson is responsible for pioneering many industry developments and trademarks, such as Fin-Fan®, Tuf-Lite® and Hy-Fin® that are recognized around the world.

World class manufacturing in Texas

World's largest air cooler engineering and manufacturing facility in Beasley, TX. Conveniently located 35 miles southwest of Houston, TX. Engineering in Tulsa, OK and an additional service and site crew mobilization center in Franklin, IN.

Developing clean energy solutions

Chart is also at the forefront of developing air cooled heat exchanger solutions for Direct Air Carbon Capture, which is an exciting clean energy application.

Comprehensive After-Sales - total supply for all brands

air cooled heat exchanger service

  • New or replacement units
  • Choose according to your preferred brand or allow our engineers to configure the optimum solution according to your specification
  • Bundle Configuration – horizontal / vertical / sloped
  • Fan Configuration – horizontal / vertical
  • Draft Type – forced / induced
  • Temperature Control - variable speed fans / variable pitch fans / air recirculation / louvers
  • Construction – shop or field
  • Fan drive – engine or electric
  • Proprietary winterization designs
  • Solutions for low ambient temperatures
  • Solutions for viscous or high pour-point fluids
  • Ultra-high pressure serpentine coil design



Since 1954 the Air-X-Changers brand has been renowned in the upstream and natural gas compression markets for innovative design and manufacture of durable air cooled heat exchangers backed by first class customer support. Chart acquired Air-X-Changers and Hammco in 2019 and we are proud to continue their traditions.


Connect with Chart

For sales and technical support, application advice, to access our extensive aftermarket services or discuss your air cooled heat exchanger requirements, connect with a specialist by calling us direct or click the 'Contact Us' button, complete a short form and we'll be in touch.

Air-X-Changers, Hammco, Cooler Service Company  +1 918 619 8028

Hudson Products  +1 800 634 9160

Hudson Service (Aftermarket)  +1 281 396 8342

Smithco  +1 918 446 4406