Gardner Denver Has Merged With Ingersoll Rand Industrial Segment

Compressors and Vacuum Pumps for Liquid and Gas OEM Systems

Thomas, a brand of Gardner Denver, has been meeting OEM compressor and pump needs for over 60 years.

operation principles

Vacuum pumps and systems for liquids and gases for OEMs worldwide

Thomas has over 60 years’ experience as a pioneering manufacturer of systems, compressors, vacuum pumps, liquid pumps and OEM pumps in the medical, laboratory, environmental and industrial sector.

With a wide range of pressure, vacuum and liquid technologies including WOB-L piston, articulated piston pumps, (miniature) diaphragm pumps, rotary vane pumps, linear pumps and peristaltic pumps, Thomas offers the broadest oil-less product range in the industry. With this vast product offering, Thomas designs ideal, customized pressure and vacuum pump solutions which meet our customers‘ precise needs.


Diaphragm Pump for Autoclaves

  • Chemical resistant
  • Quiet operation
  • High-end vacuum coupled with stable flow characteristics

Learn More


WOB-L piston pump for portable applications

  • Small, lightweight twin-cylinder pump
  • Long-life reliability
  • Low vibration and quiet operation

Learn More

Learn about everything you need for Liquid Handling in Diagnostic Applications

Reliability is vital in In-Vitro-Diagnostics, so pumps designed to ensure high-precision dosing are critical. Learn what matters most in this free whitepaper.

Download now
Thomas main page white paper