185 cfm Tier 4 Final air compressor

M55PE Mobilair Compressor

Kaeser's new M55 portable air compressor produces 185 cfm at 100 psig and features two large gull-wing doors made of roto-molded polyethylene (PE) allowing quick access to all components for easy servicing and also reduced noise levels. 

The steel chassis, torsion bar suspension, oversized tires, and lighting package ensure easy portability, safety, and excellent road handling, while the high capacity, cold start battery assures year round reliability. 

The combination of the Sigma Profile airend and the proven Kubota Tier 4 Final diesel engine delivers superior fuel economy and reliability. The on-board controller ensures reliable and efficient operations with touch button control making pressure adjustments simple and maintenance reminders and operating/service history alerts readily available to your service team. 

This unit is designed for heavy-duty civil and commercial construction, rental houses, demolition, sand blasting, and other site work applications as well as portable backup for stationary units.


Take a closer look at our 185 cfm air compressors

Standard features
Anti-Frost Control logo
  • Adjustable up to 125 psig
  • Energy efficient Sigma Profile airend produces more air with less horsepower 
  • Heavy-duty 3-cylinder Kubota diesel engine meets Tier 4 Final EPA emissions standards 
  • Sigma Control Smart electronic controller within the eye-level, curbside instrument panel with protective metal cover 
  • Extra-large 21 gallon fuel tank for up to 8 continuous hours of operation 
  • High capacity cold start battery ensures reliable operation 
  • Exclusive anti-frost valve maintains optimum operating temperature and prevents tool freeze up
  • 15" wheels for higher ground clearance and on/off road maneuverability and site handling
  • Lifting eye for easy transport and transfer
Optional features
Compressed air treatment
  • Aftercooler package 
  • 145 psig model 
  • Five year airend warranty
Technical specifications

For technical specifications, see the brochure below.