The HP750WCU and XP825WCU are Tier 4-Final-compliant large air compressors powered by a Cummins QSB6.7 Tier 4 Final engine.
Electric-driven VP900e portable air compressor replaces the typical diesel engine on the air compressor with three onboard electric motors that are controlled by a variable frequency drive (VFD) system—one airend motor and two cooling fan motors— each sized specifically for their dedicated function.
Doosan has taken its P185 and C185 air compressors to Tier 4-Final, along with its G240WCU generator.
VMAC's Raptair Diesel Drive Stand-Alone air compressor is now available in a Mining Safety and Health Administration (MHSA)-approved version.
CPS 185 JD Tier 4-Interim 185 cfm portable air compressor is equipped with a water-cooled, 49-horsepower, four-cylinder John Deere engine.