Nuvair MCH36D Kubota

Nuvair’s flagship open horizontal, continuous-duty, commercial high-pressure compressor line utilizes the Coltri MCH36 pumping unit. The compressor can pump up to 27 SCFM (764 L/min) at 5000 psi (345 bar) when charging cylinders. The Coltri compressor block and Kubota diesel engine are mounted onto a steel base frame with vibration isolators, which is then placed into a powder-coated steel crash frame with belt guard.


Compressor Features

  • Four cylinder, four stage, air cooled
  • Visual CO / moisture indicator
  • Interstate pressure gauges
  • Two large interstage condensate separators
  • Large stainless steel interstage cooling tubes
  • Low-pressure oil pump with filter
  • Oil level sight gauge and oil pressure gauge
  • Automatic condensate drains
  • Low oil shutdown switch
  • High temperature wwitch
  • SEP-15 high-pressure moisture separator
  • Triple filter filtration (90,000 cu ft)
  • Powder-coated steel frame & belt guard
  • Vibration isolation frame mounts

Engine Features

  • Kubota D1803 diesel
  • Hayes bearing support block
  • Hour meter
  • Loadless start
  • Deep sea control indicates coil preheater, fault warning, oil pressure, high water temp, battery voltage and nominal speed


  • Water cooling [ More Information ]
  • Certified lifting eyes
  • Pro CO with audible alarm
  • Diester based lubricant
  • Moisture analyzer
  • Quad filtration (120,000 cu ft)


Model Nuvair MCH36D Kubota
Fill Time* Approx 3 min
Charging Rate* 27 SCFM (764 L/min)
CFM FAD 22.5 CFM (637 L/min)
Max Operating Pressure 5000 psi (345 bar)
RPM 1300
Number of Stages 4
Oil Pressure 5.8 to 58 psi (0.4 to 4 bar)
Air Quality Grade E
Engine Kubota D1803 Diesel, 37 hp (28 kW), 2400 RPM
(L x W x H)
64 x 44 x 42 in (163 x 112 x 107 cm)
Weight 1600 lb (726 kg)

*Based on 80 cu ft cylinder from 500 to 3000 psi.