MCH36D Kubota Diesel Compressor with Storage

Mounted to a four tank heavy-duty steel storage rack with a choice of air or nitrogen high-pressure storage cylinders, Nuvair’s flagship commercial grade compressor—the continuous-duty Coltri MCH36 pumping unit—delivers up to 27 SCFM at 6000 psi. The Coltri compressor block and Kubota diesel engine are mounted on a vibration-isolated steel base frame that is placed into a powder-coated steel crash frame with belt guard. The four tanks are split into two banks by a stainless steel distribution panel equipped with a high-pressure / high-pressure regulator for controlled pressure filling. The four-tank storage rack offers a combined storage capacity of up to 2042 cu ft (58 m³) of air.


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 switch
  • SEP-15 high pressure moisture separator
  • Triple filter air filtration (90,000 cu ft)
  • Powder-coated steel frame & belt guard
  • Vibration isolation frame mounts

Engine Features

  • Kubota D1803 diesel
  • Hayes bearing support block
  • Loadless start
  • Digital Engine Control Panel monitors and displays:
    - Engine oil pressure
    - Coolant temperature
    - Engine RPM
    - Engine hours
    - Battery voltage
    - Fault indication, and
    - Manual throttle control
    - Engine shuts down when safety switch activates


  • Water cooling [ More Information ]
  • Nuvair Pro CO Analyzer with audible alarm
  • Nuvair Pro H2O (moisture) Analzyer
  • Diester based lubricant
  • 6000 psi (414 bar) system upgrade
  • Quad air filtration (120,000 cu ft)
  • Choice of 4500, 5000, and 6000 psi air or nitrogen storage tanks


Model Nuvair MCH36D Diesel Kubota
Compressor with Storage Rack
Fill Time* ~3 minutes
Charging Rate* 27 SCFM (764 L/min)
CFM FAD 22.5 CFM (637 L/min)
Maximum Operating Pressure 5000 psi (345 bar)
RPM 1300
Number of Stages 4
Oil Pressure 5.8 to 58 psi (0.4 to 4 bar)
Gas Storage Capacity 1748 cu ft (49 m³) to 2042 cu ft (58 m³)
Air Quality Grade E
Engine Kubota D1803 Diesel, 37 hp (28 kW), 2400 RPM
(L x W x H)
64 × 44 × 56 in
(163 × 112 × 142 cm)
Weight Approximately 2500 lb (1134 kg)

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