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MC20 Portable Compressor

Product Description

The MC-20 portable air compressor has been engineered and built for use in the harshest military applications. The smart design, durable undercarriage, efficient Hatz engine and time-tested airend result in a compressor you can rely upon no matter what the conditions.

Typical applications for the MC-20 include operation of pneumatic hand tools, munitions loaders and powered ventilation systems as well as tire inflating and paint spraying.

Output Performance of the MC-20 provides a continuous supply of air at 20 cfm (9.44 litres/sec.), 125 psig (862 kPA), adjustable from 0 to 150 psig (0-1034 kPA) and can be started and fully operational at temperatures from 0OF to 130OF (-18OC to 54.4OC) with no external assistance. An inlet heater is standard for conditions that require starting aids.

Multiple Fuels may be used to operate the diesel engine such as: JP-4, JP-5, JP-8, Jet “A”, Jet A-1, JP-8+100 and DL-2. Minimum run time is 8 hours.

Extensive Testing was completed in accordance with MIL-STD-810G for rain, salt, humidity, sand, dirt and fungus. The MC-20 will withstand 70 mile per hour winds and proved itself through exhaustive towing tests including paved, gravel and rough type roads to ensure long lasting performance under any conditions.

Designed for Ease of Use to MIL-STD-1472F, inspection and maintenance is simple even with the use of arctic mittens and Mission-Oriented Protective Posture (MOPP) Level 4 Chemical Warfare Gear.

Surface Preparation and Painting top coats in accordance with Fed-STD-595B and MIL-PRF-85285D meet current military requirements and have survived a 96 hour salt fog exposure test.

Mobility Features are designed to meet requirements of SAE AS8090, Type II, Group A and include two wheel running gear, a parking brake and heavy duty lunette coupler.

Packaging and Preservation in accordance with MIL-STD-129P can be performed to customer requirements. Tie down rings are provided near all 4 corners to MIL-HDBK-1791 and are clearly marked for securing quickly. The central lifting eye is built in accordance with MIL-STD-209K.

Technical Manual with detailed operation, maintenance and overhaul instructions with illustrated parts breakdown ships with each compressor.

Please contact Aviation Spares & Repairs Limited for more information on the MC20 Portable Compressor. We are here to help with all your GSE requirements.


Compact, Lightweight Package can easily be towed behind vehicles and can effortlessly be moved about by one person as well as fastened to a 463L pallet two at a time.

Easy Access for Servicing of all internal components is provided by a large hinged access panel with gas spring for easy lifting and a safety catch to prevent accidental closure.

Package Features include a top mounted instrument panel lighted for night operation and protected by a separate access door; an external, easy to fill, fuel tank with shut-off valve; a fuel/water separator, one 3/8 inch service valve; and a spring loaded hose reel containing 50 feet of 3/8 inch I.D. hose both with quick couplers and a check valve to prevent backflow.

Vibration is Minimized by the counterbalanced shaft design of the HATZ air cooled diesel engine and the use of rubber mounts to isolate the engine/airend assembly from the frame and enclosure. Flexible hoses between all components provide additional isolation and longevity.
Scheduled Maintenance is simple and requires no special tools to replace the engine oil strainer, fuel/water separator, compressor oil or engine and airend air filters.

Fully Protected Instrument Panel

  • Hour meter
  • Fuel level (on fuel tank)
  • Receiver pressure, service air pressure and engine oil pressure
  • Start-up controls – start-run valve, power on-off panel light and inlet heater control switches
  • Service air pressure valve and regulator

Safety Features

  • Minimum pressure device
  • Emergency stop button
  • Safety and automatic blowdown valve
  • Automatic engine shutdowns for low oil pressure, high engine temperature and high discharge air temperature

Additional Features

  • Air-to-oil finned tube oil cooler
  • Aftercooler
  • Rotary screw airend with an easy to view oil sight glass
  • Air receiver tank will allow the airend to blowdown at shutdown while still maintaining a ready source of compressed air



  • Free-Air Delivery: 20cfm (9.44 l/sec)
  • Rated Operating Pressure: 125 psig (8.6 bar)
  • Pressure Range: 0 – 150 psig (0 – 10.3 bar)
  • Air Discharge Outlet Size: 0.375” (9.5mm)
  • Air Discharge Outlet Quantity: 2
  • Fuel Tank Capacity: 5.7 gal (21.6 ltr)


  • Make: HATZ
  • Model: 1B50
  • Number of Cylinders: 1
  • Displacement: 31.5 in3 (0.5 ltr)
  • Rated Speed: 3000 rpm
  • Bhp @ Rated Speed: 10.3 bhp (7.6 kW)
  • Electrical: 12V


  • Length: 81.9” (2,081 mm)
  • Width: 53.6” (1,361 mm)
  • Height: 39.0” (991 mm)
  • Shipping Weight: 2,141 lbs (973 kg)
Description Features Specifications