The Mobilair™ M171 portable rotary screw compressor delivers 405 to 600 cfm at pressures from 85 to 205 psig and is designed for heavy-duty civil and commercial construction, demolition,sand blasting, and other site work applications

Packaged with features: The M171 offers an array of features that make it very user-friendly. Units come standard with an easy to read control panel that is well protected. The fuel tank has a large filler neck with overflow protection for safe, easy filling. A hitch and rigid tow bar also make transporting the M171 easy. A torsion bar suspension system and over sized tires provide superior road handling, further adding to the unit’s exceptional functionality.

Unsurpassed durability: The M171’s heavy duty steel chassis and fully galvanized canopy ensure long life even when subjected to the harshest conditions. Both the canopy and solid steel flooring protect the motor, air end,and critical components from dirt, water, and other contaminants. Rugged construction and excellent cooling allow the M171 to operate in temperatures up to 122°F.

Low noise: A quiet motor, superior soundproofing, and vibration isolation result in smooth operation and extremely low decibel levels. 76 db(A) maximum at 23 feet.

Unit of Measure


Engine Make & Model

N/A Duetz TCD 6.1.L06

Engine Nominal Power

N/A 145 hp

Engine Nominal Speed

N/A 1800 rpm

Engine Off Load Speed

N/A 1300 rpm

Working Pressure

N/A 125 psig

Fuel Type

N/A Diesel

Type of Drive

N/A Gear

Cooling System Available

N/A Liquid

Fuel Tank Capacity

N/A 53 gallon

EPA Noise Level Data

N/A 76 db(A) @ 7 m

Free Air Delivery

N/A 600 cfm

Shipping Weight

N/A 5942 lbs

Optional Features

Optional Features

N/A Tools, hose reels, skid mount