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Performance that's in it for the long haul

Our large compressors are designed for continuous operation so they can deliver top-quality compressed air with maximum availability. With state-of-the-art motor and control technologies, these compressors are extremely economical and environmentally-friendly to run, either as stand-alone units or grouped together:
  • Maximum pressures up to 205 psig
  • Optional compressed air treatment package
  • Towable and stationary design options
  • Optional refinery accessories
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Unit of Measure
Items
Up to 600 Cubic Feet Per Minute (cfm) Flow Rate Tow Behind Compressors

Mobilair™ M118 Model 114 Horsepower (hp) Power at Full Load Tow Behind Compressor
List Price QUOTE
Mobilair™ M125 Model Tow Behind Compressor

Mobilair™ M125 Model 121 Horsepower (hp) Power at Full Load Tow Behind Compressor
List Price QUOTE
Mobilair™ M171 Model Tow Behind Compressor

Mobilair™ M171 Model 145 Horsepower (hp) Power at Full Load Tow Behind Compressor
List Price QUOTE
Description N/A Versatile
The Mobilair™ M118 portable rotary screw compressor is built for many applications including sand-blasting, pavement breaking, and general air tool use. Units are also well suited for rental houses, repair trucks, and railroads. 		N/A Versatile
The Mobilair™ M125 portable rotary screw compressor is built for many applications including sand-blasting, pavement breaking, and general air tool use. Units are also well suited for rental houses, repair trucks, and railroads. 		N/A Versatile
The Mobilair™ M171 portable screw compressor is designed for heavy-duty civil and commercial construction, demolition, sand blasting, and other site work applications. The M171 delivers 600 cfm with variable pressure from 85 to 125 psig. A high pressure option is variable from 145 to 205 psig.
Model N/A M118 N/A M125 N/A M171
Advantages N/A
  • Environmentally-friendly:
    Advanced Deutz diesel engine with SCR catalytic converter meets Tier 4 emission standards
  • Power-saving fan:
    Demand-based variable speed fan with Visco clutch generates up to 5% fuel savings.
Brands N/A Kaeser Compressors
Free Air Delivery at 100 Pounds Per Square Inch Gauge (psig) Pressure N/A 405 cfm N/A 405 cfm N/A
Free Air Delivery at 125 Pounds Per Square Inch Gauge (psig) Pressure1 N/A N/A N/A 600 cfm
Free Air Delivery at 145 Pounds Per Square Inch Gauge (psig) Pressure N/A 360 cfm N/A 405 cfm N/A 550 cfm
Note for Free Air Delivery at 145 Pounds Per Square Inch Gauge (psig) Pressure N/A N/A N/A High Pressure Model
Free Air Delivery at 175 Pounds Per Square Inch Gauge (psig) Pressure N/A N/A 380 cfm N/A 475 cfm
Note for Free Air Delivery at 175 Pounds Per Square Inch Gauge (psig) Pressure N/A N/A N/A High Pressure Model
Free Air Delivery at 205 Pounds Per Square Inch Gauge (psig) Pressure N/A N/A 342 cfm N/A 405 cfm
Note for Free Air Delivery at 205 Pounds Per Square Inch Gauge (psig) Pressure N/A N/A N/A High Pressure Model
Make N/A Deutz 3.6L4 Tier 4 Final N/A Deutz TCD 4.1.L04 N/A Deutz TCD 6.1.L06
Note for Make N/A N/A N/A Engine is Tier 4 Final
Power at Full Load N/A 114 hp N/A 121 hp N/A 145 hp
Full Load Speed N/A 2050 to 2200 rpm N/A 2200 rpm N/A 1800 to 1450 rpm
Off Load Running Speed N/A 1600 rpm N/A 1500 rpm N/A 1300 rpm
Fuel Tank Capacity N/A 45 gal N/A 45 gal N/A 53 gal
Weight N/A 4462 lb N/A 4580 lb N/A 6278 lb
Outlets N/A 1 x 1-1/2 in3 x 3/4 in N/A 1 x 1-1/2 in3 x 3/4 in N/A 1 x 2 in3 x 3/4 in
Length2 N/A 188 in N/A 188 in N/A 201 in
Width N/A 74 in N/A 74 in N/A 82 in
Height N/A 68 in N/A 68 in N/A 71 in
Maximum Sound Level at 23 Feet (ft) N/A 76 dBA
Flow Rate N/A 405 cfm N/A 342 to 405 cfm N/A
Working Pressure N/A 145 psig N/A 100 to 145 psig N/A
Optional Airend Warranty N/A 5 years
Low Life Cycle Costs N/A Our comprehensive approach to life cycle cost management: Superior efficiency, easy operation, service-friendliness, and a global service and consulting network with fast response times.
Sigma Control Mobil™ N/A Advanced compressor controller technology
  • By accessing electronic motor management, the Sigma Control Mobil™ system optimizes compressed air availability and fuel efficiency. The system is shock and vibration proof per IP 65 electrical protection.
  • Its functions include operational monitoring as well as precise system diagnostics.
Timesaving user-friendly operation
  • The highly intuitive interface only needs three buttons to operate the entire system.
  • In addition, the automatic monitoring feature can shut the compressor down as required.
Precise pressure settings save fuel
  • Using the arrow keys, system pressure can be precisely adjusted in 1.5 psig increments on the Sigma Control Mobil™'s display.
  • This not only enhances flexibility but, in combination with the electronic inlet valve control, enables significant energy savings-especially for part load operation.
Standard Features N/A
  • Sigma Profile airend produces more air with less fuel consumption.
  • Heavy duty diesel engine complies with Final Tier 4 emissions standards.
  • Sigma Control Mobil™ integrated controller.
  • Modulation control with variable pressure up to 145 psig.
  • Heavy duty steel chassis and fully galvanized canopy.
  • High capacity cold start battery ensures reliable operation even under extreme working conditions.
  • Highly efficient cooling system.
  • 1 micron, 2-stage compressor inlet filter with maintenance indicator.
  • 10 micron engine air filter with maintenance indicator.
  • Lifting eye for simple handlin.
 		N/A
  • Rotary screw airend: Sigma Profile produces more air with less fuel consumption
  • Heavy duty steel chassis
  • Fully galvanized canopy
  • 1 micron, 2-stage compressor inlet filter with maintenance indicator
  • Sigma Control Mobil™ integrated controller
  • 10 micron engine air filter with maintenance indicator
  • High capacity cold start battery ensures reliable operation even under extreme working conditions
  • Heavy duty diesel engine complies with Final Tier 4 emissions standards
  • Tool boxes for convenient storage
  • Lifting eye for simple handling
  • Highly efficient cooling system
  • Modulation control.
 		N/A
  • Heavy-duty diesel enginecomplies with Final Tier 4 emissions standards
  • Rotary screw airend: SigmaProfile produces more air withless fuel consumption
  • Sigma Control Mobil™ integratedcontroller
  • Variable pressure control from85 to 125 psig
  • Heavy duty steel chassis
  • Fully galvanized canopy
  • 1 micron, 2-stage compressorinlet filter with maintenanceindicator
  • 10 micron engine air filter withmaintenance indicator
  • High capacity cold start batteryensures reliable operationeven under extreme workingconditions
  • Lifting eye for simple handling
  • Highly efficient cooling system
  • Modulation control
Optional Features N/A
  • Pressures to 145 psig
  • Aftercooler and filtration packages
  • Skid moun
  • Loading options
    Recessed lifting eyes and forklift pockets make loading easy.
  • Stationary versions
    A robust skid provides a stable base for safe outdoor installation.
    The stationary version can be fitted with adjustable machine feet for indoor installation.
  • Sealed floor pan
    The sealed floor pan captures liquids to prevent potential soil contamination.
    The drainage holes are sealed with screwed sealing plugs.
  • Refinery use
    A certified spark arrestor is available for refinery applications.
    The engine shut-off valve automatically shuts the unit down upon intake of combustible gases.
 		N/A
  • Pressures to 205 psig
  • Aftercooler and filtration packages
  • Skid moun
  • Loading options
    Recessed lifting eyes and forklift pockets make loading easy.
  • Stationary versions
    A robust skid provides a stable base for safe outdoor installation.
    The stationary version can be fitted with adjustable machine feet for indoor installation.
  • Sealed floor pan
    The sealed floor pan captures liquids to prevent potential soil contamination.
    The drainage holes are sealed with screwed sealing plugs.
  • Refinery use
    A certified spark arrestor is available for refinery applications.
    The engine shut-off valve automatically shuts the unit down upon intake of combustible gases.
 		N/A
  • Variable high pressure controlfrom 145 psig to 205 psig
  • Aftercooler and filtrationpackages
  • Skid mount
  • Five year airend warranty
  • Loading options
    Recessed lifting eyes and forklift pockets make loading easy.
  • Stationary versions
    A robust skid provides a stable base for safe outdoor installation.
    The stationary version can be fitted with adjustable machine feet for indoor installation.
  • Sealed floor pan
    The sealed floor pan captures liquids to prevent potential soil contamination.
    The drainage holes are sealed with screwed sealing plugs.
  • Refinery use
    A certified spark arrestor is available for refinery applications.
    The engine shut-off valve automatically shuts the unit down upon intake of combustible gases.
Features and Benefits N/A Sigma Control Mobil™
In addition to basic operation and fluid level indicators, our advanced controller provides service reminders and stores maintenance and operations history for diagnostics and troubleshooting. A hinged cover protects the panel from sun, debris, and moisture.

Variable pressure control
To meet the needs of different uses like powering breakers, blowing cable, and even higher pressure applications like sand blasting, pressure can be adjusted between 87 and 145 psig. 		N/A Sigma Control Mobil™
Easy to operate, integrated controller is well protected and allows for quick pressure adjustments.

Variable pressure control
The onboard Sigma Control Mobil enables variable pressure settings to tackle the different pressures needed for powering breakers, cable blowing, and even high pressure applications like drilling. Standard models can be set from 85 to 125 psig. High pressure models offer 145 to 205 psig. 		N/A Sigma Control Mobil™
Easy to operate, integrated controller is well protected and allows for quick pressure adjustments.

Variable pressure control
The onboard Sigma Control Mobil controller enables variable pressure ranges between 85 and 205 psig to tackle the different pressures needed for powering breakers, cable blowing, and even high pressure applications like drilling.
Additional Information N/A Packaged with features
The M118 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. The convenient lifting eye and adjustable height tow hitch enable secure transport. A torsion bar suspension system and oversized tires provide superior road handling, further adding to the unit's exceptional functionality.

Unsurpassed durability
The M118'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, airend, and critical components from dirt, water, and other contaminants. Rugged construction and excellent cooling allow the M118 to operate in temperatures up to 113 ºF.

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.

Optional 5 year warranty
To protect your investment, all of our Mobilair compressors are available with an optional 5 year warranty on the compressor airend. 		N/A Packaged with features
The M125 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 M125 easy. A torsion bar suspension system and oversized tires provide superior road handling, further adding to the unit’s exceptional functionality.

Unsurpassed durability
The M125'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, airend, and critical components from dirt, water, and other contaminants. Rugged construction and excellent cooling allow the M125 to operate in temperatures up to 122 ºF.

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

Optional 5 year warranty
To protect your investment, all of our Mobilair compressors are available with an optional 5 year warranty on the compressor airend. 		N/A 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 oversized 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, airend, and critical components from dirt, water, and other contaminants. Rugged construction and excellent cooling allow the M171 to operate in temperatures up to 122 ºF.

Low noiseA quiet motor, superior soundproofing, and vibration isolation result in smooth operation and extremely low decibel levels. 76 db(A) maximum at 23 feet.
Note N/A Specifications subject to change without notice.
  • 1 Standard Pressure
  • 2 Length includes tow bar.
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