MOBILAIR M 50
Portable Compressor
With the world-renowned SIGMA PROFILE
Flow rate 5.0 m³/min (180 cfm)
www.kaeser.com
    MOBILAIR M 50
                                                            ®
    The perfect energy-saving combination: Kubota engine with a KAESER rotary screw airend
    The cornerstone of the M 50’s exceptional performance is a low-speed, energy-saving rotary screw airend from KAESER
    featuring SIGMA PROFILE rotors, which is connected to a water-cooled, 4-cylinder Kubota diesel engine via 1:1 direct drive
    – reliably eliminating the transmission losses associated with other types of drive system.
    Maximum versatility                                              Lightweight
    The MOBILAIR M 50 is the ideal choice for powering               Powerful does not automatically mean heavy; with a low
    equipment such as air hammers and impact moles. Dura-            operating weight of under 750 kg, the M 50 sets new
    ble construction and premium-quality components ensure           standards in terms of its power-to-weight ratio, making
    trouble-free operation in ambient temperatures ranging           it incredibly simple to manoeuvre and transport. More-
    from -10 °C to +50 °C. A low-temperature version is also         over, its 80-litre fuel capacity ensures more than enough
    available for use in colder conditions. Versatility is further   diesel is available to last for an entire work shift, including
    enhanced by the chassis, which can be equipped with or           on versions equipped with the optional compressed air
    without an overrun brake and is available with a fixed or        aftercooler.
    height-adjustable tow bar. All stationary versions feature
    a metal enclosure and can be mounted either on skids or
    machine feet.                                                    Separate air filters for engine and compressor
                                                                     The air filters are specifically matched to suit the respec-
                                                                     tive air demand, thereby ensuring dependable operation.
    Anti-Frost Control as standard                                   A further important design detail is the standard-equipped
    When operating without the optional compressed air               electric fuel pump, which allows simple and convenient
    aftercooler, the Anti-Frost Control automatically adjusts op-    bleeding of the diesel lines. Labour-intensive manual
    erating temperature in relation to ambient. In combination       pumping is therefore eliminated.
    with the optional tool lubricator, this feature prevents air
    tools from freezing up and therefore significantly extends
    their service life.
                                                                     User-friendly operation
                                                                     Reliable, gentle starts are guaranteed, even in cold temper-
                                                                     atures, thanks to manual changeover from unloaded start to
                                                                     load operation and a starter switch equipped with a preheating
                                                                     function. A pressure gauge and airend discharge temperature
                                                                     display enable operating status to be viewed at a glance.
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Lightweight – Quiet – Powerful
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Wide range of variants available
PE enclosure                                               Metal enclosure
Constructed from rotomoulded polyethylene, the double-     The all-steel, soundproof enclosure ensures long-term
walled sound enclosure ensures long-term value retention   corrosion protection and residual value retention thanks
and is both corrosion- and scratch-resistant.              to high-quality zinc priming and tough powder coating.
                                                           Stationary versions are always equipped with a metal
                                                           enclosure.
Alternative colours                                        Service-friendly
The following special colours for the PE enclosure are     The wide-opening enclosure provides excellent access to
readily available:                                         all components and therefore greatly simplifies servicing
                                                           and maintenance work.
Blue	 – Equivalent to RAL 5017	
Red	    – Equivalent to RAL 3020
Orange	– Equivalent to RAL 2009	
Green	 – Equivalent to RAL 6024
White 	 – Equivalent to RAL 9010
Further enclosure colours and custom paintwork for metal
components are available upon request.                                                                                 5
    Available equipment
    Closed floor pan
    The closed floor pan immediately catches any liquids,            extend its availability and service life, whilst also protecting
    thereby preventing ground contamination in environmen-           it from damage (kinking, stretching, being run over) and
    tally sensitive zones. All drainage openings are sealed          soiling.
    with screw plugs.
                                                                     Suitable for use in refineries
    Compressed air aftercooler                                       The M 50 is available with a certified spark arrestor for
    The compressed air aftercooler cools the compressed air          refinery applications. The engine shut-off valve automati-
    down to 7 °C above ambient. Because the aftercooler is           cally shuts the machine down upon intake of combustible
    installed at an angle, accumulating condensate is reliably       gases.
    drained away. This environmentally friendly design pre-
    vents freezing in winter, since the hot exhaust gases from       Tool lubricator
    the engine serve to evaporate the condensate.
                                                                     If required, the M 50 is also available with a tool lubricator
                                                                     for compressed air tools.
    Hose reel
    The factory-installed hose reel holds 20 m of lightweight
    hose, which does not require fully reeling out in order to
    operate. Properly storing the hose in this manner serves to
    Compressed air treatment variants
                                         Anti-Frost
                                          Control
                                                                                                              Automatically adjusts
                                                                                                            operating temperature in
      Anti-Frost Control                                                                                 relation to ambient to prevent
                                                                                                           air tools from freezing up
                                       Compressed air   Condensate
                                         aftercooler     separator
      System A                                                                                         Cool, condensate-free compressed
                                                                                                            air (100% saturated), for
                                                                                                            air tools and temporary
      - Cool                                                                                              replacement of stationary
      - Condensate-free                                                                                           compressors
    Compressed air aftercooler
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Technical specifications
     Model                                              Compressor                                                    4-cylinder diesel engine (water-cooled)                              Complete system
                                      Flow rate                        Working pressure                   Make                Model           Rated        Speed at full      Fuel             Operating      Compressed
                                                                                                                                              engine          load            tank              weight1)       air outlet
                                                                                                                                              power                         capacity
                             m3/min               cfm                bar                 PSI                                                    kW              rpm              l                kg
                                                                                                                                                                                                                  2 × G¾
     M 50                      5.0                180                  7                100               Kubota            V1505-T            32.5             3000           80                735
                                                                                                                                                                                                                  1 × G1
1)
     	   Weight specifications apply to standard unit including chassis with height-adjustable tow bar
2)
     	   Guaranteed sound power level as per 2000/14/EC
3)
     	   Measuring surface sound pressure level as per ISO 3744 (r= 10m)
Dimensions
            Version:
     Height-adjustable tow                                                                                                                                                                             1280 – 1370
              bar
                                                                                            3035 – 3475                                                                    1410 – 1440
               Version:                                                                                                                                                                                1280 – 1370
            Fixed tow bar
                                                                                               3090 – 3215                                                                 1410 – 1440      
              Version:                                                                                                                                                                                     1065
            Skid-mounted
                                                                                                               2190                                                            1160
                Version:                                                                                                                                                                               1065 – 1085
               Stationary
                                                                                                               2165                                                            1130
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    The world is our home
    As one of the world’s largest manufacturers of
    compressors, blowers and compressed air systems,
    KAESER KOMPRESSOREN is represented throughout
    the world by a comprehensive network of wholly owned
    subsidiaries and authorised distribution partners in over
    140 countries.
    By offering innovative, efficient and reliable products and
    services, KAESER KOMPRESSOREN’s experienced
    consultants and engineers work in close partnership
    with customers to enhance their competitive edge
    and to develop progressive system concepts that
    continuously push the boundaries of performance and
    technology. Moreover, decades of knowledge and expertise
    from this industry-leading systems provider are made
    available to each and every customer via the KAESER
    group’s advanced global IT network.
    These advantages, coupled with KAESER’s worldwide
    service organisation, ensure that every product operates at
    the peak of its performance at all times, providing optimal
    efficiency and maximum availability.
                                                                                                                    P-550ED   Specifications subject to change without notice.   . 13/22
                               KAESER KOMPRESSOREN SE
                               P.O. Box 2143 – 96410 Coburg – GERMANY – Tel +49 9561 640-0 – Fax +49 9561 640-130
                               E-mail: productinfo@kaeser.com – www.kaeser.com