MOBILAIR M44: Simple and straightforward – in transportation, operation, and maintenance

Good things can be so simple: The new MOBILAIR M44 from KAESER KOMPRESSOREN is the dependable choice in the 4-cubic-metre class. From transportation to operation and maintenance, its straightforward design simplifies every step. Featuring durable, impact-resistant, rotomolded polyethylene wing doors, the M44 excels in challenging conditions and weighs in at under 750 kilograms. The M44 offers further advantages: this portable compressor is highly fuel-efficient and delivers up to 4.10 m3 (145 cfm) of compressed air per minute, with a pressure of up to 7.5 bar. This provides more reserve capacity for long hose lines.

More versatility

The MOBILAIR M44 can be tailored to meet the needs of the specific application. Equipped with a variety of optional air treatment components, this versatile portable compressor consistently delivers the required air quality. With a choice of different chassis options - unbraked or with an overrun brake - as well as stationary versions with skids or machine feet, the M44 is ideal for any location. And no matter where the portable powerhouse needs to be transported, KAESER's top priority is safety, which is why the M44 comes equipped with crane and lashing eyes as standard.

The benefits at a glance:

M44PE unbraked:

  • Anti-Frost Control as standard: prevents connected air tools from freezing
  • Compressed air aftercooler option: angled installation with condensate evaporation via exhaust gases
  • 750-kg chassis: transportation with a Class B driver's licence
  • 45-litre tank capacity: sufficient for a full work shift

M44PE overrun and parking brake:

  • Optional compressed air treatment: compressed air aftercooler for cool, condensate-free compressed air, filters for technically oil-free air and/or reheating for dry compressed air
  • Option: Low-temperature version including engine coolant pre-heating: perfect performance even in extreme sub-zero temperatures
  • Option: Generator for construction site compressed air and power
  • 1000-kg chassis: transportation with Class BE driver's licence
  • 80-litre tank capacity: suitable for even the most demanding of challenges
MOBILAIR M44 in use on the construction site.

Simply less effort

The MOBILAIR M44 features the SIGMA CONTROL SMART controller for easy operation. Using state-of-the-art electronic engine management, the advanced compressor controller ensures optimised compressed air availability, fuel efficiency and exhaust gas management. Additional features include: operating mode indicator, intuitive user guidance, monitoring, and system diagnostics. For faster maintenance, the M44 is fitted with a spin-on cartridge on the oil separator tank. This cartridge quick-change capability ensures simple and cost-effective servicing. Furthermore, this durable powerhouse is exceptionally maintenance-friendly. All maintenance points are easily accessible thanks to the large wing doors, enabling service work to be completed quickly and efficiently.

Easy to locate anywhere

The MOBILAIR M44 is the perfect choice for wherever an efficient and reliable on-site compressed air supply is required - whether for operating sewer robots, breakers, performing cleaning tasks, or providing support for various concrete applications. No matter how varied the applications, one thing always remains unchanged: dependable efficiency.

Applications for the MOBILAIR M44.
From left to right: Pneumatic hammers, compressed air spades, bubbling, compressed air lances, blow-out operations, and sewer robots

bauma 2025: experience the MOBILAIR M44 in action

Still unsure about our powerful all-rounder? Then join us at bauma in Munich from the 7th - 13th of April, 2025. As always, we will be present with our large exhibition stand at the world's leading trade fair for construction machinery, building material machines, mining machines, construction vehicles and construction equipment. Don’t miss your chance to experience the M44 first hand - you’ll be glad you did!


The MOBILAIR M44 is currently available only in Europe.