The advanced “Mobilair 135” portable compressor from KAESER

Featuring the advanced “SIGMA CONTROL mobile” (SCm) compressor and engine control system, the “Mobilair 135” is the latest addition to KAESER KOMPRESSOREN’s extensive range of portable compressors. Furthermore, in combination with the SCm, the innovative generator version provides exceptional flexibility, as users are able to benefit from optimal compressed air delivery and generator performance.  

Powered by a 122 kW four-cylinder Deutz diesel engine and featuring flow-optimised “SIGMA PROFILE” airend rotors, the “Mobilair 135” provides a free air delivery of 13 m³/min at 10 bar (g). 12 and 14 bar versions are also available delivering 12 and 10.6 m³/min respectively. The whole unit sits on a robust AlKo chassis with a load capacity of 2700 kg.

Available with various equipment options, the “Mobilair 135” provides a versatile source of energy for a wide range of construction site needs: For special applications, it can be supplied as a skid-mounted version rather than as a standard chassis-mounted model. Optional additional equipment includes air treatment systems to provide cool, dry, oil-free air of various classes to meet the special demands of e.g. concrete repair as per German ZTV-SIB regulations, or fresh air.

New: Co-ordinated compressed air and power generation

By precisely matching motor power to actual compressed air demand, the “SIGMA CONTROL mobile” (SCm) enhances compressed air availability as well as fuel efficiency. Moreover, with the 15 kVA generator versions of the “Mobilair 135”, the SCm also receives information from the generator regarding voltage and frequency. Consequently, the electronically controlled air intake valve is able to dynamically adjust free air delivery in accordance with generator power consumption. This system therefore enables co-ordinated compressed air and power generation without the risk of overloading the unit’s engine. Needless to say this provides significant user advantages: For example, the maximum possible free air delivery can be fully utilised as there is no longer a predetermined air delivery limit – this is also combined with impressive fuel efficiency. Moreover, the electronically controlled air intake valve allows system pressure to be precisely controlled to within 0.1 bar directly from the SCm’s display. This not only makes operation simple, but also significantly enhances fuel efficiency even when operating at partial load.

Specially tailored for KAESER “Mobilair” products, the intelligent SCm was built to withstand the toughest of construction site conditions: A sturdy metal cover protects the control panel, screen and the twelve input keys of the shock- and vibration-resistant control system. Moreover, the system is shielded against electromagnetic interference as per IP 65 standards and can be used in a temperature range from -20 °C to +70 °C. Amongst its many talents, the “SIGMA CONTROL mobile” displays operational data, indicates operational modes, utilises logically structured menus for maximum user-friendliness and enables performance monitoring and remote diagnostics. Further features include engine diagnostics, comprehensive system monitoring and alerts to potential problems and various maintenance messages. Users are therefore able to benefit from all of the advantages that modern compressed air technology has to offer including maximum machine availability and unrivalled system performance.

KAESER works photograph – free for publication