Membrane Dryers

Innovative, compact dryers for superior efficiency and reliability The Kaeser Membrane Module (KMM) features a special flow concept for long-term drying efficiency as well as the innovative, high-density helical fibre structure of the high-performance hollow fibre membranes. KMM dryers easily deliver pressure dew points in the minus range, even when installed where space is at a premium. They also play to their strengths when energy sources are unavailable or when used as end-point dryers in areas at risk of frost.


  • Flow rates from: 0.04 to 3.97 m³/min
  • PDP from +10 °C to -40 °C (relative temperature reduction of up to 90 °C compared to inlet air temperature)
  • Optional versions with energy-saving purge air stop valve


  • Superior membrane design: The helical structure of the extra-fine Kaeser membrane fibres results in a high-surface area separator with low space requirements. Furthermore, effective transportation of water molecules from the outside in means the external membrane pores always remain ready to channel more water (innovative Flow Concept).
  • Maximum operational reliability: All functional parts of the KMM dryer are housed within a stable enclosure. Upstream Kaeser micro filters provide reliable protection to membrane modules against the harmful effects of dirt, aerosols and oil.
  • Highly efficient: Air loss is minimised thanks to purge air nozzles featuring a defined aperture diameter. During downtimes, the (optional) purge air stop valve significantly augments the cost-effectiveness of the dryer.