Activated carbon adsorber

Best air quality for continuous operation

Kaeser ACT-series activated carbon filters reliably remove oil vapours and odours. Installed downstream of compressed air drying and pre-filtration components, they attain Class 1 residual oil content as per ISO 8573-1, thereby protecting sensitive production processes.

Generous fill levels of high-quality activated carbon and their enduring low pressure loss make them a highly cost-effective choice: they can last 12,000 hours of compressor operation without replacement of the activated carbon. An oil indicator fitted as standard indicates any operational disruptions.

  • Residual oil content within the concentration range 0 - 0.01 mg/m³
  • Flow rate 1.60 – 155.50 m³/min
  • Max. working pressure 10 bar / 16 bar and optionally, 45 bar

Your advantages

  • Significantly lower values than required by Class 1:
    Class 1 as per ISO 8573-1 is achieved with residual oil content as high as 0.01 mg/m³, yet Kaeser ACT desiccant dryers can deliver significantly lower residual oil content. This means consistently reliable compliance with limit values.
  • Low maintenance costs:
    Kaeser ACT adsorbers have very long replacement intervals thanks to their generous dimensions and optimal flow dynamics through the highly effective activated carbon. They're also mounted in a protective and durable steel frame.
  • Minimal pressure loss:
    Generously dimensioned inlet and outlet diameters ensure consistently low differential pressure, thereby enhancing cost-effectiveness.
The perfect partner: compressed air filters from KAESER
Activated carbon adsorber from Kaeser Compressors

ACT activated carbon adsorbers should always be equipped with Kaeser filters. Installed as prefilters and particulate filters, they ensure maximum service life of the activated carbon and, with minimal pressure loss, prevent carbon dust from being entrained in the cleaned compressed air.


Product details


Standard equipment

  • Adsorption material tank including activated carbon filling, upper/lower stainless steel flow diffusers and separate upper/lower filling and emptying connections;
  • Equipped with tank pressure gauge and pressure regulator with oil indicator (option for 45 bar operating pressure);
  • Pre-installed compressed air intake and discharge line;
  • Stable base frame, 2-component wet paint coating.


  • Silicone-free version to VW test standard PV 3.10.7
  • Working pressure 16 / 45 bar for models ACT 16 - 140
  • Working pressure 10 bar for models ACT 175 - 1555
Reduce life-cycle costs!

Activated carbon filter

Activated carbon filter from Kaeser Compressors
 KA Filter element

Activated carbon adsorber + particulate filter

Reduce life-cycle costs with activated carbon adsorbers and particulate filters from Kaeser Compressors
 ACT activated carbon filling
 KD particulate filter
 ACT+KD Savings

Costs for investment, service (materials, labour and disposal), with the following replacement intervals: ACT activated carbon filling 12,000 operating hours (OH), particulate filter 6,000 OH, activated carbon filter 1,000 OH; annual debt service over 10 years.

Low life-cycle costs

When it comes to continuous compressed air demand, Kaeser ACT activated carbon adsorbers are hands-down winners from a cost perspective compared to typical activated carbon filters. Thanks to significantly longer service intervals, their life-cycle costs in the third year can equal those of high quality activated carbon filters.
In the following years they are by far the more cost-effective alternative. This advantage is further bolstered by better compressed air availability resulting from the lower number of necessary service visits.

Design and Function
Compressed air flow diagram with an activated carbon adsorber from Kaeser Compressors
  1. Compressed air inlet
  2. Pre-filter (accessory)
  3. Condensate outlet
  4. Adsorption material tank
  5. Stainless steel flow diffuser
  1. Activated carbon filling
  2. After-filter (accessory)
  3. Compressed air outlet
  4. Pressure regulator
  5. Oil indicator
Technical specifications

The technical specifications can be found in this brochure: