Compressed air preparation

Dry and clean air for an increase in the service life of components and systems.

Startseite Product segments Compressed air preparation

Perfect compressed air preparation gives dirt and corrosion no chance

There are up to 190 million dirt particles per cubic meter of air in our ambient air. A fact! Compressors suck in this air with all the dirt particles and compress it. The concentration of dirt particles per cubic meter of compressed air is thus increased many times over. People, equipment and the environment are endangered by water, oil and dust ingress. The enemy for every compressed air application. If compressed air is treated efficiently, this is a guarantee for dry and clean air from the construction site to the production of machines and plants.

Condensate separator


Water moisture in the atmosphere is the basis for condensate in compressed air systems. Air is compressed and heats up and then cools down again in valves, hoses and pipelines. When the compressed air comes into contact with the ambient temperature, the vapor liquefies and can be removed by mechanical separation. If the air cools further – the amount of condensate inevitably increases. Water moisture is the enemy of any compressed air circuit and must be removed. Condensate separators are used to remove the condensate from the compressed air by means of centrifugal motion.


KAESER Cyclone separator

Large amounts of condensate can be removed from the compressed air using a cyclone separator. If an existing refrigeration dryer is installed directly after a screw compressor, the use of a cyclone separator is recommended.

KAESER Steam traps

Compressed air condensate is discharged safely and without pressure losses through the use of an electronic condensate drain.

Compressed air drying


Compressed air drying is an important component in compressed air treatment. Here, moisture contained in the compressed air is kept to a minimum. The main task of a compressed air dryer is to remove moisture from the process and produce dry, undersaturated compressed air. Condensation processes are avoided – both in the compressed air system and in the compressed air application. This reliably protects equipment and processes against condensate damage.

KAESER SECOTEC – a series of high-quality KAESER refrigeration dryers in industrial quality will be supplemented by the new TD series from September 2022! The new series is characterized by a space-saving and highly efficient latent heat storage SECOPACK LS as well as the SIGMA CONTROL SMART control with comprehensive system monitoring and optional network connection (TCP).

Flyer SECOTEC – refrigeration dryer TD series

The KAESER SECOTEC refrigeration dryer model TA 5 has been structurally optimized and improved.

Flyer SECOTEC refrigeration dryer TA 5 – optimizations


Reliable. Intelligent. Efficient.

KAESER Kompressoren SE presents a new cold-regenerated adsorption dryer for compressor delivery rates from 1.6 to 155.5 m³/min.

Flyer Adsorption Dryer – i.DC Series


Versatile. Efficiency. Smart.

The new CALOSEC series of heat-regenerating adsorption dryers from KAESER is a reliable and efficient solution for drying compressed air.

Learn more Flyer heat-regenerating adsorption dryer CALOSEC

KAESER Energy-saving refrigeration dryer

Reliable dehumidification of compressed air and simultaneous energy savings thanks to intermittent control – these are the main tasks of KAESER SECOTEC refrigeration dryers. If cooling capacity is required, the refrigeration circuit is switched on. Cooling of the compressed air is thus available at all times. If compressed air is not additionally dried, this leads to operational disturbances, interruptions in production and cost-intensive maintenance and repair work.


  • Low pressure losses
  • No pre-filter necessary
  • Energy savings due to interruption control
  • Integrated cold accumulator

Volume flow: 0.60 to 34 m³/min

The new  KAESER SECOTEC refrigeration dryer series TD in industrial quality will complement the existing series from September 2022. The new series features a space-saving and highly efficient SECOPACK LS latent heat accumulator as well as the control system SIGMA CONTROL SMARTwith comprehensive system monitoring and optimum network connection (TCP).


  • Low energy costs
  • High operational safety
  • Stable pressure dew point
  • Long service life
  • Future-proof refrigerant
  • High-quality control system
  • Optional network connection
  • Small footprint

Volume flow: 5.1 to 9.4 m³/min

KAESER Refrigeration dryer

KAESER refrigeration dryers of the KRYOSEC series stand for high industrial quality “Made in Germany”. The devices enable reliable drying up to an ambient temperature of +50 °C. Thanks to the low pressure loss of the heat exchanger system as well as a low-maintenance design, the refrigeration dryer works economically and efficiently. Due to the compact design, the units can be used in a wide range of applications.

Volume flow: 0.35 to 3.5 m³/min

KAESER Adsorption dryer

KAESER adsorption dryers can reliably achieve low pressure dew points down to – 70 °C in continuous operation, even under extreme operating conditions, thanks to an economically optimal basic dimensioning. If oil-free compressed air of high quality is required, oil vapor absorbers are placed in the compressed air network. If the residual oil content is removed down to

Volume flow: 1.1 – 154 m³/min


Reliable. Intelligent. Efficient.

KAESER Kompressoren SE presents a new cold-regenerated adsorption dryer for compressor delivery rates from 1.6 to 155.5 m³/min.

Flyer Adsorption Dryer i.DC series



Filtration of compressed air is one of the building blocks in the treatment of compressed air and comes into play at a wide variety of points in the process chain. Solid and liquid contaminants in compressed air are removed in stages by compressed air filters. These include larger quantities of condensate as well as large contaminants such as rust and abrasion, oil droplets and dusts down to the finest oil mist and fine dust.


KAESER Microfilter

KAESER microfilters consist of a prefilter, dust filter, fine filter and microfilter. Depending on the application, the microfilter filters liquid or solid contaminants out of the compressed air.

Volume flow: 0.58 – 248 m³/min Pressure: up to max. 16 bar

KAESER Activated carbon filter

KAESER activated carbon filters filter oil vapors and odors from the compressed air.

Volume flow: 0.58 – 248 m³/min Pressure: up to max. 16 bar

Condensate treatment


Protecting our environment is our top priority. Oil is a danger to the environment. Therefore, the treatment of compressed air condensate is necessary. If condensate from compressed air stations is not disposed of properly, this can become a very costly and time-consuming matter. It is therefore advisable for every plant operator to treat any condensate produced in accordance with the law.


The first intelligent oil-water separator completely redefines condensate treatment and complements the product portfolio of KAESER Kompressoren SE. Available for delivery rates up to 90 m³/min, the unit for the first time features the internal Aquamat Control

Flyer “Aquamat i.CF” Brochure “Aquamat i.CF”


  • It continuously monitors the level of condensate in the expansion chamber and warns of potential overflow.
  • This sensor was primarily developed for retrofitting i.CF 10 models that have already been sold and do not have a built-in control. It offers a cost-effective way to monitor an existing oil-water separator model i.CF10.
  • An alternative option is to expand an existing i.CF 10 model to the i.CF 15 model using a conversion kit. This enables comprehensive system monitoring of the separator, including active condensate separation.
  • When purchasing new models, it is recommended to select the i.CF 15 model over the i.CF 10 model with the alarm sensor.
  • For models with AQUAMAT CONTROL for condensate monitoring, the alarm sensor is not absolutely necessary, as a level sensor is already integrated into the control (from i.CF 15).

KAESER Oil-water separation system

Compressed air condensate consists mainly of oil, water and dirt. It accumulates after the compressor, the compressed air tank, dryers or filters. By using an oil-water separator, the compressed air condensate is collected and cleaned.

  • To treat the accumulated compressor condensate
  • In accordance with § 7 of the Water Resources Act
  • Reduction of disposal costs
  • Increases the filter service life

The first intelligent oil-water separator


KAESER Compressors revolutionizes condensate treatment with the intelligent Aquamat i.CF. This oil-water separator is capable of handling delivery rates of up to 90 m³/min and is equipped with the innovative Aquamat Control internal control system. This takes over active process control and enables simple and environmentally friendly planning of maintenance measures.


The internal Aquamat Control monitors the condensate level in the oil-water separator and, when the maximum level is reached, feeds the condensate through the filter cartridges with bursts of compressed air to make better use of the adsorption capacity. The control system detects and reports malfunctions and enables the remaining service life of the filter cartridges to be determined independently of the load, so that maintenance can be planned and targeted. The cartridge change takes place dirt-free and without contact with the condensate.


The Aquamat i.CF offers reliable oil-water separation for compressors with delivery rates from 8 to 90 m³/min. With only one cartridge size and the ability to adjust capacity, spare parts inventory and supply is simple and cost-effective. In addition, the Aquamat i.CF is certified and approved by the Institut für Bautechnik Berlin, which means the highest technical and legal security for the operator.

Compressed air storage


Every compressed air application and system requires components for storing compressed air. Their use is what makes compressed air systems economical in the first place. The prerequisite is stable network pressure and stable air pressure quality at all times.


KAESER Compressed air tank

Compressed air tanks are so-called storage and buffer media and are extremely important in a compressed air station: If consumption peaks occur, the compressed air tank compensates for them and often separates condensate from the compressed air. Here, it is important to size the compressed air tank correctly and to provide the necessary corrosion protection. Sufficiently long inspection intervals should be provided.


  • Low testing costs
  • Reduction of the switching frequency of screw and piston compressors and thus three times longer service life
  • Optimal mounting locations for pressure sensorsand pressure switches
  • Use for pre-separation of condensate during downstream treatment

Sizes: 90 – 10,000 litres Pressure: 11, 16, 45, or 50 bar

Individual solutions


Because we believe that solutions are only as good as the preparation. We adapt your compressed air systems to the respective production conditions, the place of use and your specific needs. No matter whether you want to optimise your system or are planning a new one. The FILCOM team accepts the challenge. Because we are optimally equipped to find the right solution for every customer.

Expertise in vielen Bereichen