The working principle of absorption dryers is quite simple: moisture-containing compressed air flows over hygroscopic granules, in particular activated aluminum oxide granules, which give the best result.
This activates the drying process.
Expelling the water vapor from the moist compressed air via the conduction over and through the drying granules ensures a gradual saturation of the absorption granules (seve) with the water absorbed from the compressed air.
The absorption granules must be regenerated on a regular basis to restore the drying capacity.
That is why our adsorption dryers contain two drying elements (tubes), both containing the drying granules.
The first element dries the moist compressed air while the 2nd element is “blown through”, this is called the regeneration process.
As soon as the granules in the first element are saturated with the released compressed air water, they switch tasks and the operation is transferred to the second element.
This switching process is fully automatic due to the controller present in the absorption dryer.
There are 2 standard values of the pressure dew point in our absorption dryers, namely -20 °C and -40 °C.
As a result, these dryers are used to supply very dry and very pure compressed air for more critical applications.
As standard, our absorption dryers can be used at a maximum compressed air pressure of 12 bar.
In addition to these models, we also offer a 16 bar dryer for use in laser cutting, where very high demands are made on the air quality.
Our rinse regenerated absorption dryers are of the heatless type.
These dryers are especially suitable for lower air flows up to a maximum of approximately 5 m³ per minute and depending on the dew point.
The regeneration process is carried out using purge compressed air with a compressed air loss that fluctuates around 10–15% of the nominal capacity of the dryer at an operating pressure of 7 bar.
Our absorption dryers are optionally equipped with a series of filters, including an oil particle filter, so that the generated and dried compressed air is free of any impurities.
It is otherwise with the residue or water that comes out of the dryer, you must treat this as chemical waste and must be collected as such, and disposed of in an appropriate manner.
The separated water should be treated as chemical waste.
Know that an oil-lubricated compressor has minimal oil consumption and separates it into the generated compressed air.
Every year or after 4000 operating hours, these drying pellets must be replaced with new drying pellets.
To maintain the operation and guarantee, it is very important to use our Javac prescribed drying granules.
Click here to view the absorption dryer manual.
If you have any questions, don’t hesitate to contact us.
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