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Pneuzorb - Compact Heatless Air Dryer

Refrigeration air dryer capacity
Refrigeration air dryer work pressure

10cfm to 125cfm

Working Pressure4 bar(g) to 12 bar(g)

Moisture Indicator to ascertain outlet air quality

Purge Economizer offers Potential savings 

Oil Check apparatus for air quality validation

Inbuilt with DDS – Dew point Dependent switching


Pneuzorb - The modular heatless Air dryer

Summits manufacture compact heatless air dryer - Pneuzorb for point of application.

Heatless compressed Air Dryers removes moisture in compressed air to a level of 10 ppm(w) by using “Pressure Swing Adsorption Technology”.  Outlet air quality according to ISO 8573 - 1, 7.2, Table 3, Class 3 & 2

Summits Compact Desiccant type Heatless Air Dryers remove the moisture to a level of 80 ppm(w) by using pressure swing adsorption technology. The wet air enters into one desiccant tower and gets dried by the high performance desiccant adsorbent. The dry air passes through inbuilt filters and check valves to the utility. A portion of dry air (depending on the operating pressure and required dew point temperature) passes through an orifice into the other saturated tower at near atmospheric pressure, liberates the entrapped moisture in the desiccant to the atmosphere and regenerates it for the next drying cycle. A reliable electronic timer controls the cycle and valve operations effectively therby ensures continuous dry air output to the utility.

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Working principle of Pneuzorb Heatless - air dryer

First cycle: 
Micron filter (1) removes bulk moisture and liquid oil from the Wet compressed air.  Shuttle valve (3) diverts this pre-treated air to bottom of the Tower (T1).  While compressed air passes through the Tower (T1), Premium grade desiccant filled in the tower adsorbs moisture and dries the air.  Dry air leaves the Tower (T1) through Check valve (2).  Thus Dry, filtered compressed air is available to the application. 
While wet air is being dried in Tower (T1), Tower (T2) shall be regenerated.  Dry air coming out of Tower (T1) expands to atmospheric pressure through a small orifice (Inbuilt in Check valve) and become subsaturated.  This subsaturated dry air purges out all moisture from the Tower (T2) makes it ready for Second cycle.  Air flow is diverted to Tower (T2) by valves and controller for second cycle.   Second cycle is just a replica of First cycle with Towers interchanged and thus the process continues.


Pneuzorb Heatless air dryer Application


Rice mill

CNC Machine shop


Food Processing


General Engineering








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