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Desiccant Air Dryers

We are a leading Manufacturer of desiccant air dryers from Vadodara, India.
Desiccant Air Dryers

Desiccant Air Dryers

Rs 7.5 Lakh  / UnitGet Best Price
Dryer TechnologyDesiccant
Dryer BrandAirro Engineering
Minimum Output Dew Point-40 C
Surface FinishColor Coated
Warranty12 months
Theory of operations:
  • In HOC type dryer, hot air at 120-degree Celsius to 140-degree Celsius from Compressor discharge is directly used for the desiccant regeneration. Running cost of this dryer is virtually NIL. It has two drying towers filled with the Activated alumina or Molecular sieve desiccant and they alternate in the process every 4-hour automatically.
  • Compressed air directly from air compressor discharge is taken to air dryer inlet through pipelines at 130-degree Celsius (Min) temperature. This hot air is passed one drying vessel were saturated desiccant is regenerated by this high-temperature air. After picking up moisture from the bed, this air is cooled in an intermediate cooler. Here moisture is condensed and removed by an auto drain trap. At 40-degree Celsius temperature, this air passes through second drying vessel where moisture gets absorbed and dry air comes out. Cycle time is 4-hours regeneration and 4-hours drying. After 4-hours changeover of vessels takes place. In the regeneration cycle heating of the bed is only for 2-hours and thereafter the bed is cooled by dry air. Dry air is cooled to 40 degree Celsius temperature before going out of the air dryer.


  • No loss of compressed air in the purge. It is a no purge loss design.
  • Maintenance is easy and simple as there are no heaters and no other moving parts except 4 way valves.
  • Fully automatic, continuous operation without any attention of the operator.
  • Negligible operating cost. It neither requires electric power for regeneration nor there does any purge loss of compressed air.

S.No. Capacity Line Size Space Required
CFM NB (mm) Length (mm) Width (mm) Height (mm)
1 300 50 2000 1500 2200
2 400 50 2000 1500 2200
3 500 65 2000 2000 2200
4 600 65 2000 2000 2400
5 750 80 2500 2000 2400


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