The patented i.HOC rotary dryer from Kaeser uses up to 100 % of compressor heat! Thanks to full-flow regeneration, it delivers reliable pressure dew points up to an ambient temperature of 45 °C – completely without electrical heating or additional cooling of the regeneration air!
* Installed in air-cooled or water-cooled units
* Unit rated power from 37 kW to 200 kW
* Unit flow rates from 3.3 m³/min to 30 m³/min
* Integrated SIGMA CONTROL 2 compressor controller (SFC model versions)
Sub-zero pressure dew points even in high ambient temperatures:
Thanks to its extraordinary regeneration potential, the i.HOC delivers below-zero pressure dew points even with high cooling medium temperatures.
Pressure dew point stability even with variable flow rates:
The pressure dew point remains stable even with low compressor load – no partial-load compensation required.
Effective drying AND heat recovery
i.HOC uses the heat exchangers of the second compression stage, which have been optimised for heat recovery, as regeneration air coolers.
Integrated refrigeration dryer
Even for oil-free compression rotary screw compressors, refrigeration dryers are the go-to choice for delivering best possible energy efficiency and favourable investment cost when requiring pressure dew points to +3 °C. Pressure dew points below +3 °C are provided by desiccant dryers.
Integrated i.HOC rotation dryer
The optional i.HOC rotation dryer for integration in the rotary screw compressor can reliably and efficiently achieve pressure dew points as low as -30 °C. The hot compressed air from the second compression stage is used to regenerate the desiccant.
Energy-saving drying
Integrated design, together with the generously-dimensioned aluminium block heat exchanger, helps ensure minimal pressure loss of less than 0.1 bar. The energy-saving scroll refrigeration compressor helps achieve additional compressed air energy savings.
Excellent accessibility
All refrigeration dryer components are perfectly accessible via the service door on the front of the unit. Dryer service and maintenance work is therefore a breeze.
* Regeneration air inlet
* Regeneration air outlet
* Condensate separation
* Radial fan inlet
* i.HOC outlet
* Regeneration air inlet
* Drum (silica gel desiccant)
* Regeneration air outlet
* Heat exchanger stage 2
* External condensate separator
* Radial fan
* Demister (droplet separator)
* Rotation dryer outlet
* Drum motor
* Pressure dew point sensor (optional)
The technical specifications can be found in this brochure:
