With Integrated Compressed Air Dryer 37 - 355 kW

The i.HOC (Integrated Heat of Compression) rotary dryer from KAESER offers energy-free compressed air drying by using up to 100% of the compressor’s waste heat. Designed for use in both air- and water-cooled oil-free rotary screw compressors, it ensures stable, sub-zero pressure dew points even under high ambient conditions – without requiring electric heaters or extra cooling systems. The i.HOC system is integrated with the SIGMA CONTROL 2 for smart monitoring and control.

• Consistent performance at partial load
• Efficient heat recovery built into the second-stage heat exchangers
• No need for additional heating or cooling equipment
   

Specifications

• Installed in compressors rated: 37 kW – 355 kW
• Flow rate range: 4.2 – 51 m³/min
• Pressure dew point: Sub-zero, stable even at high ambient temps (up to +45 °C)
• Regeneration method: Full-flow using 100% heat of compression
• Energy usage: No external energy input needed for drying
• Controller: Integrated SIGMA CONTROL 2 (on SFC model versions)
• Cooling types: Compatible with air- and water-cooled compressors