Overview
Donaldson’s refrigerated compressed air dryers use efficient cooling technology to condense and remove water vapor — helping protect your systems and maintain stable dewpoints in the 3°C to 5°C range. These systems are ideal for applications that don’t require ultra-dry air but still depend on consistent moisture removal for process safety and product quality.
With models available in non-cycling, cycling, and variable speed refrigerated air dryer configurations, we offer flexible solutions to meet different flow rates, ambient conditions, and energy efficiency requirements. Whether you're looking for a compact fridge dryer, a rugged refrigerant dryer for high pressure, or a scalable system for growing operations, our portfolio offers dependable compressed air treatment.
Buran Dryer Series
Compact Refrigerated Air Dryer for Everyday Use
The Buran dryer series is a compact and reliable fridge dryer for air systems up to 1,175 m³/h (692 scfm). It’s an ideal choice for smaller or mid-sized operations looking for effective low dew point air drying without the complexity of larger systems. Built-in filters (on select models) and zero-loss drainage simplify setup and operation.
Main Features & Specifications
- Dew point-dependent compressor control
- Electronic, no-loss condensate drain
- Durable aluminium heat exchanger
- Quiet operation and compact footprint
- Flow capacity up to 1,175 m³/h (692 scfm)
- Ideal for general-purpose compressed air systems
- Integrated filters on select models
- Optional R-513A refrigerant
Applications
- Light and medium-duty industrial air drying
- Workshops, OEM equipment, packaging, assembly lines
- Small to mid-size compressed air systems where moisture removal is essential
Bora DHP Dryer Series
High-Pressure Refrigerated Dryer for Demanding Applications
The Bora DHP dryer series delivers robust performance for systems operating at up to 45 bar (653 psi) and flows from 25 to 6,000 m³/h (14.71 to 3,531 scfm). This heavy-duty refrigerant dryer features electronic controls and a scroll compressor to provide quiet, stable operation in high-demand environments.
Main Features & Specifications
- Stable dewpoint under varying loads
- Electronic control system with pressure and temperature sensors
- Copper brazed stainless steel heat exchanger
- High overload capacity to a pressure dew point of approx.+20 °C
- Remote control
- Available in air- and water-cooled models
Applications
- High-pressure compressed air networks up to 50bar g
- Process industries, metalworking, and power plants
- Systems where stable 3°C dewpoint and continuous moisture removal are required
Boreas Dryer Series
Scalable Refrigerated Air Dryers with Advanced Control Options
The Boreas dryer series covers a wide flow range — from 1,260 to 21,000 m³/h (742 to 12,360 scfm) — and supports both cycling and variable speed refrigerated air dryer configurations. Designed for medium to large facilities, Boreas offers control flexibility and reliable low dew point air drying.
Main Features & Specifications
- Available with hot gas bypass or variable speed control
- Electronic level-controlled electronic drain with alarm monitoring
- Multifunction display for clear system feedback
- Optional R-513A refrigerant
- Rugged steel housing in a space-saving format
- Compact single frame design up to 17,500m3/h
- Available in air- and water-cooled models
Applications
- Large-scale or growing industrial compressed air systems
- Applications needing flexible moisture removal systems
- Multi-shift operations or facilities with fluctuating air demand requiring stable performance and condensate management
Availability varies by region. Please contact your local Donaldson representative for specific availability in your region. All products, specifications, and availability are subject to change without notice.
