Overview
From compact point-of-use solutions to high-capacity industrial systems, Donaldson’s oil-free technologies cover a wide range of applications. With advanced filtration media and modular designs, our solutions support space-saving installations and easy maintenance — helping to provide reliable air quality for critical processes. With our dryer packages and activated carbon adsorbers, a residual oil vapor content of <0.003 mg/m³ (Class 1 acc. to ISO8573-1:2010) is achievable at appropriate sizing and operating conditions.
Our oil-free solutions are also suitable for nitrogen purification.
Oilfreepac™ Smart Dryer Package
Compact Oil-Free Purification
The Oilfreepac™ Smart dryer package is based on UltrapacTM smart dryer technology and combines a heatless adsorption dryer, UltraPleat™ filtration technology, and an integrated activated carbon adsorber to provide dry, oil-free compressed air in a compact, all-in-one system. It is available in flow ranges from 5 to 100 m³/h (3 to 59 scfm).
Main Features & Specifications
- Four-stage purification: prefilter, adsorption dryer, activated carbon adsorber, afterfilter
- Compact, space-saving and modular design for flexible configurations.
- UltraSilencer reduces noise (60 dB) and helps support your safety compliance program
- All silicone-free materials for silicone-free compressed air.
- High efficiency with low consumption of regeneration air.
- Ultraconomy dewpoint control (Superplus) supports better utilization of desiccant capacity by adjusting cycle times.
- Stable pressure dewpoint: -70°C / -100°F at 70% load, -40°C / -40°F at 100% load.
- Easy cartridge replacement for fast maintenance
- Compact stand-alone version can be used to help reduce installation and maintenance costs
Applications
- Chemical processing
- Food and beverage production
- Paint and surface finishing
- Environmental technology
- Industrial machinery
Oilfreepac™ HL-OFP Dryer Package
High-Capacity Oil-Free Drying for Challenging Conditions
The Oilfreepac™ HL-OFP dryer is designed for reliable oil-free drying and purification, even in demanding environments with high temperatures and humidity. With working pressures up to 16 bar, it combines a heatless adsorption dryer and integrated activated carbon adsorber to support critical applications in flow ranges from 100 to 1,000 m³/h (60 to 600 scfm).
Main Features & Specifications
- Four-stage purification: two-stage pre filtration, adsorption dryer, activated carbon adsorber, afterfilter
- Stable pressure dewpoint: -70°C / -100°F at 70% load, -40°C / -40°F at 100% load.
- Pre- and afterfilters with UltraPleat™ filter elements
- Open frame design allows easy access to all components.
- Stable pressure dewpoint: -70°C / -100°F at 70% load, -40°C / -40°F at 100% load.
- Ultraconomy dewpoint control (Superplus) supports better utilization of desiccant capacity by adjusting cycle times.
Applications
- Industrial machinery
- Food processing
- Electronics manufacturing
- Automotive production
Ultrasorp AKC Smart Modular Activated Carbon Adsorber
The Ultrasorp AKC Smart carbon adsorber removes oil vapors, hydrocarbons, and odors using highly efficient activated carbon cartridges. Its modular design allows for easy installation as a standalone or system-integrated solution. It is available in flow ranges from 5 to 100 m³/h (3 to 59 scfm).
Main Features & Specifications
- Modular concept
- Built-in oil indicator for residual oil content monitoring
- High-efficiency activated carbon cartridges for fast adsorption
- Advanced UltraPleat™ filters support high air purity
Applications
- Food and beverage production
- Industrial machinery
- Laser cutting and optics
- Automotive painting and finishing
Ultrasorp AKC
High Capacity Activated Carbon Adsorber
The Ultrasorp AKC carbon adsorber is engineered for reliable removal of oil vapors, hydrocarbons, and odors in industrial compressed air systems. With capacities up to 8,750 m³/h (5,150 scfm), it is well suited for larger-scale operations.
Main Features & Specifications
- Large activated carbon bed designed for long service life
- Low flow velocity for low pressure drop
- Operating temperatures up to 50°C
Applications
- Paint and coating processes
- Food and beverage industries
- Automotive production
- Electronics and clean environments
DF-T Filter Elements
Triple-Function Filter for Oil-Free Purification in Compact Spaces
The DF-T filter combines a coalescing filter, activated carbon adsorber, and particle filter in one compact housing. Depending on operating conditions, the three-stage purification system can be used to comply with purity class 1 according to ISO 8573-1:2010.
Main Features & Specifications
- Three filtration stages in one compact filter
- Intelligent overall concept supports use as a point-of-use filter
- Compatible with DF filter housing with integrated Economizer for filter monitoring, and bayonet lock to support operational safety
Applications
- Final filtration for critical applications
- Electronics and cleanroom environments
- Food and beverage production
- Laboratory and pharmaceutical processes
A Filter Series Elements
Compact Activated Carbon Adsorption Filters
The A Filter Series is designed for effective removal of oil vapors, hydrocarbons, and odors, using a two-stage process of activated carbon adsorption followed by depth particle filtration.
Main Features & Specifications
- Compact design
- High packing density of activated carbon for long filter life
- Microfiber fleece depth filter for particle retention
- Residual oil content as low as <0.003 mg/m³
- Compatible with DF filter housing
Applications
- Breathing air supply
- Prefiltration for sterile air systems
- Filling and packaging machines
AK / AKP / P-AK Filter Elements
Versatile Activated Carbon Elements
The AK, AKP, and P-AK activated carbon filter elements provide reliable oil vapor removal, odor control, and particle filtration. Compatible with various Donaldson housings, they offer flexible solutions for industrial compressed air purification. Elements can be used to comply with purity class 2 according to ISO 8573-1:2010.
Main Features & Specifications
- High-density activated carbon for maximum adsorption
- Microfiber depth filters support high particle retention
- Silicone-free version available (AKP)
- Compatible with EG, SG, HD, P-EG, and PG-EG housings
Applications
- Breathing air systems
- Sterile air prefiltration
- Industrial filling and packaging processes
