Engineered for Reliable Performance

The longstanding, most influential cartridge collector in industrial air filtration history, the Donaldson® Torit® Downflo® II (DFT), delivers optimum performance and is one of the best values available in today′ s marketplace. A leader in the industry for 20 years with thousands of successful installations in place, DFT dust collectors ensure steadfast, trouble−free operation. The DFT advantage can be found in the collector′ s patented design and components. Now featuring a ledgeless design in combination with proprietary Ultra-Web® filter media and patented cleaning technology, the DFT continues its strong performance in traditional applications such as metalworking. It also generates new interest and respect in process applications where ledgeless construction is often a requirement. Providing higher efficiency and smaller footprints than any baghouse collector or even other cartridge collectors, DFT adds up to long-term savings and improved performance in many applications.

DFT Offers:
• Ledgeless construction Eliminates dust buildup and accommodates wash down environments.
• Compact design Minimizes floor space.
• Powerful performance Patented ExtraLife™ Filter Cleaning System provides 30% more cleaning energy.
• Cost savings Fewer filter changeouts, reduced filter disposal costs, less energy usage.
• Reliability Exceptional results for over 20 years and counting.
• Easy system set up
• Easy maintenance
• 10-year warranty

Sizes & Operations

Pulse Cleaning TechnologyExtraLife Filter Cleaning System uses proprietary, computer−modeled pulse cleaning technology to easily "pulse off" dust from the surface of the filter, improving filtration efficiency and prolonging filter life. The red lines in the illustration show the increased pressure at the front of the Downflo filter generated by the ExtraLife system. The blue line shows the pulse signature of a standard cartridge collector.

Cartridge Filter Technology

Ultra-Web® Nanofiber Filter MediaThe distinguishing factor in Donaldson Torit′ s cartridge filters is nanofiber filtration technology, which traps more dust on the surface of the filter than conventional depth loading types of filter media such as cellulose, polyester or cellulose/polyester blends. The resulting dust cake is easily cleaned off during the automated collector cleaning cycles, ensuring longest filter life and highest efficiency rated MERV* 13 based on ASHRAE 52.2 test standards.

DFT Filter Media PleatsShorter and stiffer filter pleats help minimize dust entrapment and simplify filter cleaning. By reducing the height of the filter pleats from the standard 2 inches to 1.5 inches, the pleat wall is less likely to collapse or bend, which can trap dust and prevent its release.

DFT Cartridge FiltersDFT dust collectors′ patented downward airflow design delivers highest filtration performance while using less energy. The DFT collector, its patented ExtraLife Filter Cleaning System, and Donaldson Torit′ s filter cartridges together are an unbeatable system. Choose from our superior line of filters to complete the most powerful dust collection solution available.