Ultra-Web® Nanofiber TechnologyproveN, advaNced NaNofiber air filTraTioN TechNology

Donaldson introduced

Ultra-Web® Technology

to industrial applications

more than 28 years ago

and to the diesel engine

market over 17 years ago.

The robust nature of its manufacturing process

coupled with its patented chemistry means

Ultra-Web Technology provides a durable filtration

solution in the high temperature and humid

environments experienced by diesel engines.

Ultra-Web Technology offers a higher initial

efficiency compared to standard cellulose media,

has very high efficiency throughout a filter’s life,

provides excellent loading in sub-micron particulate

(e.g. exhaust soot), and can even be pulse-cleaned

in applications such as military vehicles.

2

Ultra-Web® Technology Delivers

high initial efficiency • high soot loading

longer filter life • less waste

Enlarged Top Views of Media (at the same magnification)

Ultra-Web nanofibers have submicron diameters and small interfiber spaces, which result in more contaminant being captured on the surface of the media and lower restriction.

Cellulose fibers are larger than Ultra-Web® nanofibers, and have larger spaces between the fibers, causing contaminant to load in the depth of the media and plug the airflow path; resulting in higher restriction and less capacity.

Higher Efficiency = Better Engine Life

In laboratory and field tests, Ultra-Web air filters provided better engine protection by allowing less contaminant to pass through the media than cellulose air filters. Filters with Ultra-Web Technology can reach 99.99% efficiency.

Higher Contaminant Loading = Longer Filter Life

Ultra-Web air filters hold up to five times more contaminant than cellulose air filters, making them ideal for extended maintenance intervals for on-highway trucks.

Capacity (Tested with Submicron Particles) Filters with Ultra-Web Technology Range of Conventional Cellulose Media

Efficiency (Tested with Submicron Particles) Filters with Ultra-Web Technology Range of Conventional Cellulose Media

White circles represent the diameter of a 2µ and a 5µ particle.

Comparative Cross Section

Lab Test ResultsStructural Views

Cellulose Ultra-Web®

Cellulose Media

Ultra-Web Media

Ultra-Web® nanofiber technology causes submicron contaminant to load on the surface rather than dispersing throughout the depth of the filter where there is less area for the air to flow. Therefore, where the contaminant is primarily submicron in size, filters with Ultra-Web technology cause less restriction than conventional filters with cellulose media. The smaller, interfiber spaces of Ultra-Web nanofiber technology have higher efficiency and capture more contaminant. Capturing smaller and more contaminants leads to better engine protection – no matter where your vehicle is operating.

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Intake systems with Ultra-Web and PowerCore® G2 Technology deliver even greater advantages: space efficiency; the freedom to design unique configurations; superior engine protection; and overall design simplicity.

Conventional Cellulose Air Cleaner

PowerCore® G2 Air Cleaner

Air Cleaner Size Comparison

Donaldson has the ability to customize the filtration performance of Ultra-Web technology to match a specific OEM application.

Combined with PowerCore G2 Technology, our second generation of the original PowerCore Technology you can reduce your overall intake system size by nearly two-thirds the space of older, conventional designed intake systems.

+®

The ultimate intake system=

Improves EquipmentEnd users using Ultra-Web filters see improved engine protection and power plus lower life cycle costs.

Enhances Filtration

Ultra-Web Technology adds value by delivering high efficiency filtration for increased engine protection and extended service intervals to reduce your operating costs.

Ultra-Web Technology is durable, robust and designed to perform in extreme temperature and humidity conditions.

Protects the Environment

Ultra-Web filters offer a “greener” place to live with fewer filter changes and less waste disposal.

Filtration efficiency (%) and dust passed after exposure to 1 gram of dust (approximately 100 hours

of operation) for a typical off-road application.

Efficiency Matters!99.0% 10 grams

99.9% 1 gram

up to 99.99% 0.1 gram

PowerCore® Technology works well in many configurations into various shapes - round, obround and panel.

AConventional Cellulose Filter

PowerCore® G260% Smaller than A

Filter Size Comparison

Donaldson Company, Inc.

PO Box 1299

Minneapolis, MN

55440-1299

www.donaldsonOEMfiltration.com

North America 866-511-7610Mexico +52-449-910-6150Latin Am. & Caribbean +52-449-910-6150Brazil +55-11-2119-1604Europe +32-16-38-3811

Brochure No. F111275 ENG (09/11)© 2011 Donaldson Company, Inc. Donaldson Company, Inc. reserves the right to change or discontinue any model or specification at any time and without notice. Printed in the U.S.A.

South Africa +27-11-997-6000South East Asia 65-6311-7373Greater China 852-2405-8388Japan 81-42-540-4112Australia 61-02-4350-2033India +91-124-2290060Korea 82-2-517-3333

17 Years of Proof!In military vehicles operating in demanding environmental conditions, Donaldson supplies self-cleaning air cleaners with Ultra-Web Technology to meet the demanding specs for engine protection, filter service, improved fuel economy and increased engine protection.Ultra-Web nanofiber technology applied to a PJAC™ (Pulse Jet Air Cleaner) extends the operating time by more than 10 times for the U.S. M1 tank with a turbine engine.

Blue filters with Ultra-Web Technology in Donaldson SRG and SSG air cleaners applied to mining haul trucks deliver: higher capacity (as much as 5x more) for longer filter life; higher efficiency for longer engine life; and extended maintenance intervals for lower operating costs.

For on-road trucks, Ultra-Web Technology in Donaldson Endurance™ air filters extends service intervals. |Donaldson offers a "Twice the Life" guarantee for on-road vehicles. Calculate your savings over standard cellulose filters at www.donaldsonendurance.com.

Cabin air filters with Ultra-Web Technology provide twice the life of a similar depth-loading cabin air filter operating at the same pressure drop.

Donaldson Delivers

Filters featuring Ultra-Web are always blue!

Advanced Nanofiber Filtration Technology

PJAC™

Ultra®

PJAC™