The honeycomb structure air cleaner filter has obvious advantages. The low fluid pressure loss through the structure is due to the uniform treatment of some configurations of a parallel channel, which greatly increases the filtering area, and the thin partition channels, many honeycomb channels, to eliminate harmful gases more thoroughly.

In August 2015, Donaldson Company of the United States launched a new generation of DFE dust collectors in the Chinese market, which represents the industry leading design concept and manufacturing process. Compared with traditional cartridge filter, DFE filter can simplify the number of cartridges used (up to 40%) under the same air intake and filtration efficiency, which can save initial equipment investment for you. At the same time, the DFE dust collector occupies a smaller area and has a more compact structure.

Using Ultra-Web Donaldson patented filter material, the DFE filter cartridge has maintained low pressure drop for up to three months, and will maintain this state. DFE represents the leading dust removal technology, with the use of Ultra-Web #6 filter material, the overall dust removal efficiency is higher, and the effective saving of dust collector area.

Intelligent Inlet Design

Unique pulse shaping tube makes the energy of compressed air evenly distributed on the filter cartridge. Intelligent sedimentation zone acts as the pre-separation of large particles of dust, and reduces the wear of the filter cartridge, while making the pressure loss lower.

The counterfeit one has only one label and no certificate label. (It should be noted that individual models of authentic Donaldson filter cartridges sometimes do not have certificate labels. These filter cartridges are usually packed with more than one label, and there will be certificate labels in the outer packing box together.) Then we are looking at the product information label (in this case called the big label) which records the number, origin, category, date of production and other information of this type of air filter. You can see a row of barcodes with two large labels of air filters (the red ellipse circle has been marked).

Donaldson has many factories in the world, such as: the United States, Japan, Canada, Indonesia, Mexico, China, Singapore, Germany, Italy, Turkey, Saudi Arabia and so on. The origin of different types of filter element will be different.

Air cleaners offer two-stage filtration in a single, compact unit that delivers superior filtration performance using PowerCore Filtration Technology. This non-metal air cleaner (except for cover clamps) is ideal for medium and heavy-duty equipment operating in severe dust environments.

The cleaning step is:

1. Dirty air enters an open flute on the dirty air side of the filter.

Because the flute is sealed on the opposite end, air is forced to pass through the filter media into an adjacent fluteClean Air

     2. The filtered air exits the filter through a flute that is open on the clean air side of the filter

Features

• More compact at a given performance level than standard pleated filters

• Non-metal filters

• Improved engine protection; no media movement, expansion, contraction or bunching

• Improved contaminant encapsulation; dust and dirt stay contained in filter during servicing

• High efficiency integrated pre-cleaner improves filter life

• Improved handling and maintenance; lighter and smaller

• Easily serviced; no tool required to remove or replace cover

• Can be used with scavenge line or VacuatorTM valve

• Built in mounting brackets eliminate the need to purchase separate mounting bands

Applications

•Air Cleaners are suitable for light to medium dust conditions with engine airflow ranges up to 974 cfm.

• Air Cleaners are suitable for offroad equipment operating in medium to heavy dust conditions with engine airflow ranges up to 1490 cfm

• Obround housing shape allows for narrow or wide mounting orientation

• Models have either end or side filter service access

• Sustained temperature tolerance: -40oC to 82oC

• Scavenged system components - exhaust ejectors and check valves are available for PSD air cleaner Models

When Selecting an Air Cleaner

Determine the airflow requirements of your engine, then find the corresponding cfm airflow in the table below. The restriction numbers (shown in inches of water) indicate the approximate initial restriction of each model air cleaner at that cfm.If there are two air cleaner models

that fit your parameters, choosing the one with the lower restriction will provide longer filter service life. When calculating total initial restriction of the entire air intake system, include the restriction of the entire air intake system, include the restriction caused by ducting,elbows, and pre-cleaners

Service Instructions

1.Check the Restriction

Replace the filter only when the restriction level has reached the maximum recommended by the engine or equipment manufacturer or on a regular scheduled service.

2.Check Vacuator Valve & Pre-Cleaner Tubes

Shut off the engine. Inspect the Vacuator™ Valve (or scavenge line) for damage. If damaged, replace. If plugged or full of contaminant, check the pre-cleaner tubes, which should be free of contaminant. If plugged or excess contaminant is visible, the pre-cleaner tubes will need to be cleaned.

To clean the pre-cleaner tubes, remove the housing service cover and Vacuator Valve and leave the filter installed (to avoid dust from entering the air induction outlet). Use a low-volume of compressed air to gently blow out the separator tubes. The compressed air can be pushed through both sides of the tubes AND from the drop tube

where the Vacuator Valve attaches.

If compressed air is not available or the use of compressed air was not effective due to dried contaminant within the housing, remove the air cleaner from the machine, cover the air intake pipe to prevent contaminant. Remove the primary and secondary filters and Vacuator Valve. Use a low pressure water (e.g., garden hose) to clean the tubes and inside of housing. Direct the flow of water through the separator tubes from both ends and repeat as needed to clean out the housing. Spray out the Vacuator Valve port, alternating between it and the separator tubes. Make sure that all internal housing surfaces are dry prior to reinstalling the filters, Vacuator Valve, and unit on the machine.

NEVER use a pressure sprayer to clean out the air cleaner housing while it is installed on the machine. Avoid using excessive pressure when spraying out the separator tubes as damage can occur.

3.Remove the Primary Filter

For end service pull the filter out of the housing.For side service push down on the service handle to tilt the filterto a 5o angle. This will loosen the seal. Then, pull up on the service handle to remove the filter from the housing.

4.Visually Inspect the Safety Filter

Remove any excess dirt and wipe out the housing with a damp cloth before servicing the safety filter. Visually inspect the safety filter but do not remove it unless it is damaged or due for change out. Verify that the safety filter is properly seated in the housing. The safety filter should be replaced every three primary filter changes.

The safety filter should be replaced every three primary filter changes.

5.Remove Safety Filter if Indicated or if Excessively Contaminated

To remove the safety filter, use the plastic handle on the face of the safety filter.Pull the filter toward the centre of the housing and remove it. Ensure that the outlet tube sealing area is clean and undamaged. If the safety filter is removed and the new filter is not to be installed immediately, be sure to cover the seal tube with a cloth so that dirt is not admitted. After removing the safety filter, wipe the air cleaner housing interior and seal surfaces with a clean, damp cloth.

This servicing information is provided as a best practices guide. It is not intended to replace or supersede the service instructions supplied by your engine or vehicle manufacturer. Note: your air cleaner service cover may be in a different position than shown.

6.Inspect the New Filters

Visually check for cuts, tears or indentations on the sealing surfaces and the media pack before installation. If any damage is visible, do not install.

7.Replace the Safety Filter

If replacing the safety filter, use the plastic handle. Slide the filter at an angle into the outlet side and push it in place until the filter seats firmly and evenly within the housing.On side-service access models, insert the safety filter tab into the positioning slot before pushing the filter into place.

8.Insert the Primary Filter

For end service access models, slide the primary filter into the housing until the gasket seats against the housing. For side service access models, slide the filter down at approximately a 5o angle until it makes contact with the end of the housing. Rotate the filter toward the outlet section to complete the seal.

9.Replace the Service Cover

For end service access models with hinge tabs, insert the hinge tabs into the housing, tilt the service cover into place and secure latches. For end service models without hinge tabs, put the service cover into place and secure the latches. For side-service access models, place the service cover in position and fasten the metal or rubber (PSD14) latches. If the cover doesn’t seat, remove and re-check the filter position and access cover orientation.

10.Inspect the Entire Air Cleaner System

Make sure that inlet and outlet connections are in good condition.Torque to and do not exceed 40 in•lb.Replace rubber connectors if necessary and reset the service indicator.

For some suspended solids and micro-particles, general filtration equipment may not be able to completely remove them. Donaldson developed a honeycomb filter. As the name implies, like a honeycomb, the aperture is large outside and small inside. It has excellent deep cleaning effect and high load capacity of filter slag. That's the big feature of Donaldson's hive filter.

Why do you want to use a honeycomb structure? Because honeycomb structure can reduce the appropriateness of fluid pressure when passing through the structure, in a parallel channel, the unified treatment of diversity enlarges the area of filtration. And the partition wall is very thin, honeycomb-like multi-channel filtering, can make harmful gas elimination more thoroughly.

Donaldson honeycomb filter breaks the traditional form of filter element. It is a special filter product. It makes full use of the space of the equipment, improves the efficiency and ability of filtration, makes it have greater performance advantages in the use process, increases the space for containing pollutants, and prolongs the use time of the filter equipment.

Such excellent stability performance, together with the fact that all the materials of the products are recyclable materials, responds to the current government's environmental protection policy. With Donaldson's rich experience and perfect technology, the quality of Donaldson's honeycomb filter is more assured and the customers are more assured to use it.