Donaldson has been committed to product development and technological innovation, and has maintained its leading position in the filter industry for many years.

Donaldson's filters are used in a wide range of applications, mainly in the following eight areas:

1. Metallurgy: used for filtration of hydraulic systems of rolling mills and continuous casting machines and filtration of various lubrication equipment.

2. Petrochemical: Separation and recovery of products and intermediate products in refining and chemical production processes, purification of liquid purification, tape, optical discs and photographic film in manufacturing, oil injection of well water and natural gas in addition to particle filtration.

3. Textile: Purification and uniform filtration of polyester melt in the drawing process, protection and filtration of air compressor, degreasing and dehydration of compressed gas.

4. Electronics and pharmaceuticals: pre-treatment filtration of reverse osmosis water, deionized water, pretreatment filtration of washing liquid and glucose.

5. Thermal power and nuclear power: gas turbine, boiler lubrication system, speed control system, bypass control system oil purification, feed water pump, fan and dust removal system purification.

6. Machining equipment: lubrication system for papermaking machinery, mining machinery, injection molding machines and large precision machinery and purification of compressed air, dust recovery and filtration of tobacco processing equipment and spraying equipment.

7. Railway internal combustion engine and generator: filtration of lubricating oil and oil.

8. Automobile engines and engineering machinery: various hydraulic oil filters, diesel filters and water filters for air filters, oil filters, fuel filters, construction machinery, ships and trucks for internal combustion engines.