Donaldson Company
Founded in 1915, Donaldson Company boasts more than a century of experience in providing filtration and emission‑control solutions. Headquartered in Minnesota, USA, the company employs over 12,000 people worldwide and operates 48 logistics centers and manufacturing facilities globally.
Donaldson is a leading provider of filtration systems for the mining and construction equipment industries, supplying filtration solutions tailored to mainstream mining and construction machinery. With an exceptionally broad product portfolio covering a wide range of filter elements, Donaldson holds a commanding position in these sectors compared to other brands. Its aftermarket products meet or exceed original equipment (OE) standards, enabling customers to extend service intervals and reduce maintenance costs. By effectively protecting critical components such as engines and fuel systems from premature wear and damage, Donaldson filters help lower repair expenses for major machine parts, while boosting equipment uptime and cutting overall production costs.

The main advantages of Donaldson filter elements are as follows:

● Functions of the Donaldson air filter:
The lifespan of an engine depends on the rate at which it is exposed to abrasive contaminants. As little as one gram of particulate matter per horsepower can be enough to destroy an engine. Donaldson air filters utilize advanced filter media such as specialized cellulose and Utra-Web, achieving filtration efficiencies ranging from 99.9% to 99.999%. These filters effectively prevent sand, dust, carbon soot, water, and other particulates from entering the engine, thereby protecting it from damage while ensuring that sufficient air is supplied for proper combustion.

● Functions of the Donaldson fuel filter:
Increasingly stringent emission standards demand more complete combustion in engines, while high-pressure fuel systems have become more sophisticated and costly. Moisture and particulates in the fuel can damage these expensive components. Donaldson’s interceptor-type oil‑water separator (first stage) removes 90% of water and 99% of large particles, providing effective protection for the fuel transfer pump. Donaldson’s fine filter (second stage), featuring SynteqT filter media, captures 99% of fine particles with a filtration rating of 3–5 microns, thereby safeguarding high‑pressure fuel pumps and injectors.

● Functions of the Donaldson oil filter:
Dry friction caused by insufficient lubrication during cold engine starts, along with fine particles and debris, soot, additive depletion, and metallic wear debris, can all lead to premature engine wear and damage. Donaldson oil filters utilize Synteq filter media, which offers excellent low‑temperature flow characteristics, preventing dry friction during cold starts and efficiently capturing contaminants in the oil to protect the engine from wear. The high‑capacity synthetic filter media also extends the service intervals for oil filter replacement.