Metal & Machining

When it comes to metal fabrication and machining, the equipment’s surrounding ambience during operation is key. Dry, clean and oil-free air environment is paramount to metal fabrication as a guarantee of precision, quality and cost-effectiveness. Whether it is forging, laser, plasma cutting or engraving, our customers choose us to upgrade their process and cut costs.

Under the broad term machining, we cluster the need for precise air control to deliver optimal performance and longer equipment lifetime. Our air filter equipment exceeds expectations by checking all the boxes while lowering CO2 emissions, protecting worker’s health and warranting compliance to existing rules and legislation.

Our range of durable filters safeguard the reliability of industrial equipment and prolong service life while dramatically reducing overall operational costs.

Products for Metal Fabrication & Machining

Compressed Air & Gas

Our filter elements and housings for compressed air and gas are engineered to provide lower pressure drop, longer filter life, quick and easy element change-outs and more predictable maintenance.


We manufacture refrigerated compressed air, adsorption and membrane dryers to meet your specific air quality requirements.

Filter Housings

Donaldson filter housings are used to purify air and technical gases. We offer both non-sanitary and sanitary 3-A filter housings, both T-type and in-line as well as high pressure housings.

Filter Elements

From stainless steel mesh prefilters to sterile membrane final filters, our high-quality filter elements will help you optimize your process.


From utility water used during manufacturing processes to sterile ingredient water, Donaldson's range of liquid filtration solutions will help preserve the integrity of your product.

Filter Housings

We offer a broad range of filter housings from high quality polypropylene to stainless steel for purification of liquids in the food, beverage, chemical, pharmaceutical, coatings and other process industries.

Filter Elements

Protect product integrity and enhance product performance with our cartridge filter elements for liquid process filtration.

  • Control air
  • Air for air operated tools and cylinders
  • Cooling and heating processes
  • Painting
  • Cutting and welding
  • Oil removal before cutting
  • Drying pipelines from water
  • Liquid cooling process
  • Assist gas for cutting process
  • Laser beam path purging
  • Laser welding process
  • Breathing air equipment
  • Air for measuring or metering systems
  • High pressure test equipment

Humidity - A Mysterious Contaminant. How to Filter It and Why

Water is often overlooked as a contaminant. Learn how to safely remove and discharge water collected from compressor systems.

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FAQs: Process Filtration

Commonly asked about process filter elements, from frequency of filter changeouts to the difference between sterile and sanitary.

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