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We have been manufacturing our extensive line of quality coolant filtration products in Rockford, Illinois, USA for 110 years. Machine tool coolant filtration product offerings include world renown Kleenall Filters for grinding and chip making machines, along with pressure and vacuum filtration systems that offer both permanent and disposable media filtration. Coolant filtration systems as small as 10 GPM for individual machines up to total plant central coolant filtration systems as large as 20,000 GPM are well within our scope. Barnes International is committed to the process of continuous improvement and dedicated to providing the highest quality products and services that meet or exceed our customers requirements.

The HydroFlow Star Filter is a patented, automatic system using a pump to draw liquid through a permanent media element with an optional feed of cellulose filter-aid for extra fine filtration. This system can obtain filtration as low as 1-3 microns dependent on the application and allows us to also filter materials like glass and carbide particles as well as the normal alloys, aluminum and steel applications.

Applications that require this level of filtration include grinding, machining, superfinishing and rolling mills working steel, carbide, glass, ceramic, aircraft alloys, cast-iron and aluminum. Filter operation is simple and is very easy to service making it ideal for blinding applications.

The Star Filter has advantages, as well, that help it to stand out from other similar products. There is a large filter area, 2-stages of filtration, depth filtration using cellulose, and a pressurized wet seal which virtually eliminates solids by-pass. Other advantages include regeneration of entire surface maintains low velocity, element backwash, no moving belt, and no vacuum box.


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814 Chestnut Street
P.O. Box 1203
Rockford, IL 61105-1203


555 Van Camp Road
Bowling Green, OH 43402