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Whether you are using a water-based or an oil-based coolant system, coolant filtration is essential to maintain industrial machinery. Keller’s coolant filtration products remove sludge and chips from coolant sumps – including particles as small as 1 micron in size.

In-line bag filter assemblies are ideal for protecting cutting tools and spindles.

Bag filter magnetic assemblies clean steel and iron chips from coolant or oil and extend the life of the filter bags.

Portable pump/filter systems can remove both floating and settled chips and fines from coolant or oil. Flow rates as high as 20 GPM, and filtration down to 1 Micron.


Permanent rare earth magnetic rod placed in filter bag cleans steel and iron chips from coolant or oil, extends life of filter bag 5 times or more.


Keller In-Line Bag Filters remove chips and fines from cutting oil or coolant to as fine as one micron. Price includes tripod mounting stand, pressure gauge, and 5 filter bags.