Key Filter insert, KFi

The CJC® Key Filter insert, KFi is used in the CJC® Key Filter unit and is ideal for filtration of mineral and synthetic based

  • gear oils
  • hydraulic oils

Filtration capability

Particle removal
All CJC® Key Filter insert has an oil filtration degree of 3 µm (micron) absolute. This means that 98.7% of all solid particles larger than 3 µm and approximately 50% of all particles larger than 0.8 µm are retained in one pass. The dirt-holding capacity of a Key Filter insert is 2 litres of evenly distributed solids.

Degradation products
Oxidation by-products, resin / sludge, and varnish are retained by the cellulose material. The cellulose will retain appr. 1.5 kg of degradation products.

Water removal
The water absorption potential is up to 50% (i.e., 1000 ml H20) of the total contaminant holding capacity.

The CJC® Key Filter insert (KFi) consist of several discs bonded together, based on a new special design with a unique pattern. 



The material is made of 100% natural cellulose fibers from sustainable resources.



Product Sheets

Key Filter insert, KFI, CJC_PSFI3034-UK