A 38/20 CJC Filter Insert

The CJC™ A 38/20 Filter Insert is manufactured to deliver deep, fine filtration with high dirt-holding capacity and low operating cost. Made from bonded cellulose discs, this insert removes particles, water, oxidation by-products, varnish, and acidity all in one filtration process.

Designed with a relatively higher pressure drop compared to other CJC™ inserts, the A-type element is most effective with low-viscosity or warm oils. It has been proven in real-world applications across thousands of systems and is widely used in the CJC™ Fine Filters HDU series.

Typical Applications

This filter insert is ideal for fine filtration of:

• Engine lubricating oils

• Hydraulic oils

• Turbine lubricating oils

• Gear oils

• Honing oils

• Quenching oils

Filtration Performance

All CJC™ Filter Inserts provide an absolute filtration degree of 3 µm, meaning:

• 98.7% of solid particles larger than 3 µm are retained

• Approximately 50% of particles larger than 0.8 µm are removed in one pass

The A 38/20 design offers a dirt-holding capacity of approximately 2.5 litres of evenly distributed solids, helping to extend service intervals and improve oil condition.

Water and Contaminant Handling

The cellulose media also absorbs water and retains oil degradation products, slowing down oil ageing and reducing wear on components.