Acidity Removal
Ion Exchange / Acidity Removal Units for Reliable Oil Systems
CJC® Acidity Removal Units are designed to reduce Total Acid Number (TAN) and remove harmful acidic compounds from lubricating, hydraulic, turbine, and transformer oils. By stabilising oil chemistry, acidity removal protects components from corrosion, extends oil life, and improves long-term system reliability.
Primary applications: turbine control oils, transformer oils, ester-based fluids (HFD), engine and gear oils exposed to oxidation and thermal stress.
Why Acidity Removal Is Needed
As oil ages and oxidises, acidic by-products form and accumulate in the system. Rising acidity accelerates corrosion, degrades insulation properties, and shortens both oil and component lifetime.
Typical consequences of high acidity include:
- Corrosion and etching of metal surfaces
- Increased wear of bearings, valves, and pumps
- Reduced dielectric strength in transformer oils
- Higher risk of unplanned shutdowns and equipment failure
CJC® Acidity Removal Units target these acidic compounds before damage occurs, keeping oil chemistry stable and systems protected.
How CJC® Acidity Removal Technology Works
CJC® Acidity Removal Units combine ion exchange media with high-efficiency offline filtration.
Process overview:
Oil is continuously circulated through the unit offline
Acidic compounds are neutralised and removed via ion exchange
Fine filtration captures particles released during neutralisation
Treated oil returns to the system with reduced TAN and improved stability
This approach allows acidity control without interrupting operation, supporting long-term oil reuse.
CJC® Acidity Removal Unit Models
CJC® Acidity Removal Units are available in multiple configurations to match oil volume and system requirements.
Proven Results with an Acidity Removal Unit
Key Capabilities
Customer Benefits
Reduce Total Acid Number (TAN)
Neutralise corrosive acidic compounds
Stabilise oil chemistry and resist oxidation
Support long-term oil reuse without flushing
Lower risk of corrosion-related failures
Extended oil and component lifetime
Fewer unplanned stoppages
Reduce total operating and maintenance costs
Proven Results with an Acidity Removal Unit
What customers typically achieve*
Up to 50%
TAN reduction with lower total acid numbers in lubricating and insulating oils.
3-5 Years
Extended oil service life by slowing acid-driven oxidation and degradation.
30-40%
Reduction in corrective maintenance actions related to acidic oil conditions.
24/7
Continuous offline acidity control without interrupting system operation.
*Results depend on application, oil type, operating conditions, contamination levels, and other outside factors
Clean Oil Is Not a Recommendation.
It Is a Reliability Strategy.
Understand contamination mechanisms, ISO codes, water control, and how to extend oil and component lifetime.
Industries Affected by High Oil Acidity
CJC® Acidity Removal Units are used worldwide in applications where oil oxidation and acid formation threaten reliability:
Control oil acidity and protect your equipment.
Let our specialists assess your oil condition and recommend the right acidity removal solution for your system.