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Row of glass jars containing different oil samples with varying colours and contamination levels, illustrating different oil types and conditions.

Select Your Oil Type and Address the Real Contamination Challenge

Select Your Oil Type

How CCJENSEN makes the difference

C.C.JENSEN fine filtration solutions continuously remove even the smallest particles, water, and oxidation residues from all industrial oils. This includes hydraulic, gear, lube, diesel, and transformer oils. The result is cleaner-than-new oil, far less wear, and a more stable process. Thousands of industrial plants, wind farms, and power stations rely on CJC filters to extend oil life three to four times, reduce downtime, and save both oil and components

The real-world impact

Choose your oil. Target the real problem.

Different oils face different contamination challenges. Whether it is water in your hydraulic oil, wear particles in your gearbox, or sludge in your turbine lube system, the right filtration setup keeps your process running and your oil fit for use year after year.

Each oil type has its own weak points and best-fit CJC solution pattern. Select your oil type below to see common failure modes, proven results, and recommended filters.

Industrial hydraulic system with cylinders and hoses used in heavy machinery.
Hydraulic Oil

Sensitive to fine particles and water that cause valve sticking, pump wear, and system instability.

Close-up of lubricated metal gears inside an industrial gearbox.
Gear Oil

Exposed to heavy wear particles, dust, and moisture that lead to gear pitting, bearing failure, and noisy operation.

Engineer inspecting a large turbine rotor inside a power generation facility.
Turbine Lube Oil

Prone to oxidation, varnish, and sludge build-up that reduce efficiency and shorten bearing life in gas, steam, and hydro turbines.

Large marine engine room with multiple engines and lubrication systems.
Engine Lube Oil

Contaminated by soot, oxidation, and metal wear particles that accelerate engine wear and shorten drain intervals.

Electrical transformer installation at an industrial power facility.
Transformer Oil

Degraded by moisture, particles, and oxidation residues that lower dielectric strength and insulation performance.

Industrial power plant machinery and piping used in turbine or control systems.
Phosphate Ester Oil

Chemically unstable when exposed to water or heat, leading to acid formation and corrosion in EHC control systems.

Fuel storage tanks and railway tank cars used for diesel fuel storage and transport.
Diesel Fuel

Vulnerable to water, microbial growth, and fine solids that damage injectors and reduce combustion quality.

Heated metal component being quenched in oil during an industrial heat-treatment process.
Quench Oil

Carbon residues and oxidation reduce cooling efficiency and surface quality in heat-treatment systems.

Wooden blocks spelling EAL placed on moss representing environmentally acceptable lubricants.
EAL

Water ingress and oxidation degrade performance and can cause corrosion in marine stern tubes and thrusters.

Key Challenges in Oil

Droplet icon with small particles representing solid particle contamination in oil.

Particles in Oil

Hard particles from wear, dust, or new oil accelerate surface damage and block narrow oil passages. Even microscopic debris doubles or triples wear rates.


Result: Pump and valve wear, scoring, loss of precision, and system failures.


CJC Solution: CJC Fine Filter Units remove particles down to below one micron, maintaining ISO cleanliness levels that exceed OEM targets.

Learn more about particles in oil
Droplet icon representing oxidation and sludge formation in oil.

Oxidation and Sludge

Over time, heat and oxygen react with oil to form sticky oxidation products and sludge. These deposits settle in tanks, block filters, and create varnish films on components.


Result: Restricted flow, increased friction, overheating, and reduced efficiency.


CJC Solution: Continuous depth filtration removes oxidation residues and varnish precursors, keeping oil clean and free-flowing.

Learn more about Oxidation and Sludge
Droplet icon with water bubbles representing water contamination in lubricating oil.

Water in Oil

Water enters through condensation, leaks, or process exposure. It reduces lubricity, accelerates corrosion, and promotes oxidation and sludge formation.


Result: Rust, sticky valves, cavitation, and reduced bearing life.


CJC Solution: CJC PTU Water Removal Units or Desorbers remove both free and dissolved water, keeping the oil dry and stable.

Learn more about Water in Oil
pH droplet icon representing increased acidity and chemical degradation in oil.

Acidity and Degradation

Oxidation, thermal stress, or chemical reactions (especially in phosphate ester oils) create acids that attack metals and seals.


Result: Corrosion, loss of additive performance, and shorter oil service life.


CJC Solution: CJC depth filters absorb acids and prevent further chemical breakdown, extending both oil and component life.

Learn more about Acidity and Degradation