How you can quickly and easily maximize the life of hydraulic oil, pumps, valves and cylinders

Hydraulic oil filtration in the maritime industry: CJC® Hydraulic Filter for highest oil cleanliness

How you can quickly and easily maximize the life of hydraulic oil, pumps, valves and cylinders

Hydraulic oil filtration in the maritime industry: CJC® Hydraulic Filter for highest oil cleanliness

Filtration and maintenance of hydraulic oil is extremely important for cranes, excavators, winches, hatches and ramps if you …

must change the hydraulic pumps, valves and cylinders regularly due to wear,
are annoyed by sticky and poorly controllable valves,
wish to save your hydraulic oil and extend oil change intervals and
don’t want to endanger processes and supply chains due to failures and malfunctions in the hydraulics.

Your solution: a CJC® Hydraulic Filter in an offline circuit. Achieve the highest oil cleanliness for maximum protection of hydraulic oil and components — quickly, efficiently and cost-effectively.

Get in touch with your maritime contacts now

Challenge

Particles and water lead to a high degree of contamination and accelerate oxidation processes and additive consumption. This affects viscosity, lubricating film thickness, shear forces, air separation capacity and the wear protection properties of the hydraulic oil – important oil condition values that decide on an oil change. Particles and water in the oil, followed by oil ageing and choosing the wrong type of oil, are considered the critical few causes that cause the most damage. They cause abrasive wear, fatigue wear, corrosion, cavitation, varnish, sludge- and resin-like deposits (valves, main flow filters, tank, pipelines, etc.) and lead to acidification of the oil and thus to further corrosion. A vicious circle.

The cleaner and drier the hydraulic oil, the more stable the oil condition values and longer the oil life — and the longer the service life of components

Damages and consequences of contaminated hydraulic oil

Frequent oil changes and poor long-term effects of additives

Water and wear particles in the hydraulic oil accelerate oxidation processes and lead to a rapid breakdown of additives such as wear and corrosion protection and antioxidants. The viscosity increases and the resistance of the oil to shear forces decreases as a result of the constant oil degradation and the increase in impurities. Resin-like deposits also form in the hydraulic system (varnish) as well as acids that lead to corrosion. The more heavily and quickly the hydraulic oil becomes contaminated, the shorter the service life of the hydraulic fluid.

Caution with environment friendly oils:
Due to their low hydrolytic stability and oxidation resistance, most bio-oils already decompose very quickly upon contact with water. In some cases, they form stable water-in-oil emulsions, whereby the water droplets are finely distributed as a suspension throughout the oil system. As emulsified water is particularly harmful to hydraulics, it is important to use filter technology that continuously reduces the water content.

Lubrication effect & energy consumption

Impurities and oxidation processes, as well as emulsified water, cause hydraulic oil to increase in viscosity, which results in higher tensile forces within the system and higher energy consumption.

Caution with environment friendly oils with esters:
When water ingress, the viscosity decreases and the oil becomes thinner, which also influences the lubricating effect.

In both cases, there may be contact between the metallic surfaces and thus increased wear.

Corrosion, cavitation, micro-pitting and hydrogen embrittlement

Water enters the hydraulic system due to fluctuating ambient temperatures (condensation), defective seals or via the fresh oil as a result of errors during transfer, storage and handling.
Operators therefore use hydraulic oils that have an emulsifying effect when water enters to protect their hydraulics. At this stage, the water molecules are finely distributed between the oil molecules. Demulsifier additives help to improve water separation ability, but they can be used up quickly, especially in hydraulic systems on board of vessels.
Synthetic fluids and also environmental friendly oil such as HEES or PAG / PEG * may have a high saturation limit with respect to water, but water dissolved in hydraulic oil can also be released in the event of temperature and pressure fluctuations. As a result, a lot of water is suddenly released throughout the entire hydraulic system.

Water in combination with acids produced by oil oxidation have a highly corrosive effect.

Water in the oil causes numerous types of damage to the metal surfaces: Corrosion, cavitation, micro-pitting and also hydrogen embrittlement. Water also influences the viscosity and resistance to shear forces, which can lead to insufficient lubrication, and is one of the main catalysts for oxidation processes. It is therefore advisable to keep the moisture content in the hydraulic oil permanently as far below the saturation limit as possible!

*) e.g. PAG and PEG can have a saturation limit of over 10,000 ppm (=1%) in relation to water

Wear on pumps, valves and pistons

In highly sensitive and highly stressed hydraulic systems, pumps, valves and pistons wear out due to even the smallest particles due to tight tolerances. These enter the hydraulic system via the ambient air, in particular through the movement of the piston or via the tank ventilation. In addition, particles are constantly generated by wear within the hydraulic system, which is unavoidable due to the moving components. But even fresh oil often does not meet the quality and purity requirements recommended for hydraulic systems. The circulation of the particles in the hydraulic system increases their number faster and faster, resulting in a chain reaction of wear.

During oil ageing processes, reaction products are additionally formed, precipitating and depositing in load zones, stagnant areas or narrow passages in the hydraulic system. Easily recognizable as a solid, sticky layer on metal surfaces of, e.g. valves, pumps, coolers, pipelines and in the tank. Particles adhere to the sticky layer – an emery effect occurs, and wear increases rapidly (altered lubrication gap geometry).

For your hydraulic oil filtration, you should therefore attach great importance to a high filtration degree (absolute) and high dirt holding capacity.

Foaming hydraulic oil

Impurities, oxidation residues and an increased viscosity worsen the air separation capacity. Air bubbles in the hydraulic oil rise less easily. Foaming hydraulic oil leads to insufficient lubrication.

For hydraulic oil filtration, you should therefore use a filter technology that removes particles, water, oxidation residues and acids.

Get in touch with your maritime contacts now

Your solution: efficient hydraulic oil care

Efficient hydraulic oil care means continuously removing particles, water, oxidation residues and acids from the hydraulic oil (24/7). Fact is, only with permanently clean and dry hydraulic oil you …

achieve up to 10 times longer service life for hydraulics, pumps, valves and cylinders
minimize oil consumption and CO₂ emissions for even more sustainability on board
ensure reliably functioning valve technology and controllability at all times
protect the existing inline filters, which clog less often and require fewer filter changes
avoid unplanned downtime for smooth loading and unloading processes

Less oil consumption

Less maintenance

Higher reliability

hydraulic system, higher resource protection

Better protection of resources

Get in touch with your maritime contacts now

CJC® Hydraulic filter for efficient hydraulic oil care

Do you have poor cleanliness classes, a high water content and is your hydraulic oil heavily oxidized? Sticky deposits have already formed on pumps and valves? Then install a CJC® Hydraulic Filter for effective hydraulic oil filtration and to protect your hydraulic system. CJC® Hydraulic Filters ensure maximum oil cleanliness in the shortest possible time. Extremely high filter capacities and separation performance make our filter technology a cost-optimized solution.

Installation in the offline circuit

The own pump unit allows installation in a separate circuit (offline) and thus the continuous depth filtration and care of the hydraulic oil (24/7). The gear pump sucks in the hydraulic oil from the lowest point of the tank. The return takes place without pressure near the suction pump, so that the hydraulic system is always supplied with the clean oil.

Sensational separation performance

The CJC® Hydraulic Filter removes all impurities:

Wear particles and suspended solids

Achieve cleanliness classes up to ISO 12 (ISO 4406).

Water – free, emulsified and dissolved

for water content well below the saturation limit of the oil

Oxidation residues (varnish, sludge)

for a long-lasting stable oxidation rate

Acids

remove, neutralize and prevent

High dirt holding capacity and filtration degree

CJC® Fine Filter Inserts are depth filters with a filtration degree of 3 µm absolute and a retention rate of < 1 µm. The whole volume of the insert is made of numerous finely ramified fibres and offers an outer surface and, in addition, an inner surface – from 120 up to 150 m² per gram. That enables the extremely high dirt holding capacity – the higher, the longer the lifetime of the filter inserts.

Fact is, our dirt holding capacity is the market leader.

Condition Monitoring

CJC® Hydraulic Filters can optionally be equipped with sensors for automatic online monitoring of the filter and oil condition. Depending on the selected system, up to nine sensors can be selected – whether for oil moisture, oil temperature, particles (4-250 μm), wear particles (40-1,000 μm), oxidation rate, filter pressure and/or hydraulic utilization. You can configure alert limits and warnings to prematurely detect deviations from normal conditions and counteract them.
Our oil condition sensors provide detailed real-time data and allow conclusions about the hydraulic condition due to the high data density.
Our intuitive operable cloud applications have a clearly arranged dashboard to visualise the sensor data. The highly developed algorithms integrated into the premium monitoring package automatically evaluate and interpret the data – ideal for critical hydraulic systems where failure quickly has costly consequences. Optionally, the sensor data can be transferred to your own system via various interfaces.

CJC® Hydraulic Filters: Filter and maintain your hydraulic oil

Contact your maritime technical salesperson now

Let’s talk about your hydraulic systems, your hydraulic oil and the specific challenges. We filter every hydraulic oil. It does not matter whether you use mineral oil or biodegradable hydraulic oil. Together with you, we maximize the service life of the oil filling, pumps, valves and cylinders.

Receive a personal consultation and a non-binding offer about a CJC® hydraulic filter for the efficient care and filtration of hydraulic oil.

Write to me or give me a call.

Andreas MannKey Account Manager - Marine Segment

Mobile: +49 (0)151 12 88 38 05

E-mail

That say our customers

“We are very satisfied with the test results and intend to install further CJC® Hydraulic Filters.”

To the practical report – Pontoon excavator

Josef Möbius Bau-Aktiengesellschaft

“I would highly recommend talking to CJC®! Especially if you are experiencing any oil condition problems, this system works.”

To the practical report – tug boat

Technical Supervisor, Dublin Port Company

„Only by installing the CJC® Hydraulic Filters can the requirements for the ME hydraulic system be met.“

To the practical report – Container ship

Technical inspector, Hapag-Lloyd AG

“The CJC® Hydraulic Filter fulfills what it promises. I would recommend it without hesitation for cleaning a system contaminated with water and particles.“

Download Practice Report – Trawler

Chief engineer, Vinnslustöðin Vestmannaeyjum, B/V Jón Vidalin

“In my experience with these systems, I can recommend them without hesitation. “

Download Practice Report – Trawler

Chief engineer, Fiskafurðir, F/V Viking

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