CJC™ Fine Filter Technology
Offline Oil Maintenance Systems
Synonym for Oil Maintenance
One Principle - Many Applications
Presses
Due to their high acquisition costs, presses require a particularly long life time. This also applies to
the hydraulic components. In order to reach high productivity and to avoid repair and maintenance
downtime due to contaminated pressure and lubrication fluids, fine filtration is essential.
CJC™ Fine Filter systems are offline oil filtration systems which ensure preventative maintenance
due to the constant high level of oil cleanliness.
Casting machines
Valve failures, extensive wear and cavitation of pumps – these are main problems hydraulic systems
in casting machines are faced with. In this industrial sector the machines often operate around the
clock and the contamination in the used HFC-fluids or mineral oils is also constant. Any downtime
involves high costs. CJC™ Fine Filter systems keep contamination of fluids at a non-critical level.
Machine tools
Hydraulic oil, bearing oil, lubrication oil and gear oils, cutting oil or cooling lubricants - the operating
fluids in machine tools are exposed to a continuous particle and / or water ingress. With CJC ™ Fine
Filter systems permanent high oil cleanliness can be achieved in these fluids and a clean cooling
lubricant contributes to a high surface quality. Longer oil life time already results in significant savings.
Additionally, repair and maintenance costs are decreased tremendously.
Test benches
Especially for the conditions on test benches, particularly with open coverage, filtration with
CJC™ Fine Filter systems is essential. In order to achieve the required cleanliness class in the flushing
oil, the amount of contamination entering through the test pieces must be reliably removed. The
excellent dirt holding capacity of the CJC™ Fine Filter systems ensures highest oil cleanliness and
smooth test cycles, even at high loads.
Hydraulic oil
2
Motor oil
Insulating oil
Cutting oil
Lubrication oil
Diesel / Fuel
Turbine oil
Drawing oil
Gear oil
Cooling lubricant
Tap changer oil
Honing oil
Lapping oil
Rolling oil
One Principle - Many Applications
Metal forming
Oil systems of machines e. g. for rolling, forging, drawing and bending of metal are exposed to an
extremely high level of contamination. Nozzles and valves are often blocked by a mixture of particles
and resins. Water entering the oil exacerbates these problems. CJC™ Fine Filter systems, remove
these contaminants and keep the oil permanently clean. Thereby, the oil life time is prolonged and
downtimes of the machine are drastically reduced.
Compressors
Depending on the field of application of the compressors, different types of contamination occur in
the lubrication oil. Condensate is generated, mostly during the compression process, and can get
into the oil circuit and lead to corrosion and cavitation. Due to high process temperatures, ingress of
particles and oil degradation products are a common problem in this application field.
CJC™ Fine Filter systems remove all three types of contaminants, and thereby extend the lifetime of
the compressor oil.
Examples for further applications (We gladly send you detailed information)
Power plants
Steam-, Gas-, Hydro turbines, Control fluids,
Feeding pumps, Cooling blower etc.
Combined heat and power unit
(Bio-)Gas- and Diesel engines, Gas turbines
Quarries and mining
Crushers, Mills, Conveyor belts, Drilling-rigs,
Mobile hydraulics, Storage tanks etc.
Mobile Hydraulic
Excavators, Cranes, Van Carriers, (Un)Loaders,
Forklifts, Road Building Machines etc.
Wind power
Gear boxes, Pitch hydraulics, Main bearings
Pulp & Paper
Paper machines, Calenders, Refiners, Block
band saws, Saw mills etc.
Cement works
Crushers, Mixer, Mills, Rotary kilns
Thermal oil systems
Quench works
Quench baths, Annealing ovens, Wash
water (reconditioning of skimmed oil)
Transformers & Tap changers
Injection moulding machines
Refrigerator oil
Petroleum
Thermal oil
Phosphate ester (HFD)
Quenching oil
Rapeseed oil
Compressor oil
Palm oil
Drilling oil
Water glycol (HFC)
Brake fluids
Silicone oil
3
Causes of Contaminants
Particles
How do particles enter the oil?
Particle contamination of the oil can only be reduced, not avoided. The contaminants
enter the system from the environment (e. g. through venting, oil refilling or repairs), but
they are also generated inside the system (abrasion). Every particle in the system can
generate more contamination (sand blasting effect).
Water
Grooving through abrasion
(Bearing ring)
How does water enter the oil?
It is very difficult to avoid water contamination of the oil. Humid air enters the system via
air vents and is absorbed by the oil. Varying temperatures enhance this process. Cooling
water leakages and similar water ingress are also common sources of oil contamination.
Varnish
Corrosion
(Shaft)
How do oil degradation products get into the oil?
Products resulting from oil degradation occur in both lubricating oil systems and hydraulic oil systems. This is mainly influenced by oxidation (oxygen), hydrolysis (water) and
thermal decay at high temperatures. In most cases, all of these three factors combined
are at play. The resinlike degradation products are deposited on metal surfaces of the
system and form a sticky layer to which particles adhere.
Acids
Varnish
(Steering gear)
How does the acid content increase in the oil?
Acids are generated in different ways in the oil: by combustion products, blow-by-gases
and sulphur in motor oils, by oil ageing (oxygen, thermal load) in hydraulic and lubrication
oils, or by water ingress in esters. Acids in oil facilitate the formation of corrosion (rust)
and accelerate the oil ageing / oxidation process (oil degradation products, consumption
of additives). In addition, the oil viscosity dramatically increases to such an extent that it
can result in loss of lubricity.
Corrosion
(Roller bearing)
Oil maintenance is a requirement
Up to 80 % of all machinery repair and maintenance costs are the result of contaminated system fluids. This is
substantiated by several independent analyses at hydraulic and lubrication systems. It is not only the reduced,
specific properties of the oils that cause these, preventable, costs. The main cause is wear induced by contamination
through solid particles, water and varnish. These contaminants can be removed reliably and permanently only with
continuous offline fine filtration.
Abrasion
4
Water in Oil
Corrosion
Varnish
Consequences of Contaminants
The most common types of wear
Particles
Erosion
Small particles in a high velocity oil flow come in
contact with metal surfaces and edges, breaking off
more particles (sand blasting effect).
Abrasion
Hard particles jammed between moving parts destroy
the surfaces (abrasive wear).
Water
Cavitation
Water droplets in the oil evaporate under high pressure, implode and rip particles off the metal surfaces.
Corrosion
Water or chemical contaminants in the oil cause rust
or chemical reactions, which deteriorate the
component surfaces.
Varnish
Oil degradation
High temperatures, oxidation and hydrolysis cause
the oil to degrade. The resinlike residues of this
degradation process are deposited on metal surfaces.
Acids
Acids
Because of the intensified formation of rust due to
acid compounds in the oil the amount of
contaminants simultaneously increase. When
particles (erosion, abrasion) come into contact with
these corroded surfaces, more particles break off.
Wear
Corrosion
Varnish
5
Cellulose - The Ideal Filter Material
Simultaneous Removal of Particles, Water and Varnish
Particles
Depth filter inserts - plenty of space for contamination
75 % of the insert volume forms a structure of cavities. Even the smallest
particles are retained from the oil in this maze-like, small-pored meshed filter
material. Each insert has a filtration degree of 3 µm absolute (1 µm nominal). This
achieves highest oil cleanliness levels, with a dirt holding capacity of at least
2 kilogramme per insert.
Water
Learning from the nature - each fibre absorbs water
The natural cellulose fibres of the CJC™ Fine Filter insert absorb water and
retain it permanently. Even if only a few ppm of water are in the oil, the fibres
dry the oil, provided the flow of the fluid through the filter material is
sufficiently slow. The water absorption capacity of each insert amounts to
approx. 1.2 litres.
Varnish
60 soccer fields - a lot of space for docking
Oil degradation products are polar - therefore, they can be removed by
cellulose. Due to their molecular structure, cellulose fibres have countless
polar sites. With a combination of adsorption and absorption, the oil
degradation products are drawn from the oil and held back permanently.
Cellulose fibres have an inner surface of 150 m² per 1 gram; with a weight of
3 kg, each filter insert offers a surface that equals more than 60 soccer fields.
Cellulose fibre composite
(CJC™ Fine Filter insert)
Clean the oil system with clean oil
As soon as the oil degradation products circulating in the oil are removed, the
clean oil loosens the deposited oil degradation products and holds them in
suspension until these are filtered out.
Cellulose single fibres
(CJC™ Fine Filter insert)
Only one material - easy disposal
Used CJC™ Fine Filter inserts can be disposed of according to the (German) Waste Product Key 150202. Because the
filter inserts consist only of organic materials, no raw material based separation is required. Thus, they also comply
with the requirements of DIN EN ISO 14001:2005 “Environmental Management Systems”.
CJC™ Fine Filter inserts offer space for:
Particles
6
between the fibres
Water
in the fibres
Oil Degradation
Products
at the fibres
CJC™ Fine Filter Inserts
Depth Filter Insert - High Dirt Holding Capacity for High Oil Cleanliness
Principle
Cross-section of a filter insert
Flow direction
Clean oil
The oil flows through the CJC™ Fine Filter insert radially from the outside to the inside.
The micro-fine dirt particles are retained in the depth of the filter material. Water
is absorbed by the cellulose fibres, oil degradation products deposit on the polar
surfaces of the cellulose meshing.
Long filter paths - efficient filtration
The longer the fluid has contact with the filter material, the more effective is the fine filtration. For that
reason, the depth filter inserts of the CJC™ Fine Filter systems have particularly long filter paths.
CJC™ Fine Filter inserts - for each application a proper solution
CJC™ Fine Filter insert J
Mineral oils and synthetic
pressure fluids and lubricants
up to ISO VG 68 / 40 °C
CJC™ Fine Filter insert D
For special fluid applications we gladly advise you!
CJC™ Fine Filter insert B
Mineral oils and synthetic
pressure fluids and lubricants
up to ISO VG 460 / 40 °C
CJC™ Fine Filter insert BLA
Aqueous mineral oils, synthetic
fluids up to ISO VG 460 / 40 °C,
HFC fluids
CJC™ Filter insert CHEM
HFD fluids, insulating oils, gas engine oils
Neutralization of acids:
aluminum oxide, Fuller‘s Earth or Amberlyst
Drying of oils:
moleculare sieve
CJC™ Fine Filter insert JH
Quenching oils, fluids with an
extremely high dirt ingress
up to ISO VG 68 / 40 °C
CJC™ Filter insert CHEMZ
HFD fluids, insulating oils, gas engine oils
2step filtration:
CJC™ Filter insert CHEM in combination
with a CJC™ Fine Filter insert.
„Filter efficiency is basically a function of
the fluid‘s time of contact with the filter
material. “
7
Offline Oil Maintenance
Limitations of inline filtration
Inline filters (suction, pressure, return filter) have a very compact design and must still cope with high flow rates and highly fluctuating
pressure surges. This constant load results in material fatigue and destroys the pore structure. This may in turn allow larger particles to
pass the filter, or to be crushed into smaller particles when hitting the filter element. Therefore, the optimum oil cleanliness can only
rarely be achieved with inline filters.
Offline fine filtration
Continuous high oil cleanliness can only be ensured by continuous
offline fine filtration - in conjunction with the inline filter. Only the
offline principle allows a perfect fluid flow rate / filter size relation.
The oil flows through the filter body at an extremely slow pace so that
even micro-fine particles settle down deep within the filter insert.
Oil system
Inline filter
Inline filter
Tank
Automatic bleeding and venting valve
Offline filter
Manometer
CJC™ Fine Filter insert
The gear pump of the CJC™ Fine Filter system draws contaminated oil from
the fluid system tank of the machine and passes it slowly and at a constant
flow rate through the depth filter insert.
The oil flows radially from the outside to the inside through the CJC™ Fine
Filter insert and returns, cleaned and dried, to the system. The manometer
on the filter housing indicates the necessary filter insert change. During insert
replacement the CJC™ Fine Filter system is briefly stopped, but the main fluid
system remains in operation.
Pump with motor
Base plate
8
Easy installation:
The oil is drawn and returned at the
system tank.
Advantages
Prolong machine running time, increase productivity
The predominant causes for machine breakdowns and standstill periods are contaminated system fluids. Continuous fine filtration
reduces the number of unplanned standstills. Maintenance and repair costs are reduced and the productive / efficient load of the
machine increases.
Reduce purchase and waste disposal costs
Fine filtration prolongs the service life of the system fluid considerably. The positive effects of this are reduced purchase costs for new
fluids and minimized disposal costs for used fluids.
Protect hydraulic components from corrosion
In many hydraulic systems the ingress of condensate water is unavoidable. CJC™ Fine Filter inserts remove this water, preventing
corrosion of the hydraulic components.
Prolong inline filter‘s service life
Fine filtration reduces the strain on the expensive inline filter, and therefore it needs to be exchanged less frequently.
Preserve environment and ressources, reduce CO2-emission
The consumption of one litre of waste oil causes 2.6 kg of CO2-emission. Consequently, each litre of oil that is used for a longer period
of time preserves the environment and reduces CO2-emission. Furthermore, the limited oil resources are also preserved.
Large amount of water in oil - CJC™ Filter Separators
For large amounts of water in the oil or continuous water ingress in the oil system, CJC™ Filter Separators are an appropriate solution
for drying and filtering the oil. The specially treated CJC™ Fine Filter insert type BLAT, retains solid particles as well as oil degradation
products without absorbing water. The water is separated in a subsequent process in the coalescing element.
The coalescing process starts in the CJC™ Fine Filter insert. During the
passage through the mesh of cellulose and cotton linters microscopic
water parts combine to droplets.
The water droplets are carried with the laminar oil flow through the
coalescing element and attach to the stainless steel mesh because
of the larger adhesion forces. The flow pushes them along the metal
fibres, lets them combine with other droplets at the intersections and,
due to the higher density, fall into the filter base as larger droplets.
Flow switch and solenoid valve regulate the periodical discharge of the
accumulated water.
9
CJC™ Fine Filter Units
For large amounts of dirt
The following drawing shows the various sizes and their modular design. All CJC™ Fine Filter systems are equipped as standard with
sampling point, automatic bleeding and venting valve and pressure switch. We will gladly inform you about further optional accessories.
[All dimensions in mm]
Modular build-up
[All dimensions in mm]
CJC™ Fine Filter inserts have a modular build-up.
Optional accessories:
10
Motor protection switch
Prefilter
Vacuum switch
Leakage sensor
Preheater
Flow sensor
Control box
Magnetic and sieve filter
Base plate / Mobile cart
The Correct Dimensioning
The basis for the correct dimensioning ...
... of filters is the total fluid volume in the system. For the two most common insert types, the subsequent tables indicate standard
module sizes for mineral oil based fluids and synthetic pressure and lubrication fluids. Variations in e. g. viscosity, operating temperature
and type and amount of dirt ingress may influence the dimensioning.
CJC™ Fine Filter insert J
up to ISO VG 68 / 40° C
Oil volume
max.
[l]
CJC™ Fine Filter
type
CJC™ Fine Filter insert
Holding capacity*)
Volume
[l]
Surface
[ m² ]
Dirt
[ kg ]
Water
[l]
Contents
[l]
Pump flow
[ l/min ]
Power
consumption
[ kW ]
300
15/25
4
0.38
1.1
0.5
6
0.35 -
0.7
0.12
700
27/27
12
1.13
2.0
1.2
18
0.7 -
1.5
0.12
1,500
27/54
24
2.26
4.0
2.4
35
0.7 -
3.0
0.12 - 0.18
2,200
27/81
36
3.39
6.0
3.6
60
1.5 -
4.5
0.12 - 0.18
3,000
27/108
48
4.52
8.0
4.8
80
1.5 -
6.0
0.12 - 0.18
4,500
38/80
68
6.40
12.0
6.8
103
1.5 -
9.0
0.12 - 0.25
5,500
38/100
85
8.00
15.0
8.5
125
1.5 - 13.0
0.12 - 0.37
10,000
427/108
192
18.08
32.0
19.2
350
6.0 - 24.0
0.18 - 0.55
22,000
727/108
336
31.64
56.0
33.6
621
24.0 - 45.0
0.55 - 0.75
CJC™ Fine Filter insert B
up to ISO VG 460 / 40° C
Oil volume
max.
[l]
CJC™ Fine Filter
type
CJC™ Fine Filter insert
Holding capacity*)
Volume
[l]
Dirt
[ kg ]
Water
[l]
Surface
[ m² ]
Contents
[l]
Pump flow
[ l/min ]
Power
consumption
[ kW ]
1,500
15/25
3
0.5
1.1
0.4
6
0.35 -
4.5
0.12 - 0.18
3,000
27/27
9.6
2.05
2.0
0.9
18
0.7 -
6.0
0.12 - 0.18
5,000
27/54
19.2
4.10
4.0
1.8
35
3.0 -
13.0
0.18 - 0.37
7,000
27/81
28.8
6.15
6.0
2.7
60
4.5 -
24.0
0.18 - 0.55
10,000
27/108
38.4
8.20
8.0
3.6
80
6.0 -
36.0
0.18 - 0.75
35,000
427/108
153.6
32.80
32.0
14.4
350
30.0 - 100.0
0.75 - 2.20
70,000
727/108
268.8
57.40
56.0
25.2
621
45.0 - 200.0
0.75 - 5.00
Subject to technical changes.
*) Test dirt: spherical ferrous oxide with prevailing size of 0.5 µm.
For optimal dimensioning customised for your fluid system, please,
contact us!
In cooperation with you we will gladly find the right method for
maintaining your oil.
11
Oil Cleanliness Classes
Various analysis methods are used for the determination of oil cleanliness, of which the most important are...
Classification according to ISO 4406 (International Organization for Standardization)
1st Method: Automatic particle count
From a 100 ml sample of the fluid to be examined, the quantity of particles > 4 μm, > 6 μm
and > 14 μm is determined. The determined quantities of particles are then categorised in
class codes, indicating the oil cleanliness level.
Amount of particles > specified size
more than
up to
ISO Code
8,000,000
16,000,000
24
4,000,000
8,000,000
23
2,000,000
4,000,000
22
1,000,000
2,000,000
21
500,000
1,000,000
20
250,000
500,000
19
130,000
250,000
18
64,000
130,000
17
32,000
64,000
16
16,000
32,000
15
8,000
16,000
14
4,000
8,000
13
2,000
4,000
12
1,000
2,000
11
500
1,000
10
250
500
9
130
250
8
64
130
7
Example - Oil cleanliness level 19/17/14 (typical for new oil):
250,000 up to 500,000 particles ≥ 4 μm,
64,000 up to 130,000 particles ≥ 6 μm and
8,000 up to 16,000 particles ≥ 14 μm are contained in 100 ml of the tested oil.
2nd Method: Microscopic analysis
Only the quantity of particles ≥ 5 μm and ≥ 15 μm is determined.
Example - Oil cleanliness level 17/14 (typical for new oil):
64,000 up to 130,000 particles ≥ 5 μm,
8,000 up to 16,000 particles ≥ 15 μm are contained in 100 ml of the tested oil.
(Extract from the currently valid ISO 4406 standard.)
Classification according to SAE AS 4059 (Society of Automotive Engineers, Aerospace Stand.)
Maximum number of particles per size in 100 ml
Size range
Size code
0
> 4 µm
A
780
1
2
3
4
5
6
7
8
9
10
1,560 3,120 6,520 12,500 25,000 50,000 100,000 200,000 400,000 800,000
609 1,220 2,430
4,860
9,730 19,500
38,900
11
12
1,600,000
3,200,000
> 6 µm
B
304
77,900 156,000 311,000
623,000
1,250,000
> 14 µm
C
54
109
217
432
864
1,730
3,460
6,920
13,900
27,700
55,400
111,000
222,000
> 21 µm
D
10
20
39
76
152
306
612
1,120
2,450
4,900
9,800
19,600
39,200
> 38 µm
E
2
4
7
13
26
53
106
212
424
848
1,700
3,390
6,780
> 70 µm
F
0
1
1
2
4
8
16
32
64
128
256
512
1,024
(Extract from the currently valid SAE AS 4059 standard.)
With this measurement method (successor of NAS 1638) particles are classified in 6 size ranges and 6 size grades. The number of particles
(in 100 ml) per size range is counted. The detected measured values of each size range are defined according to the oil cleanliness classes.
Example - Oil cleanliness class 9A/8B/7C/6D/ 6E/7F (typical for new oil):
In 100 ml of the tested oil are 200,000 up to 400,000 particles > 4 µm = Oil cleanliness class 9A
38,900 up to 77,900 particles > 6 µm = Oil cleanliness class 8B
3,460 up to 6,920 particles >14 µm = Oil cleanliness class 7C
306 up to 612 particles > 21 µm = Oil cleanliness class 6D
53 up to 106 particles > 38 µm= Oil cleanliness class 6E
and 16 up to 32 particles > 70 µm = Oil cleanliness class 7F
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Before filtration
AFTER filtration
Analysing and Evaluating Oil
Categorizing of cleanliness levels
Depending on the application, specified oil
cleanliness levels for oil systems (ISO 4406) are
recommended. The adjacent table shows these
minimum requirements in an overview.
22 / 20 / 17
19 / 17 / 14
17 / 15 / 12
16 / 14 / 11
14 / 12 / 10
heavily
contaminated
medium
contaminated
e. g. new oil *)
lightly
contaminated
clean
very clean
not useable
in oil systems
low and medium
pressure systems
hydraulic and
lubrication systems
servo and high
pressure systems
all oil systems
(Source: Noria Corporation)
*) Up to 0.05 % of insolubles are permissible in new oil. (DIN 51 524, Part 2)
Prolonging the service life of system components
The service life of hydraulic and lubrication
system components varies distinctly according
to the cleanliness level (ISO 4406).
22 / 20 / 17
19 / 17 / 14
17 / 15 / 12
16 / 14 / 11
14 / 12 / 10
50 % of nominal
service life
75 % of nominal
service life
100 % of nominal
service life
150 % of nominal
service life
200 % of nominal
service life
Correct oil sampling
The classification of an oil cleanliness grade is usually done by means of an automatic particle counter. The relevant procedure is
described in DIN ISO 5884.
To achieve a reliable analysis result, it is very important that the oil sampling is done correctly. Sampling at the wrong place and with
inadequate or dirty equipment will corrupt the analysis result. During sampling, for example, 80 µm large dust particles from the
environment can be drawn into the sample, affecting the analysis dramatically. Sampling bottles should only be opened very briefly
before and after sampling. Bottles should be made of glass and pre-cleaned according to DIN ISO 5884.
On request, we can supply a sampling information sheet as well as clean sampling bottles.
Analysing oil samples
Important additional analysis:
In-house analysis and test facilities enable fast and precise
analyses of oil samples and support the development. Laser
particle counters are used for precise analyses of oil samples
and classification according to ISO 4406 or SAE AS4059.
• Water content analysis according to DIN 51 777 (Karl Fischer method)
• Viscosity analysis according to DIN 51 366
• Solid contaminants analysis according to DIN 51 592 und ISO 4405
• Microscopic analysis / photographic illustration of contaminants
• Spectroscopic analysis to determine origin of contaminants
• Acid content: Determination of the acid value (acid number)
Required amount of potassium hydroxide (KOH) in mg required for
binding the free acids contained in 1 g of the fluid.
140 kg of dirt is pumped annually through the system,
even when typical new oil is used!
Calculation:
At a pump flow of 200 l/min and an operating time of 8 hours/day, 230 days/year:
approx. 0.64 mg dirt in 100 ml oil  approx. 6.4 mg in 1 l oil  pump load with approx. 1,280 mg/min 
(Source: Noria Corporation)
approx. 76.8 g/hour  approx. 614 g/day  approx. 140 kg/year.
13
Applications
Forging hammer - Hydraulic oil
Application Study:
The oil life time is reduced due to wear, dust from the environment and the strong strain on the oil. Each unplanned breakdown results
in high costs, especially at high cycle times and three-shift operation.
Drop forging hammer, automotive-supplier, Germany
1,000 litres hydraulic oil
Problem: Heavy contamination with metal particles and
varnish, oil life time limited to 2 years
Solution: CJC™ Fine Filter unit 27/27, filter insert type B
Result: ISO Code 18/16/13, visibly less varnish
Chamber filter press - Hydraulic oil
Application Study:
The hydraulic of a chamber filter press is constantly exposed to a high level of water ingress. Additionally, the filter cake falling from the
press leads to a high dust load. This heavy contamination results in blocked valves and pump wear.
Chamber filter press, disposal plant, Germany
70 litres hydraulic oil
Problem: High water ingress,
high dirt load from the environment
Solution: CJC™ Fine Filter unit 15/25, filter insert type BG
Result: ISO Code 14/12/10, water content: 100 ppm
09.01.09
23.02.09
Particles > 2 µm
334,776
11,063
Particles > 5 µm
90,072
3,848
Particles > 15 µm
3,051
799
19/17/12
14/12/10
123
109
After 4 days
of filtration
ISO Code 4406
Water content, ppm
Lapping oil
Application Study:
Lapping-powder is added to the oil during the lapping process to achieve an extremely high surface quality. For reconditioning of the
oil, the abrasive particles as well as the generated oil degradation products have to be removed completely.
14
Manufacturer of sealing rings, Italy
300 litres lapping oil per day
Problem: Solid particles do not settle,
oil cannot be re-used
Solution: CJC™ Fine Filter unit 27/54, filter insert type B
Result: ISO Code 14/13/10, water content: 80 ppm
CJC™ Fine Filter unit 27/27
Removal of particles and
oil degradation products,
absorption of water
CJC™ Filter Separator 27/54
Separation of water by coalescing,
removal of particles and oil
degradation products
ISO Code 4406
Water, ppm
CJC™ Filter Separator 27/27
with preheater, specially
developed for the use in
thrusters
Your customized solution is our standard.
BEFORE
filtration
AFTER
filtration
17/15/12
14/13/10
460
80
CJC™ Fluid Treatment unit 15/25-15/25
Neutralization of acids, removal of
particles, water and oil degradation
products
Applications
Test bench - Flushing oil
Application Study:
Before gear boxes, cylinders etc. are delivered to the customer they are flushed with oil to remove residues which are generated during
the production process. Only when this flushing oil has the required cleanliness the component can be delivered. Consistently clean oil
is essential.
Test bench, Denmark
Flushing oil, Manufacturing of hydraulic cylinders
Problem: Large amount of particles in the flushing oil,
required cleanliness is not achievable
Solution: CJC™ Fine Filter unit 27/54, filter insert type B
Result: ISO Code from 19/17/15 to 14/12/10
ISO Code 4406
required oil cleanliness
15/13/11
WITHOUT filtration
19/17/15
WITH filtration
14/12/10
Ceramic press - Hydraulic oil
Application Study:
The environmental air of ceramic presses is heavily loaded with particles. These contaminants result in breakdowns and reduce the life
time of both components and oil.
Ceramic press, Italy
1,200 litres hydraulic oil
Problem: Extreme high dirt ingress in the oil
Solution: CJC™ Fine Filter unit 15/25, filter insert type J
Result: ISO Code from 23/21/19 to 16/15/12
BEFORE filtration
ISO 23/21/19
AFTER filtration
ISO 16/15/12
Rolling mill - Hydraulic oil
Application Study:
Pump breakdowns, blocked valves, pressure surges and problems with the cooler – contaminants can be the cause for all these
deficiencies.
Rolling mill / steel works, Great Britain
4,500 litres hydraulic oil ISO VG 32
Problem: Water and dirt in the hydraulic oil,
result: often breakdowns of components
Solution: CJC™ Filter Separator 27/108, filter insert type BLAT
Result: ISO Code from 22/19/14 to 16/14/11,
Water from 780 to 50 ppm
CJC™ Transformer Oil unit 3R27/108
Drying of transformer insulation,
insulation is dried indirectly via the
insulating oil
CJC™ Desorber D40
Removal of large
amounts of water from
emulsified oils
CJC™ Fine Filter Unit
for residual dirt analysis
Your customized solution is our standard.
BEFORE filtration
ISO 22/19/14
AFTER filtration
ISO 16/14/11
Water content 50 ppm
after 136 days
CJC™ Gear Flushing Unit
Gear flushing and oil filtration,
specially developed for wind turbine
gears
15
- worldwide
Karberg & Hennemann GmbH & Co. KG
Marlowring 5 | D - 22525 Hamburg | Germany
Phone: +49 (0)40 855 04 79 - 0 | Fax: +49 (0)40 855 04 79 - 20
[email protected] | www.cjc.de
Founded in 1928 and located in Hamburg, we develop and
manufacture CJC™ Fine Filter technology since 1951. With
substantiated know-how and in-house analysis and test
facilities we are experts when it comes to the maintenance of
oils and fuels.
Quality
Competent advice and individual solutions, even for the most difficult filtration problems
of our customers - that is our daily claim. The certification of our company according to
DIN EN ISO 9001:2008 provides us with assurance and motivation.
CJC™ worldwide
CJC™ Fine Filter systems
are available worldwide
through subsidiaries and
distributors.
Find your nearest
distributor on our website
www.cjc.de.
MPIe | 03.15
- Or give us a call!
Karberg & Hennemann GmbH & Co. KG
www.cjc.de