Avoid oil changes, repair costs and “off-hire” times
Thruster filters from CJC®: Your solution for consistently dry and clean oil


Thruster Filters
Thruster Filters from CJC® dry, clean and maintain your gear oil quickly and cost-effectively. Whether fixed propeller or azimuth thruster, whether fishing boat or container ship, whether mineral oil or biodegradable lubricant, CJC® Thruster Filters are precisely configurable for your ship. Installed in the offline or lube oil circuit, they continuously ensure maximum oil cleanliness. They remove water, wear particles, oil degradation products and acids — even microbial infestation — efficiently and reliably.
How you benefit from installing a CJC® Thruster Filter
You save the gear oil – even if it contains a lot of water – and you achieve a longer service life for the oil filling.
You ensure maximum wear protection and save time and money during maintenance and repair.
You minimize unplanned downtimes and off-hire times for more reliability and availability of your vessel.
You ensure the highest possible oil cleanliness and thus provide manoeuvrability at all times.
Product Advantages — CJC® Thruster Filters
Customized solutions
Perfectly adaptable to any thruster and gear oil. The CJC® Thruster Filter is individually and optimally configurable, thanks to its modular design. Optionally with oil sensors for integration into your condition monitoring system.
Maximum oil cleanliness
Clean and dry gear oil within a very short time. The CJC® Thruster Filter removes all contaminants – independently, continuously and highly efficiently. For maximum service life of oil filling and thruster components.
Economical & ecological
Depth filter made of 100% natural fibres – 0% plastic and 0% metals. High recording capacities and thus long filter life ensure excellent price-filter performance of the CJC® Thruster Filters.
Easy installation & maintenance
Easy to install and flexibly installable in an independent circuit – e.g. as an offline filter. Filter change is possible during thruster operation. Low-maintenance, robust and durable, the CJC® Thruster Filter also convinces.
Details about your products — CJC® Thruster Filter
The various concepts for the dewatering, filtration and care of gear oil, as well as the modular design, make it possible to adapt our thruster filters individually to your stern or bow thruster. They are ideal for counteracting the continuous ingress of water into thrusters and keeping the gear oil consistently dry and clean — free of water, particles and oxidation residues. For decades, we have documented the oil cleanliness achieved on various thruster drives and vessel types. Achieve a longer service life for your thruster drives quickly, efficiently and cost-effectively and avoid unnecessary failures and off-hire times for a more economical operation.
Modular design and individually configurable:
Installation: flexible, e.g. in the offline or lubricating oil system
Design temperature: 80 °C
Viscosity range: ISO VG 46—150
Water content in the oil, max.: 700,000 ppm (70%)
Water separation, max.: 150 ml/hour
Dirt holding capacity: approx. 1.1 kg
Filtration degree: 3 μm absolute, 1 μm retention rate
Supply voltage: 1 x 208 V/60 Hz, 1 x 230 V/50-60 Hz, 3 x 400 V/50-60 Hz
Power consumption: 1.85 kW
Motor voltage: 8.4 A at 208 and 230 V, 3.3 A at 400 V
Pump flow (24/7): 30—36 litres per hour
Design pressure: 7 bar
Equipment:
Standard:
- Pump with motor
- integrated CJC® Depth Filter Insert
- electrical control with integrated interface for collective faults and alarm systems (e.g. pressure and leakage sensor)
- Pressure switch
- Leakage monitoring
- Sampling point
- Automatic water separation
- START/STOP switch – dewatering process
Optional:
- Shock absorber
Installation: flexible, e.g. in the offline or lubricating oil system
Design temperature: 80 °C
Viscosity range: ISO VG 32—150
Water content in the oil, max.: 700,000 ppm (70%)
Water separation, max.: 200 ml/hour
Dirt holding capacity: approx. 2 kg
Filtration degree: 3 μm absolute, 1 μm retention rate
Supply voltage: 1 x 208 V/60 Hz, 1 x 230 V/50-60 Hz, 3 x 440—480 V/50-60 Hz
Power consumption: 2.7 kW at 208, 2.9 kW at 230 V, 3.2 kW at 440—480 V
Current: 15.5 A at 208 V, 12.5 A at 230 V, 5.1 A at 440-480 V
Flow rate, inlet Desorber: 45—55 litres per hour
Flow rate, outlet Desorber: 60—75 litres per hour
Flow rate, inlet filter: 120—145 litres per hour
Flow rate, outlet filter: 120—145 litres per hour
Design pressure: 7 bar
Equipment:
Standard:
- Pump with motor
- integrated CJC® Depth Filter Insert
- electrical control with integrated an alarm system
- Pressure switch
- Leakage sensor
- Sampling point
- Automatic water separation
Installation: flexible, e.g. in the offline or lubricating oil system
Design temperature: 60 °C
Viscosity range: ISO VG 32—150
Water content in the oil, max.: 700,000 ppm (70%)
Water separation, max.: 200 ml/hour
Supply voltage: 1 x 208 V/60Hz, 1 x 230 V/50-60 Hz, 3 x 400/50Hz or 3 x 440—480 V/60 Hz
Power consumption: 2.6 kW at 208 V and 230 V, 3 kW at 400 and 440—480 V
Current: 12.5 A at 208 V, 11.3 A at 230 V, 4.3 kW at 400 V and 3.9 kW at 440-480 V
Flow rate, inlet Desorber: 45—55 litres per hour
System pressure max., inlet: 0.5—3.5 bar
Equipment:
Standard:
- Pump with motor
- Electrical control
- Pressure switch
- Leakage sensor
- Sampling point
- Automatic water separation
Design temperature: 60 °C
Viscosity range: up to ISO VG 220
Water separation: automatic
Dirt holding capacity: approx. 1.1 kg
Filtration degree: 3 μm absolute, 1 μm retention rate
Motor voltage: Direct or alternating current
Power consumption: 0.18 kW
Capacity: 90—300 litres per hour
Pump inlet pressure, max.: 0.5—10 bar
Operating pressure, max.: 2 bar
Design pressure: 7 bar
Equipment:
Standard:
- Pump with motor
- integrated CJC® Depth Filter Insert
- Preheater
- Sampling point
- Automatic water separation
Optional:
- electrical control — independent placement possible for flexible integration into your engine compartment
- Pressure switch
- Leakage sensor
The integrated depth filters for gear oil care
Separation capacity:
- Water – free, emulsified and dissolved
- Wear particles, salt crystals (seawater) and other suspended solids
- Oxidation residues (varnish, sludge)
- Acids
Type of filtration:
- Depth filter with extremely high recording capacity
Inner surface:
- 120—150 m² per gram
- The largest depth filter insert has an internal surface of > 2,066 ha = > 2,894 football fields
- The smallest depth filter insert has an inner surface of > 5 ha = > 7 football fields
Due to the modular design, the number of various depth filter inserts and thus the holding capacity can be adapted to the individual dirt input.
Volume:
- The largest depth filter insert has a volume of > 504 litres
- The smallest depth filter insert has a volume of > 1.5 litres
Filtration degree:
- 3 to < 1 micron (μm)
Filter material:
- 100% natural fibres – meets the requirements of the Circular Economy Act
Best practice examples from the customer’s point of view
Find out in our application studies how operators benefit from the installation of the CJC® thruster filters.
- Gear Oil Maintenance, Mineral Oil, Thruster – Harbour Tug2022-08-05T10:54:33+00:00
- Gear Oil Care, Thruster – Tug2022-08-10T10:49:52+00:00
Contact your maritime technical salesperson now
Let’s talk about your thruster, your gear oil and the specific challenges. We filter every gear oil. It does not matter whether you use mineral oil or biodegradable lubricant. Together with you, we maximize the service life of oil filling and thruster.
Receive a personal consultation and a non-binding offer about a CJC® thruster filter for the efficient care and filtration of gear oil.
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