
Insights
Your knowledge hub on cylinder lubrication
Get a deeper understanding of cylinder lubrication and read the latest updates
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SERVICE LETTER: Succeed with SIP
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SERVICE LETTER: HJ X-Tronic software
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SERVICE LETTER: Changing to HJ Non-return valves
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SERVICE INFORMATION: Lacquering
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EEXI challenges cylinder condition
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NEWS: HJL joins G&O Maritime Group
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Greater flexibility in cylinder lubrication
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NEWS: Successful business 2020
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SERVICE LETTER: Recovery of marine pc showing a blue screen
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SERVICE LETTER: Feed rate adjustment after installing HJ SIP valves
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SERVICE LETTER: E-mailing files til HJL
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SERVICE LETTER: Feed rate adjustment after installing HJ Non-Return valves
Featured client case studies

CLIENT CASE STUDY: AET
Reducing feed rate by 32%
The marine vessel Eagle Varna was experiencing a high feed rate of the cylinder lube oil. Hans Jensen installed HJ SIP valves on MAN Alpha, which resulted in a significant reduction in cylinder lube oil consumption.
Engine: 7S80MC-C

CLIENT CASE STUDY: HAFNIA
Tripling liner life time
Hafnia, a member of BW Group, upgraded the engine’s cylinder lubrication system onboard their Medium Range Product Tanker, BW Egret, in January 2020. Liners previously had a wear rate that exceeded the maximum allowable limit.
Engine: 6S50ME-B

CLIENT CASE STUDY: COSTAMARE INC.
Face-off between HJL and standard lubrication system
A joint test with MAN Diesel & Turbo (MDT) and Hans Jensen Lubricators determined the effectiveness of HJ Lubtronic SIP over standard lubrication on a new, super-long stroke, electronically controlled engine which was prone to high rates of cylinder wear, cold corrosion and high feed rate.
Engine: 9S90ME-C
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Did you know
We work with leading universities pushing lubrication technology forward
Latest articles
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EEXI challenges cylinder condition
There is a clear connection between low load operations and an increased risk of deteriorated cylinder condition. Our engineers see a hidden risk inside the engine.
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Greater flexibility in cylinder lubrication
The shipping industry’s ambitions for reducing CO2 emission are likely to follow several technological pathways, so a more flexible and modular lubrication system is now available, says Dr Rathesan Ravendran.
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Latest service letters
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SERVICE LETTER: Succeed with SIP
The purpose of this Service Letter is to guide the user in optimizing the cylinder oil feed rate, so the full saving potential and better cylinder condition made possible by the Hans Jensen’s Swirl Injection Principle (HJ SIP) valves
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SERVICE LETTER: HJ X-Tronic software
The main purpose of this update is to improve the support of your Hans Jensen lubrication system by introducing a log and to boost the user experience using graphs. Additionally, we have added flexible scheduling of the ACS feature and renewed passwords for improved login security.
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SERVICE LETTER: Changing to HJ Non-return valves
This Service Letter describes the benefits of the HJ non-return injection valves compared to standard non-return injection valve. With HJ non-return injection valves optimum design and quality is ensured.