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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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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: 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.