Insights

Your knowledge hub on cylinder lubrication featuring news, articles, research, service letters and client cases.

  • SERVICE LETTER: HJ Smartlube 4.0 – software update 24.05

    SERVICE LETTER: HJ Smartlube 4.0 – software update 24.05

  • Cylinder wear in two-stroke marine engines

    Cylinder wear in two-stroke marine engines

  • SERVICE LETTER: HJ Smartlube 4.0 – software update

    SERVICE LETTER: HJ Smartlube 4.0 – software update

  • BLOG-POST:5 facts about advanced cylinder lubrication technology

    BLOG-POST:5 facts about advanced cylinder lubrication technology

  • BLOG-POST: Reduce the risk of scuffing in cylinder liners

    BLOG-POST: Reduce the risk of scuffing in cylinder liners

  • BLOG-POST: Keep your two-stroke marine engine running efficiently

    BLOG-POST: Keep your two-stroke marine engine running efficiently

  • BLOG-POST: Improve cylinder condition through effective lubrication

    BLOG-POST: Improve cylinder condition through effective lubrication

  • BLOG-POST: Reduce lube oil consumption and emissions

    BLOG-POST: Reduce lube oil consumption and emissions

  • SERVICE LETTER: Succeed with SIP

    SERVICE LETTER: Succeed with SIP

  • SERVICE LETTER: HJ X-Tronic software

    SERVICE LETTER: HJ X-Tronic software

  • SERVICE LETTER: Changing to HJ Non-return valves

    SERVICE LETTER: Changing to HJ Non-return valves

  • SERVICE INFORMATION: Lacquering

    SERVICE INFORMATION: Lacquering

  • BLOG-POST: Minimizing lubrication feed rate: 3 reasons why less is more

    BLOG-POST: Minimizing lubrication feed rate: 3 reasons why less is more

  • EEXI challenges cylinder condition

    EEXI challenges cylinder condition

  • NEWS: HJL joins G&O Maritime Group

    NEWS: HJL joins G&O Maritime Group

  • Greater flexibility in cylinder lubrication

    Greater flexibility in cylinder lubrication

  • NEWS: Successful business 2020

    NEWS: Successful business 2020

  • SERVICE LETTER: Recovery of marine pc showing a blue screen

    SERVICE LETTER: Recovery of marine pc showing a blue screen

  • SERVICE LETTER: Feed rate adjustment after installing HJ SIP valves

    SERVICE LETTER: Feed rate adjustment after installing HJ SIP valves

  • SERVICE LETTER: E-mailing files til HJL

    SERVICE LETTER: E-mailing files til HJL

  • SERVICE LETTER: Feed rate adjustment after installing HJ Non-Return valves

    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

  • Cylinder wear in two-stroke marine engines

    Efficient cylinder lubrication does not eliminate the wear of liners and piston rings completely. The goal is to control the cylinder wear rate and keep it on a normal level and to prevent other harmful types of wear. Cylinder wear in two-stroke marine engines refers to the gradual deterioration of the inner surface of the…

  • BLOG-POST:5 facts about advanced cylinder lubrication technology

    1. What is the purpose of lubrication technology for marine engines? Lubrication technology for marine vessels involves the use of advanced lubrication systems to reduce friction between cylinder liner and piston rings by forming a thin and even oil film. Furthermore, lubrication prevents wear of liner and piston rings, neutralizes sulphuric acids, keeps the piston,…

  • BLOG-POST: Reduce the risk of scuffing in cylinder liners

    Scuffing in cylinder liners is a serious risk for marine vessels that might lead to costly engine repairs and prolonged downtime. By understanding the causes, you can take preventive measures to reduce the risk of scuffing and ensure optimal engine performance, reliability, and longevity. With the right knowledge and precautions, you can protect your engine…

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Latest service letters

  • SERVICE LETTER: HJ Smartlube 4.0 – software update 24.05

    RELEVANT TO: All users of HJ Smartlube June 2024 Software update 24.05 Update your cylinder lubrication system with the latest software for improved user experience and bug fixes. User experience We have optimized the back end of the system so users get immediate response using the HMI. The feed rate graph on the Home page…

  • SERVICE LETTER: HJ Smartlube 4.0 – software update

    RELEVANT TO: All users of HJ Smartlube lubricators September 2023 Software update 23.07 Update your system with the latest software for improved user experience, better system overview and added log-in security. Improved usability and system overview We have made several improvements to the user interface and features of our most advanced lubrication system, HJ Smartlube…

  • 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

SAVINGS CALCULATOR
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