LINER WEAR MEASUREMENT
LDM WORKING STATIONS
With WSR’s LDM working stations in Singapore and China and serving the Mediterranean through our Station in Cyprus, we are able to offer our customers, during even a short port stay, an accurate measuring of engine cylinder liner wear and conditions assessment.
The LDM is an innovative tool for safe, fast and accurate measuring of cylinder liner wear and clover-leafing.
By using the LDM it is possible to avoid unplanned off-hire and reduce overhauling costs through continual monitoring of the cylinder condition. Furthermore, pre-inspection of the cylinder condition before a piston overhaul will minimize downtime and cost.
Today’s method of using a micrometer to determine liner wear will usually take a 3-man team and one long working day to measure 2 cylinders.
it will take one man 3 hours to measure 2 cylinders.
With the LDM it is possible to get an overview of several liners condition during even a short port stay, as no engine disassembly is necessary.
the results are clearly presented and 360° contour plots and trend plots
can easily be prepared and shared. The results can be used as a stand-alone measurement in connection with troubleshooting, before dry-docking or as a measurement in a series to monitor the liner wear trend.
Further key features include:
- Approved as checked baggage according to IATA 2015 regulations
- Long-lasting battery user time: Approximately 13 hours of continuous usage without recharging
The LDM was developed and tested in close cooperation with end users as well as marine workshops, engine builders, engine designers and significant importance was the cooperation with market leading low-speed engine designer MAN Diesel & Turbo.
SUITABLE FOR ALL 2-STROKE ENGINES
The LDM is suitable for all 2-stroke engines with 500-980mm bore, and offers fast and precise in-situ measurement of cylinder liner wear and shape with no need to remove cylinder cover or dismantle critical engine parts.
Would you like to know what you will receive with an LDM report?
Click bellow to find out more.
LDM EXAMPLES OF USE
1. EARLY DETECTION OF ABNORMAL CYLINDER WEAR & VERIFICATION OF COUNTER-MEASURES
Abnormal cylinder wear can be caused by a variety of factors, such as:
- New engine type
- New lube oil type or feed rate
- New bunker supplier (e.g. new route)
- New route (humidity, temperature and load change)
- Cat fines
2. VERIFY CYLINDER WEAR BEFORE DRY-DOCKING
It is normal practise to measure cylinder liners prior to dry docking to find out if the cylinder need to be reconditioned (honed) or replaced during the docking. The diagram on the right, indicates that all six cylinder were first measured manually with micrometer on six different occasions. During such measurements, the cylinder cover must be taken off and the procedure takes about one day per cylinder for a three-man team. With the LDM, the same six cylinders could be measured on one working day and by one operator. The results were very similar.
3. DETECT ABNORMAL CYLINDER DEFORMATION AND WEAR BEFORE IT LEADS TO FAILURE
Clover shape and ovality can have different root causes, including cold corrosion and thermal deformation as a result from uneven cylinder temperatures. The LDM allows you to take corrective action before the cylinder condition becomes critical, thereby saving costs and disturbance generated by emergency repair. Corrective actions often include adaptation of the cylinder cost strategy or cylinder lubrication strategy.
Contact the LDM Team