Company:   PT Tanto Intim Line

Country: Indonesia

Application: Main Engines

Vessel: Container ship

Key Edge: Shell LubeMonitor and Shell Alexia 50

PT Tanto Intim Line (Tanto), a family owned, Indonesia-based cargo-shipping company, operates a fleet of more than 45 container vessels with a total capacity of 26,731 twenty-foot equivalent units. The company was using Shell Alexia 50 as cylinder oil for its fleet’s two-stroke engines but wished to reduce its lubrication costs.

Tanto engaged Shell Marine to investigate reducing its fleet’s lubricant consumption. Consequently, Shell Marine proposed a trial using Shell LubeMonitor, a cylinder condition monitoring programme designed to help customers to optimise their cylinder oil feed rate and thereby reduce overall operating costs.

The shipping company selected the Tanto Jaya for the trial. Shell Marine’s local distributor helped to educate and train the vessel’s crew on sampling procedures, conducting piston crown underside inspections and collecting the required data. Shell Marine then used the Shell LubeMonitor programme, which includes services from a Shell Rapid Lubricants Analysis laboratory, to measure the abrasive iron content in and base number of the oil samples. The data collected and the piston crown underside inspections were used as evidence to persuade Tanto that the cylinder oil feed rate could safely be reduced and thereby cut lubrication costs.

Subsequently, the cylinder oil feed rate for the Tanto Jaya was reduced from 420 to 396 l/d, which is a reduction of 24 l/d or 4,320 l/y for a projected, potential annual saving of about $12,420 for this vessesl.1 These savings may increase, as the programme to optimise cylinder oil feed rate is ongoing. The same solution applied across the rest of the Tanto fleet would increase efficiency and achieve the objective of cutting lubrication costs overall.

Challenge

Indonesian cargo-shipping company Tanto wished to cut lubricant consumption for the two-stroke-engines across its container fleet to reduce its overall operating costs.

Solution

Shell Marine proposed a trial using the Shell LubeMonitor service to collect data from one container ship, the Tanto Jaya, to show that the cylinder oil feed rate could safely be reduced and thereby cut lubrication costs.

Outcome

The data and information collected using Shell LubeMonitor condition monitoring indicated that the feed rate for the Tanto Jaya could safely be reduced from 420 to 396 l/d,

Value

Reducing the cylinder oil feed rate for one vessel in the Tanto fleet potentially saves about $12,420 a year based on a lubricant consumption of 4,320 l/y.1 These savings may increase, as the programme to optimise cylinder oil feed rate is ongoing. Applying the same solution across the Tanto fleet could improve efficiency and help to cut lubrication costs overall.

1The savings indicated are specific to the calculation date and mentioned site. These calculations may vary from site to site and from time to time, depending on, for example, the application, the operating conditions, the current products being used, the condition of the equipment and the maintenance practices.