Lubricants Inventory Control for Marine Port Maintenance

Main Article Content

Siradej Chartniyom
Jaruwan Ngamlerd


This article presents the development of the maintenance, repair & operating supplies (MRO) inventory system for the operation of an international portyard. Steps in the improvements focused on setting up suitable ordering and controlling methods to work as an integrated inventory approach. Firstly, ABC classification technique was used to prioritize 3 groups of lubricants according to their annual-usage levels. Subsequently, three controlling methods as 1) periodic review system, 2) Min-Max system and 3) a maintenance plan were considerd in setting a buying plan for the different groups. Finally, purchasing and controlling plans were released for the real operation of the sample port. The proposed approach results in the reduction of shortage in lubricants by 88.99%, and the reduction of the MRO inventory cost of 65,853 bahts, which implied 11.19% of annual usage value.

Article Details

How to Cite
S. Chartniyom and J. Ngamlerd, “Lubricants Inventory Control for Marine Port Maintenance”, sej, vol. 15, no. 3, pp. 7–16, Oct. 2020.
Research Articles


K. Apiprachayakul, Inventroy Management. Bangkok: Focus Media and publishing, 2003.

R. H. Ballou, Business Logistics & Supply Chain Management – Planning ,Organizing, and Controlling the Supply Chain. 5th edition, Pearson Prentice-Hall, Pearson International, 2004.

K. Suwantararungsri, Improvement of Inventory Control in Sugar Cane Factory. Master Degree of Engineering, Chulalongkorn University, 2003.

N. Puttipong and T. Wasusri, “Inventory Control in Woven Rubber Factory”, KMUTT Research and Development Journal. pp. 91-107, 2006.

R. S. Russell, B. W. Taylor, Operations Management: Creating Value along the Supply Chain. 7th Edition, Virginia Tech, Wiley, 2010.

S. Chartniyom, “Demand Process and Forecasting,” in INE 467 Logistics and Supply Chain Management. Department of Industrial Engineering, Srinakharinwirot University, 2016.

P. Kittitulakanon, “Forecasting Method for The Requirement of Chemical fertilizer: Case study of Tabong Agricultural Cooperatives, Nakornsawan Province”, J. Itech., Lampang Rajabhat University, Vol. 10(1), 2017.

Minitab 18 Support. (2019). Example of Decomposition. [Online] Available:

S. Chartniyom, “Inventory Management,” in INE 467 Logistics and Supply Chain Management. Department of Industrial Engineering, Srinakharinwirot University, 2016.

P. Lumnoi, Development of Inventory Management: Case Study of Pharmacy Department, Nawamintharajini Hospitol. Department of Logistics and Supply Chain Management, Burapa University, 2015.

M. Chumsungneun, Improvement of Inventory Management for Spare Parts in Hard drive Industry. Department of Industrial Engineering, Chulalongkorn University, 2008.

S. Zhu, W. V. Jaarsveld, and R. Dekker, “Spare parts inventory control based On maintenance planning”, Ind. Eng. Inno. Sci. Technische Universiteit Eindhoven, 2019.