INVENTORY POLICY REMANUFACTRING OF TRUCK ENGGINE IN PT KOMATSU INDONESIA

• Main Author: PRATAMA YUDA - Nim: 13415601, ANGGI
• Format: Final Project
• Language: Indonesia
• Online Access: https://digilib.itb.ac.id/gdl/view/21097
• Institution: Institut Teknologi Bandung

PT Komatsu Indonesia is a remanufacturing company located in Kawasan Berikat Nusantara, Cakung-Cilincing, North Jakarta and remanufacturing for Engine, Power Line Ckomponent, Pinton Pump and Motor, and Sub Ckomponent. <br /> <br /> <br /> PT Komatsu Indonesia (plant remanufacturing) is currently having difficulties in managing the availability of parts. This is indicated by the problems of overstock and stock out especially the 5C parts that is Cylinder head (CH), Cylinder block (CB), Crankshaft (CR), Connection Rod (CCR), and Camshaft (CS). The phenomenon that occurs due to the absence of a remanufactured inventory policy to determine the size of order and parts safety stock. This condition becomes increasingly complex with high fluctuations of demand for parts and reusable parts. Currently, the company only makes inventory policies based on a manufacturing system that does not consider reusable parts, so the inventory policy used is not in accordance with the conditions in PT Komatsu Indonesia at this time. Thus, an inventory policy method is needed, that consider the parameters of the number of reusable parts to minimize total inventory cost. <br /> <br /> <br /> The model used as the reference for this problem is the formulation of the remanufacturing model developed by Muckstadt & Isaac (1981). This model can only be used to manage individual parts. From the model calculation, the total inventory cost of CH is Rp 15,664,412 to Rp 22,252,363 per region, CB Rp 125,658,304 to Rp 218,616,861 per region, CR Rp 28,654,533 to Rp 49,960,019 per region, CS left Rp 4,520,349 to Rp 7,327,498 per region, CS right of Rp 4,664,580 to Rp 7,085,243 per region, CCR left of Rp 4,674,034 to Rp 9,597,571 per region, and CCR right of Rp 4,674,034 to Rp 9,597,571 per region in one period. <br /> <br />