Analisis Pengendalian Persediaan Bahan Baku Pada Pt Nt Piston Ring Indonesia di Karawang [JURNAL]
Inventory control is the activity of maintaining the amount of inventory at the desired level.
Inventory control policy will be raw materials become very important because with the policy of the
company are expected to be able to determine the amount of supplies that are effective and
balanced in its operational activities.
The research has the aims (1) to determine, describe and analyze how the raw material
Inventory control methods in PT. NT Piston Ring Indonesia, (2) to find out, explain and analyze how
the behaviour of the economic order quantity in pt. NT Piston Ring Indonesia, (3) to find out, explain
and analyze how to determine safety stock of raw material production of Piston Ring on PT. NT
Indonesia Piston Indonesia. Doing research on PT NT Piston Ring Indonesia, Karawang in July-August
2011. Primary Data were obtained from interviews with Assistant Manager Purchasing Planing
Control, as well as secondary data obtained from libraries, internet studies, as well as the document
company (sales data, financial reports, and data warehouses) that are relevant to research topics
Company performs the raw materials to the maker for the year 2011 the frequency as much as
12 times total order bookings amounted 309.688,7 kg. Most recent done the Production Planning and
Inventory Control (PPIC) by submitting a purchase order document to the maker. The waiting time of
procurement of required raw materials since the raw materials were ordered up to the raw materials
arrive at the company. PT. NT Piston Ring Indonesia, ordering raw materials from a variety of makers
have lead time for 4 months. The Production Planning and Inventory Control (PPIC) is responsible for
the storage of raw materials made by performing record-keeping of goods and warehouse
maintaining conditions of transitions of goods during in the warehouse . Analysis of EOQ inventory
control by the method of generating the quantity which is optimum for most raw materials for piston
ring 60.582,79 kg with the frequency of the most recent 5 times a year. The company must make a
reservation Reorder Point (ROP) while the level of inventory in the warehouse of 28.022 351 kg with
a Safety Stock (SS) of 28.018 351 kg. A comparative analysis of the cost of inventories conducted
between the company's inventory control by the method of EOQ. Inventory control company
produce the cost of inventories amounting to Rp. 16.185.034, 41 while the cost of the inventory with
the inventory control cost EOQ inventory yield Rp 15.175.989 Rp 1.009.044 Savings 40,41,43,98 or
6.23% can occur when companies do the EOQ method of inventory control.
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