OPTIMALISASI SISTEM PERSEDIAAN BAHAN BAKU KARET MENTAH (LATEKS) DENGAN METODE LOT SIZING (STUDI KASUS: PT ABAISIAT RAYA)
Abstract: PT Abaisiat Raya is
one of the manufacturers of rubber crumb (crumb rubber) in the city of Padang.
Latex inventory management system at PT Abaisiat Kingdom basically signinfikan still
need improvement. It is based on the planning activities in the warehouse
inventory of raw materials firms irregular, thus causing excess stock (over
stock) at a time and shortage of stock (stock out) at other times. Process
optimization is done with latex inventory system involving factors such as
demand forecasting production planning or latex needs during the period of
next 12 (in
2012), the costs
involved, the waiting
time (lead time),
the implementation of forecasting
methods, determination of
size lots (lot
sizing), the determination of
safety stock (safety stock), and re5ordering time (reorder point), so the output
will get a number of requests are for 12 periods ahead, the size of each
reservation period, the total
cost is required,
when re5ordering will
be done ,
as well as
how much inventory to latex in
the warehouse. Based on these results, it was found that the optimal size of
the book is
the same as
the demand for
each period (reservation
is made each period) due to a cyclical pattern of
demand and decreases throughout the planning period. Value of the stock or
safety stock is located in Kg 114,282.20, and re5ordering time (reorder point)
to cope with fluctuations do when the stock has reached a level of 333,130.95
kg.
Penulis: Dina Rahmayanti,
Ahmad Fauzan
Kode Jurnal: jptindustridd130354
