ANALISIS PERENCANAAN KEBUTUHAN MATERIAL (MRP) BAHAN BAKU PRODUK BATAKO DAN PAVING BLOCK ( Studi Kasus di UKM Areta Agung Palembang)

Areta Agung UKM is one of the industries in South Sumatra Province, Palembang
City which is engaged in building materials, especially brick and paving blocks.
Raw materials for producing bricks and paving blocks must always be available
to expedite the production process. If Areta Agung SMEs do not have sufficient
raw material supplies, the implementation of the production process will be
hampered. In Areta Agung UKM itself, several times there is a shortage of raw
materials. As a result of the shortage of raw materials, other costs will arise due
to the shortage of raw materials (stock out) and the occurrence of idle time or idle
time. To get the optimal amount of raw material inventory, Areta Agung UKM
needs to plan the amount of raw materials to be purchased, when to purchase raw
materials, so that the production process is not hampered due to lack of raw
materials. To determine the amount of raw materials to be purchased and when to
purchase raw materials, forecasting is carried out using the Moving Average
(MA) and Exponential Smoothing methods. with Lot Sizing EOQ and LFL
techniques. Based on the calculation results of the total cost of raw material
inventory, the lot sizing method chosen is the EOQ method with a total cost of Rp.
6,685,000, while the Raw Material Cost of Areta Agung Palembang SMEs is Rp.
7,045,000. Areta Agung Palembang SMEs pay more attention to the problem of
ordering raw materials, so that the production process can run smoothly to meet
demand.

Key words: Raw material inventory, Moving Average, Exponential Smoothing, MRP, EOQ, LFL