IMPLEMENTASI METODE MATERIAL REQUIREMENT PLANNING (MRP) PADA PERENCANAAN DAN PENGENDALIAN PERSEDIAAN BAHAN BAKU REINFORCING BAR

Abstract

The resources of a manufacturing company must be good to increase productivity and optimize the result, effective for business operations and support production and business, especially in industry. One of the prerequisites for working is the availability of raw materials. Raw material availability is neither excessive nor insufficient to adversely affect inventory stability and costs. The total production of S.10 rebar during the year was 51,122 pieces, S.13 rebar 65,543 pieces, S.16 rebar 89,668 pieces and S19 rebar 130,972 pieces. Frequency of ordering raw materials, delivery time and storage costs of raw materials are determined by MRP method, batch technique. The raw material order price for a total of one year is IDR 5,528,600. The total cost of raw material storage for 1 year is IDR 87,750,567,6875. The total cost of purchasing raw material for 1 year is IDR 20,154,860,026,6875.