PERANCANGAN METODE PERENCANAAN DAN PENGENDALIAN PRODUKSI SISTEM MRP TERTUTUP TERMODIFIKASI PADA AREA PRODUKSI PER KOIL PT CLOVER
PT Clover is one of the companies that produce products in the form of spring beds or mattresses as its main product. This research is focused on the production area of spring coil, which is the production area for producing semi-finished mattresses, starting from making springs of raw wire that...
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| Format: | Final Project |
| Language: | Indonesia |
| Online Access: | https://digilib.itb.ac.id/gdl/view/51751 |
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| Institution: | Institut Teknologi Bandung |
| Language: | Indonesia |
| Summary: | PT Clover is one of the companies that produce products in the form of spring beds
or mattresses as its main product. This research is focused on the production area
of spring coil, which is the production area for producing semi-finished mattresses,
starting from making springs of raw wire that made from steel, assembling the
mattresses frame using those springs, until polishing the mattresses frame of the
assembled. A symptom of problem arising in the production area of spring coil is
the buildup of Work in Process (WIP) caused by the lack of structured production
planning and control and unknown safety stock provision policy for each WIP.
Therefore, it will be designed production planning and control methods to lower
the WIP produced in the production area of spring coil and will be established a
policy of providing safety stock for each such WIP.
To lower the WIP produced in the production area of spring coil, a modified closedloop
Material Requirements Planning (MRP) system planning and control method
was designed. In addition, the policy of providing safety stock for each WIP in one
week is obtained by multiplying the standard deviation of each WIP demand in the
previous week with the service level desired by the management.
Based on the simulation of proposed production planning and control methods
using varied product demand scenarios, it was obtained that for the case of
production planning in the second week of February 2020, 17 of the 21 types of
WIP produced in the production area of spring coil could be lowered on average
inventory per day. This is in line with the purpose of developing production
planning and control methods in this study, namely to lower the WIP produced in
the production area of spring coil.
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