ABSTRAK
PT ABC bergerak di bidang industri manufaktur memproduksi herbisida selektif
sediaan cair. PT ABC memiliki dua bagian dalam departemen produksi yaitu
bagian formulasi dan repack. Permasalahan yang sering terjadi adalah proses
repack herbisida kemasan 40 mL mengalami kehilangan herbisida dan pelaporan
output WIP setiap akhir shift tidak direkam secara baik oleh operator. Sejak bulan
Januari sampai Juni 2023 terjadi kehilangan herbisida sebanyak 249 liter atau
1,42% dimana ini melebihi batas maksimal kehilangan herbisida sebesar 1%.
Penelitian ini bertujuan untuk mengidentifikasi waste pada proses repack
herbisida kemasan 40 mL beserta faktor penyebab terjadinya, serta usulan
perbaikan dengan menggunakan pendekatan Lean Manufacturing. Penelitian
diawali dengan pengumpulan data, seperti alur proses, waktu prores, observasi
dan wawancara Brainstroming. Selanjutnya dilakukan pemetaan aliran ptoses
menggunakan Value Stream Mapping (VSM) dan Process Activity Mapping
(PAM). Lalu dilakukan identifikasi waste dan faktor penyebabnya menggunakan
diagram fishbone. Setelah diketahui waste dan penyebabnya, dibuatkan usulan
perbaikan guna meminimasi waste. Jenis waste yang teridentifikasi adalah
penggunaan bahan baku berlebih dan proses tidak tepat (inappropriate
processing) dengan faktor penyebab utama tercecernya herbisida saat proses
transfer ke hopper akibat penggunaan handpump dan kesalahan hitung saaat
proses menghitung WIP yang dilakukan secara manual. Lalu diberikan usulan
perbaikan mengganti drum dengan IBC yang diberikan dudukan serta adaptor
keran sesuai desain, pengadaan sensor hitung otomatis, pengadaan papan untuk
penyusunan WIP, serta APD, pelatihan dan sosialisasi SOP untuk menunjang
kinerja operator.
Kata kunci: herbisida, repack, lean manufacturing, value stream mapping,
process activity mapping, fishbone
ABSTRACT
PT ABC is engaged in the manufacturing industry producing liquid selective
herbicides. PT ABC has two sections in the production department, namely the
formulation and repack sections. The problem that often occurs is that the process
of repacking 40 mL herbicide packages experiences loss of herbicide and the WIP
output reporting at the end of each shift is not recorded properly by the operator.
From January to June 2023 there was a herbicide loss of 249 liters or 1.42%,
which exceeds the maximum herbicide loss limit of 1%. This research aims to
identify waste in the 40 mL herbicide repack process along with the factors
causing it, as well as suggestions for improvements using the Lean Manufacturing
approach. The research began with data collection, such as process flow, process
time, observation and brainstorming interviews. Next, process flow mapping is
carried out using Value Stream Mapping (VSM) and Process Activity Mapping
(PAM). Then identify waste and its causal factors using a fishbone diagram. After
knowing the waste and its causes, proposals for improvement are made to
minimize waste. The type of waste identified is the use of excess raw materials and
inappropriate processing, with the main factors being the spillage of herbicide
during the transfer process to the hopper due to the use of a handpump and
calculation errors during the manual WIP calculation process. Then
recommendations for improvements were given to replace the drum with an IBC
which was provided with a stand and tap adapter according to the design,
procurement of automatic counting sensors, procurement of boards for preparing
WIP, as well as PPE, training and dissemination of SOPs to support operator
performance.
Keywords: herbicide, repack, lean manufacturing, value stream mapping, process
activity mapping, fishbone