ANALISA PRODUKTIVITAS DAN EFISIENSI KERJA DENGAN LINE BALANCING PADA AREA LEAD CONNECTION DI PTA
Abstract
PTA merupakan perusahaan produksi Power Transformer (Trafo). Perusahaan ini memiliki kapasitas 10.000 MVA per tahun dan menghasilkan daya Transformers 200 kVA sampai 500MVA dan 6,3 kV sampai 550kV. Pada tahun 2015 ini PTA ditunjuk oleh PT. PLN (Persero) untuk mengerjakan 80 unit Trafo Open Book (OBP) Tender dan 39 Unit Trafo dengan pembiayaan IBRD. Dengan order dari PT. PLN (Persero) mengharuskan dilakukan pembenahan dalam pada efisiensi dan produktifitas. Sehingga dilakukan analisa departemen produksi periode Minggu ke 38 sampai dengan 51 yang poduktivitas dan efisiensinya paling rendah. Dari data yang didapat rata-rata produktivitas 4 departemen dengan proses terdekat yaitu Core Stacking, Core Coil Assembly, Lead Connection dan Final Assembly adalah Deptartemen Lead Connection 59% dari rata-rata 76%. Kemudian dengan menggunakan metode Line Balancing dengan Simulasi ALBACA produktivitas diharapkan mencapai 76% dari target produktivitas dan efisiensi kerja Perusahaan tahun 2015 yaitu 85%. Selain menggunakan Line Balancing juga dilakukan improvement dengan menganalisa dengan DMAIC sixsigma untuk menstandarkan proses. Simulasi dan analisa kemudian diaplikasikan ke produksi pada Minggu 1 sampai Minggu ke 3 tahun 2016 dan hasilnya mencapai rata-rata produktivitas secara keseluruhan mencapai 88% dan Lead Connection dari 59% menjadi 76% meningkat 17%. Dengan aplikasi tersebut peningkatan nyata bisa mendekati yang diharapkan.
Kata Kunci: Line Balancing, Simulasi ALBACA, DMAIC Six Sigma.
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