Jurnal REDUCING MAJOR LEAN WASTE IN PT. ASIA FORESTAMA RAYA WITH LEAN SIX SIGMA APPROACH
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REDUCING MAJOR LEAN WASTE IN PT. ASIA FORESTAMA RAYA WITH LEAN SIX SIGMA APPROACH.
S1 thesis, UAJY.
Competition among manufacturing industries has been intensified in recent years, every manufacturing organization contends on the ability to satisfy the growing complexed needs of its customers. The similar condition applies to wood processing industries, especially in Southeast Asia as one of the major suppliers of hardwood products in the international market. PT. Asia Forestama Raya is a wood processing company located in Pekanbaru, Indonesia that mainly produces raw plywood for local and international markets. There are several lean wastes generated by production processes observed such as transportation, overprocessing, defects, motion, and inventory. In order to gain competitive advantage in Southeast Asia region, the company must be able to fulfill demand with competitive price and superior quality by reducing major lean waste in the production system.
The objectives of this case study are to select major lean waste in plywood production and implement solutions in order to reduce the major lean waste. This study is executed using Lean Manufacturing which focuses on selecting major lean waste using Analytic Hierarchy Analysis (AHP), followed by Six Sigma DMAIC to reduce the major lean waste.
Obtained results from AHP analysis indicate that the major lean waste being selected by the team is defect (43%) based on its influence. The DMAIC phase is reduction of uneven core thickness as the most dominant focus of systematic defect in 2.7mm LFE raw plywood. The uneven core thickness significantly by 3% percentage has reduced defect from 29.58% to 26.58% after implementation. Similarly, reject rate of 2.7 mm LFE raw plywood has also decreased by 0.88% from 3.04% to 2.15%.
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