Penetapan Standar Feed Rate Mesin Molding untuk Mengurangi Losses Produksi Pintu Kayu di PT XYZ

Abstract

Kayu merupakan salah satu hasil hutan yang banyak digunakan industri manufaktur furniture. Ketersediaan kayu makin berkurang seiring bertambahnya permintaan bahan baku khususnya untuk industri manufaktur furniture pintu kayu. PT XYZ sebagai salah satu perusahaan manufaktur pintu kayu menggunakan mesin molding dalam proses produksinya. Mesin molding memiliki feed rate terhadap material yang memengaruhi losses serta kualitas akhir produk. Penelitian ini bertujuan mengidentifikasi feed rate dan losses aktual, menganalisis hubungan feed rate dengan karakteristik bahan baku, dan menetapkan standar feed rate mesin molding. Metode yang digunakan, meliputi analisis deskriptif-komparatif, six big losses, performance rate, regresi linear, dan akar masalah dengan fishbone. Hasil penelitian menunjukkan bahwa panjang material dan jenis bahan baku berpengaruh signifikan terhadap feed rate (R² = 0,524) dengan losses terbesar berasal dari short stop/change over, maintenance (62,29%) dan external factors (32,17%) sehingga menghasilkan nilai performance rate sebesar 42,43% dengan indikasi mesin belum beroperasi optimal. Mengacu hasil regresi linear, ditetapkan rekomendasi standar feed rate dalam bentuk tabel operasional berdasarkan jenis bahan baku dan kelompok panjang material dalam rentang nilai 6 sampai 12 m/min yang telah dibulatkan untuk memudahkan implementasi di lapangan. Penetapan standar ini diharapkan mampu meningkatkan efisiensi dan konsistensi kualitas serta menurunkan losses pada mesin molding di PT XYZ.

Wood is one of the forest products widely used in the furniture manufacturing industry. The availability of wood is decreasing as the demand for raw materials continues to increase, particularly for wooden door furniture manufacturing. PT XYZ, as a wooden door manufacturing company, utilizes a molding machine in its production process. The molding machine feed rate affects production losses as well as the final quality of wooden door products. This study aims to identify the actual feed rate and production losses, analyze the relationship between feed rate and raw material characteristics, and establish the standard feed rate for molding machine. The methods used include descriptive-comparative analysis, linear regression, performance rate analysis, six big losses analysis, and root cause analysis using a fishbone diagram. The results show that material length and raw material type significantly affect feed rate (R² = 0,524), with a performance rate of 42,43% indicating that the machine has not yet operated optimally. The largest losses were identified from setup & adjustment (62,29%) and external factors (32,17%). Based on the regression result, a recommended standard feed rate was established in the form of an operational table based on raw material type and material length groups, ranging from 6 until 12 m/min and rounded for easier implementation in the field. The implementation of this standard is expected to improve efficiency, ensure consistent product quality, and reduce molding machine losses at PT XYZ.