Quality Control Analysis of Wood Pellet Products at PT XYZ Using the Seven Tools and New Seven Methods
Abstract
Quality is a factor that determines the success of a product in market competition. PT XYZ, which produces wood pellets, is experiencing problems related to the quality of its products. The company wants to control the quality of its products in order to reduce losses due to product defects. Product quality control is carried out using the seven tools method to determine the causes of defects and the new seven tools method which is used to see the corrective actions that must be taken based on the factors that cause product defects. The results showed that there are 3 types of defects in wood pellet products, namely water content that is too high, less density, and shape that is too small. From the total amount of 12,782 kg of defective products, 34.24% of them are the types of defects of too high moisture content, 30.50% defects of insufficient density, and 35.26% defects of too small shapes. The proposed improvements to prevent errors that can cause product defects can be done by tightening the implementation of company SOPs, improving worker performance and skills, optimizing machine performance, and improving the quality of the raw materials used.
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