STATISTICAL MONITORING OF MASS VARIABILITY IN GYPSUM PACKAGES
DOI:
https://doi.org/10.5007/2175-8018.2026.e113743Palavras-chave:
Gypsum, Statistical Process Control, Process Capability, Package Mass, Quality ManagementResumo
This study presents a case analysis of statistical process control and process capability in gypsum powder packaging at a manufacturing company located in the Araripe Gypsum Production Cluster, Pernambuco, Brazil. Its originality lies in applying and jointly interpreting descriptive statistics, normality testing, Individuals and Moving Range (I-MR) control charts, and process capability indices to examine package-mass variation in an industrial context that has received limited attention in the literature. Based on 150 consecutive package-mass measurements collected during a single production shift, the study provides a structured assessment of process behavior in relation to the company's internal packaging specifications. The proposed analytical approach offers practical support for identifying process improvement priorities, monitoring variation, and guiding decisions regarding equipment adjustment, measurement systems, and operating procedures. The findings also illustrate the value of distinguishing process stability from the ability to meet specification limits, helping managers avoid relying on a single statistical indicator when evaluating packaging performance. This case study contributes to the application of statistical quality tools in gypsum manufacturing and provides a methodological reference for future investigations of packaging processes in mineral-based industries.
Downloads
Publicado
Como Citar
Edição
Seção
Licença
Copyright (c) 2026 Pedro Vieira Souza Santos, Andréa de Vasconcelos Ferraz (Autor); Vitor Hugo dos Santos Filho (Tradutor); Fahad Saddique (Autor)

Este trabalho está licenciado sob uma licença Creative Commons Attribution 4.0 International License.
Submeteremos nosso trabalho à Revista Ibero-Americana de Engenharia Industrial (IJIE) e os autores compreendem que o conteúdo será disponibilizado sob a Licença Internacional Creative Commons Atribuição (CC BY) 4.0 , que permite o uso, compartilhamento, adaptação e criação de obras derivadas, inclusive para fins comerciais, desde que seja claramente atribuída a autoria e confirmada a partir da publicação original na IJIE.
Além disso, os autores estão autorizados a assinar acordos adicionais que permitam a divulgação não exclusiva da versão publicada do artigo (por exemplo, em repositórios institucionais, páginas pessoais, traduções ou capítulos de livros), desde que haja referência clara à autoria e à publicação inicial neste jornal .


