Indonesian Journal of Electrical Engineering and Computer Science Vol. 24, No. 2, November 2021, pp. 762~770 ISSN: 2502-4752, DOI: 10.11591/ijeecs.v24.i2.pp762-770  762 Journal homepage: http://ijeecs.iaescore.com Automatic control of the sand granulation process to improve homogeneity in the manufacture of ceramic tiles Guillermo Morales-Romero 1 , Adrián Quispe-Andía 2 , Beatriz Caycho-Salas 3 , Nicéforo Trinidad-Loli 4 , Cesar León-Velarde 5 , Carlos Palacios-Huaraca 6 , Omar Chamorro-Atalaya 7 1,2,3,4 National University of Education Enrique Guzmán y Valle, Lima, Perú 5 University Tecnólogica del Perú, Lima, Perú 6 University Cesar Vallejo, Lima, Perú 7 Faculty of Engineering and Management, National Technological University of Lima Sur, Lima, Perú Article Info ABSTRACT Article history: Received Apr 1, 2021 Revised Sep 8, 2021 Accepted Sep 17, 2021 The purpose of this article is to quantify to what extent the design of an automatic control system for the clay sand granulation process will improve the percentage of homogeneity in the manufacture of ceramic tiles, through the analysis of the percentage of dust moisture. For which the process under study is initially described, identifying its stages, the control strategy to be used and its main characteristics. After conducting the research, it was determined that from the proposed control strategy, in which the flow of clay sand is controlled through frequency variators and the sequential injection of water spray through electric nozzles, it was achieved improve the homogeneity percentage by 94.78%, achieving that the error between the desired value and the present value of the humidity percentage is 0.015%, the approximation to the desired value or setpoint value being significant. Thus, it was also possible to determine that through an analysis of the dispersion model, that the collected data respond to a constant; evidencing that there is no sudden variation in the percentage of homogeneity during the automated operation of the process, which validates the improvement of homogeneity in the manufacture of ceramic tiles. Keywords: Ceramic tiles Control system Granulated powder Granulation process Homogeneity Quality This is an open access article under the CC BY-SA license. Corresponding Author: Guillermo Morales-Romero National University of Education Enrique Guzmán y Valle Comas, Lima- Peru Email: gmorales@une.edu.pe 1. INTRODUCTION Currently, companies constitute a support for competitiveness in the productive sector [1], [2], companies seek to achieve competitiveness based on the use of various technologies, in order to control the myriad of variables that determine the optimal operation of the industrial process and that guarantee quality production of the manufactured product [3]. Moreover, it is that in the current context in which we find ourselves, which is characterized by globalization and a highly competitive environment for companies, they seek to achieve and show a solid operational performance [4]-[6]. Becoming tools such as automatic process control, and fundamental means for the redesign of the evolution of industrial processes [7]-[10]. In this competitive context, demarcated by incessant innovative technical change, it is imperative to modify and reorient the philosophy of drive and operation of the components of a plant or production process [11]-[13]. Today, when talking about competitiveness and comparative advantages in industrial sectors, it is necessary to inquire about the potential of a country in relation to the technological component of innovation [14]-[16]; competitiveness in industrial sectors is also associated with the possibility of inserting and developing