Authors

Norman Iskandar

Mechanical Engineering, Diponegoro University, Semarang, Indonesia

Nurul Aulia

Mechanical Engineering, Diponegoro University, Semarang, Indonesia

Sulardjaka

Mechanical Engineering, Diponegoro University, Semarang, Indonesia

Abstract

Occupational noise is one of the dominant physical hazards in manufacturing industries, particularly in grinding operations involving high-speed rotating machinery. Excessive noise exposure may cause hearing impairment, decreased concentration, communication difficulties, and reduced productivity. This study aims to analyze the noise intensity generated during grinding activities under idle and load operating conditions and evaluate occupational noise control using the Plan-Do-Check-Act (PDCA) approach in a steel fabrication industry. Noise measurements were conducted using a sound level meter positioned near the operator’s hearing zone during grinding operations. The results showed that noise intensity ranged from 94 dB to 106 dB, exceeding the occupational exposure limit regulated by Indonesian safety standards. Higher noise levels were observed during load conditions due to increased friction and machine vibration. The evaluation results indicate that current control systems still rely mainly on personal protective equipment, while engineering-based controls remain limited. Therefore, improvements involving preventive maintenance, periodic monitoring, operator compliance enhancement, and engineering noise control are recommended to improve occupational safety performance in manufacturing industries.

Keywords

Occupational noise Ginding process PDCA Manufacturing safety Hearing protection Industrial environment.

Citation of this Article

Norman Iskandar, Nurul Aulia, & Sulardjaka. (2026). Occupational Noise Intensity Analysis of Grinding Operations and Risk Control Evaluation Using the PDCA Method in a Steel Fabrication Industry. International Current Journal of Engineering and Science (ICJES), 5(5), 25-31. Article DOI: https://doi.org/10.47001/ICJES/2026.505004

Licence Copyright (c) 2026 International Current Journal of Engineering and Science. This work is licensed under a Creative Commons Attribution Non Commercial 4.0 International Licence.

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