PERTANIKA JOURNAL OF SCIENCE AND TECHNOLOGY

Whole-body vibration (WBV) exposure is a significant occupational hazard in mining and heavy machinery operations, which can lead to long-term musculoskeletal and physiological disorders. This study investigates the magnitude of vibration exposure experienced by mine equipment operators under actual field conditions. Vibration measurements were conducted using a tri-axial accelerometer integrated with a customised data acquisition system. The signals were processed using appropriate filtering and frequency weighting techniques according to ISO 2631-1 standards. Key parameters such as root mean square (RMS) acceleration, daily exposure value A(8), and vibration dose value (VDV) were evaluated and compared with the Health Guidance Caution Zone (HGCZ) limits. The results show that the operators of dumpers and wheel loaders are exposed to vibration levels exceeding recommended threshold limits, particularly along the vertical (Z) axis, thereby increasing the risk of musculoskeletal disorders. The findings highlight the need for effective vibration mitigation strategies, including ergonomic interventions, improved seat suspension systems, and optimised work schedules. This research offers useful guidance on how to evaluate and control whole-body vibration (WBV) exposure in mining settings.