Analisis Beban Kerja Mental Menggunakan Metode NASA TLX Pada bagian Operator Dilantai Produksi di PT. Socfindo Kebun Aek Loba

Abstract

PT. Socfindo Aek Loba Plantation is a company engaged in the oil palm factory field. The demand for production targets pushes the operator to have high pressure causing the mental workload. The hot air temperature in the boiler and boiling stations, the monotonous work and lack of communication in the stripper station and loading ramp; cause the workers to have the mental workload. An excessive mental workload can affect occupational stress and cause a decrease in performance, efficiency, and work productivity of the worker. The research at PT. Socfindo Aek Loba Plantation aims to evaluate the operator’s workload on the production floor through the National Aeronautics and Space Administration Task Load Index (NASA-TLX) method. The method includes six indicators of workload, namely: mental demand, physical demand, temporal demand, performance, effort, and frustration level. The NASA-TLX method was used to discover the operator's mental workload. The measurement result through the NASA-TLX method showed that the highest workload was found in the physical demand indicator of 88% in the reception station. Then, physical demand was the most dominant indicator to influence the operator's mental workload. The high level of operator's mental workload requires proposing certain improvements, namely: additional break time, operator rotation, shifting regulation, and a corrective towards working habit. Some influenced indicators on each work station were: in Reception Station was Physical Demand; in Composting Area was Mental Demand; in Pressing Station and Kernel Station were Physical Demands; in Boiler was Frustration Level.