Mental Workload and Ergonomic Analysis on Production Department at PT. XYZ

This research aims to identify mental workload with  NASA-TLX (Task Load Index)  on packaging division and work posture on processing division at PT. XYZ. This research uses RULA (Rapid Upper Limb Assessment) and REBA (Rapid Entire Body Assessment) methods for work posture analysis. NASA-TLX is  used to determine mental workload in packaging division. RULA is used to determine the upper body musculoskeletal disorders (MSDs) injury in the process of production (which consists of weighing and processing station) at PT. XYZ and REBA is used to determine entire body MSDs injury in the production process. Those methods are applied to indicate that the workers are in fact working above the safety limit. Based on NASA-TLX method, it is clear that 21 of 30 workers feel that the work is very heavy. Another case, two unusual postures are found, one is determined by the action level of the worker who lifting 20 kgs sack of powder is 10, so the action level of REBA, in this case, is hardly dangerous. The other one is determined by a worker who entering an ingredient to the machine, weight of the ingredient is 17,05 kgs. It means more than 10 kgs, and thus it can affect body posture.