Increasing energy demand encourages biomass utilization through the conversion of agricultural and forestry residues into biopellets. Corn stover has high moisture content and low calorific value, while sengon wood sawdust has a higher calorific value and therefore has the potential to improve biopellet characteristics as a blending material. This study aimed to analyze biopellet characteristics and determine the best treatment produced from corn stover and sengon wood sawdust. The best treatment was determined using a weighting method based on six parameters and statistical analysis using one-way ANOVA. The study began with preliminary testing to determine the appropriate mixture moisture content and die rotational speed to produce intact and uniform biopellets. The main experiment used five material compositions with an average mixture moisture content of 39.36% and stepwise die rotational speeds of 123–96–78 rpm. The results showed that material composition affected biopellet characteristics and resulted in highly significant differences in density, durability, and ash content (p < 0.001). The best treatment was obtained in A4, consisting of 70% corn stover and 30% sengon wood sawdust, producing a calorific value of 17.2 MJ/kg, density of 1.28 ± 0.04 g/cm³, combustion rate of 0.98 kg/h, specific electrical energy consumption of 1.84 kWh/kg, durability of 99.67 ± 0.04%, and ash content of 2.40 ± 0.49%, which met the requirements of SNI 8675:2018 for biopellet fuel.
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