Introduction: This study aimed to explore changes in the mechanical properties of volleyballs having different weights and structures. Methods: In this study, we used two series of volleyballs (the Conti-3000 and Conti-7000) weighing 230 ± 10 g, 270 ± 10 g, and 340 ± 10 g to measure their dynamic mechanical properties (contact time, mean force, peak force, total impulse, flight velocity, initial momentum, incident impulse, and lost momentum) after they were served onto a force plate by a serving machine installed three meters above the ground. The obtained data were then examined with intraclass correlation coefficients (ICC) to determine their reliability, and the interaction effects of ball type and mass were also analysed with two-way ANOVA. Trend Analysis was then used to examine the differences in volleyballs of different weights. Results: The results revealed that the data reliability was between 0.997 and 0.999. Despite the differences in weight, none of the mechanical parameters of group × weight had significant interaction effects (p ＞ 0.05). A comparison of the Conti-3000 and Conti-7000 indicated that, other than total impulse, all parameters had significance differences (p ＜ 0.05). The Conti-3000 results were significantly higher than those of the Conti-7000 in contact time, peak force, flight velocity, and initial momentum. Moreover, the Conti-7000 results were significantly higher than those of the Conti-3000 in mean force, incident impulse, and lost momentum. All the mechanical parameters were affected by the changes in ball mass and showed an obvious linear change (p ＜ 0.05). Other than flight velocity, which was decreased by the higher ball mass, all parameters were increased by it. The Pearson's correlation coefficient revealed a significantly negative relationship between contact time and flight velocity (r = -0.957, p ＜ 0.001). Conclusion: From the flight velocity factor, it was found that, although the use of foamed elastomer padding in the ball structure (Conti-7000) can increase the bounce and liveliness of a ball, it also increases the level of energy loss. Furthermore, by increasing the thickness of the cloth wrap carcass (cloth wrapped around the center), the power of a volleyball can also be increased. However, doing so also increases the speed of energy loss. Therefore, significant trends in the kinetic parameters of volleyballs can be manipulated through different combinations of ball mass and structure.