BC-S850 Servo plastic cup forming machine typically uses a servo motor to control the movement and precision of the forming process, resulting in high-quality and consistent cup products. The machine may also include additional features such as automatic feeding and stacking, as well as customizable settings for different cup sizes and materials.private server cupping machines offer a number of advantages over traditional hydraulic cupping machines, including increased precision, faster production speed, reduced labor costs, consistency, and customization.