The MY-S90 fully automatic open cam ultrasonic paper cup forming machine, with a speed of 120 units/minute, is a medium-speed machine designed for forming paper cups. It was developed based on the current S100 model to produce small-sized cups under 9 ounces at a consistent speed ranging from 100-110 units/minute. The machine utilizes a sensor monitoring alarm system, a PLC system, and an automatic lubrication system for the transmission system. It also features an automatic cup counting function for the cup collector. The machine can be used for single/double PE paper and is capable of separating defective and faulty cups