The SK600AC model of the three-sided sealing bag making machine is designed with a servo system and double cutter. This machine is capable of working with various plastic composite materials such as BOPP, CPP, PET, PVC, and nylon. One notable feature of the SK600AC is its double-cutter device. This device ensures that the edges of the pockets produced are clean and tidy, without any sharp corners. As a result, the three-sided sealing pockets have a smoother feel to them. Overall, the SK600AC is a versatile and efficient bag making machine that can produce high-quality three-sided sealing pockets with ease.