Medical bag making machine adopts the latest double-unwinding device, pneumatic tension, automatic correcting with magnetic powder tension, exported photo-electric, the fixed-length is controlled by servo motor from panasonic, exported man-machine interface control, exported inventor, automatic punch device. It adopt one time/two times hot sealing, it have high precision, high speed, heavy pressure. It is specialized for making medical bags with paper/paper. Paper/plastic. Such as, hot sealing flat bag, standing flat bag.